Finishing an unfinished basement means framing, insulation, electrical and plumbing rough-in, moisture mitigation, and drywall — plus a properly sized egress window if the basement finishing project adds a bedroom. Basement finishing is one of the most common residential project types in Highlands Ranch, in a community where most homes are now old enough that an unfinished basement is overdue for use.
A basement bedroom created during a basement finishing project needs an egress window with a minimum 5.7 square foot net clear opening, at least 20 inches wide and 24 inches tall, with a sill no higher than 44 inches off the finished floor — plus a code-compliant window well if the window sits below grade. These egress requirements apply under Douglas County’s adopted 2024 code regardless of whether the basement finishing project is adding one bedroom or several.
We provide basement finishing services across all of Highlands Ranch — ZIP codes 80126, 80129, and 80130 — reaching every village built during the community’s original 1980s-through-early-2000s development, where unfinished basements are common and basement finishing demand runs high.
Basement finishing permits go through Douglas County’s Building Division under its “Basements and Remodels” permit category, since Highlands Ranch has no separate city building department. Because basement finishing is fully interior work, it does not require sign-off from the Highlands Ranch Community Association’s Architectural Review Committee, which reviews only exterior-visible changes.
A mid-size basement finishing project typically runs 6 to 10 weeks, longer if egress window excavation is needed to create a compliant opening below grade.
Colorado’s expansive clay soils make moisture intrusion and vapor barrier detailing particularly important on any basement finishing project — a basement finished without proper moisture control risks mold and foundation-adjacent water issues most homeowners aren’t warned about until it’s a problem. Undersizing an egress window opening by a few inches is the second most common basement finishing mistake, and one that fails inspection outright rather than just creating a maintenance issue later.
We detail vapor barriers and moisture control against Colorado’s expansive clay soils on every basement finishing project as a standard part of the scope, not an upsell. Egress window openings are measured and confirmed against the exact 5.7-square-foot, 20-by-24-inch, 44-inch-sill requirements before framing starts, so a basement finishing project doesn’t fail inspection over a preventable sizing error.
Yes — basement finishing is one of our most common residential services in Highlands Ranch, given how many homes here still have unfinished basements from the original build-out.
A basement bedroom needs an egress window with at least a 5.7 square foot net clear opening, minimum 20 inches wide and 24 inches tall, with a sill no higher than 44 inches off the finished floor.
No — basement finishing is fully interior, so it only needs a Douglas County permit. HRCA Architectural Review Committee approval applies only to exterior-visible changes like additions.
A mid-size basement finishing project typically runs 6 to 10 weeks, longer if egress window excavation is needed below grade.
Colorado’s expansive clay soils make moisture intrusion and vapor barrier detailing especially important — basement finishing without proper moisture control risks mold and water issues over time.