ADUs & Home Additions in Orange County
More home, seamlessly integrated. Detached ADUs, room additions, garage conversions, and second-story builds.
An ADU or home addition can create valuable new living space while increasing the functionality and long-term value of your property. Whether you're planning a rental unit, guest suite, home office, multigenerational living space, or an expanded primary residence, thoughtful planning is essential to a successful outcome.
At Metarock Builders, we manage every phase of the process, including design coordination, engineering, permitting, construction, and final completion. Our experience navigating local regulations and utility requirements helps streamline the project while minimizing costly delays and surprises.
We specialize in detached ADUs, garage conversions, home additions, and second-story expansions that integrate seamlessly with the existing home. Our goal is to ensure the finished space feels like it was always part of the original design, both architecturally and functionally.
Licensed General Contractor #1074300 • B General + C-10 Electrical • Bonded • Insured
The difference is in how we build, not just what we build.
ADU code fluency
Current with SB 9, AB 68/881, and Orange County city overlays. No expensive surprises mid-build.
True architectural integration
Matching rooflines, trim profiles, stucco textures, and window grids — not bolt-on boxes.
Utility planning done early
Panel capacity, water service, and sewer review before drawings, not after framing.
Owner-occupied build experience
We protect your daily life while we expand it.
Everything covered, under one contract.
We handle the full scope so you have one point of contact, one schedule, and one team accountable for the result.
- Feasibility study and code review
- Architectural design and renderings
- Permitting and HOA processing
- Foundation, framing, and structural work
- Utility tie-ins (panel, water, sewer)
- Full interior finish-out (kitchen, bath, flooring)
- Exterior matching (stucco, paint, roof)
- Final inspection and certificate of occupancy
Three clear steps, zero surprises.
Consult
We meet on-site, walk your home, listen to your goals, and answer questions. No pressure, no fees.
Design & Estimate
We develop scope, materials, and a transparent, itemized estimate so you can decide with full clarity.
Build
We execute with daily updates, a single point of contact, and a final walkthrough together at the end.
Frequently asked.
Design and permits typically run 3–5 months; construction is another 5–8 months depending on size and finish level.
Talk to Matt directly
Prefer to talk it through?
Request Your Free ADU & Home Additions Consultation
Tell us about your project. We respond during normal business hours and schedule a no-pressure, on-site consultation at your convenience.
- Licensed General Contractor #1074300
- Bonded & Fully Insured
- On-site estimates always free