Finishing a basement is one of the best ways to add living space in South Denver. Here's what it costs in 2026, what's included, and how permits and timelines work in our area.
2026 basement finishing cost in South Denver
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.
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.