Brothers 59 Construction delivers square-footage addition in Stroh Ranch — southwest Parker rolling parcels. Typical project range $750K–$1.8M; semi-custom and whole-home remodels. 5.0/5 rating across 19 verified Google reviews.
| Tier | Investment Range | What's Included |
|---|---|---|
| Refined | $150K–$350K | Single-story addition (300–600 sq ft) with matched exterior, quality finishes, and standard structural work |
| Signature | $350K–$700K | Two-story or complex addition with new foundation, premium windows, custom millwork, and integrated HVAC/electrical upgrades |
| Architectural | $700K–$1.2M+ | Large multi-room wing or in-law suite with architectural glazing, structural steel, and estate-grade finishes throughout |
Where the investment goes: Labor & trades 45–55% · Materials & fixtures 30–40% · Design, permits & mgmt 12–18%.
Additions in Douglas County run $450–$800+ per square foot at the luxury level because tying new structure into an existing home requires foundation matching, roofline integration, and utility rerouting. Matching original stone, stucco, or custom siding on established Castle Rock and Highlands Ranch estates drives material premiums. Setback, height, and HOA architectural-review constraints often add engineering and design cost before a shovel hits the ground.
Site-built additions integrated to the original architecture: bump-outs, second-story pop-tops, attached suites, and connector galleries.
Structural engineering, foundation extension, roof tie-in, MEP extension, and seamless interior/exterior finish matching.
Marvin, Andersen, James Hardie, GAF, CertainTeed
Active across Stroh Ranch Master Association and surrounding Stroh 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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Additions require demolition, structural integration, and finish-matching to existing construction, plus working around an occupied home — all of which add labor complexity absent in ground-up building.
Yes — most Douglas County communities require HOA architectural review for exterior changes, and the County requires structural permits and inspections for any square-footage addition.
Expect 6–12 months depending on scope; two-story additions with new foundations and structural upgrades sit at the longer end due to engineering and inspection sequencing.
Phone: 303-434-7658 · Email: michaelglivar1@gmail.com