Brothers 59 Construction delivers finished lower level in Cobblestone Ranch — east Castle Rock open-space community. Typical project range $800K–$2.2M; two-story estate homes and finished-basement builds. 5.0/5 rating across 19 verified Google reviews.
| Tier | Investment Range | What's Included |
|---|---|---|
| Refined | $120K–$250K | Finished lower level with wet bar, guest suite, full bath, and quality flooring and lighting |
| Signature | $250K–$500K | Entertainment-focused finish with home theater, wine room, gym, and premium tile and custom cabinetry |
| Architectural | $500K–$900K+ | Full luxury lower level with walkout, golf simulator, spa/wellness zone, custom bar, and estate-grade finishes |
Where the investment goes: Labor & trades 40–50% · Materials & fixtures 35–45% · Design, permits & mgmt 10–15%.
Douglas County basements often start as large unfinished spaces (2,000+ sq ft) common in Castle Pines and Sterra Ridge homes, so scope scales fast. Walkout conditions, egress window wells cut into expansive soils, and radon mitigation are near-universal cost drivers here. High-end elements — theaters, wine cellars with cooling, wet bars, and full baths requiring below-grade plumbing and ejector pumps — push the per-square-foot cost well above main-level finish work.
Egress, framing, MEP, full baths, wet bars, home theaters, wine rooms, and gyms with proper waterproofing and vapor management.
Egress permitting, vapor barrier and rigid foam assemblies, in-house plumbing/electrical, and acoustic treatment.
DMX, DriCore, Kaleidescape, Sonance, Sub-Zero undercounter
Active across Cobblestone Ranch HOA and surrounding Cobblestone Ranch neighborhoods, with HOA-compliant design review packages prepared to each ARC standard.
Brothers 59 Construction publishes monthly Douglas County permit reports sourced from official county records.
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In Douglas County, high-end basement finishing typically runs $130–$300+ per square foot depending on bathrooms, bars, theaters, and wellness features included.
Douglas County sits in a high-radon zone, so mitigation systems are standard on finished basements and should be budgeted into any lower-level project.
Yes — Douglas County requires permits and inspections for electrical, plumbing, egress, and framing in any basement finish, and code mandates egress windows for bedrooms.
Phone: 303-434-7658 · Email: michaelglivar1@gmail.com