Basement Finishing Centennial, CO
Centennial’s 1960s and 70s homes were built with basements — and most of them have been storage rooms ever since. Arch Design & Build finishes them into permitted, livable space. Design, engineering, and construction under one contract
How Much Does Basement Finishing Cost in Centennial?
It depends on what you’re building and what’s already down there.
An open-plan family room is a different project from a basement suite with a bedroom, full bathroom, and wet bar. The scope drives the cost. So does what you find behind the drywall — or behind bare concrete — in a 1960s Centennial home. Older plumbing rough-ins, low ceiling heights, and dated electrical panels are common in neighborhoods like Southglenn and Foxridge. We assess all of it on the first visit.
Submit a request and we’ll come out to assess the space and give you an exact number. Free of charge
Open layout
Open layout — drywall, flooring, lighting, egress
from
$7,000 – $18,000
Mid-range
Mid-range — bedroom, closet, partial bath rough-in
from
$18,000 – $38,000
Full finish
Full finish — suite, full bathroom, wet bar, custom finishes
from
$40,000+
How We Work
1
Free Structural Assessmen
We get into the basement. Ceiling height, existing mechanicals, moisture, egress options. You get a real scope, not a ballpark off a phone call
2
Design
Full architectural drawings of the finished layout. Once you sign a contract, we build a VR walkthrough so you can see every detail before framing starts
3
We Pull the Permits
Centennial building permit applications, egress window permits, electrical and plumbing sign-offs — managed entirely by our team through the City of Centennial Community Development department
4
Construction
Fixed price. Clean site. One contact from framing through final inspection
Financing Available
Don’t let budget hold you back. We work with trusted partners
Denver Permits for Basement Finishing
Do I need a permit to finish my basement in Centennial?
Yes. Any project that involves framing new walls, adding electrical circuits, running plumbing, or installing egress windows requires a permit through the City of Centennial. Egress windows — required for any room classified as a bedroom — go through both building and zoning review.
We prepare all documentation, file every application, and schedule every inspection. You don’t touch a form
Why Finish Now?
A finished basement adds usable square footage without the cost of an addition. In Centennial’s housing market — where homes in Southglenn, Heritage Greens, and Piney Creek regularly trade above $600,000 — converting an unfinished basement into livable space is one of the highest-ROI moves available to a homeowner. You’re already paying to heat it
Why Arch Design & Build
VR walkthrough of the finished space included after contract signing
Architect, structural engineer, and builder — one team, one contract
All Centennial permits and inspections handled by our team
Fixed-price quotes. What we say is what you pay
Licensed, bonded, and insured in Colorado
Where We Work in Centennial
We finish basements across Centennial — Southglenn, Foxridge, Heritage Greens, Arapahoe Estates, and Piney Creek. Primary service zip codes: 80121, 80111, 80122, and 80016
Frequently Asked Questions
How long does basement finishing take in Centennial?
A straightforward open-plan finish runs 5–7 weeks. Add a bedroom and bathroom and plan for 8–11 weeks. Centennial permit review time is built into the schedule from day one.
My basement has low ceilings. Is it worth finishing?
Colorado requires 7 feet of ceiling height in habitable rooms. We’ll measure during the consultation and tell you honestly whether it works — and whether a partial dig-out makes financial sense for your project.
Can a finished basement be used as a rental unit?
It can, but Centennial has specific requirements for egress, certificate of occupancy, and unit separation. We’ll tell you upfront what’s required and whether your basement qualifies.
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Ready to Use That Space?
Free consultation. Exact quote. We come to you
Arch Design & Build
9800 Mount Pyramid Ct, Suite 400, Englewood, CO 80112