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 Hollywood Hills, CA
More room without moving — rear additions, primary suites and second stories on Hollywood Hills lots, engineered and permitted through LADBS, matched to your existing home. CSLB #1021284.
Professional, licensed & insuredFixed-price proposalsPermits pulled & closedOur own crew, not subs
Tell us about the project. We call back to schedule the on-site estimate in Hollywood Hills.
Room Addition Contractor in Hollywood Hills, CA: Right Image Builders (CSLB #1021284) builds room additions for 1920s–30s Spanish and Mediterranean houses on the canyon streets and 1950s–60s post-and-beam and mid-century homes on the ridges, on sloped lots from 5,000 to 20,000+ sq ft across Laurel Canyon, Nichols Canyon and Outpost Estates, with its own crew and permits through LADBS, City of Los Angeles, with Baseline Hillside Ordinance review on nearly every parcel and Mulholland Scenic Parkway design review near Mulholland Drive. 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 20–25 minutes from Hollywood Hills. Planning ranges by tier and neighborhood are in the room addition cost guide.
Right Image Builders is a licensed home addition contractor serving Hollywood Hills — Laurel Canyon, Nichols Canyon, Outpost Estates, Beachwood Canyon and Hollywoodland, Lake Hollywood, Whitley Heights and the Cahuenga Pass — the room addition contractor to call when a a 1,400–2,400 sq ft prewar or mid-century house on a sloped canyon or ridge 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 LADBS (City of Los Angeles) at the Metro Development Services Center, under one fixed-price contract; our crew is based in Valley Glen about 20–25 minutes away. Call (818) 210-4544.
More Room,
Without Leaving Hollywood Hills
The typical Hollywood Hills house is a 1,400–2,400 sq ft prewar or mid-century home on a sloped canyon or ridge lot, and the addition that fits is decided by the slope before anything else: a room on the uphill side on stepped footings, a story added over the garage pad, or a cantilevered room on the view side engineered on caissons. Every one is a hillside project under the Baseline Hillside Ordinance, with its own height, grading and floor-area rules, and most are inside a Very High Fire Hazard Severity Zone as well.
An addition on a 1,400–2,400 sq ft prewar or mid-century house on a sloped canyon or ridge 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 100-amp panels in most prewar and mid-century houses; a 200-amp LADWP upgrade is part of most full kitchens, and on a canyon lot the service drop itself is often the hard part, which is why a 200-amp upgrade is often part of the project.
We are based in Valley Glen, about 20–25 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 ZIMAS so you know the buildable square footage before you spend anything on drawings.

Ways to Add
Space in Hollywood Hills
Rear & Ground-Floor Room Additions
A new bedroom, family room or office off the back of a Hollywood Hills ranch house, on its own foundation and roof, framed into the existing structure and permitted through LADBS — the straightforward project on the neighborhood's level 1950s 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 Hollywood Hills 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 LADBS. 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 Hollywood Hills
Lot Will Allow
The Hollywood Hills run along the south face of the Santa Monica Mountains from Laurel Canyon and Nichols Canyon on the west through Outpost Estates and Whitley Heights to the Cahuenga Pass, Lake Hollywood, Beachwood Canyon and Hollywoodland on the east, with Mulholland Drive along the ridge and the Hollywood Sign above it. Our office is in Valley Glen, about nine miles away over Laurel Canyon or the 101, a 20–25 minute drive; permits run through LADBS, with plan check at the Metro Development Services Center downtown, and nearly every parcel is under the Baseline Hillside Ordinance.
The first thing we do is pull the parcel on ZIMAS: the hillside overlay, the Mulholland Scenic Parkway corridor where it applies, the Whitley Heights HPOZ, the fire zone and the floor-area limit, so you know what the lot allows before you spend anything on drawings. The addition is then engineered with a geotechnical report, permitted through LADBS at the Metro counter, and built with the access plan priced in: crane days, hand-carry and the neighbors' parking are line items, not surprises.
The addition is designed, structurally engineered and permitted through LADBS (City of Los Angeles) at the Metro Development Services Center, 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.
No Surprise Invoices
in Hollywood Hills
A room addition in Hollywood Hills starts with a free on-site visit and ends with one fixed, written price that covers the whole scope, the permit from LADBS and the inspections, before any work begins.
The three things that change the price are the scope, what the house hides and the finishes you choose, and each is settled in writing before the crew moves on; final payment comes after your walkthrough.
If you want numbers before the visit, the room addition cost guide publishes the current planning ranges.
How Long a Hollywood Hills
Home Addition Takes
A Hollywood Hills home addition typically needs a few months of design, structural engineering and LADBS 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 LADBS Hollywood Hills office, 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 Hollywood Hills 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 LADBS, 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 Hollywood Hills
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 LADBS Hollywood Hills office and answers plan-check corrections; a contractor who knows that counter keeps a Hollywood Hills 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 a 1950s house so it reads as original, and who manages the schedule day to day.
Add On to Your
Hollywood Hills 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.
Room Addition or ADU: Which Should You Build in Los Angeles?
Room addition vs. ADU in Los Angeles (2026): Costs, permits, timelines.
Read the guide →Decision guideBuild 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,…
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 Hollywood Hills
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 Hollywood Hills 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 20–25 minutes from Hollywood Hills, builds room and home additions across Laurel Canyon, Nichols Canyon, Outpost Estates under one fixed-price contract: design, permits through LADBS, 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 LADBS permit and inspections are inside it, and hidden conditions found during a Hollywood Hills 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
Hollywood Hills Home
Free consultation and zoning review. Written fixed-price proposal. One licensed team from design and LADBS permits through to a finished addition matched to your home.
(818) 210-4544