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 Studio City
A home addition in Studio City typically runs $180 – $425 per square foot for a stick-built room, and $140 – $310 per square foot for a prefab or panelized addition. Most Studio City projects we bid land between $95,000 and $340,000 total, depending on foundation work, fire-zone detailing, and finish level. You’re reading this because you need a straight answer on what a bedroom or sunroom addition will actually cost and take. That’s exactly what this page gives you. Our crews work throughout Studio City every week, from the flats off Ventura Boulevard up into the hills above Fryman Canyon. If you want to talk through your property, call (903) 568-7222 and a live person picks up.
Why Benson ADU Builders Is Studio City’s Preferred Home Addition Contractor Company
Nobody in Studio City wants to sit through a three-week bid cycle only to get a number that shifts the day permits clear. That’s why every project we scope gets a written price before any work starts. The quote you receive covers the full scope, the materials, and the schedule. If something changes, you know before it changes, not when the invoice lands. Our Home Addition Contractor team has walked dozens of Studio City properties from Colfax Meadows to Silver Triangle, and we’re familiar with what LADBS plan check will actually flag on your specific street.
We care about getting the details right because this is a hundred-thousand-dollar decision, not a service call. Our technicians are background-checked and uniformed, so when someone walks onto your property on Arch Drive or Dilling Street, you know exactly who they are. Troy Eastman set the standard here: written guarantees on every job, a 365-Day Done Right Promise, and a free second visit if any covered repair fails within the year. Homeowners working near Carpenter Avenue Elementary or off Radford Avenue get the same treatment as anyone else: a real price, a real schedule, and a phone number that a person answers around the clock.
We’re also the only contractor in this market that pairs access to leading prefab brands like Abodu, Cover, and Dvele with The Relay Visibility Guarantee. That means real-time tracking, digital invoices you can pay by link, before-and-after photos, and a written price before a single shovel turns. Studio City homeowners shouldn’t have to choose between a quality build and a transparent process.
Bedroom Addition Contractor in Studio City
A bedroom addition in Studio City means adding permitted, conditioned square footage for a family member, a home office, or a rental-friendly en-suite. Most bedroom additions here run $110,000 – $280,000 depending on whether you’re bumping out on a slab-on-grade lot along the flats or extending over a hillside where caisson or pier foundations come into play. The first step is a scope review that looks at your lot’s slope, fire-zone classification, and existing foundation type. Skip that step and you’re pricing a fantasy.
What Adds Real Cost on a Bedroom Addition
The big variables we see in Studio City are foundation type, fire-rated assembly requirements, and finish level. A primary suite with custom millwork and a freestanding tub costs far more per foot than a simple guest bedroom with a standard bath. If your parcel sits in a Very High Fire Hazard Severity Zone, expect Class A roof coverings and ember-resistant vents to be code-mandated.
How the Build Actually Goes
Bedroom additions start with measured as-builts and a conceptual plan from our design team. That plan goes through LADBS plan check, which for most Studio City additions takes 6 to 14 weeks depending on their current queue and whether your property has any hillside or WUI overlays. Construction on a simple single-story bedroom addition runs roughly 4 to 6 months, with the framing, roofing, and weatherproofing phases happening in the first two.
Sunroom Addition in Studio City
A sunroom addition in Studio City is a glazed, conditioned or three-season room that ties into your existing roofline and lets in light without the full thermal envelope of a conventional room. Expect to pay $65,000 – $190,000 for a permitted sunroom here, depending on whether you choose a prefab panel system or a fully site-built custom design. Studio City homeowners love sunrooms off the kitchen or primary bedroom, especially on south-facing lots near Moorpark Street where the afternoon light is unreal.
Prefab Panels vs. Site-Built Framing
With brands like Abodu and Cover, a panelized sunroom can cut 4 to 8 weeks off the framing timeline because wall panels arrive pre-cut with sheathing and openings already fabricated. Site-built framing gives you more flexibility in ceiling height and window placement. Both routes still need the same LADBS plan check, the same foundation permit, and the same fire-zone detailing if you’re in the hills.
What Most People Overlook
Glazing ratios are the big one. A sunroom with floor-to-ceiling glass on a west-facing wall will cook in August unless you spec low-E glazing and plan for HVAC load. We also flag drainage: sunrooms on sloped Studio City lots need proper swales and downspout extensions or you get water wicking into the new foundation at the first heavy rain. We handle all of that in the initial scope, not after you’ve signed.
Trusted Brands We Service in Studio City
We’re authorized to build with Abodu, Cover, Dvele, and James Hardie products, which means Studio City homeowners get curated options instead of whatever our supplier happened to have in the yard that week. James Hardie fiber-cement siding and sheathing appears on nearly every hillside addition we build in Studio City because it meets Class A fire-rated assembly requirements without looking institutional. When you choose a Cover or Dvele panel system, we manage the factory order, the delivery, and the local site work, so you’re never chasing a shipment through the Port of Los Angeles on your own. Parts and warranty support are handled through our Los Angeles dispatch office, and crews serving Studio City carry the common consumables on the truck.
Common Home Addition Contractor Problems We See in Studio City Homes
- Hillside foundation surprises. Much of Studio City south of Ventura Boulevard slopes hard toward the Valley floor. Lots that look buildable from the street often need retaining walls, caissons, or grade beams once soils reports come back. That’s a $25,000 – $60,000 line item if it wasn’t in your original quote.
- Fire-zone redesigns after plan check. If your addition sits in a Very High Fire Hazard Severity Zone, LADBS will require Class A roof assemblies, ember-resistant vents, and specific eave details. Homeowners who designed without those often pay for a full resubmission.
- LADBS plan-check timelines. Studio City is in the City of Los Angeles, so every addition goes through LADBS, not a smaller county department. Nobody can honestly promise two-week plan checks here. Budget 6 to 14 weeks, more if corrections come back.
- Old framing that doesn’t match the new tie-in. Studio City homes built in the 1940s and 1950s often have framing dimensions and foundation types that aren’t compatible with modern shear-wall requirements. We identify these at scope time so the structural engineer can detail the connection before demo starts.
Pricing for Home Addition Contractor in Studio City, CA
For planning purposes, here’s what Studio City homeowners should expect as of 2026. A simple bump-out bedroom addition: $110,000 – $175,000. A primary suite with bathroom: $190,000 – $280,000. A prefab or panelized sunroom: $65,000 – $140,000. A fully custom site-built sunroom with steel and glass: $150,000 – $190,000. Foundation upgrades for hillside or expansive clay sites add $20,000 – $60,000 depending on the soils report. LADBS plan check, structural engineering, and permit fees typically run $8,000 – $22,000 on a single-story addition. Every Benson ADU Builders quote is a written, line-item price before work starts. Call (903) 568-7222 to schedule a free estimate on your Studio City project.
We Also Serve Cities Near Studio City
Our Home Addition Contractor in Studio City service area extends to North Hollywood, Van Nuys, West Hollywood, and Sherman Oaks. If your property sits near the Studio City border, we’ll confirm which jurisdiction applies to your address before quoting. LADBS handles most of these areas, but unincorporated pockets exist.
Serving Studio City, CA - Our Local Coverage Area
We’re based in the Studio City 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 Studio City
Yes, if your parcel sits in a Very High Fire Hazard Severity Zone, your addition must use Class A fire-rated roof coverings, ember-resistant vents, and specific eave and soffit detailing. Much of Studio City’s hillside housing stock falls inside these zones. We check your address’s WUI status during the scope review and factor the required assemblies into your quote. Call (903) 568-7222 for a free look at your property’s specific fire-zone obligations.
The Los Angeles Department of Building and Safety (LADBS) reviews and permits all home additions within Studio City, since the neighborhood sits inside the City of Los Angeles. Their plan-check timeline for residential additions currently runs 6 to 14 weeks depending on complexity and correction rounds. We manage the full submittal, corrections, and inspection sequence on your behalf.
A single-story bedroom addition in Studio City typically takes 4 to 6 months of construction after permits are issued. A prefab or panelized sunroom can finish in 3 to 5 months. Plan check adds 6 to 14 weeks before construction begins. The total timeline from first call to final inspection is often 8 to 12 months, and we map all of that out in your written schedule.
They can, with the right planning. Abodu, Cover, and Dvele panel systems work well on flat or gently sloped Studio City lots, and they often shave weeks off the framing phase. Hillside sites with complex foundation requirements may need more site-built engineering, but we’ve installed panel additions throughout the neighborhood. We’ll tell you honestly which route fits your property before you commit to a design.
Foundation work is the biggest trigger: if soils reports reveal fill, expansive clay, or slope instability, the foundation scope and price change. Fire-zone detailing that wasn’t in the original design is another. Finish upgrades like moving from standard drywall to level-five smooth or swapping standard windows for custom glazing also shift the number. At Benson ADU Builders, every change order is written, priced, and approved by you before work continues. Call (903) 568-7222 for an exact quote on your Studio City addition, estimates are always free.
What a Studio City Home Addition Actually Looks Like From Start to Finish
We recently finished a primary-bedroom and sunroom addition for a family on the south side of Ventura Boulevard near Laurel Canyon Boulevard in Studio City. Because the property backs onto a steep, brush-covered slope, we had to detail the new walls and roof with noncombustible Class A assemblies and ember-resistant vents rather than the standard open-eave soffit the homeowner originally wanted. We framed and wrapped the addition in James Hardie fiber-cement siding and sheathing so the final exterior complied with the local WUI requirements without a redo.
That project is a good example of what Studio City homeowners should expect: a design phase, an LADBS plan check, a foundation scope that accounts for slope, and a winter rainy-season window where roofing and waterproofing have to move faster. A good contractor identifies all of that before demo day. A mediocre one discovers it mid-project and sends you a change order.
Most Studio City additions start with measured drawings and a soils report if you’re on a hillside. The architectural plans then go to LADBS with structural calculations. We handle corrections. Once permits clear, we schedule the foundation, framing, roofing, mechanical, plumbing, electrical, insulation, drywall, finishes, and final inspection. You get photo updates at each phase. The final walkthrough happens with you, not without you. If anything isn’t right, the 365-Day Done Right Promise covers it in writing.
Written by Troy Eastman, Owner at Benson ADU Builders, serving Studio City.
