Real numbers from a licensed Denver contractor. What basements actually cost per square foot, what drives the price up or down, and how to get an exact itemized quote — free, usually within 24 hours.
Every basement is different, but these ranges reflect what Denver-metro homeowners actually pay in 2026:
| Finish Level | Cost per Sq Ft | Typical 800 Sq Ft Total |
|---|---|---|
| Essential — drywall, flooring, lighting, paint | $40–$55 | $32,000–$44,000 |
| Comfort — adds bedroom, egress window, upgraded finishes | $55–$75 | $44,000–$60,000 |
| Premium — adds full bathroom, wet bar, custom built-ins | $75–$95+ | $60,000–$76,000+ |
These are honest planning ranges — your exact number depends on your layout, plumbing, and selections. That's why the quote is free and itemized: you see exactly where every dollar goes before anything starts.
A full bathroom is the single largest line item (plumbing, venting, waterproofing). Wet bars, egress windows for legal bedrooms, and relocating HVAC or ductwork follow close behind.
Open layouts, keeping plumbing where it already is, simple recessed lighting, and choosing durable mid-grade finishes deliver 90% of the look for significantly less.
Tell us about your basement. Adrian will personally reach out — usually within the hour during business hours.
Most projects run $40–$90 per square foot depending on finish level. A typical 800 sq ft basement lands between $35,000 and $70,000+.
Most projects finish in 6–10 weeks from permit to walkthrough. We handle permits and inspections for you.
Yes — it adds livable square footage in a metro where space is at a premium, and typically recoups a strong share at resale.
Yes. AD's Construction LLC is licensed, insured, and BBB accredited.
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