What a room addition with us includes
A room addition changes the footprint or height of your house, so it is engineered, permitted and inspected construction. We manage everything from the first site visit to the final inspection: plans and structural engineering through our design partners, LADBS or city permits, foundation, framing, roofing, tying the new space into the existing structure, plumbing and electrical, and matching the finishes so the addition looks like it was always there.
Additions we build most often
- Bedroom and primary suite additions with a full bathroom and walk-in closet.
- Family room and kitchen extensions - pushing out the back wall to open the kitchen and dining area.
- Second-story additions where the lot is small and the foundation can carry the load.
- Bump-outs and bathroom additions of 60-150 sq ft that solve one specific problem.
- Home offices and in-law suites with a separate entrance.
What affects the price of a room addition
The price of an addition depends on foundation and soil conditions, how many walls and roof lines have to be tied in, whether a bathroom or kitchen is part of the space, and the finish level you choose. Second-story additions cost more per square foot because of structural work on the existing house. We put all of it in a line-item written estimate after the site visit, and that number is fixed before demo day.
How the job runs
- Site visit: lot setbacks, existing foundation and framing, utilities and roof structure.
- Plans and engineering, then a fixed-price scope with a start and finish date.
- Permits through LADBS or your city's building department, with plan-check corrections handled by us.
- Foundation, framing and roof, then weather-tight envelope.
- Plumbing, electrical and HVAC rough-in with inspections at each stage.
- Insulation, drywall, flooring, paint, trim, fixtures and final inspection.
Why homeowners hire us for additions
An addition touches the foundation, the roof and the electrical service of your house, which is exactly where unlicensed work causes the expensive problems. We are a licensed general contractor, we pull permits under our own license, and one crew carries the project from foundation to paint. That is also why our additions blend in: the same people who framed the wall are matching the stucco texture and baseboard profile at the end.
What is included in this service
- Site evaluation of foundation, framing, roof and utilities
- Plans and structural engineering through our design partners
- LADBS or city permit submission and plan-check corrections
- Excavation, foundation and slab or raised-floor framing
- Wall and roof framing tied into the existing structure
- Roofing, windows, exterior doors, stucco or siding matched to the house
- Plumbing and electrical rough-in, new circuits and fixtures
- HVAC extension or dedicated mini-split
- Insulation, drywall, flooring, paint, trim and doors
- Bathroom or kitchen build-out where included
- All inspections through final
- Final clean and punch-list walkthrough
Frequently asked questions
Do room additions need a permit in Los Angeles?
Yes, always. Additions change the footprint or structure of the house and are permitted and inspected through LADBS or your city's building department. We handle all of it under our own license.
How long does an addition take?
Typically 6-10 weeks for plans and permits, then 2-4 months of construction depending on size. Second-story additions run longer. You get a dated schedule with the estimate.
Can we live in the house during construction?
Usually yes. We keep the addition weather-tight and separated from the living space until the final tie-in, and we schedule the noisy days with you in advance.
Is a second story possible on my house?
Often, but it depends on the existing foundation and framing. We check that at the site visit and, if needed, our engineer reviews it before you commit to anything.
Will the addition match my existing house?
That is the point of doing it with one crew. We match stucco texture, roof lines, window styles, flooring and trim profiles so the addition reads as original.
Do you work in cities outside Los Angeles?
Yes. Burbank, Pasadena, Santa Monica, Culver City, Beverly Hills, Calabasas and West Hollywood have their own building departments and we permit through each of them.
Other services our Los Angeles crews handle
