Building Safety in Boulder, CO (2026)
9 verified building safety rules for Boulder, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
Elevator Maintenance
Boulder 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 to be licensed under B.R.C. 1981 Chapter 4-22.
Boulder Elevator Maintenance and Licensing
Some RestrictionsBoulder Property Maintenance Code § 606.1 (B.R.C. 1981 Ch. 10-2)
606.1 General. Elevators, dumbwaiters and escalators shall be maintained in compliance with ASME A17.1. The most current certificate of inspection shall be on display at all times within the elevator or attached to the escalator or dumbwaiter, be available for public inspection in the office of the building operator or be posted in a publicly conspicuous location approved by the State of Colora...
Fire Sprinkler Requirements
Boulder 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 three stories, under City Code Section 10-8-2(b)(33). The fire code official enforces the rule under Section 113.1, with escalating civil penalties for violations.
Boulder's Residential Fire Sprinkler Mandate
Heavy RestrictionsBoulder Revised Code § 10-8-2(b)(33) (IFC § 903.2.8)
(33)Section 903.2.8, Group R, is amended by the addition of the following:(a)Detached one- and two-family dwellings and multiple single-family dwellings (townhomes) not more than three stories above grade plane in height with a separate means of egress and their accessory structure shall comply with the fire sprinkler system requirements of the City of Boulder Residential Building Code.(b)An au...
Anti-Mansionization
To 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 rise twelve feet before the building must angle back at 45 degrees, in the RR-1, RR-2, RE, RL-1, and RMX-1 residential zones.
Boulder's Side Yard Bulk Plane Curbs Mansionization
Some RestrictionsSec. 9-7-9, B.R.C. 1981
(a)Purpose: Buildings with tall side walls may impact privacy, views or visual access to the sky on neighboring properties. The purpose of this side yard bulk plane standard is to ensure that buildings step down towards neighboring properties in order to enhance privacy, preserve some views and visual access to the sky for lots or parcels that are adjacent to new development. ... (c)Measurement...
Green Building Code
Boulder'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 conditions. New construction must include electric vehicle charging under amended Section C405.13, and projects seeking HVAC efficiency credits under C406.2.2 must meet specific SEER, EER, and AFUE benchmarks referenced by the code's tables.
Boulder Energy Conservation Code Requirements
Some RestrictionsBRC § 10-7-2(a)-(b), § C405.13
10-7-2. - Energy Conservation Code. (a)Council adopts by reference the 2024 City of Boulder Energy Conservation Code published by the International Code Council which shall have the same force and effect as though fully set forth in the Boulder Revised Code, 1981, except as specifically amended by the provisions of this chapter. This code shall also be known as the City of Boulder Energy Conser...
Carbon Monoxide Detectors
Boulder'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 705.4 sets a 15-foot placement rule near each sleeping area, a 2009 deadline for existing rentals, and an owner duty to replace failed alarms. Rental inspectors verify compliance before every license issuance or renewal.
Boulder Requires Carbon Monoxide Alarms in Rentals
Some RestrictionsProperty Maintenance Code § 705.4, Chapter 10-2, B.R.C. 1981
705.4 Carbon Monoxide Alarms. Carbon monoxide alarms shall be installed in existing dwellings and rented single- and multi-family dwellings that have fuel fired heaters, appliances, or fireplaces, or attached garages based on the following: 1.Alarms must be installed within 15' of the entrance to each sleeping area and must be wired to AC power, connected to an electrical panel, plugged into an...
Building Permits
Boulder 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 exemptions, small accessory buildings, low fences, shallow retaining walls, minor decks, but everything else needs a permit from Planning & Development Services before work begins, and an exemption never excuses violating any other part of the code.
When Boulder Requires a Building Permit
Some RestrictionsBRC § 10-5-2(j), IBC § 105.2
105.2 Work exempt from permit. Exemptions from the building permit requirements of this code do not grant authorization for any work to be done in violation of the requirements of this code or any other laws or ordinances of the city. Building permits shall not be required for the following: General:1.One-story detached nonconditioned buildings accessory to a residential structure and not more ...
Electrical Permits
Boulder 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 naming a fixed year in the city code. Any installation, alteration, or repair of electrical conductors or equipment in a structure is regulated under this chapter, administered through the same Chapter 1 provisions as the city's building code.
Boulder Electrical Code and NEC Adoption
Some RestrictionsBRC § 10-6-1, § 10-6-2(a)
10-6-1. - Legislative Intent. The purpose of this chapter is to protect the public health and safety by regulating the installation, alteration, or repair of or addition to electrical conductors or equipment installed within or on any structure in the city. The city council hereby adopts the current National Electrical Code, as currently adopted by the State of Colorado or as is from time to ti...
Plumbing Permits
Boulder 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 the same Chapter 1 permitting rules used for the building code. Local amendments raise water test pressure, delete the graywater and nonpotable water chapters, and set flow-rate limits on fixtures.
Boulder's Adopted Plumbing Code Rule
Some RestrictionsBoulder Revised Code § 10-10-2(a)-(b)
(a)The 2024 edition of the International Plumbing Code, published by the International Code Council, including Appendix E, "Sizing of Water Piping System," is hereby adopted by reference as the City of Boulder Plumbing Code or plumbing code, and has the same force and effect as though fully set forth in this chapter, except as specifically amended by the provisions of this chapter.(b)Except for...
Building Inspections
Boulder'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 or make a reasonable effort to locate the owner first.
Boulder Code Official Inspection Authority
Some RestrictionsBoulder Property Maintenance Code § 105.3 (B.R.C. 1981 Ch. 10-2)
Where it is necessary to make an inspection to enforce the provisions of this code, or whenever the code official has reasonable cause to believe that there exists in a structure or upon a premises a condition in violation of this code, the code official is authorized to enter the structure or premises at reasonable times to inspect or perform the duties imposed by this code and as necessary to...
Looking for Boulder County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Boulder city rules.
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