What Boston Regulates: A Complete Ordinance Overview

As one of the larger cities in Massachusetts, Boston has a substantial set of local ordinances that govern everything from noise levels to what you can build in your backyard. With about 676000 residents, the city maintains 202 distinct rules across 42 categories. This guide gives you the big picture.

Swimming Pools & Spas

Pool Permits: Boston requires a building permit and electrical permit from ISD for any in-ground pool or above-ground pool over 24 inches deep. MGL Ch.

Also covered: Hot Tub Rules (moderate), Above-Ground Pools (strict), Safety Rules (strict). See the full swimming pools & spas guide for Boston for details.

Trash & Recycling

Bulk Item Disposal: Boston provides free bulk item pickup for residential properties through the Department of Public Works. Residents must schedule pickup through 311.

Also covered: Bin Placement Rules (moderate), Pickup Rules & Schedules (moderate), Recycling Requirements (moderate). See the full trash & recycling guide for Boston for details.

Fence Regulations

Retaining Walls: Boston requires a building permit for any retaining wall over 4 feet tall measured from footing to top, and engineered drawings for walls over 4 feet or walls supporting a surcharge..

Also covered: Pool Barriers (strict), Neighbor Fence Rules (moderate), Permit Requirements (moderate). See the full fence regulations guide for Boston for details.

HOA Rules

Assessment & Dues: Boston condo assessments are governed by MGL Ch. 183A Sections 6 and 10.

Also covered: Board Procedures (moderate), Architectural Review (strict). See the full hoa rules guide for Boston for details.

Parking Rules

Driveway Rules: Boston driveways cannot block the sidewalk, and parking across a city sidewalk is a tow-eligible violation under City Code Ch. 16-12.

Also covered: EV Charging (moderate), Overnight Parking (strict), RV & Boat Parking (strict). See the full parking rules guide for Boston for details.

Noise Ordinances

Outdoor Music: Outdoor amplified music in Boston requires an APCC noise variance and a Special Event permit. Unpermitted outdoor events are limited to the plainly audible 50-foot standard and must stop by 11 PM..

Also covered: Industrial Noise (strict), Leaf Blower Rules (moderate), Amplified Music & Events (strict). See the full noise ordinances guide for Boston for details.

Short-Term Rentals

Primary-Residence-Only Rule: Boston Ordinance 12-9.1 (2018, revised 2019) restricts short-term rentals to a host's primary residence. Investor-owned, non-owner-occupied units cannot legally operate as STRs anywhere in Boston regardless of zoning..

Also covered: Occupancy Limits (strict), Parking Rules (strict), Host Presence Rule (strict). See the full short-term rentals guide for Boston for details.

Landscaping Rules

Grass Height Limits: Boston property owners must keep grass and weeds below 10 inches under City Code Ch. 16 and the Public Health Commission sanitary code.

Also covered: Water Restrictions (permissive), Artificial Turf (moderate), Native Plants (permissive). See the full landscaping rules guide for Boston for details.

Fire Regulations

Propane Storage: Storage of liquefied petroleum gas in Boston is regulated under 527 CMR 1.00 (Massachusetts Comprehensive Fire Safety Code) and Boston Code Ch. 11-2.1, with BFD permits required for tanks above household quantities..

Also covered: Wildfire Zones (permissive), Outdoor Burning (strict), Brush Clearance (permissive). See the full fire regulations guide for Boston for details.

Tree Protection

Heritage & Protected Trees: Boston protects notable and heritage trees through the Parks Department's urban forestry program and the Public Shade Tree Law (MGL c.87). While Boston does not have a formal heritage tree registry, exceptionally large and historically significant public trees receive heightened protection.

Also covered: Urban Forest Equity (moderate), Tree Replacement Requirements (moderate), Tree Removal Permits (strict). See the full tree protection guide for Boston for details.

Garage & Yard Sales

Garage Sale Permits: Boston does not require a permit for residential garage sales or yard sales. Sales must be conducted on private property and should not create public nuisances.

Also covered: Time Restrictions (permissive), Frequency Limits (permissive). See the full garage & yard sales guide for Boston for details.

Property Maintenance

Snow & Sidewalk Clearing: Boston property owners must clear snow from sidewalks abutting their property within 3 hours of snowfall ending during daytime, or by 3 hours after sunrise for overnight snow. Sidewalks must be cleared to a 42-inch path.

Also covered: Garage Sale Rules (permissive), Property Blight (strict), Trash Bin Storage (moderate). See the full property maintenance guide for Boston for details.

Environmental Rules

Climate Emergency Mobilization: Boston BERDO 2.0 (Ord. 7-2.2, amended 2021) requires large buildings to report annual energy use and meet declining greenhouse gas emission caps reaching net-zero by 2050..

Also covered: Grading & Drainage (moderate), Sustainable Procurement (moderate), Cool Roof Requirements (moderate). See the full environmental rules guide for Boston for details.

Sign Regulations

Garage Sale Signs: Garage sale signs in Boston are subject to the same restrictions as other temporary signs. Signs may not be placed on public property, utility poles, or trees.

Also covered: Political Signs (moderate), Holiday Displays (permissive). See the full sign regulations guide for Boston for details.

Accessory Structures

Tiny Homes: Boston does not recognize tiny houses on wheels as legal dwellings. Tiny homes on foundations must meet full 780 CMR building code and minimum zoning unit size.

Also covered: Carport Rules (moderate), ADU Impact Fees (permissive), ADU Permits (moderate). See the full accessory structures guide for Boston for details.

Home Business

Customer Traffic Restrictions: Boston home occupations cannot generate significant customer visits or on-street parking demand. Zoning limits visits to incidental foot traffic with no retail sales on-site..

Also covered: Home Daycare (strict), Signage Rules (strict), Cottage Food Operations (moderate). See the full home business guide for Boston for details.

Animal Ordinances

Animal Hoarding: Boston Animal Control and the MSPCA investigate hoarding cases under MGL Ch. 272 §77, which criminalizes cruelty when owners keep more animals than they can house, feed, or maintain in sanitary conditions..

Also covered: Cat Rules (moderate), Mandatory Spay/Neuter (moderate), Microchipping (permissive). See the full animal ordinances guide for Boston for details.

Building Safety

Pest Control: Under the Boston Sanitary Code (BPHC Ch. II) and 105 CMR 410, every property owner must keep premises free of rodents, insects, and other pests through extermination, exclusion, and removal of food sources..

Also covered: Elevator Maintenance (strict), Fire Sprinkler Requirements (strict), Scaffold & Sidewalk Shed (strict). See the full building safety guide for Boston for details.

Rental Property Rules

Security Deposit Rules: MGL Ch. 186 §15B caps Boston security deposits at one month's rent, requires interest-bearing escrow in a Massachusetts bank, mandates written receipts, and triggers triple damages if a landlord commingles funds or fails to return deposit within 30 days of tenancy end..

Also covered: No-Fault Evictions (moderate), Section 8 Voucher Acceptance (moderate), Tenant Anti-Harassment (strict). See the full rental property rules guide for Boston for details.

Homelessness & Encampment Rules

Sit-Lie Rules: Boston has no general sit-lie ban. Enforcement against unhoused individuals occupying sidewalks proceeds under Boston Code Ch.

Also covered: Encampment Sanitation (moderate). See the full homelessness & encampment rules guide for Boston for details.

Public Health Rules

Rodent Control: Boston's Rodent Action Plan and the City Sanitary Code require property owners, builders, and food businesses to prevent rat harborage, store trash properly, and obtain rodent inspections before major construction or demolition work begins..

Also covered: Restaurant Grade Cards (moderate), Syringe Disposal (moderate), Bed-Bug Rules (moderate). See the full public health rules guide for Boston for details.

Cannabis Regulations

Buffer Zones: Boston Zoning Code Article 88 requires cannabis establishments to sit at least 500 feet from any K through 12 school, measured property line to property line, matching MGL Chapter 94G and Cannabis Control Commission rules..

Also covered: Social Equity Licensing (permissive), Cannabis Delivery Rules (moderate), Personal Cultivation Limits (permissive). See the full cannabis regulations guide for Boston for details.

Tobacco & Vaping

Tobacco Age Restrictions: Boston enforces age 21 minimum for tobacco and vape sales under federal T21, Massachusetts state law (2018), and Boston Public Health Commission regulations. Massachusetts banned all flavored tobacco statewide in 2020 (Chapter 133), and Boston requires a city tobacco retailer permit.

Also covered: Vape Retail Rules (strict), Flavored Tobacco Bans (strict). See the full tobacco & vaping guide for Boston for details.

Single-Use Items

Plastic Bag Rules: Boston banned thin single-use plastic carryout bags effective December 14, 2018, phased in by store size. Retailers must offer compostable plastic (BPI-certified), recyclable paper, or reusable bags and charge at least 5 cents per bag.

Also covered: Polystyrene Foam Rules (strict), Utensils-On-Request (moderate), Plastic Straw Rules (moderate). See the full single-use items guide for Boston for details.

Water Use Rules

Leak Reporting Duty: Boston Water and Sewer Commission requires customers to report visible leaks promptly and offers leak adjustment credits on water bills when verified repairs follow within sixty days..

Also covered: Lawn Watering Restrictions (moderate). See the full water use rules guide for Boston for details.

Local Taxes & Fees

Affordable Housing Linkage Fee: Boston Zoning Code §80B-7 imposes a Development Impact Project linkage fee on large commercial projects, funding affordable housing and job training across the city..

Also covered: Parking Tax (permissive). See the full local taxes & fees guide for Boston for details.

Zoning Overlays & Bonuses

Density Bonus Law: Boston's Inclusionary Development Policy requires market-rate residential projects of ten-plus units to set aside 13-20% as income-restricted affordable housing or pay in-lieu fees to the IDP Fund..

Also covered: Specific Plans Overview (moderate), Transit-Oriented Communities (TOC) (moderate). See the full zoning overlays & bonuses guide for Boston for details.

Mobility & Curb Rules

Bike Lane Rules: Boston Transportation Department implements Vision Zero through a connected network of separated and protected bike lanes targeting zero traffic fatalities under the 2030 Bike Network Plan..

Also covered: Shared E-Scooter Rules (moderate). See the full mobility & curb rules guide for Boston for details.

Hotels & Lodging

Transient Occupancy Tax: Boston combines state, city, and convention center surcharges into a 14.45% room occupancy excise on hotels, motels, B&Bs, and qualifying short-term rentals operating in the city..

Also covered: Hotel Living Wage (moderate), Hotel Worker Retention (moderate). See the full hotels & lodging guide for Boston for details.

Employment Preemption

Paid Leave Preemption: Boston employees are covered by two state-level paid leave regimes: Paid Family and Medical Leave under MGL Ch. 175M and Earned Sick Time under MGL Ch.

Also covered: Minimum Wage Preemption (moderate), Worker Scheduling Preemption (permissive). See the full employment preemption guide for Boston for details.

Immigration Policy

Sanctuary Policy Preemption: The Boston Trust Act, enacted in 2014 and strengthened in 2019, restricts Boston Police from using city resources to enforce federal civil immigration law and from honoring most ICE detainer requests absent a judicial warrant..

Also covered: E-Verify Mandates (permissive). See the full immigration policy guide for Boston for details.

Business Licensing & Operations

Tobacco Retail License: All retailers selling tobacco, e-cigarettes, or nicotine products in Boston must hold a permit from the Boston Public Health Commission and follow flavor restrictions, age 21 sales limits, and capped citywide license counts..

Also covered: Secondhand Dealers (moderate), Massage Establishments (moderate). See the full business licensing & operations guide for Boston for details.

Public Conduct

Public Alcohol Use: Drinking alcohol on public streets, sidewalks, parks, beaches, and parking lots in Boston is prohibited under Boston Code Ch. 16-12 and is enforced through fines and possible arrest by the Boston Police..

Also covered: Public Marijuana Use (moderate), Outdoor Smoking Restrictions (moderate). See the full public conduct guide for Boston for details.

Soliciting & Door-to-Door

No-Knock Registry: Boston residents may post no-soliciting signs to prevent unwanted commercial solicitation. Licensed solicitors are expected to respect these signs.

Also covered: Solicitor Permits (moderate). See the full soliciting & door-to-door guide for Boston for details.

Solar Energy

HOA Restrictions: Massachusetts law (MGL c.40A §9B) protects solar access rights and limits the ability of municipalities to restrict solar installations. While there is no explicit state solar access statute preempting HOA restrictions, Boston condominium associations face practical limits in prohibiting solar installations due to state zoning protections and net metering rights..

Also covered: Panel Permits (moderate). See the full solar energy guide for Boston for details.

Outdoor Cooking

BBQ & Propane Rules: Boston's Fire Prevention Code (527 CMR 1.00, Massachusetts Comprehensive Fire Safety Code) prohibits the use or storage of LP-gas grills and propane cylinders larger than 1 pound on balconies, porches, or within 10 feet of combustible construction on multi-family residential buildings. The Boston Fire Department enforces these restrictions, and many condo associations and rental landlords additionally ban grills outright..

Also covered: Outdoor Kitchen Permits (moderate), Smoker Rules (strict). See the full outdoor cooking guide for Boston for details.

Holiday Decorations

Holiday Light Rules: Boston does not have a dedicated ordinance regulating holiday lighting on private residential property. General nuisance, electrical safety, and historic district rules apply.

Also covered: Inflatable Display Rules (permissive), Lawn Ornament Rules (permissive). See the full holiday decorations guide for Boston for details.

Food Trucks & Mobile Vendors

Food Truck Permits: Food trucks in Boston require a Mobile Food Vendor License from the city's Licensing Board and a permit from the Inspectional Services Department. Operators must pass a health inspection, obtain a fire safety inspection, and have commissary agreements.

Also covered: Vending Zones (strict). See the full food trucks & mobile vendors guide for Boston for details.

Outdoor Lighting

Dark Sky Rules: Boston does not have a comprehensive dark sky ordinance. Outdoor lighting is regulated through the zoning code for commercial and development projects, which may require full cutoff fixtures and shielded lighting.

Also covered: Light Trespass (moderate). See the full outdoor lighting guide for Boston for details.

Curfew Laws

Juvenile Curfew: Boston has a juvenile curfew under the municipal code. Minors under 17 are prohibited from being in public places between 11 PM and 6 AM on school nights (Sunday–Thursday) and midnight to 6 AM on weekends (Friday–Saturday) without a parent or guardian.

Also covered: Park Curfew (moderate). See the full curfew laws guide for Boston for details.

Drone Rules

Commercial Drones: Commercial drone operations in Boston require an FAA Part 107 Remote Pilot Certificate and LAANC authorization for controlled airspace near Logan Airport. Additional permits may be needed from the city for operations over public property.

Also covered: Recreational Drones (moderate). See the full drone rules guide for Boston for details.

Building Setbacks & Zoning

Setback Rules: Boston's Zoning Code establishes setback requirements that vary by zoning district. Residential districts typically require front yard setbacks of 15-25 feet and side yard setbacks of 5-10 feet.

Also covered: Structure Height Limits (strict), Lot Coverage Limits (moderate). See the full building setbacks & zoning guide for Boston for details.

What to Do With This Information

If you are moving to Boston, buying a home, or starting a project, use this as a starting point. Each category links to detailed pages with the full text, penalties, and FAQs. Verify anything time-sensitive with Boston's city hall or code enforcement office.