Basement finishing in Fort Collins
Finishing help for basements across Larimer County's largest city, from older homes near Old Town to newer neighborhoods on the south side.
Fort Collins is the Larimer County seat and Colorado's fourth-most populous city, with 169,810 people at the 2020 census. Colorado State University is its largest employer, and the city grew outward from Old Town and the Cache la Poudre River, growing fastest in the mid-20th century. That gives it every kind of basement, from small, low cellars under early homes to tall poured basements in newer subdivisions.
What Fort Collins homeowners ask for
- Finishing builder-grade basements with a family room, bedroom and bath
- Renovating older finished basements with cracked drywall and sticking doors
- Adding legal bedrooms in homes near campus
- Media rooms and bars for winter evenings
City rules to know
The city issues a basement finish permit as a fast-track permit and publishes a basement finish guide that lists what inspectors check. Its guide permits floating walls but doesn't require them, sets 6 feet 8 inches as the ceiling minimum for living areas and bedrooms, and requires a backwater valve for new basement plumbing fixtures. Contractors need a City of Fort Collins contractor license, and Poudre Fire Authority handles fire-related permits.
Clay and climate
Fort Collins has a cold semi-arid climate with about 16 inches of precipitation and 51 inches of snow a year, so soil around a foundation swings between dry and wet. Those swings are what make expansive clay move. Keeping irrigation and downspout water away from the house is the cheapest thing you can do before finishing.
Common questions
Where do Fort Collins basement finish permits come from?
The City of Fort Collins Building Services, through its Accela online permit system.
Does a Fort Collins basement finish need a city contractor license?
The city says all contractors working in Fort Collins need a city license. Owners doing work on their own single-family home are exempt under certain conditions.
Services in Fort Collins
- Basement finishingA complete first finish for an unfinished Fort Collins basement, built and inspected to the city's basement finish rules.
- Basement renovationReworking an older or worn-out finished basement: new layout, insulation, wiring and surfaces.
- Basement bathroomsNew basement baths with drains, backwater protection, venting and a ducted fan.
- Basement bedrooms and egressBedrooms that meet Fort Collins size, ceiling, alarm and escape-window rules.
- Wet bars and media roomsBars, home theaters and game rooms with the plumbing, circuits and sound control planned in.
Nearby areas
Planning a basement on Front Range clay?
Call and a local basement finishing company will look at the slab, the layout and the permit with you.