All Roll Calls
Yes: 260 • No: 111
ColoradoSB25-0022025 Regular SessionSenate
Regional Building Codes for Factory-Built Structures
Sponsored By: Andrew Boesenecker (Democratic), Jeff Bridges (Democratic), Rebekah Stewart (Democratic), Tony Exum (Democratic)
Signed by Governor
Housing
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Bill Overview
Analyzed Economic Effects
8 provisions identified: 2 benefits, 0 costs, 6 mixed.
Local home installation rules gain flexibility
The law removes a ban on local installation standards that differ from, or are weaker than, Division standards. It also removes a separate clause expressly preserving enforcement of some local installation rules for approved structures. Where otherwise allowed by law, local climate-related safety standards remain permitted for mobile and modular homes; this permission no longer names tiny homes. The Department of Local Affairs must create model safety codes for factory-built structures, including accessory dwelling units. Local adoption of these models is optional; they address risks such as snow, wind, and wildfire.
Fewer local barriers to factory-built homes
Counties and towns cannot use development rules to exclude state-certified factory-built structures or federally certified manufactured homes. Factory-built homes cannot face stricter development standards than site-built homes in the same residential zones. This covers size, floor space, foundations, setbacks, and side yards. Local construction and installation rules for factory-built structures cannot be stricter than rules for other construction. Unique local safety codes cannot apply to these certified structures; state and federal requirements still apply, and general land-use rules remain allowed.
Home approvals last, but repairs face rules
A factory-built structure's state approval mark creates a presumption that work in its approved plans meets applicable codes. The Division of Housing makes the final decision about what the approval covers. The mark does not expire unless design or construction changes from the approved plans. Later repairs and changes must follow applicable agency rules, including electrical, plumbing, and professional licensing laws. Separate site work outside the approved installation plans follows local rules, including foundations and connected site-built garages or decks.
Businesses can register as home installers
Authorized businesses, as well as individuals, can register to install factory-built structures. Registration lasts one year, cannot be transferred, and carries a fee of no more than $250. Applications must use the Division's form and include a declaration signed under penalty of perjury. Registered installers must report application information changes in writing within 30 days.
Buyer safeguards and home business oversight
The State Housing Board must set registration and accountability rules for manufacturers, installers, sellers, and contractors doing covered site work. The rules must also address education, training, and certification. Local governments certified by the Division of Housing can inspect structures on its behalf. The Division can hire vetted outside plan reviewers; rules must require audits of reviewers, inspectors, and seller contracts. Rules must also protect buyer down payments held by sellers or manufacturers.
Home utility work changes oversight
Once required housing rules are adopted, state electrical, plumbing, and fire-suppression authorities lose oversight of factory-built construction and installation work. The advisory committee must create electrical and plumbing compliance processes for that work. External-utility work outside a registered installer's required tasks needs licensed electricians or plumbers working under registered trade contractors. Service-side gas piping needs a qualified gas piping installer. Electrical and plumbing inspections require licensed inspectors unless a registered installer is authorized to inspect.
Regional building rules for factory-built homes
The State Housing Board must adopt regional building rules by July 1, 2026, using advisory committee recommendations. Rules must account for local climate, geography, and fire safety, including wind, snow, wildfire, temperature zones, radon, and sprinklers. Construction and installation must meet the strictest requirements among the regional codes. Board rules replace conflicting local laws unless the local government adopts the board's rules.
State money shifts to building oversight
The law directs a $600,000 transfer from the Innovative Housing Incentive Program Fund to the Building Regulation Fund on July 1, 2025. It provides $277,264 from the Building Regulation Fund for Division of Housing program administration in state fiscal year 2025–26. That funding assumes one additional full-time position. The Building Regulation Fund is also exempt from state cash-fund balance limits. These funds support oversight, not direct household payments.
Sponsors & Cosponsors
Sponsors
Andrew Boesenecker
Democratic • House
Jeff Bridges
Democratic • Senate
Rebekah Stewart
Democratic • House
Tony Exum
Democratic • Senate
Cosponsors
Amy Paschal
Democratic • House
Gretchen Rydin
Democratic • House
Kyle Brown
Democratic • House
Lesley Smith
Democratic • House
Meg Froelich
Democratic • House
Mandy Lindsay
Democratic • House
Naquetta Ricks
Democratic • House
Cathy Kipp
Democratic • Senate
Dafna Michaelson Jenet
Democratic • Senate
Sen. F. Winter
Affiliation unavailable
Julie Gonzales
Democratic • Senate
Katie Wallace
Democratic • Senate
Lisa Cutter
Democratic • Senate
Nick Hinrichsen
Democratic • Senate
Roll Call Votes
Senate vote • 4/23/2025
House amendments: Repass
Yes: 24 • No: 11
Senate vote • 4/22/2025
House amendments: Repass
Yes: 26 • No: 9
Senate vote • 4/22/2025
House amendments: Concur
Yes: 35 • No: 0
House vote • 4/21/2025
Third reading: Bill
Yes: 40 • No: 23
House vote • 4/21/2025
Third reading: Amd (l.017)
Yes: 40 • No: 23
House vote • 4/21/2025
Third reading: Perm
Yes: 43 • No: 20
House vote • 4/17/2025
Refer Senate Bill 25-002, as amended, to the Committee of the Whole.
Yes: 7 • No: 4
House vote • 4/8/2025
Refer Senate Bill 25-002, as amended, to the Committee on Appropriations.
Yes: 10 • No: 3
Senate vote • 3/31/2025
Third reading: Bill
Yes: 23 • No: 11
Senate vote • 3/26/2025
Refer Senate Bill 25-002, as amended, to the Committee of the Whole.
Yes: 4 • No: 3
Senate vote • 2/6/2025
Refer Senate Bill 25-002, as amended, to the Committee on Appropriations.
Yes: 4 • No: 2
Senate vote • 2/6/2025
Adopt amendment L.001
Yes: 4 • No: 2
Actions Timeline
Governor Signed
5/8/2025HouseSigned by the President of the Senate
5/6/2025SenateSent to the Governor
5/6/2025HouseSigned by the Speaker of the House
5/6/2025HouseSenate Considered House Amendments - Result was to Concur - Repass
4/23/2025SenateHouse Third Reading Passed with Amendments - Floor
4/21/2025HouseHouse Committee on Appropriations Refer Amended to House Committee of the Whole
4/17/2025HouseHouse Second Reading Special Order - Passed with Amendments - Committee, Floor
4/17/2025HouseHouse Committee on Transportation, Housing & Local Government Refer Amended to Appropriations
4/8/2025HouseSenate Third Reading Passed - No Amendments
3/31/2025SenateIntroduced In House - Assigned to Transportation, Housing & Local Government
3/31/2025HouseSenate Second Reading Passed with Amendments - Committee, Floor
3/28/2025SenateSenate Committee on Appropriations Refer Amended to Senate Committee of the Whole
3/26/2025SenateSenate Committee on Local Government & Housing Refer Amended to Appropriations
2/6/2025SenateIntroduced In Senate - Assigned to Local Government & Housing
1/8/2025Senate
Bill Text
Engrossed
Final Act
Introduced
Reengrossed
Rerevised
Revised
Signed Act