We had a tiny living room that opened onto a covered patio we never really used. Right Image Builders designed and built a full family room addition in its place — 400 square feet, vaulted ceiling, skylights, and bifold doors to the garden. It completely changed how we live in this house. You can't tell it's an addition — it looks like it was always there.

Home & Room Addition Contractor in West Hollywood, CA
More room without moving — rear additions, primary suites and second stories on West Hollywood lots, engineered and permitted through the City of West Hollywood, matched to your existing home. CSLB #1021284.
Professional, licensed & insured Fixed-price proposals Permits pulled & closed Our own crew, not subs
Tell us about the project. We call back to schedule the on-site estimate in West Hollywood.
Room & Home Additions in West Hollywood, CA: Right Image Builders (CSLB #1021284) builds room additions for 1920s–40s Spanish and traditional houses and duplexes on small lots, alongside condo and apartment buildings across West Hollywood West, the Norma Triangle and the hillside streets above Sunset, with its own crew and permits through the City of West Hollywood Building and Safety Division. Plan on 2–4 months of design, engineering and plan check, then 3–6 months of construction. One fixed written price after a free on-site estimate.
Licensed general contractor, CSLB #1021284, licensed since 2016, 5.0★ Google (45 reviews), 4.9★ Angi (103 reviews). Office in Valley Glen, about 25–35 minutes from West Hollywood. Planning ranges by tier and neighborhood are in the room addition cost guide.
Right Image Builders is a licensed home addition contractor serving West Hollywood — West Hollywood West, the Norma Triangle, the hillside streets above Sunset, the blocks around Plummer Park and the Eastside streets toward La Brea — the room addition contractor to call when a 1920s–40s Spanish or traditional house on a small lot needs one more bedroom, a primary suite or a second story. We build rear room additions, suites and second-story expansions, engineered and permitted through the City of West Hollywood Building and Safety Division, under one fixed-price contract; our crew is based in Valley Glen about 25–35 minutes away. Call (818) 210-4544.
More Room,
Without Leaving West Hollywood
West Hollywood lots are small, so an addition is usually measured in feet rather than rooms: a rear bump-out that turns a galley into a family kitchen, a primary suite pushed into the back yard, or a second story where the height limit and the floor-area rules allow it. Matching the addition to a 1920s–40s Spanish or traditional house, from the roof tile to the window proportions, is most of the design work.
An addition on a 1920s–40s Spanish or traditional house on a small lot is engineered from the foundation up: footings and a floor to match the house, framing and a roof tied into the existing roof line, plumbing to the lateral for a new bath, electrical on new circuits, HVAC extended or a dedicated mini-split, and stucco, trim and windows matched so the addition reads as original. The electrical service here is typically older 60- to 100-amp services in the prewar houses; a full kitchen, an ADU or EV charging usually means a 200-amp Southern California Edison service upgrade, which is why a 200-amp upgrade is often part of the project.
We are based in Valley Glen, about 25–35 minutes away, and the project lead who does your consultation runs the build and is on site at every milestone. The first thing we do is pull your parcel on the city's parcel map so you know the buildable square footage before you spend anything on drawings.

Ways to Add
Space in West Hollywood
Rear & Ground-Floor Room Additions
A new bedroom, family room or office off the back of a West Hollywood house, on its own foundation and roof, framed into the existing structure and permitted through West Hollywood Building and Safety — the straightforward project on the neighborhood's lots.
Primary Suite Additions
Add the primary bedroom, walk-in closet, and en-suite bath these older homes were never built with — a high-return addition that transforms how the house lives without touching the yard footprint any more than needed.
Second-Story Additions
When the lot is tight or you want to keep the yard, we build up. Second-story additions require careful structural engineering to carry the new load on the existing foundation — exactly the work a licensed contractor engineers and permits. If the lot is short, building up keeps the yard — our second-story addition guide covers the structural evaluation and roof work involved.
Bump-Outs & Kitchen Expansions
A West Hollywood bump-out adds a few hundred square feet to a kitchen, dining room or primary bath, with its own foundation, a matched roof line and exterior, permitted like any other addition.
Engineering & Permits
Every addition is designed, structurally engineered, and permitted through West Hollywood Building and Safety. We coordinate the architectural and structural plans, manage plan check, and carry the project to signed-off final inspection.
Seamless Integration
Matched rooflines, stucco texture, window styles, and floor heights so the addition reads as part of the original home. The difference between an addition that adds value and one that looks tacked on.
Transparent from the first visit to the closed permit.
Professional, licensed and insured, and we put that in writing at every step, because a remodel is a trust decision before it is a construction decision.
California general contractor license CSLB #1021284 (General Building B), active since 2016, with general liability and workers' compensation insurance. Check the license yourself at cslb.ca.gov before you sign anything, with us or anyone else.
The proposal lists what is demolished, what is built, which finishes are included and which permit covers it. If it is not written down, it is not in the job.
When walls, floors or roofs open up we photograph what is behind them and send you the pictures. Anything beyond the scope is priced in writing before the crew continues. You never find out from the invoice.
California law caps a home-improvement deposit at $1,000 or 10 percent of the contract, whichever is less. We follow it. Progress payments follow the work, and the final payment comes after your walkthrough.
We submit the plans, meet the inspector and close the permit. You get the closed-permit record, which is what a buyer, an insurer or an appraiser will ask for.
The people who estimate the job are the people who build it. No subcontractor hand-offs, no call center; your project lead answers the phone during the job and after it.
What Your West Hollywood
Lot Will Allow
West Hollywood is its own city of just under two square miles between Beverly Hills and Hollywood, running from the hillside streets above the Sunset Strip down through the flats along Santa Monica Boulevard to Beverly Boulevard and Melrose. Our office in Valley Glen is about 25–35 minutes away over Laurel Canyon or the 101, and every permit here goes through the City of West Hollywood's Building and Safety Division on the second floor of City Hall at 8300 Santa Monica Boulevard, not LADBS.
Many West Hollywood properties appear in the city's historic resources survey, and a house that is designated, or that the survey identified as a potential resource, can need preservation review before an addition is approved, so we check the parcel's status at the first visit. Above Sunset the hillside standards add geology, grading and access review; on the flats the questions are the setbacks, the height limit and how the addition reads from the street.
The addition is designed, structurally engineered and permitted through the City of West Hollywood Building and Safety Division, with inspections at foundation, framing, rough systems, insulation and final, and hillside review where the parcel requires it; the permit is closed at the end so the new square footage is on record when you refinance or sell.
How We Price a Room addition
in West Hollywood
Every room addition in West Hollywood gets one fixed, written price after a free on-site visit: we measure the house, check what the City of West Hollywood Building and Safety Division requires for the lot and price the whole scope before you sign anything.
What moves the number is the scope you choose, the condition we find behind the walls and the finish level, never a surprise invoice: anything we uncover during the work is priced in writing before the crew continues, and the final payment comes after your walkthrough.
Setting a budget first? The room addition cost guide shows the current planning ranges by tier and neighborhood.
How Long a West Hollywood
Home Addition Takes
A West Hollywood home addition typically needs a few months of design, structural engineering and West Hollywood Building and Safety plan check, then about three to five months of construction for a ground-floor addition and longer for a second story. On level lots the schedule is the most predictable part of the project; hillside parcels add grading and access review to plan check.
The sequence is plans and structural calculations, plan check at the Building and Safety counter at City Hall on Santa Monica Boulevard, then foundation, framing and roof tie-in, rough electrical, plumbing and HVAC with inspections at each stage, insulation, drywall, exterior match to the original stucco and finishes, and final inspection. Second stories add the structural evaluation and any reinforcement before framing. Your fixed-price proposal shows the whole schedule with realistic dates.
Three Steps.
Zero Surprises.
Free Consultation & Zoning Review
We visit your West Hollywood home, pull the parcel's zoning, and tell you honestly what you can build — square footage, height, setbacks — and which addition fits your goals and budget.
Design, Engineering & Permits
We produce architectural and structural plans, submit through West Hollywood Building and Safety, and manage plan check — with a written fixed-price proposal set before construction begins.
Build & Deliver
One crew builds the addition to signed-off final inspection, matched to your existing home. Final payment is due only after your walkthrough approval.
Choosing a Home Addition
Contractor in West Hollywood
Verify the license at cslb.ca.gov (ours is 1021284) — active, classified for structural work, bond and workers' compensation on file — and get insurance certificates in writing. Ask who prepares the plans, who engineers the structure and who takes the permit through the Building and Safety counter at City Hall on Santa Monica Boulevard and answers plan-check corrections; a contractor who knows that counter keeps a West Hollywood project on schedule.
Require a written fixed-price contract with an itemized scope, named allowances, written change orders and progress payments tied to completed work; California caps the down payment at $1,000 or 10 percent, whichever is less. Ask how the addition's foundation, roof and stucco will be tied into an older house so it reads as original, and who manages the schedule day to day.
Add On to Your
West Hollywood Home
Tell us what you want to add and we'll get back to you within 4 business hours. We'll confirm what your lot allows before you spend anything on design.
Prefer to talk it through?
What Clients Say About
Our Room Addition Work
Our full home remodel was a massive undertaking. Right Image Builders handled it all — demo, framing, plumbing, electrical, tile, painting. One contract, one crew, one point of contact. I cannot overstate how rare that is in LA.
They walked me through every permit requirement and handled it all themselves. The project finished on budget and exactly to spec. My BuildZoom contract check confirmed everything — these guys are top 1% for a reason.
Read before you hire anyone.
Plain answers on costs, permits, materials and hiring, written for Los Angeles houses and kept current.
Build Up or Build Out? Second-Story vs. Ground-Floor Additions in Los Angeles
Build up or build out in Los Angeles (2026)? Structure, yard, zoning limits, timelines.
Read the guide →GuideDo You Need a Permit for a Room Addition in Los Angeles?
Learn what typically goes into permitting a Los Angeles room addition, including plans, structural information,…
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Second story addition cost in Los Angeles (2026): Engineering, stairs, roof, zoning, permits and timeline.
Read the guide →AnswersAdditions and whole-home questions
Direct answers from the Los Angeles remodeling FAQ, kept current.
Read the answers →Questions We
Hear in West Hollywood
Yes. Right Image Builders is a licensed California general contractor, CSLB #1021284, with general liability and workers' compensation insurance; verify the license in minutes at cslb.ca.gov under "Check a License" and ask us for the insurance certificates. The West Hollywood estimate is free and on site, done by the project lead who will run the job, and the itemized fixed-price proposal follows within 3–5 business days.
Right Image Builders, a licensed general contractor (CSLB #1021284) based in Valley Glen about 25–35 minutes from West Hollywood, builds room and home additions across West Hollywood West, the Norma Triangle, the hillside streets above Sunset under one fixed-price contract: design, permits through the City of West Hollywood, and construction by one crew, with final payment only after your walkthrough. 5.0★ on Google (45 reviews) and 4.9★ on Angi (103 reviews).
A fixed price, in writing, after the free on-site visit, not a running estimate. The scope is itemized line by line, the City of West Hollywood Building and Safety Division permit and inspections are inside it, and hidden conditions found during a West Hollywood job are priced in writing before any further work. For budget planning before the visit, the room addition cost guide shows the current ranges.
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Build On to Your
West Hollywood Home
Free consultation and zoning review. Written fixed-price proposal. One licensed team from design and West Hollywood Building and Safety permits through to a finished addition matched to your home.
(818) 210-4544