Boulder, CO
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Most looked-up rules in Boulder
The topics readers look up most across the site, as they apply in Boulder.
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🏡 Home & Property
🏠 Renting & Housing
🔊 Noise & Neighbors
🐾 Animals & Farming
🚗 Parking & Streets
💼 Business & Licensing
📋 Permits, Signs & Events
🌎 Environment & Utilities
🛡️ Privacy & Civic
📋 Other
🚗 Parking Rules
Preferential Parking Districts
Some RestrictionsBoulder designates neighborhood permit parking zones under Section 2-2-15 based on an annual Priority Based Neighborhood Access Management study; residents are limited to one permit…
Commercial & Oversized Vehicles
Significant RestrictionsBoulder prohibits parking a commercial vehicle on any street in every residential zone, from RR-1 through RH-7, MH, P, and A, for more than 30 minutes between 8 p.m. and 7 a.m. Boulder…
RV & Boat Parking
Some RestrictionsBoulder lets homeowners store travel trailers, boats and boat trailers, motorized dwellings, and similar recreational equipment in residential yards, but Section 9-9-6(f), B.R.C. 1981…
EV Charging
Some RestrictionsBoulder reserves parking spaces marked for electric vehicle charging, on both public and private property, exclusively for plug-in electric vehicles. Section 7-6-30, B.R.C. 1981, also…
Driveway Rules
Some RestrictionsBoulder bars parking in a required landscaped setback abutting a street. Homes in the RR, RE, RL, A, or P districts get one exception: up to two vehicles may sit in a driveway inside…
Loading Zones
Some RestrictionsBoulder Revised Code Section 7-6-21 caps loading zone parking at thirty minutes for freight and three minutes for passengers, unless a posted sign sets a shorter limit. Every alley in…
Street Parking Limits
Some RestrictionsBoulder Revised Code Sections 7-6-8 and 7-6-13 require vehicles to park facing the direction of travel on the near curb and ban parking within five feet of any driveway. A first…
Overnight Parking
Some RestrictionsBoulder bars leaving any vehicle parked on a city street for more than 72 hours without moving it, whether the purpose is overnight storage or something else. Under Section 7-6-20…
Abandoned Vehicles
Significant RestrictionsBoulder treats any vehicle left in one spot on public or private property for 24 hours past a posted limit, or 72 hours where unregulated, as an abandoned public nuisance, and any…
Curb Color Rules
Some RestrictionsBoulder CountyBoulder County controls parking through official signs, painted areas, and other parking control devices. Only the County Engineer may authorize their placement, and you must obey them…
Towing & Impound Rights
Significant RestrictionsColoradoColorado's Towing Bill of Rights, C.R.S. 40-10.1-405, governs only nonconsensual ("predatory") tows that PUC-permitted towing carriers pull from private property and common parking…
🌿 Landscaping Rules
Composting
Light RestrictionsBoulder lets any resident keep a compost pile as long as it sits in a segregated area with alternating layers of plant material meant to decompose into a soil conditioner. The person…
Tree Trimming
Some RestrictionsBoulder Municipal Code section 6-6-5 prohibits anyone except the city manager from spraying, mulching, fertilizing, cutting, or pruning any living plant on city property without first…
Weed Ordinances
Some RestrictionsBoulder Revised Code § 6-2-3(a) caps state-listed noxious weeds on any lot, occupied or not, at twelve inches, and requires Colorado Department of Agriculture List A species to be…
Tree Removal & Heritage Trees
Some RestrictionsBoulder Municipal Code section 6-6-2 lets the city manager enter private property without a warrant to inspect trees and order removal of dead trees or overhanging limbs that endanger…
Water Restrictions
Significant RestrictionsBoulder lets the city manager declare a drought alert stage and then impose drought response measures, including watering and new-landscape-irrigation restrictions, under City Code…
Rainwater Harvesting
Some RestrictionsColoradoColorado law universally permits residential rooftop rainwater collection up to two rain barrels totaling 110 gallons, overriding the state's strict prior-appropriation doctrine that…
🐔 Animal Ordinances
Wildlife Feeding
Significant RestrictionsBoulder Revised Code § 6-1-4(c) makes it unlawful to feed any wild animal within city limits, defining feed broadly to include bones, salt licks and water, not just food scraps. The…
Bird Protection
Significant RestrictionsBoulder Revised Code § 6-1-35 makes it unlawful to shoot at, wound, kill, capture, ensnare, net, trap, or injure any wild bird within the city, or to damage a protected bird's eggs or…
Exotic Pets
Heavy RestrictionsBoulder Revised Code § 6-1-4 bans owning, keeping, or publicly displaying fifteen categories of wild and exotic animals, including bears, big cats, venomous reptiles, primates…
Veterinary Clinic Zoning
Some RestrictionsBoulder's Table 6-1 use schedule bars animal hospitals and veterinary clinics from every residential district and from Public and Agricultural land, allows them by right in Business…
Cat Rules
Light RestrictionsBoulder Revised Code § 6-1-15(a) is the reason cats can legally roam the city: it exempts dogs and domestic cats from the general ban on animals running loose off their owner's…
Dog Leash Laws
Some RestrictionsBoulder Revised Code § 6-1-16 requires every dog to stay on its guardian's premises unless it is on a leash held by a person or confined inside a vehicle without access to passers-by…
Chickens & Livestock
Some RestrictionsBoulder Revised Code § 6-1-41 bans keeping swine, hogs, or pigs anywhere in the city, and requires at least half an acre of lot area per animal for horses, goats, sheep, cows, llamas…
Breed Restrictions
Few RestrictionsBoulder CountyBoulder County has no breed-specific dog ban. Colorado state law (C.R.S. 18-9-204.5) regulates dangerous dogs by behavior, not breed, and C.R.S. 18-9-204.5(5)(b) bars any local…
Beekeeping
Some RestrictionsBoulder CountyBoulder County Land Use Code 4-516.D permits accessory beekeeping by right in the F, A, RR, ER, SR, LI, GI, and MI zones. It is an Open Agricultural use. In the Suburban Residential…
Pet Limits
Heavy RestrictionsBoulder CountyBoulder County has no separate 'hoarding' ordinance, but Ordinance 2022-8 makes it unlawful to fail to provide any livestock or domestic animal with minimum care, or to neglect…
Mandatory Spay/Neuter
Light RestrictionsBoulder CountyBoulder County does not require pet owners to spay or neuter their animals. Its Animal Control Ordinance No. 2022-8 instead doubles the fine for an unneutered or unspayed dog caught…
🔊 Noise Ordinances
Quiet Hours
Some RestrictionsBoulder's nighttime noise curfew runs 11 p.m. to 7 a.m. Under Boulder Revised Code § 5-9-6(b), anyone on public property in a residential district during those hours is barred from…
Aircraft Noise
Significant RestrictionsBoulder controls aircraft noise and hazards through an Airport Influence Overlay Zone rather than a decibel ordinance. New construction near Boulder Municipal Airport may require a…
Construction Hours
Some RestrictionsBoulder bars audible construction power tools in a residential zone between 9 p.m. and 7 a.m. under Boulder Revised Code § 5-9-7(b): if the tool can be heard off the property where it…
Decibel Limits
Some RestrictionsBoulder Revised Code § 5-9-3 sets fixed decibel ceilings by the zoning district where sound lands: 55 dBA by day and 50 dBA at night on residential property, 65/60 dBA on mixed-use and…
Vehicle Noise
Some RestrictionsBoulder caps the noise a motor vehicle makes in the public right-of-way at 80 dBA (88 dBA for trucks rated 10,000 pounds or more), measured 25 feet from the vehicle, under Boulder…
Leaf Blower Rules
Some RestrictionsBoulder bans lawn mowers, leaf blowers, and other power lawn or garden tools between 9 p.m. and 7 a.m. on private property within, or within 100 feet of, a residential district…
Amplified Music & Outdoor Sound
Some RestrictionsBoulder limits how far amplified sound may carry from the property where it originates. Under Boulder Revised Code § 5-9-6(a), amplified sound in a residential district may not be…
Barking Dogs
Some RestrictionsBoulder Revised Code § 6-1-19 bars any animal guardian from letting a pet disturb the peace with loud, persistent or habitual barking, howling, yelping or similar noise, on or off the…
🔥 Fire Regulations
Fireworks
Heavy RestrictionsBoulder outlaws fireworks outright: Section 5-6-6 bans possessing, manufacturing, storing, selling, or using any firework unless the city fire marshal has issued a permit for a…
Smoke Detectors
Some RestrictionsBoulder's Property Maintenance Code requires the owner or agent to check hardwired smoke alarms once a year and test battery-powered alarms annually, with extra installation duties for…
Brush Clearance
Some RestrictionsBoulder requires new buildings in mapped wildland-urban interface areas to clear fuel out to the distance set in Wildland Code Table 603.2, or to the lot line if that is closer, and to…
Outdoor Burning
Heavy RestrictionsBoulder bans open burning of trash, brush, and wood citywide. Fire Code § 307(1), reenacted at BRC 10-8-2(b)(13), makes it unlawful to kindle or maintain any bonfire or burn trash…
Propane Storage
Some RestrictionsBoulder requires a construction permit before anyone installs an LP-gas (propane) system in the city, with the fire department's Community Risk Reduction division serving as approving…
Wildfire Zones
Some RestrictionsBoulder maps every parcel into a wildland-urban interface fire hazard class under Wildland Code Section 502.1, and any building constructed, modified, or relocated within that mapped…
Fire Pits & Backyard Fires
Heavy RestrictionsBoulder bans mobile and portable outdoor fireplaces, the store-bought steel bowl or basket fire pit, everywhere in the city under Fire Code § 307(2). A recreational fire is only legal…
🏠 Short-Term Rentals
Noise Rules
Some RestrictionsBoulder has no separate short-term-rental noise ordinance; a loud STR party falls under B.R.C. § 5-3-11, Nuisance Party Prohibited. Any owner, occupant, or renter who hosts a gathering…
Host Platform Liability
Some RestrictionsInside a Boulder lodging business assessment area, a hosting platform that collects payment from a short-term rental lodger must set aside and remit the LBAA fee to the city. The duty…
Taxes & Fees
Some RestrictionsBoulder imposes a 7.5 percent excise tax on the price paid for short-term rental lodging under Section 3-15-2. Renters pay it, hosts and platforms must collect and remit it, and after…
Repeat Violator Strikes
Significant RestrictionsBoulder enforces short-term rental violations through an escalating civil penalty schedule: $150 for a first violation, $300 for a second, and $1,000 for a third of the same provision…
Short-Term Rental Permits
Heavy RestrictionsShort-term rentals are illegal in Boulder without a city-issued license. Section 10-3-19(a) bars anyone from operating a short-term rental unless the city manager has issued a valid…
Host Presence Rule
Some RestrictionsBoulder does not require the host to be on-site, but every short-term rental application must list two contacts who can reach the property within 60 minutes. Section 10-3-19(c)(5)…
Primary-Residence-Only Rule
Significant RestrictionsBoulder only licenses a short-term rental in the unit the licensee actually lives in. BRC 10-3-19(j) requires the dwelling rented as a short-term rental to be the licensee's principal…
Night Caps
Significant RestrictionsAn accessory dwelling unit rented as a short-term rental in Boulder is capped at 120 nights a year. Section 10-3-19(o)(5) sets that limit only for ADUs; it does not apply to a…
Occupancy Limits
Some RestrictionsBoulder ties short-term rental occupancy to the same limit that governs any other rental unit. Section 10-3-19(i) caps overnight guests in a short-term rental at whatever occupancy the…
Short-Term Rental Parking Rules
Some RestrictionsBoulder CountyApplicants must submit a parking plan and provide satisfactory on-site parking. Short-term rentals need two on-site spaces; vacation rentals need two spaces or one per four occupants…
Insurance Requirements
Some RestrictionsBoulder CountyYes. Applicants must show a certificate of insurance with adequate liability and property limits insuring at least $500,000 in liability and reflecting rental exposure. Coverage must…
🧱 Fence Regulations
Fence Permit Requirements
Some RestrictionsBoulder regulates fences, walls, and hedges under Land Use Code Section 9-9-15, capping most fences at seven feet and barring placement within eighteen inches of a public sidewalk…
Neighbor Fence Rules
Some RestrictionsBoulder limits a fence, wall or hedge on a shared property line to seven feet, but abutting neighbors can jointly agree in writing to build up to twelve feet under Land Use Code…
Retaining Walls
Some RestrictionsBoulder does not require a building permit for a retaining wall under three feet, measured from the bottom of the footing to the top of the wall, unless it supports a surcharge or…
Height Limits
Some RestrictionsBoulder caps most residential fences, walls, and hedges at seven feet under Section 9-9-15(c), B.R.C. 1981, with taller heights allowed only for specific exceptions like…
Material Restrictions
Significant RestrictionsBoulder outlaws barbed wire and electrically charged fencing citywide under Section 9-9-15(d), B.R.C. 1981, with narrow carve-outs for active construction sites and for containing…
🏗️ Accessory Structures
ADU Rules
Some RestrictionsBoulder caps a detached accessory dwelling unit at 800 square feet, or 1,000 square feet if affordable, and an attached ADU at half the principal home's floor area or 1,000 square…
ADU Impact Fees
Few RestrictionsAccessory dwelling units built to the standards of Boulder Revised Code section 9-6-3 are exempt from the city's affordable housing capital facility impact fee under section…
Tiny Homes
Some RestrictionsBoulder allows site-built tiny houses as single dwelling units under Appendix BB of its Residential Building Code, BRC 10-5.5-2(jj). The catch: a tiny house must sit on a permanent…
Shed & Carport Rules
Some RestrictionsIn Boulder's RR, RE, RL, and RMX-1 residential zones, sheds and other accessory buildings sitting in the rear yard setback area are capped at a combined 500 square feet of building…
ADU Rental Restrictions
Significant RestrictionsBoulder requires a rental license before anyone occupies an accessory dwelling unit (ADU) or the paired principal dwelling as a paying tenant, bars short-term renting of either unit on…
Garage Conversions
Some RestrictionsBoulder CountyConverting a garage into living space, or into an accessory dwelling, requires a building permit and must comply with the Boulder County Land Use Code. A detached garage designed with…
💼 Home Business
Customer Traffic Restrictions
Some RestrictionsRunning a Boulder home occupation without walk-in customers is the rule: Subparagraph 9-6-3(o)(1)(A)(v) bars on-site sales except incidental retail, and allows only remote or virtual…
Signage Rules
Heavy RestrictionsHome occupations in Boulder cannot advertise from the property at all. Subparagraph 9-6-3(o)(1)(A)(iv) bars any change in the outside appearance of the dwelling or lot that shows a…
Zoning & Home Occupation Permits
Some RestrictionsA home occupation is allowed by right anywhere in Boulder if it stays inside the dwelling, is run only by residents, remains clearly secondary to the residential use, and never takes…
Home Daycare
Some RestrictionsBoulder CountyA family child care home is treated as a residential use for zoning, so it is generally allowed in unincorporated Boulder County homes, and child care is specifically exempted from the…
Cottage Food Operations
Few RestrictionsColoradoColorado lets you bake, jar and dehydrate for sale out of your own kitchen with no license, no plan review and no routine inspection. C.R.S. § 25-4-1614, the Colorado Cottage Foods…
Home Kitchen Operations
Significant RestrictionsColoradoColorado has no microenterprise home kitchen permit and no exemption that lets you cook meals to order at home for the public. The state food code closes the question from both…
🏊 Swimming Pools & Spas
Pool Permits
Some RestrictionsBoulder requires a building permit for most residential swimming pools under the City's adopted building code. Only small prefabricated above-ground pools are exempt: under Section…
Fencing & Safety Requirements
Some RestrictionsBoulder CountyA pool, spa, or hot tub in unincorporated Boulder County must be enclosed by a barrier meeting 2021 ISPSC Section 305. The barrier must be at least 48 inches high measured from the…
🗑️ Trash & Recycling
Dumpster Rules
Some RestrictionsBoulder bans placing trash dumpsters, storage trailers, or construction trailers in the public right-of-way unless the placement is approved as part of a right-of-way permit, per…
Recycling Rules
Some RestrictionsBoulder Municipal Code section 6-12-6 bars anyone but the property owner's designated hauler from taking recyclables or compostables already set out for collection, and presumes owners…
Collection Schedule
Some RestrictionsBoulder Municipal Code section 6-12-4(b) requires every hauler providing residential trash service to also collect recyclables, compostables, leaf bags, and branch bundles no less…
Yard Waste Collection
Some RestrictionsBoulder Revised Code Section 6-12-4 forces every licensed trash hauler to include yard waste in each residential pickup. Haulers must collect three bags of leaves and three bundles of…
Illegal Dumping
Some RestrictionsBoulder bans dumping trash, refuse, garbage, or rubble anywhere except a container designated for it, under B.R.C. § 5-4-13, Littering. The rule covers streets, yards, and city parks…
Mandatory Organics Recycling
Some RestrictionsBoulder requires every business to separate recyclable and compostable material out of the trash. Any business that gives employees or customers a trash container must give them a…
Bulk Item Disposal
Some RestrictionsBoulder Municipal Code section 6-12-4(b) limits free branch pickup to three bundles per collection, each no larger than three feet by six feet and tied with twine or compostable…
Pickup Rules & Schedules
Some RestrictionsBoulder requires every property owner to keep an active contract with a licensed hauler sized to the property's regular trash, recycling, and compost volume. Properties with one or…
Valet Trash Rules
Significant RestrictionsBoulder requires an operational fire permit before any building can use valet trash and recycling collection, under Fire Code § 304.1.1.1 as adopted at BRC 10-8-2(b)(12). The service…
Recycling Requirements
Some RestrictionsBoulder requires every property owner or manager to set up on-site recycling and compost collection areas at least as convenient as their trash containers. Owners must train tenants…
Bin Placement Rules
Some RestrictionsBoulder limits when residents can put trash and recycling containers at the curb. A standard cart cannot go out before 5 a.m. on collection day, while a bear-resistant or…
🚷 Public Conduct
Public Marijuana Use
Heavy RestrictionsBoulder Revised Code § 5-10-2 bans consuming marijuana anywhere the public can be: on public streets and rights-of-way, in vehicles, in buildings or on property open to the public, and…
Aggressive Panhandling
Some RestrictionsBoulder does not outlaw panhandling, but Section 5-3-7 bans aggressive begging: soliciting money or anything of value in close proximity to someone while being intimidating…
Public Urination
Significant RestrictionsBoulder makes it a Title 5 offense to urinate or defecate on the mall, in any city park, on residential property without the owner's permission, or anywhere zoned business, industrial…
Loud Party Ordinance
Some RestrictionsHosts, not just guests, are on the hook in Boulder: Section 5-3-11 bars anyone with possessory control of a property from hosting or permitting a social gathering that becomes a public…
Public Alcohol Use
Some RestrictionsBoulder bans possessing an open container of, or drinking, any liquor or fermented malt beverage in public under B.R.C. § 5-7-2, unless the location is licensed for on-site…
Outdoor Smoking Restrictions
Heavy RestrictionsBoulder bans smoking outdoors in a broad list of public places: downtown's Pearl Street Mall district, parks, open space and mountain parks land, trails and within twenty-five feet of…
Skateboarding Rules
Significant RestrictionsBoulder bans riding a skateboard, skates, coaster, or similar wheeled device anywhere on the downtown Pearl Street Mall under B.R.C. § 5-6-8. The ban is geographically narrow, it…
Jaywalking
Light RestrictionsBoulder Revised Code Section 7-5-17 bans crossing a street anywhere but a route at right angles to the curb, and bars crossing within fifty feet of a signalized intersection's…
🛴 Mobility & Curb Rules
Red-Light Cameras
Some RestrictionsBoulder Revised Code Section 7-4-74 authorizes the city manager to run red-light cameras at signalized intersections and camera radar for speed enforcement. A ticket based on camera…
Bike Lane Rules
Some RestrictionsBoulder Revised Code Section 7-4-49 bars any gas-powered motor vehicle or low-power scooter from driving in a marked bicycle lane. Lanes signed for bicycle use still remain open to…
E-Bike Classes
Some RestrictionsBoulder's code lets Class 1 and Class 2 electric assisted bicycles onto Open Space and Mountain Parks recreational paths only where the department has specifically designated and…
Shared E-Scooter Rules
Significant RestrictionsShared scooter companies can't just show up in Boulder: Section 4-34-2 requires winning a city purchasing contract and then a license, and Section 4-34-6 caps each operator's initial…
Golf Carts & Low-Speed Vehicles
Light RestrictionsColoradoColorado runs two separate regimes. A low-speed electric vehicle is a motor vehicle under C.R.S. § 42-1-102 (58)(a), so it is titled, registered, plated and driven on a licence, and…
🎪 Special Events & Permits
Parade Permits
Some RestrictionsBoulder requires a city manager permit before any parade, funeral procession, or amplified sound truck can use city streets. Section 7-2-14 of the Boulder Revised Code lets the manager…
Street Fair Rules
Some RestrictionsLarge festivals in Boulder, those expected to draw more than 15,000 attendees over multiple days and using streets, sidewalks, or parks outside normal rules, need a Special Festival…
Block Party Permits
Significant RestrictionsBoulder residents who want to close a street for a block party need a temporary street closure permit from the city manager under B.R.C. 1981 Section 2-2-11(b)(15). The manager may…
Sidewalk Dining & Cafés
Significant RestrictionsRestaurants, brewpubs, taverns, breweries, distilleries, and wineries need a revocable permit to place outdoor seating in a Boulder public right-of-way, public easement, or on private…
Park Event Permits
Significant RestrictionsAny recreational, athletic, or social event expected to draw 50 or more people in a Boulder park, parkway, recreation area, or open space needs a city manager permit under Boulder…
🌍 Environmental Rules
Erosion Control
Some RestrictionsBefore breaking ground, Boulder requires an erosion control permit under Section 11-5-6: no one may commence construction activities without one, and disturbing an acre or more…
Stormwater Management
Some RestrictionsBoulder requires an erosion control permit before any ground-disturbing construction and a city-approved final drainage report before a building permit issues. Property owners fund the…
Defensible Space
Some RestrictionsBoulder's Wildland Code requires new buildings in mapped wildland-urban interface areas to keep a modified, maintained defensible space around them, and Section 603.2.5 sets specific…
Flood Zones
Significant RestrictionsNo one may build in Boulder's one-hundred-year floodplain without a floodplain development permit under Section 9-3-6. The city maps the regulated area from FEMA's Flood Insurance Rate…
Flood Elevation Requirements
Some RestrictionsBoulder does not stop at the base flood elevation: Section 9-16-1 defines a "flood protection elevation" that adds two feet of freeboard above the one-hundred-year flood's water…
🏪 Business Licensing & Operations
Tobacco Retail License
Significant RestrictionsSelling ESDs containing nicotine or tobacco products in Boulder without a city license is illegal under Section 4-32-3: retailers must hold a two-year license from the city manager…
Pawnbrokers
Significant RestrictionsBoulder requires anyone in the pawnbroking business to hold a city license under Section 4-17-3(b), post a $5,000 surety bond, and cap loan interest at three percent per month under…
Towing Companies
Significant RestrictionsBoulder requires every towing company operating in the city to hold a valid motor carrier permit and follow strict rules for non-consent tows: free release if the owner shows up before…
Secondhand Dealers
Significant RestrictionsBoulder requires anyone operating a secondhand store, including consignment sales, to hold a city license under Section 4-17-3(a). Licensees must record every item bought or consigned…
Adult Entertainment
Significant RestrictionsBoulder CountyBoulder County bars adult entertainment establishments from operating within 1,000 feet of any church, school, daycare, or residence, limits nude entertainment to 4 p.m. to midnight…
🚪 Soliciting & Door-to-Door
Solicitor Permits
Some RestrictionsAnyone selling goods or services door-to-door in Boulder must first obtain an itinerant merchant license from the city manager under Section 4-10-3. The license costs a $50 application…
No-Knock Registry
Heavy RestrictionsBoulder Revised Code Section 4-10-2 bars anyone, other than a 501(c)(3) nonprofit, from going to a private residence to sell goods or take a prepayment order for later delivery unless…
☀️ Solar Energy
Panel Permits
Some RestrictionsInstalling solar panels in Boulder requires an electrical permit for the photovoltaic or solar thermal system under Section 4-20-8. The permit costs $69.60 for a residential system and…
HOA Restrictions
Significant RestrictionsColoradoThis is a statewide protection against private restrictions, not a local mandate: Colorado voids any deed, contract, or HOA covenant blocking a renewable energy device wherever one…
🚶 Sidewalk & Pedestrian Rules
Sidewalk Repair
Some RestrictionsBoulder places the duty to keep abutting sidewalks in good repair on the adjacent property owner, not the city. Under Section 8-2-6, B.R.C. 1981, if the city manager finds a sidewalk…
Obstruction Rules
Significant RestrictionsBoulder bars anyone from placing a building, fence, landscaping, or other obstruction in a public right-of-way, path, alley, or public easement without first getting city permission…
Encroachment Permits
Significant RestrictionsNo one may build, place, or maintain a structure, fence, landscaping, or other encroachment in a Boulder public right-of-way or public easement without city permission under Boulder…
💧 Water Use Rules
Turf Replacement Rebates
Light RestrictionsBoulder removes a permitting hurdle for water-conscious landscaping: under Section 9-9-12(d), B.R.C. 1981, a property with a prior site review or form-based code approval can convert…
Recycled Water Rules
Heavy RestrictionsBoulder prohibits any water utility customer from installing graywater treatment works or using graywater on their property under City Code Section 10-10-3. The ban, added by Ordinance…
🗺️ Zoning Overlays & Bonuses
💡 Outdoor Lighting
Light Trespass & Shielding
Some RestrictionsBoulder caps how much light can spill onto a neighbor's property: Section 9-9-16(d)(1) sets a ceiling of 0.1 footcandles at any point on a property line next to a residential zone, or…
Dark Sky Rules
Some RestrictionsBoulder's outdoor lighting code, Section 9-9-16, exists partly to keep the Milky Way visible from the city's dark sky, and it backs that purpose with hard shielding rules: most bulbs…
🪧 Sign Regulations
Digital Billboards
Heavy RestrictionsBoulder's sign code bans off-premises billboards outright: Section 9-9-21(b)(3)(H) prohibits any commercial sign that is not appurtenant and clearly incidental to the property where it…
Window Signs
Some RestrictionsBoulder exempts small window signs from a sign permit, but only within limits: Section 9-9-21(c)(1)(L) allows a non-illuminated window sign up to four square feet, no higher than…
Political Signs
Light RestrictionsBoulder treats a political sign as a noncommercial sign exempt from standard area and setback limits, but caps it at one sign, seven feet tall and thirty-two square feet, within…
Garage Sale Signs
Some RestrictionsBoulder CountyBoulder County's Land Use Code (Article 13) does not exempt garage-sale signs generally; temporary signs must meet the zoning district's size and setback rules and may never be placed…
🔧 Building Safety
Carbon Monoxide Detectors
Some RestrictionsBoulder's Property Maintenance Code requires carbon monoxide alarms in every existing dwelling and rental with a fuel-fired heater, appliance, fireplace, or attached garage. Section…
Building Inspections
Some RestrictionsBoulder's code official can enter and inspect a structure or premises to enforce the Property Maintenance Code (B.R.C. 1981 Chapter 10-2), but must present credentials to an occupant…
Green Building Code
Some RestrictionsBoulder's green building rules live in its own Energy Conservation Code at BRC 10-7-2, which adopts the 2024 City of Boulder Energy Conservation Code (CoBECC), amended for local…
Building Permits
Some RestrictionsBoulder requires a building permit for construction, alteration, and repair work under BRC 10-5-2, which adopts the 2024 International Building Code. Section 105.2 lists narrow…
Plumbing Permits
Some RestrictionsBoulder adopts the 2024 International Plumbing Code, with Appendix E, as the City of Boulder Plumbing Code under City Code Section 10-10-2(a), and administers plumbing permits through…
Electrical Permits
Some RestrictionsBoulder regulates electrical work under BRC 10-6-2, which adopts by reference whatever edition of the National Electrical Code the State of Colorado currently has in force, rather than…
Anti-Mansionization
Some RestrictionsTo stop new houses from towering over neighbors, Boulder's side yard bulk plane in Section 9-7-9, B.R.C. 1981 forces buildings to step down toward side property lines: walls can only…
Elevator Maintenance
Some RestrictionsBoulder requires elevators, dumbwaiters, and escalators to be maintained to ASME A17.1 with a current inspection certificate on display, and separately requires every public elevator…
Fire Sprinkler Requirements
Heavy RestrictionsBoulder amends IFC Section 903.2.8 to require an automatic fire sprinkler system throughout all new Group R buildings, including detached one- and two-family homes and townhomes up to…
🔑 Rental Property Rules
Rental Registration
Significant RestrictionsBoulder requires every rental property to hold a valid rental license from the city manager before anyone occupies it as a tenant. Section 10-3-2 bans renting, or advertising a unit…
Repairs & Habitability
Some RestrictionsBoulder's Property Maintenance Code, B.R.C. 1981 Chapter 10-2, requires landlords to keep rentals heated to at least 68°F and every habitable room ventilated, and applies the whole…
Eviction Notice & Process
Some RestrictionsColoradoBefore filing an eviction for nonpayment of rent, a Colorado landlord must serve a standard residential tenant with 10 days' written notice to pay or quit under Colo. Rev. Stat. §…
Just Cause Eviction
Some RestrictionsColoradoColorado HB23-1171 created a statewide for-cause eviction standard requiring landlords to cite specific statutory grounds, such as nonpayment or lease violations, before terminating…
Late Fees & Grace Periods
Heavy RestrictionsColoradoColorado caps residential late fees at the greater of $50 or 5% of the past-due rent. No late fee may be charged until rent is at least seven days late, and only if disclosed in…
Lease Termination & Notice to Vacate
Some RestrictionsColoradoTo end a no-fault tenancy, Colorado requires written notice scaled to the tenancy length under Colo. Rev. Stat. § 13-40-107: 21 days for a month-to-month tenancy, 28 days for…
Rent Control
Few RestrictionsColoradoColorado prohibits rent control statewide. Colo. Rev. Stat. § 38-12-301 declares rent control a matter of statewide concern and bars any county or municipality from enacting an…
Rent Increase Notice
Some RestrictionsColoradoFor residential tenancies with no written agreement (including month-to-month), a Colorado landlord must give at least 60 days' written notice before raising rent. Statewide, a…
Security Deposit Rules
Heavy RestrictionsColoradoColorado caps residential security deposits at two months' rent. Landlords must return the deposit, with an itemized written statement of any deductions, within 30 days of lease…
Squatter's Rights & Adverse Possession
Few RestrictionsColoradoColorado's general adverse possession period is 18 years of open, continuous, hostile possession under Colo. Rev. Stat. § 38-41-101. The period shrinks to 7 successive years where the…
🍔 Food Trucks & Mobile Vendors
Vending Zones
Significant RestrictionsBoulder confines mobile food vehicles to specific zoning contexts under Subparagraph 9-6-5(d)(1): Mixed Use, Business, Downtown or Industrial lots, certain right-of-way zones…
Sidewalk & Mobile Vending
Significant RestrictionsBoulder regulates food trucks and carts as 'mobile food vehicles' under Land Use Code Section 9-6-5(d). Operators need a license, must stay off sidewalks within crosswalk boundaries or…
Food Truck Permits
Significant RestrictionsEvery mobile food vehicle operating in Boulder needs an annual license under Subparagraph 9-6-5(d)(2). Applicants must show a valid driver's license, vehicle registration and insurance…
🏚️ Property Maintenance
Property Blight
Significant RestrictionsBoulder abates blighted or nuisance properties under B.R.C. 1981 Chapter 10-2.5. A peace officer can order an owner to abate within 24 hours for an imminent hazard or seven days for…
Snow & Sidewalk Clearing
Some RestrictionsBoulder property owners, managers, and adult occupants of detached homes, duplexes, triplexes, and fourplexes must clear public sidewalks abutting their property of snow, ice, and…
Vacant Lot Maintenance
Some RestrictionsBoulder requires the owner of any vacant lot, not just an occupied property, to keep trash, recyclables, and compostables from piling up where the public can see them, on the lot…
📐 Building Setbacks & Zoning
Structure Height Limits
Some RestrictionsBoulder sets the base height a home may reach by zoning district in the Table 7-1 schedule, but no building anywhere in the city may top the absolute 55-foot ceiling fixed by City…
Setback Rules
Some RestrictionsEvery Boulder zoning district carries its own front, side, and rear yard setback minimums in Table 7-1 of Section 9-7-1. The Agricultural (A) district requires a 25-foot front yard…
Lot Coverage Limits
Some RestrictionsBoulder CountyRather than a flat lot-coverage percentage, unincorporated Boulder County caps Residential Floor Area per parcel, generally the larger of the neighborhood median or a set…
🔍 Rental Inspections
Tenant Complaint Process
Some RestrictionsBoulder handles rental housing inspections under Appendix B of the Property Maintenance Code (B.R.C. 1981 Chapter 10-2): licenses come from Chapter 10-3, but inspections must be…
Inspection Programs
Some RestrictionsBoulder runs its rental inspection program through Appendix B of the Property Maintenance Code. Every rental unit needs a current inspection, performed and certified by a contractor…
🌱 Cannabis Regulations
Dispensary Zoning
Significant RestrictionsBoulder licenses recreational marijuana centers but confines them to zones where personal service use is allowed by right, and Section 6-16-7 of the Boulder Revised Code bars any…
Home Cultivation
Some RestrictionsColoradoColorado constitutionally permits adults to grow marijuana at home but caps the total plants per residential property regardless of how many adults live there, preempting higher local…
🛏️ Homelessness & Encampment Rules
Encampment Sanitation
Heavy RestrictionsBoulder bans unauthorized camping citywide under B.R.C. § 5-6-10: no one may camp on city-owned park, parkway, recreation, or open-space land at all, and camping on any other public or…
Sit-Lie Rules
Some RestrictionsBoulder does not ban sitting or lying on a sidewalk outright, but Section 5-3-5 makes it a violation to obstruct pedestrian passage, and it specifically treats a pedestrian having to…
🚬 Tobacco & Vaping
Flavored Tobacco Bans
Heavy RestrictionsBoulder Municipal Code section 6-4.5-2(c) makes it illegal to sell, offer for sale, or possess with intent to sell any flavored electronic smoking device containing nicotine. The ban…
Tobacco Age Restrictions
Some RestrictionsColoradoColorado prohibits the sale and furnishing of cigarettes, tobacco, and nicotine vapor products to anyone under age 21 statewide under CRS 18-13-121.
🌙 Curfew Laws
Juvenile Curfew
Some RestrictionsBoulder bars anyone under sixteen from public streets, sidewalks, or right of way between 11 p.m. and 5 a.m. under B.R.C. § 5-6-5. Officers who have probable cause of a violation must…
Park Curfew
Some RestrictionsBoulder CountyBoulder County Parks & Open Space areas are open for daytime use only, between sunrise and sunset, except certain named trail corridors and connecting spurs that are open 24 hours…
🚜 Right to Farm
Agricultural Zoning Protection
Light RestrictionsBoulder protects farming through zoning rather than a nuisance-immunity statute. Section 9-5-2 creates an Agricultural (A) district defined as land in a natural state or used for…
Farm Nuisance Protection
Some RestrictionsColoradoColorado's Right to Farm Act under CRS 35-3.5-102 shields agricultural operations from nuisance lawsuits when they follow generally accepted practices and predate complaints.
🍖 Outdoor Cooking
BBQ & Propane Rules
Some RestrictionsBoulder CountyGas and charcoal grills are legal in unincorporated Boulder County when no fire ban is in effect, but the ordinance classifies charcoal and wood-pellet grill fires as "Open Fires."…
Smoker Rules
Significant RestrictionsBoulder CountyBoulder County Parks & Open Space bans campfires outright and allows charcoal fires only in grills or fireplaces the department provides, or in a visitor's own portable grill or stove…
🚁 Drone Rules
Park Drone Restrictions
Significant RestrictionsBoulder CountyTaking off, landing, or operating a drone anywhere on Boulder County Parks & Open Space land is illegal without the Director's written permission under Rule 24(d) of Resolution No…
Commercial Drones
Heavy RestrictionsColoradoCommercial drone operations in Colorado are governed almost entirely by FAA Part 107, with limited state additions covering wildlife, critical infrastructure, and privacy that apply…
💼 Employment Preemption
Minimum Wage Preemption
Heavy RestrictionsColoradoColorado allows local governments to adopt minimum wages above the state rate under CRS 8-6-101, with statewide minimums adjusted annually for inflation.
Paid Leave Preemption
Heavy RestrictionsColoradoColorado requires paid sick leave under the Healthy Families and Workplaces Act and offers paid family medical leave through the FAMLI program funded by payroll premiums.
🔫 Firearms
Concealed Carry
Heavy RestrictionsColoradoColorado requires a concealed handgun permit issued by the county sheriff to carry a concealed firearm in public, with training and background check requirements.
Local Firearms Preemption
Heavy RestrictionsColoradoColorado repealed firearms preemption in 2021, allowing cities and counties to enact local gun regulations stricter than state law in most circumstances.
Open Carry
Some RestrictionsColoradoColorado generally permits open carry of firearms by adults without a license, though local jurisdictions may impose restrictions in specific areas after the 2021 preemption repeal.
Firearms in Vehicles
Heavy RestrictionsColoradoColorado allows adults legally able to possess a firearm to carry a handgun in a private vehicle for lawful protection without a permit under CRS 18-12-105.5.
🎰 Gambling & Gaming
Casino Zoning Districts
Heavy RestrictionsColoradoColorado's constitution confines all commercial casino gaming to the historic commercial districts of Central City, Black Hawk, and Cripple Creek: nowhere else in the state is a casino…
Charitable Bingo and Raffles
Significant RestrictionsColoradoColorado bars all lotteries and games of chance except licensed bingo and raffles run by charities. The Secretary of State issues bingo-raffle licenses only to religious, charitable…
Social Gambling Rules
Few RestrictionsColoradoColorado's criminal code doesn't reach purely social gambling. C.R.S. section 18-10-102(2)(d) carves any game, wager, or transaction incidental to a bona fide social relationship out…
Sports Betting Law
Significant RestrictionsColoradoColorado legalized sports betting statewide in 2020 under C.R.S. section 44-30-1505, but the state issues a "master license" only to holders of an existing retail gaming license -- the…
🏘️ HOA Rules
Assessment & Dues
Heavy RestrictionsColoradoUnder the Colorado Common Interest Ownership Act, C.R.S. § 38-33.3-316, an association has a statutory lien for unpaid assessments. After HB22-1137 (2022) it may foreclose only once…
Board Procedures
Some RestrictionsColoradoColorado law entitles any unit owner in a common interest community to examine and copy the association's records without stating a reason. C.R.S. § 38-33.3-317 bars boards from…
CC&R Enforcement
Heavy RestrictionsColoradoC.R.S. § 38-33.3-302 lets a Colorado association enforce covenants and 'levy reasonable fines' only 'after notice and an opportunity to be heard.' Architectural and landscaping…
Clotheslines & Energy Devices
Light RestrictionsColoradoColorado bars homeowners associations from effectively prohibiting six specific energy efficiency devices: a retractable clothesline, evaporative cooler, garage or attic fan…
Drought Landscaping Rights
Some RestrictionsColoradoColorado law limits how homeowners' associations regulate yard landscaping, but the strongest protections in C.R.S. § 38-33.3-106.5(1)(i.5) apply only to single-family detached homes…
Flag Display Rights
Light RestrictionsColoradoColorado's flag protection applies only inside common interest communities, HOAs, condos, and co-ops governed by the Colorado Common Interest Ownership Act, not to every property…
HOA Fines & Enforcement
Some RestrictionsColoradoColorado's Common Interest Ownership Act sets statewide due-process and dollar limits on how condo and homeowner associations fine owners and collect delinquent accounts, with one…
Lien & Foreclosure Limits
Light RestrictionsColoradoA Colorado association's assessment lien attaches automatically the moment the declaration is recorded, but foreclosing it has become the hardest remedy in the association's toolkit…
⚖️ Know Your Rights
DUI Checkpoint Legality
Some RestrictionsColoradoColorado never passed a law creating sobriety checkpoints. The word "roadblock" does not appear anywhere in the Colorado Revised Statutes, and "checkpoint" appears in the statutory…
Recording Police
Few RestrictionsColoradoColorado is one of the few states that put the right to film officers into its own sentence of statute. C.R.S. § 16-3-311(1) says a person "has the right to lawfully record any…
Stop & Identify Laws
Light RestrictionsColoradoColorado writes the demand into statute and then declines to punish the refusal. C.R.S. § 16-3-103 lets a peace officer who reasonably suspects you of a crime stop you and require your…
Vehicle Search & Consent
Light RestrictionsColoradoColorado is one of a small group of states that requires the advisement out loud. Under C.R.S. § 16-3-310, before a peace officer may conduct a consensual search of a vehicle, of a…
🛍️ Single-Use Items
Plastic Bag Rules
Some RestrictionsColoradoColorado banned single-use plastic carryout bags and polystyrene foam containers statewide under the Plastic Pollution Reduction Act, fully effective in 2024.
Polystyrene Foam Rules
Some RestrictionsColoradoColorado prohibits retail food establishments from using expanded polystyrene foam containers for ready-to-eat food and beverages under the Plastic Pollution Reduction Act.
🚗 Vehicle Equipment Laws
Underglow & Auxiliary Lighting
Some RestrictionsColoradoColorado permits four categories of extra forward lighting and caps each at two lamps: spot lamps, fog lamps, auxiliary passing lamps and auxiliary driving lamps, under C.R.S. §…
Dash Cam & Windshield Mounting
Light RestrictionsColoradoColorado has no statute naming dash cameras and no list of permitted windshield attachments, so two general rules decide where one may go. Section 42-4-201 (4) requires the driver’s…
Lane Splitting & Filtering
Light RestrictionsColoradoRiding between lanes of traffic is illegal in Colorado. C.R.S. § 42-4-1503 (3)(a) forbids driving a motorcycle or autocycle between lanes of traffic or between adjacent lines or rows…
Plate Covers & Obstruction
Significant RestrictionsColoradoColorado writes its plate-cover ban around machine readability. C.R.S. § 42-3-202 (2)(b) makes it unlawful to operate a motor vehicle with an affixed device or substance that causes…
Radar Detector Rules
Few RestrictionsColoradoA passenger-car driver in Colorado may use a radar detector. Nothing in title 42 regulates one: the word "detector" does not appear anywhere in the Vehicles and Traffic title. What…
Studded Tire & Chain Rules
Some RestrictionsColoradoColorado puts no calendar on studded tires. C.R.S. § 42-4-228 (3) lets single-tired passenger vehicles, and other single-tired vehicles rated up to and including three-fourths of a…
Window Tint Limits
Some RestrictionsColoradoColorado sets a single light transmittance figure for every window except the windshield. Under C.R.S. § 42-4-227 (1)(a)(I) no window other than the windshield may allow less than…