Fort Collins building permits
Department contacts, adopted codes, permit types, fees, and gotchas for Fort Collins, Colorado.
Last verified 2026-08-13 · Source · Embed this page’s badge · Version history
Building department
- Address
- 281 N. College Ave., Fort Collins, CO 80524
- Phone
- 970-416-2740
- Office hours
- Monday–Friday, 8 a.m. to 5 p.m.
- Website
- Official site
- Permit portal
- Apply online at Fort Collins's portal
Inspection guide
See how inspections work in Fort Collins — sequence, scheduling & re-inspection fees.
Codes adopted
Colorado has no statewide-mandated building code edition. Under the Colorado Constitution's home-rule provisions (art. XX, home rule for municipalities since 1902; home rule for counties since 1970), building codes and zoning are an enumerated home-rule charter power, so cities and counties adopt and amend their own construction codes independently — predominantly the I-Codes, with editions and local amendments varying by jurisdiction. The one statewide floor is for energy: HB22-1362 (2022) created the Energy Code Board (jointly appointed by the Colorado Energy Office and the Department of Local Affairs) and requires that, on or after July 1, 2023 and before July 1, 2026, any municipality or county that adopts or updates a building code must adopt and enforce an energy code achieving performance equivalent to or better than the 2021 IECC together with the board's Model Electric Ready and Solar Ready Code (which includes electric-ready, EV-ready, and solar-ready provisions); from July 1, 2026 onward the floor shifts to the board's Model Low Energy and Carbon Code or an equivalent. Electrical and plumbing permitting defaults to the Colorado State Electrical Board and State Plumbing Board (within DORA's Division of Professions and Occupations) — the state issues permits and inspects statewide except in counties/jurisdictions that operate their own certified Electrical or Plumbing Inspection Program, in which case the local program has authority instead. Always confirm the currently adopted code edition, local amendments, and inspection authority (state board vs. local program) with the specific jurisdiction before submitting plans.
- 2024 International Building Code (IBC) with 2024 Fort Collins IBC Amendments — current as of April 1, 2026 (permits submitted on/after April 1, 2026 use these; 2021 IBC available for reference until Oct. 1, 2026)
- 2024 International Residential Code (IRC) with 2024 Fort Collins IRC Amendments — current as of April 1, 2026
- 2024 International Energy Code (IECC) with 2024 Fort Collins IECC Amendments — current as of April 1, 2026; Fort Collins amendments add all-electric building provisions, solar-ready zone requirements, heat-pump and demand-response requirements (see localAmendments)
- 2024 International Mechanical Code (IMC) with 2024 Fort Collins IMC Amendments
- 2024 International Fuel and Gas Code (IFGC) with 2024 Fort Collins IFGC Amendments
- 2024 International Plumbing Code (IPC) with 2024 Fort Collins IPC Amendments (Fort Collins uses the IPC, not the UPC)
- 2023 National Electrical Code (NEC), effective Aug. 1, 2023 — adopted directly, matching the State of Colorado's adopted electrical code
- 2024 International Existing Building Code (IEBC) with 2024 Fort Collins IEBC Amendments
- 2024 International Property Maintenance Code (IPMC) with 2024 Fort Collins IPMC Amendments
- 2024 International Swimming Pool and Spa Code (ISPSC) with 2024 Fort Collins ISPSC Amendments
- 2025 Colorado Wildfire Resiliency Code (adopted statewide, current as of April 1, 2026)
- 2017 ICC A117.1 — Accessibility, plus Colorado Accessibility State Law (CRS 9-5)
- Poudre Fire Authority Fire Code — see PFA's Fire Code webpage for current adopted fire code (separate department, not administered by Building Services)
Permit types & fees
Residential Building Permit (New Construction)
Required for new single-family homes, townhomes, and duplex/ADU new construction in Fort Collins. Reviewed against the 2024 IRC with 2024 Fort Collins Amendments and the 2024 IECC with Fort Collins energy/green amendments. Fee is calculated from the Fee Schedules occupancy-based rate table (R-3 = $0.65/sq ft), split 35% Plan Check / 65% Building Permit.
Residential Addition / Remodel Permit
Required for residential additions (garage expansions, pop-the-tops, sunrooms, enclosing a covered patio) and remodels (kitchen/bath alterations, basement finishes, layout changes) in Fort Collins. Additions use the same occupancy-based Fee Schedules rate table as new construction; interior remodels use a valuation-based tiered fee table.
Electrical Permit
Required for outlets, panels, wiring, repairs, lighting, EV chargers, and other electrical work in Fort Collins. The CITY of Fort Collins Building Services issues and reviews electrical permits (not a Colorado state board directly) — but individuals performing electrical work must hold a State of Colorado electrical license, and Master Electricians must additionally register with the City of Fort Collins Contractor Licensing office to work under permits in city limits. Governed by the 2023 NEC (effective Aug. 1, 2023), matching the state-adopted electrical code.
Plumbing Permit
Required for water, sewer, gas piping and valve work in Fort Collins. The CITY of Fort Collins Building Services issues and reviews plumbing permits directly — individuals performing plumbing work must hold a State of Colorado plumbing license, and Master Plumbers must additionally register with the City of Fort Collins. Governed by the 2024 International Plumbing Code (IPC) with Fort Collins Amendments (Fort Collins uses the IPC, unlike Reno's UPC).
Mechanical / HVAC Permit
Required for heating, cooling, ductwork, exhaust, mini-splits, heat pumps, air handlers, rooftop unit replacement, A/C, furnaces, and water heaters in Fort Collins. Governed by the 2024 International Mechanical Code (IMC) and 2024 International Fuel and Gas Code (IFGC) with Fort Collins Amendments.
Roofing Permit (Reroof)
Required for roof replacement/repair beyond a minor threshold on residential and commercial buildings in Fort Collins. Flat-fee Fast-Track permit; residential and commercial rates differ. Fort Collins requires Class 4 impact-resistant asphalt shingles when replacing 50% or more of a roof and mandates ice barrier at all eaves.
Solar PV Permit
Required for rooftop or ground-mounted solar PV installation, reinstallation, and energy storage systems (ESS) in Fort Collins. Because Fort Collins Utilities is the city's own municipal electric utility, solar/battery projects require a SEPARATE Utilities Interconnect and Rebate Application in addition to the Building Services permit. A separate Poudre Fire Authority permit is also required for new installations and larger ESS.
Accessory Dwelling Unit (ADU) Permit
Required for construction of a new attached or detached ADU in Fort Collins. Since February 2025, Colorado state law HB 24-1152 allows ADUs in all Fort Collins zone districts (previously limited to Old Town and select neighborhoods), and prohibits owner-occupancy requirements — ADUs may be rented out separately from the primary home. Fort Collins is home to Colorado State University, making ADUs relevant for rental/student housing demand. All ADUs require a mandatory Basic Development Review before a building permit.
Demolition Permit
Required for demolishing an existing structure in Fort Collins, whether interior/non-structural, interior structural, partial building, or complete building demolition. Requirements scale with demolition scope (asbestos disclosure/assessment, state approval notice, construction waste management).
Commercial Tenant Improvement / Remodel Permit
Required for commercial alterations, change of function/use/occupancy, tenant finish, and vanilla shell/white box/landlord work in Fort Collins. Uses the same tiered valuation-based fee table as residential remodels.
Deck / Covered Patio Permit
Required for decks, stairs, ramps, landings, and patio/porch covers in Fort Collins (except small decks under 200 sq ft / 30 in. high, which are permit-exempt). Flat-fee Fast-Track/Exterior permit; pre-built structures and commercial projects require a Colorado-licensed structural engineer's stamp.
EV Charger / Electric Vehicle Charging Station Permit
Required for installation of a residential or commercial EV charger in Fort Collins. Residential EV chargers for single-family detached/duplex/townhomes are Fast-Track eligible under the standard Electric permit; commercial and multifamily EV chargers use the valuation-based Remodel/Alteration permit fee table with a dedicated 'EV Charger (Commercial and Multifamily)' line item — both documented directly on the City's Building Permits page (Fast-Track Permits and Remodel and Alteration Permits sections).
Sign Permit
Required to install, alter, or replace most permanent signs (wall, ground/monument, awning, projecting/fin, canopy, secondary roof) in Fort Collins, under Land Use Code Section 5.16 (Signs). Administered by the Zoning division of Community Development & Neighborhood Services — a distinct process from Building Services' Fast-Track/Remodel permits, with its own City-issued Sign Contractor license class. Temporary signs (banners, feather flags) use a separate Temporary Sign Permit Application under LUC Section 5.16.3. Despite a direct chase across the City's Fee Schedules page, the Zoning Permits webpage, and both Sign Permit Application PDFs, no published dollar fee figure for the sign permit itself could be located — flagged honestly below rather than estimated.
Fire Sprinkler and Fire Alarm System Permit
Issued entirely by Poudre Fire Authority (PFA) — a joint city-district fire authority genuinely separate from Fort Collins Building Services — through its Fire Prevention and Community Risk Reduction (FPCRR) Division. Required for new or altered fire sprinkler systems (NFPA 13/13R commercial and multi-family, NFPA 13D one- and two-family dwellings), fire alarm systems, and related life-safety systems, governed by the City of Fort Collins' adopted 2024 International Fire Code (confirmed directly via PFA's own Fire Code Amendments page this session). Fees are calculated from system valuation via PFA's own online System Plan Review Fee Calculator, confirmed directly this session by testing several valuations, plus City sales tax (1.925%) and Larimer County tax (0.4%). This PFA permit is required IN ADDITION TO any City of Fort Collins Building Services permit for the same project.
Change of Use / Change of Occupancy
Fort Collins has no standalone change-of-use or change-of-occupancy permit or fee line — confirmed directly this session by checking the Building Permits page's full list of permit-type accordions (52 entries, none named Change of Use or Change of Occupancy) and the Fee Schedules page's Zoning Services table (no such line item). A change of use/occupancy instead runs on two parallel tracks already partly documented elsewhere in this file: the zoning side, verifying the new use is allowed under the Table of Primary Uses in Article 4 of the Land Use Code for the property's zone district (optionally confirmed via a $100 Zoning Verification Letter); and the building-code side, where the existing Commercial Remodels permit type explicitly lists 'change of function, use, or occupancy' as an example project and requires the City's dedicated 'Change of Occupancy Permit Requirements' submittal packet, reviewed under the City's adopted 2024 International Existing Building Code (IEBC).
New residential construction activity
New privately-owned residential construction onlyHousing units authorized by building permits for new privately-owned residential construction — this is not total permit volume (no commercial permits or remodels).
- Latest month (2026-05)
- 465units
70 buildings · $106.2M valuation
- Trailing 12 months
- 1,458units
12 of 12 months reported · #4 in Colorado coverage by units
- Year to date (2026 YTD through 2026-05)
- 822units
265 buildings · $216.6M valuation
5 month(s) reported to Census
- Full year 2025
- 1,313units
361 buildings · $268.4M valuation
Source: U.S. Census Bureau, Building Permits Survey (BPS), 2026-05 vintage. Census survey data — separate from the permit-requirements verification above. All Colorado building activity
Tips & gotchas
- New building codes (2024 IRC/IBC/IECC + Fort Collins Amendments) took effect April 1, 2026 — confirm your submittal date against this cutoff; the 2021-cycle codes remain valid for reference only until Oct. 1, 2026.
- Fort Collins Utilities is the city's OWN municipal electric utility (distinct from Xcel Energy, which serves other parts of Larimer County) — solar, battery storage, and new ADU electric service all route through Fort Collins Utilities-specific review/interconnect steps (Solar-Rebates@fortcollins.gov, ElectricProjectEngineering@fortcollins.gov) in addition to the standard Building Services permit.
- Electrical and plumbing permits are issued directly by City of Fort Collins Building Services (not a Colorado state board) — but tradespeople must hold the underlying State of Colorado license, and Master Electricians/Plumbers must separately register with the City (no extra city exam) per the Contractor Licensing page.
- As a CSU college town, Fort Collins has an active ADU/rental market; since Feb. 2025 (Colorado HB 24-1152) ADUs are allowed in all zone districts and cannot require owner-occupancy, though short-term rental of ADUs remains prohibited outside PUDs.
- Fort Collins' structural design criteria (30 in. frost depth, Seismic Design Category B, 35-50 psf ground snow loads, Front Range Gust Map wind speeds) reflect its high-wind foothills location — notably different from other Colorado Front Range cities; verify site-specific values via the ASCE 7-22 Hazard Tool referenced on the Building Code page.
- Most Fast-Track trade permits (electric, plumbing, mechanical, water heater, fireplace) are flat $65 fees — among the simplest and cheapest in the multi-state PermitBase dataset — but multi-trade or occupancy-changing scopes route to the higher valuation-based Remodel/Alteration fee table instead.
- Sign permits and fire sprinkler/alarm permits are NOT handled by Building Services at all: signs are administered by the Zoning division (its own City Sign Contractor license, LUC Section 5.16) and fire sprinkler/alarm systems are permitted entirely by Poudre Fire Authority (a separate joint city-district fire authority) — budget for genuinely separate application tracks, contacts, and fee schedules on any project touching either.
- There is no standalone 'change of use' permit in Fort Collins — it is addressed via a zoning-side use check (Article 4 Table of Primary Uses, optional $100 Zoning Verification Letter) plus, if construction or an occupancy-classification change is involved, the existing Commercial Remodels building permit and the City's Change of Occupancy Permit Requirements packet under the 2024 IEBC.