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Room Additions
Room additions are their own discipline — different from a remodel and different from an ADU. We integrate the new framing, foundation, roof, and finish so the addition disappears into the original architecture instead of looking glued on.
What we do
Scope you can expect.
- Bedroom and bathroom additions
- Primary-suite additions with walk-in closet and bath
- Second-story pop-ups and roof-over conversions
- Family-room and great-room expansions
- Integrated structural, MEP, roof, and finish work
Our approach
How we run the job.
- 01
Match what's there. We study the original framing, trim, and finishes before we draw a line.
- 02
Plan the seams. Where new meets old is where additions look cheap or look right.
- 03
Permit early. Setbacks, height limits, and FAR rule the design — we figure them out first.
- 04
Build with the same crew that quoted you. No handoffs.
Related work
Recent additions projects.
Frequently asked
Common questions.
How much addition can we add to our lot?
Depends on the city, the lot, the FAR, and the setbacks. We'll do a feasibility read before you commit to drawings — usually a same-day answer after a site walk.
Can you match the existing house?
Yes — that's most of the job. Matching trim profiles, siding, roof pitch, and window proportions is what makes an addition feel original instead of bolted-on.
How long does a typical addition take?
Plan on 4–8 months of construction once permits are issued, depending on size and whether the existing house stays occupied during the work.
Where we work
Additions across the South Bay.
Get a quote
Have a additions project on your mind?
Free consultation. Honest answers about what's possible, what it costs, and how long it takes.