How Much Does It Cost to Finish a Basement in South Denver? (2026)
An unfinished basement is the cheapest living space you will ever add - the structure is already built, and you pay only for what makes it livable. Here's how basement finishing is priced in South Denver, what's included, and how permits work in our area.
What basement finishing costs per square foot
Basement finishing typically runs $65-$105 per square foot, with simpler layouts as low as $45/sq ft and projects with a full bath, wet bar, or media room toward the top. A finished basement with livable amenities commonly totals $40,000-$70,000.
What's included
- Framing, insulation, drywall, and finishes
- Electrical, lighting, and HVAC extensions
- Optional bathroom, wet bar, or kitchenette
- Egress windows where required for bedrooms
Permits and timelines by county
Douglas County (Castle Rock, Highlands Ranch, Lone Tree, Parker) often offers same-day over-the-counter permits for basement finishes. Arapahoe County (Englewood, Centennial, Littleton, Greenwood Village) plan reviews run about 6-8 weeks. Budget $1,500-$4,000 for the permit. We pull and manage permits for you.
How long does a basement remodel take?
Most basement finishes take about 6-10 weeks, depending on size, bathrooms, and egress or permit requirements.
Skip the guesswork
Plug your basement's square footage into our free instant ballpark calculator and get a price range in under a minute - no call required.
Get a basement estimate in South Denver
Custom Professional Renovations finishes basements across South Denver with a free consultation and a 2-year workmanship warranty. Book a free consultation or see our basement remodeling services.