A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Hollywood
Adding square footage to a Hollywood home usually means working with a lot under 6,000 square feet and a house that was built before modern zoning existed. That changes what you can build, where it can go, and what the city will approve. A home addition in Hollywood typically runs $220 – $380 per square foot for attached construction, with most full-room additions landing between $95,000 and $280,000 depending on scope, foundation work, and whether the project triggers a variance. If you’re planning a second story, a sunroom, or a rear bump-out, call us at (472) 248-8213 to get the project scoped honestly before you spend a dollar on design.
We’ve framed additions across Hollywood, from the hills off Beachwood Drive to the flats around Santa Monica Boulevard and Western. The neighborhood matters. A 1920s bungalow near Whitley Heights behaves differently than a 1950s ranch in the Cahuenga Pass, and the LADBS plan-check path isn’t the same for both. Miles Hartwell leads our crew, and he’ll tell you straight what your lot will and won’t allow. That’s the conversation that saves Hollywood homeowners months of wasted time.
Why Sutton ADU Builders Is Hollywood’s Preferred Home Addition Contractor Company
We didn’t start yesterday. Sutton ADU Builders was founded in 2006 and operates as the ADU and home-addition specialist under the Threshold Group family of home-service companies. That means every person who steps onto your Hollywood property works under the Threshold Standard: background-checked, identity-verified, uniformed, and photo-badged. You get the technician’s name and photo before they arrive. You’ll know exactly who is walking up your driveway on Fountain Avenue or Gower Street before you open the door.
Our Hollywood customers consistently tell us the same thing: the written price was the reason they called, and the crew vetting was the reason they stayed comfortable through the whole build. Every project gets a fixed price in writing before work begins. No scope creep passed silently to the bill. No unfamiliar sub walking through the gate. If the work isn’t right within a full calendar year, the 365-Day Done Right Promise means we return and make it right. No haggling. The second visit is free.
We coordinate scheduling and dispatch from the brand’s Los Angeles office, and our crews work Hollywood locally. That short drive matters when you need a framing inspection sequenced tightly or a plan-check correction hand-delivered to LADBS. It also means we know the inspectors, the plan reviewers, and the zoning quirks that slow down Hollywood projects. That local fluency is worth real money on your final invoice.
Sunroom Addition in Hollywood
A Sunroom Addition in Hollywood usually runs $55,000 – $130,000 for a properly permitted, insulated, conditioned space of 200 – 350 square feet, depending on whether you’re building on a slab, a raised wood foundation, or tying into an existing patio cover. On tight Hollywood lots, the real cost driver is often the side and rear setbacks: if your sunroom pushes past the property line setback, you’re looking at a variance, and that adds time and design engineering costs. We tell homeowners this before they fall in love with the render.
What Hollywood sunrooms trigger at plan check
Attached sunrooms are held to the primary dwelling’s zoning rules, not the looser ADU standards. That means fire separation, glazing limits, and foundation shear requirements all apply. On a 1920s bungalow near Larchmont Village or Melrose Hill, the existing foundation may not be adequate for a 300 sq ft glass room without supplemental footings. That’s a real cost, and it’s better to know it before the plan check, not after.
Timeline and sequencing
Most Hollywood sunroom permits clear LADBS in 8 – 14 weeks when no variance is required. Framing and glazing take another 4 – 6 weeks. If a variance is required, add 4 – 8 months for public notice, the zoning hearing, and the resubmittal cycle. We sequence inspections so the sunroom’s final doesn’t stall your move-in date. Call (472) 248-8213 and we’ll walk your specific lot before you commit to anything.
Second Story Addition Contractor in Hollywood
A Second Story Addition Contractor in Hollywood is not a generalist framing crew. In Hollywood’s hillside districts, a second story forces an existing-structure upgrade: shear walls, holdowns, and possibly a foundation retrofit. In the flats, the trigger is zoning height and floor-area ratio. A second-story addition in Hollywood typically runs $350 – $520 per square foot, so a 600 – 900 sq ft upper level lands between $210,000 and $470,000. The range is wide because the existing structure drives the cost as much as the new framing does.
What the existing house has to do first
Before we frame upward, the original bungalow’s walls and foundation have to accept the new load path. We’ve worked on 1920s homes near Whitley Avenue where the perimeter foundation was unreinforced brick. That means a retrofit package, and that means honest money spent before vertical framing. A second story also changes your fire separation and egress requirements, which affects room layout and window sizing. These are not surprises we let you discover at the final inspection.
Where prefab actually helps on a second story
Panelized systems from Cover and Mighty Buildings can shorten on-site framing time, but they don’t bypass the structural connection detail. The factory-finished panels still need a stamped site-built connection to your existing walls and foundation. We handle that integration and sequence the inspections so the prefab schedule and the LADBS path stay aligned. Done right, a Hollywood second story takes 7 – 11 months from design freeze to final.
Trusted Brands We Service in Hollywood
We work with recognized panel and modular ADU brands including Abodu, Cover, Dvele, and Mighty Buildings. If a Hollywood homeowner is considering one of these product lines, we evaluate the lot, the foundation, and the shear path before the factory order is placed. We also stock common connection hardware and holdown assemblies for these systems in our LA-area supply chain, which keeps Hollywood deliveries moving. Whether it’s a Dvele panel for a rear addition or a Cover module for a detached unit, you get honest guidance on whether that brand fits your lot and your budget.
Common Home Addition Contractor Problems We See in Hollywood Homes
- Variance triggers on tight lots. Most Hollywood lots were platted in the 1920s and 1930s at under 6,000 square feet, with bungalows built 3 – 5 feet from the rear and side lines. Any addition that crosses the required rear-yard setback forces a variance, which adds months and thousands in design and hearing costs. If your house sits close to the back fence, budget for it now.
- Unreinforced foundation surprises. Hollywood’s pre-1940 housing stock often sits on brick or unreinforced concrete perimeters. A second story or heavy sunroom glazing can trigger a required foundation upgrade. That’s an honest line item, not a change order game.
- Prefab panels without a structural path. We’ve seen Hollywood homeowners order panel systems assuming the manufacturer handles everything. The panels arrive, and someone still has to design a stamped connection to the existing structure. That work doesn’t disappear because the walls came on a truck.
- Plan-check sticker shock. A homeowner budgets for design and framing, then LADBS flags the project for a variance or a fire-separation correction, and the resubmittal cycle starts. We map the permitting path before design fees are spent, so the sticker price and the final price stay close.
Pricing for Home Addition Contractor in Hollywood, CA
Here are straight Hollywood ranges. Attached room additions: $220 – $380 per square foot, with most full rooms landing between $95,000 and $280,000. Sunroom additions: $55,000 – $130,000 for 200 – 350 square feet. Second-story additions: $350 – $520 per square foot. Detached ADUs in the 600 – 1,200 square foot range generally run $180,000 – $320,000 before site work. What moves the price: soil conditions, foundation retrofit scope, variance requirements, and whether you choose panelized construction or stick framing. Every project gets a written line-item price before work starts. Call (472) 248-8213 for a free estimate, and you’ll see the actual numbers for your lot.
We Also Serve Cities Near Hollywood
Our crews work throughout the region beyond Hollywood’s boundaries. We serve Los Angeles, Long Beach, Anaheim, and Riverside, and we bring the same written-price standard and Threshold Verified crew vetting to every project. If you’re planning a home addition or ADU in any of those areas, our Home Addition Contractor team can help you scope it the same way we do here in Hollywood.
Serving Hollywood, CA - Our Local Coverage Area
We’re based in the Hollywood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Home Addition Contractor in Hollywood
Almost never. A second story on a 1920s Hollywood bungalow typically requires a structural upgrade to the existing walls and foundation, and often a partial or full seismic retrofit. The original construction rarely provides the shear capacity or foundation strength a second story imposes. We’ve framed vertical additions near Whitley Heights where the existing perimeter was unreinforced brick, and the retrofit was not optional. Call (472) 248-8213 and we’ll tell you what your house will actually require before design fees are spent.
A variance adds roughly 4 – 8 months to the permit timeline. The sequence involves documenting existing non-conforming conditions, submitting a variance package alongside the plan check, public notice, a zoning hearing, and potentially one or more resubmittal cycles. On the 1922 bungalow we framed near Whitley Avenue and Yucca Street, the rear addition crossed the setback because the house sat 4 ft 2 in off the rear line, and the variance ran alongside the plan check, not after. That sequencing saved weeks.
No, they go through the same LADBS permit path as any attached addition, because attached sunrooms are held to the primary dwelling’s zoning and fire-separation rules. Some Hollywood homeowners assume a sunroom can be permitted by-right like a detached ADU, and that assumption fails at plan check. Glass, glazing limits, and foundation shear all still apply. Call us for a straight read on what your sunroom will actually require.
It depends on the required rear-yard setback and whether your existing structure already sits inside it. Most Hollywood lots under 6,000 square feet have original bungalows built 3 – 5 feet from the rear line, and any addition that crosses the setback needs a variance, not a simple plan check. Documenting the existing non-conforming condition is the only path to approval. Call (472) 248-8213 and we’ll check your parcel against current zoning before you commit to a design.
They don’t remove any LADBS inspections, and they don’t shorten the plan-check path. The factory-finished panels still need a stamped site-built connection to the existing foundation and shear walls, and that work is inspected like any other structural connection. What changes is the framing schedule on site, which can compress a few weeks. We integrate prefab panels into the full permit sequence so the factory order doesn’t outrun the approved plans.
Written by Miles Hartwell, Owner at Sutton ADU Builders, serving Hollywood.
