Basement remodeling cost in Fort Collins

How much does it cost to finish a basement in Fort Collins?

Most Fort Collins homeowners spend $50,000 to $110,000 or more on a full basement, according to one local contractor's published range. Size, room count and finish level move a job within that band.

Statewide figures run close. One Colorado firm's 2026 guide puts most finishes at $65 to $105 per square foot and a 1,000 square foot basement at about $65,000 for a basic finish.

How much does it cost to finish a 1500 sq ft basement in Colorado?

No Fort Collins source publishes a figure for 1,500 square feet. The Colorado guide's size table stops at 1,200 square feet, where it lists $78,000 to $90,000 for a basic finish.

Its mid-range band for 1,200 square feet is $96,000 to $114,000. A bigger basement usually costs a little less per foot because permits and some trade visits cost about the same at any size.

What do single features cost in a Colorado basement?

The same 2026 Colorado guide prices common features like this:

• Full bathroom: $15,000 to $25,000
• Home theater setup: $10,000 to $25,000
• Wet bar: $8,000 to $15,000
• Bedroom with egress window: $6,000 to $10,000
• Egress window on its own: $2,500 to $5,000 each
• Built-in storage or closets: $2,500 to $6,000

What does a basement permit cost around Fort Collins?

In Fort Collins the basement finish building permit fee is $155. The city adds sales tax based on the total value of materials and labor.

Greeley sets its fees from project value. Its plan review fee is 65 percent of the building permit fee, and it waives that review fee for projects valued under $25,000.

Larimer County and the towns of Windsor and Timnath also price permits from project value. Timnath posts a valuation worksheet with its basement finish permit.

How long does a basement finish take in Northern Colorado?

Local contractors publish different answers, so treat any figure as a starting point. One Fort Collins contractor says most finishes take 8 to 12 weeks. A Windsor builder quotes 4 to 8 weeks.

Permit review adds time before work starts. Loveland's permitting FAQ lists a current plan review estimate of 20 to 30 working days per round of review.

What pushes a Fort Collins basement quote up?

Plumbing, windows and ground conditions move the number most. Watch for these lines:

• A bathroom with new drain lines cut through the slab
• A new escape window, which in Fort Collins also needs an engineer's letter
• Floating walls and slab repair where clay has lifted the floor
• A radon system if the test reads 4 pCi/L or higher
• Duct runs so every room has supply and return air
• Undoing an old finish that never had a permit

Is there help paying for radon work in Larimer County?

Yes, for qualifying homeowners. Colorado's Low Income Radon Mitigation Assistance program can pay for a radon system, and Larimer County lists the income limits.

For a four-person household in Larimer County, the limit is $104,300. Some health savings and flexible spending accounts may also cover a radon system.

When should you hold off on finishing a basement?

Wait while any of these remain. Each one costs more to fix after drywall.

• The slab is cracked and still moving
• Water gets in after rain or snowmelt
• A radon test reads 4 pCi/L or more with no fix planned
• The ceiling cannot reach 6 feet 8 inches in living areas