Room Addition & Framing
Turlock, CA · $120K – $160K
480 sq ft family room addition with matching roofline and extended HVAC.
Home Additions
More house, without moving
Adding square footage means engineering, permits, and a foundation that ties into what's already there. We manage the whole path — plans, plan check, inspections, and finish work that matches the existing house.
What's included
Everything in the scope
- Plans and structural engineering coordination
- Permit submittal and plan check
- Foundation and slab work
- Framing, roofing, and weatherproofing
- Electrical, plumbing, and HVAC extension
- Insulation, drywall, and finish carpentry
- Exterior siding and stucco matching
- ADU and garage conversions
Typical investment
$150 – $400 per square foot
Timeline
Plan on 4–8 months total, with 3–5 of those on site.
What drives the price
- Foundation type and site conditions
- Whether the addition includes a kitchen or bath
- Roofline complexity and matching existing finishes
- HVAC capacity — extend the existing system or add one
- City vs. county jurisdiction and plan check timelines
Before & after
Drag to see the difference
Before
After
Our process
How your home additions gets built
- 01
Free consultation
Feasibility, setbacks, and a realistic budget range before you spend on plans.
Day 1 - 02
Design & engineering
Architectural plans and structural calcs prepared for submittal.
3–6 weeks - 03
Permits & plan check
Submittal, corrections, and issued permit.
4–10 weeks - 04
Foundation & framing
Footings, slab, framing, roof tie-in, and dry-in.
3–5 weeks - 05
Rough-in & finish
MEP rough-in, insulation, drywall, flooring, paint, trim.
5–8 weeks - 06
Final inspection
Sign-off, punch list, and walkthrough.
1 week
Design & engineering
3–6 weeks
Plan check & permits
4–10 weeks
Foundation & framing
3–5 weeks
Rough-in through finish
5–8 weeks
Recent work
Projects like yours
ADU Garage Conversion
Patterson, CA · $95K – $130K
Two-car garage converted to a permitted one-bedroom ADU with kitchenette.
Primary Suite Addition
Modesto, CA · $180K – $220K
Bedroom, walk-in closet, and full bath added off the rear of the home.
Why homeowners hire us for this
We tell you if it doesn't pencil
Setbacks, sewer capacity, and lot coverage get checked before you pay for plans.
Permit work is ours, not yours
We handle submittal, corrections, and every inspection.
Finishes that actually match
Stucco texture, roof profile, and trim matched so the addition doesn't look bolted on.
The existing house stays livable
We wall off and dust-control the tie-in until the new space is dried in.
Home Additions FAQs
What permits are needed for an addition?+
A building permit at minimum, usually with electrical, plumbing, and mechanical sub-permits. Additions also require stamped structural plans in Stanislaus County jurisdictions.
How long does an addition take?+
Typically 4–8 months start to finish. Plan check is the least predictable piece.
Can you build an ADU?+
Yes — detached ADUs, attached additions, and garage conversions.
Will my property taxes change?+
Added square footage is reassessed on the new value only, not the whole property. Confirm specifics with the county assessor.
Free estimate
Start your home additions
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