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
Adding space to a Studio City home usually means one of two things: a hillside lot south of Ventura Boulevard with decomposed granite underfoot, or a 1940s ranch with framing and wiring that hasn’t been touched in seventy years. Both are familiar ground for us. Seedling ADU Los Angeles builds room additions, second-story additions, and garage additions across Studio City, and we price the job in writing before any work starts. If you’re weighing a bathroom or bedroom addition in Studio City, call (213) 449-7136 and we’ll walk you through what your specific lot and house will actually require. Not a generic estimate. A written price based on what’s under your walls and under your foundation.
Why Seedling ADU Los Angeles Is Studio City’s Preferred Home Addition Contractor Company
Studio City homeowners call us because we build here, not because we’re squeezing the Valley into a template. Ben Ortega, who leads Seedling ADU Los Angeles, trains our crews to read Studio City lots before reading blueprints. That means we know when a flatland quote is dangerous, when a hillside addition under $200,000 is optimistic, and when a garage conversion is the smarter dollar than a bump-out. Our Home Addition Contractor team works from a fixed process: inspection first, written allowances for code upgrades, and no change order that hasn’t been priced and approved by you in writing.
Every job is backed by the 365-Day Done Right Promise. If something isn’t done right, we make it right. That’s not a phrase on a flyer. It’s in the contract. And the crew that shows up at your Studio City home is background-checked, uniformed, and held to the Cedarwell Care Promise: shoe covers and drop cloths inside your home, pet-safe products where there’s a choice, a photo of the clean-up before the crew leaves, and a live person answering the phone 24/7 if you have a question mid-build.
We coordinate scheduling from our Los Angeles office, and our crews serve Studio City directly. When you call, you reach a person. When we say we’ll be there, we’re there.
Bathroom Addition Contractor in Studio City
A Bathroom Addition Contractor in Studio City is dealing with a specific kind of house: most bathrooms added to 1940s and 1950s ranches here mean cutting into exterior walls that were never built to current shear standards. In Studio City, a bathroom addition typically runs $45,000 to $90,000 depending on whether you’re adding onto a ground-floor wall or going up. Ground-floor bathroom additions on flat lots north of Ventura Boulevard come in at the lower end. Hillside bathrooms south of Ventura that hit decomposed granite during foundation work come in higher.
What a Studio City bathroom addition includes
Beyond the tile and fixtures, you’re paying for a new foundation segment, waterproofing, and possibly a shear-wall retrofit once the inspector sees the original framing. We write those as allowances in the contract, so they’re priced before demolition, not discovered after. You see the number before we touch the wall.
When the old plumbing reroute gets complicated
On a 1950s Studio City ranch, the original cast-iron drain lines are often at the end of their life. Our inspection flags that before we open the floor. If the drain needs replacing, that’s a written line item, not a phone call you get mid-project asking for more money.
Bedroom Addition Contractor in Studio City
A Bedroom Addition Contractor in Studio City has to answer two questions before anyone swings a hammer: what’s the soil holding up the new foundation, and what’s inside the wall we’re tying into. In Studio City, a ground-level bedroom addition runs $65,000 to $130,000. The low end assumes a flat lot and clean framing. The high end is hillside work south of Ventura Boulevard where decomposed granite forces over-excavation and possibly a retaining wall. That’s not a budget killer if it’s priced from the start. It’s only a budget killer when the contractor quotes you flatland rates and discovers rock after the crew shows up.
The framing reality on older Studio City homes
We opened up a 1952 ranch off Dilling Street for a bedroom addition and found original cloth-wrapped wiring and undersized 2×4 rafters. Our inspection flagged the code-triggered panel upgrade and shear-wall retrofit, and we priced both as written allowances before demolition so the owner never faced a surprise change order. That’s the difference between a quote and a plan. We give you the plan.
Kids, pets, and the daily work routine
A bedroom addition means a crew near where your family sleeps. We sequence the noisy work around your schedule, use quiet tools where we can, and leave the home clean at the end of every day. The Cedarwell Care Promise isn’t a bonus. It’s the minimum. Shoe covers, drop cloths, and a clean-up photo before we leave.
Trusted Brands We Service in Studio City
Some Studio City homeowners want site-built framing. Others want a prefab module from Abodu or Cover, or a custom enclosure wrapped in James Hardie siding that holds up to the hot summers and Santa Ana wind. We work with all of them. We install and finish these systems correctly, and we stock the common trim, flashing, and tie-in materials locally so a Studio City project doesn’t stall waiting on a part. You choose the brand that fits your lot and budget. We handle the rest.
Common Home Addition Contractor Problems We See in Studio City Homes
- Decomposed granite underfoot south of Ventura Boulevard. A flatland contractor quotes standard excavation. Our crew hits rock a few feet down. The solution is over-excavation and a compacted base designed for the soil we actually find, priced as an allowance before we dig.
- Cloth-wrapped and knob-and-tube wiring hiding in 1940s walls. Once we open a wall for an addition, Los Angeles code requires the exposed wiring be brought to current standard. If it isn’t in the budget, that’s a surprise no homeowner wants. We inspect and price it in writing first.
- Rotted sill plates and undersized rafters on original 1950s framing. The addition is new; the wall we tie into is not. We check the load path before we commit to a design, and we write the repair into the contract.
- Hillside slope-density and riparian setback rejections at plan check. Studio City has rules that don’t apply in North Hollywood. Additions near the Los Angeles River corridor or on sloped lots need setbacks and density calculations done right the first time. We plan for the rules before the city sees the drawings.
Pricing for Home Addition Contractor in Studio City, CA
Here’s what Studio City additions cost in real dollars. A bathroom addition runs $45,000 to $90,000. A bedroom addition runs $65,000 to $130,000. A second-story addition starts around $180,000 and can exceed $300,000 depending on the existing foundation and hillside conditions. What moves the number: soil type south of Ventura Boulevard, the age of your wiring and framing, whether you’re on a flat lot or a hillside, and whether the city requires a retaining wall or riparian setback adjustment. We give you a written price before any work starts, with allowances for the unknowns we can predict from the inspection. Call (213) 449-7136 for a free estimate. You’ll get the real number for your house, not a guess.
We Also Serve Cities Near Studio City
While this page is built for Home Addition Contractor in Studio City, our crews also take projects in North Hollywood, Sun Valley, Marina del Rey, and South Pasadena. The same written pricing, the same 365-Day Done Right Promise, the same Care Promise crew standards. Call us and we’ll tell you what your project needs, wherever your lot sits.
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
It adds real excavation cost. Decomposed granite is rock-like material that sits a few feet below the surface in the hillside neighborhoods. A standard footing quote assumes soil you can dig with a standard excavator. When the rock shows up, you need over-excavation, sometimes a rock breaker, and a thicker compacted base. That can add $8,000 to $25,000 depending on the lot. We price it as a written allowance so it’s in your contract before we start. Call (213) 449-7136 and we’ll check your specific lot.
The short answer: any wiring, framing, or shear wall the inspector can now see must meet current code. That means replacing cloth-wrapped or knob-and-tube wiring in the opened area, adding shear plywood to original stud walls, and often upgrading your electrical panel if it can’t handle the new load. On a bedroom addition, expect $6,000 to $18,000 in triggered upgrades. We inspect first, write them into the contract, and you approve the number before demolition. No surprises, because we looked before we swung.
Sometimes, yes. If your lot is on a slope and the addition cuts into the grade, a small retaining wall may be required to hold the soil and satisfy the hillside review. A 3-foot wall on a compact lot can run $4,000 to $12,000. The time to discover this is at the design stage, not after excavation. That’s why our Studio City estimates start with a site walk, not a phone quote.
We open the wall, we find it, and we fix it under a pre-approved written allowance. Rotted sill plates are common in Studio City homes built before modern flashing and moisture barriers. Replacing a section of sill plate runs $800 to $2,500 depending on length and access. We photograph it, show you, get your approval on the written price, and then fix it. The work doesn’t stall over a surprise because the allowance already exists in your contract.
Yes. Parcels near the Los Angeles River corridor fall under riparian setback rules that are stricter than standard Valley zoning. A bedroom addition that works on a mid-block lot in the flats may need a larger rear setback or a drainage plan if the lot is within the river overlay. Getting this wrong means a plan-check rejection and a redesign fee. We run the setback check before we draw anything you pay for.
Written by Ben Ortega, Owner at Seedling ADU Los Angeles, serving Studio City and the surrounding Valley communities.
