Fast, Reliable Home Addition Contractor Across Woodland Hills
Adding square footage to a Woodland Hills home usually costs between $180,000 and $450,000 depending on whether you’re building out, building up, or converting a garage. Plan on roughly 4 to 8 months from first permit submittal to final inspection. That’s the honest answer, and it’s the kind of answer we give before we ever ask you to sign anything. Lodgewick ADU Builders works on additions throughout Woodland Hills, from the flatland ranches along Ventura Boulevard up into the foothills south of the 101. Call (254) 602-5618 and we’ll walk you through what your specific lot and your specific house will actually require.
We’re the ADU and home addition company of the Kingswell family, and every project we take runs under The Kingswell Guarantee. That means a written price before work starts, a real arrival window, a clean job site, and a written guarantee delivered before we drive the first nail. If something isn’t done right, we come back and make it right, free, inside 365 days. Russ Delmar leads our Woodland Hills work, and he’ll be the one making sure the number we quote you is the number you pay.
Why Lodgewick ADU Builders Is Woodland Hills’s Preferred Home Addition Contractor Company
Woodland Hills isn’t one market. It’s two. The flatlands north of Ventura Boulevard are full of 1950s and 1960s ranch homes on big lots. Drive south toward Mulholland and the properties climb into the Santa Monica Mountains, where the fire hazard zone changes everything about how an addition gets permitted and what it costs. A Home Addition Contractor who only knows the Valley side will give you a number that falls apart the moment LADBS plan check sees a hillside address. We know both tiers because we build in both.
Homeowners in Woodland Hills don’t want a sales pitch. They want to know the price won’t move, the crew will show, and someone will answer the phone when they have a question at 8 p.m. on a Tuesday. That’s what we do. A live person answers every call, 24/7. Not a voicemail. Not a chatbot. Our technicians are background-checked and uniformed, so when someone walks onto your property you know exactly who they are. And the 365-Day Done Right Promise is in writing on every single project. If the work fails within the guarantee period, we return free. No argument, no fine print.
Second Story Addition Contractor in Woodland Hills
A Second Story Addition Contractor in Woodland Hills is looking at a different animal than one working the flat Valley floor. Adding a second story to a 1958 ranch near El Camino Real means opening load-bearing walls, verifying the existing foundation can carry another floor, and usually upgrading the original 100-amp panel before LADBS will sign off. In the foothills south of Ventura, you’re also inside the Very High Fire Hazard Severity Zone, which pulls Chapter 7A fire-resistant construction requirements into the scope. A second-story addition in Woodland Hills typically runs $250,000 to $450,000 depending on footprint, roofline complexity, and whether the hillside VHFZ overlay applies to your lot.
Foundation and Framing Reality Check
Most Woodland Hills ranch homes were never engineered to hold a second floor. We send a structural engineer out before we quote the framing package, because guessing at foundation capacity is how people end up with a cracked slab and a stop-work order. If the existing footings won’t carry the load, we write that into the plan set and the price before work begins. No surprises later.
Fire Zone Compliance on Hillside Lots
If your property sits in the VHFZ, your second-story exterior has to meet Chapter 7A: ember-resistant vents, ignition-resistant cladding, and Class A roofing. This isn’t optional, and it isn’t cheap. The materials alone typically add $20,000 to $35,000 before any framing goes up. We flag it on the first site visit so the quote you receive is the quote you build from.
Garage Addition Contractors in Woodland Hills
Garage Addition Contractors in Woodland Hills do two distinct jobs: converting an attached garage into living space, or extending a detached garage into a full ADU with its own kitchen, bath, and meter. Detached garage additions work well here because Woodland Hills flatland lots frequently run 10,000 to 15,000 square feet, which gives you room to build out without eating the yard. A converted attached garage in Woodland Hills typically runs $120,000 to $200,000. A full detached garage ADU with a new foundation runs $180,000 to $300,000.
Slab Settlement and Panel Upgrades
Garage slabs in this part of Woodland Hills settle. That’s what 60 years of Valley heat and clay soil does. We check the slab level and the bottom plates before quoting a conversion, because a settled slab means framing repair you don’t want to discover halfway through. The original 100-amp panel is another common issue. LADBS won’t approve an ADU kitchen and mini-split on a 100-amp service. A 200-amp upgrade gets priced into the contract from day one.
Insulation and Climate Sizing
Woodland Hills routinely hits 110°F in September with no marine layer to cool things off overnight. A garage conversion with thin insulation and an undersized mini-split becomes an oven by 3 p.m. We size HVAC for the actual climate here, not for a generic LA average. That means more aggressive cooling capacity and real attic insulation. It costs more up front. It’s the difference between a room you use and a room you avoid.
Trusted Brands We Service in Woodland Hills
Our Woodland Hills clients build with proven prefab and material systems. We work regularly with Abodu and Cover for detached units, Dvele for high-performance homes in the hillside fire zones, and Mighty Buildings for panelized construction that speeds up framing on tight timelines. We stock common replacement parts and have direct relationships with the manufacturers, which means when something needs to be reordered or warrantied, we’re not waiting on a supply-house middleman. For homeowners in Woodland Hills, that translates to faster turnaround and cleaner project timelines.
Common Home Addition Contractor Problems We See in Woodland Hills Homes
- Flat Valley quotes applied to hillside lots. A builder quotes you a number based on a flatland Valley permit path. Then LADBS plan check sees your hillside parcel inside the VHFZ and suddenly Chapter 7A materials and ember-resistant vent assemblies add $20,000 to $35,000 to the envelope. We identify your fire zone on the first visit, so this never comes up as a surprise change order.
- Original 100-amp panels and aging sewer laterals. The 1950s through 1970s ranch homes that dominate Woodland Hills were built when 100 amps was plenty and sewer laterals were clay pipe. An addition with a kitchen or HVAC will push the panel past code, and a cracked clay lateral will fail inspection. Both need to be scoped and priced before you commit.
- Undersized HVAC on garage conversions. Builders who work mostly coastal LA jobs spec mini-splits for a mild climate. Woodland Hills is the hottest part of greater Los Angeles. An undersized system in a converted garage leaves you with a 95° room in September and a conversation about why your new space doesn’t work.
- Walls opened without a pre-inspection allowance. Opening a 1960s ranch wall can reveal cloth-wrapped wiring, termite-damaged framing, or rotted bottom plates behind the stucco. A quote that doesn’t include a written allowance for these conditions is a quote that will change at the door. We inspect first, write allowances into the contract, and price any discovery in writing before touching it.
Pricing for Home Addition Contractor in Woodland Hills, CA
Here’s where the rubber meets the road. A room addition on a flatland Woodland Hills ranch runs $180,000 to $300,000 depending on whether it’s a bump-out or a full wing with a bath. A second-story addition runs $250,000 to $450,000. A garage conversion runs $120,000 to $200,000, and a detached garage ADU runs $180,000 to $300,000. Hillside lots inside the VHFZ add $20,000 to $35,000 for Chapter 7A compliance, and original 100-amp electrical panels typically add $8,000 to $15,000 for a 200-amp service upgrade. These are Woodland Hills numbers, not national averages. Call (254) 602-5618 for a free estimate, and we’ll put your specific project’s price in writing before any work starts.
Key Takeaways:
- Woodland Hills additions run $120,000 to $450,000 depending on scope and whether your lot is in the hillside fire zone.
- Chapter 7A fire-resistant construction adds $20,000 to $35,000 on VHFZ properties, typically flagged by LADBS plan check.
- Original 100-amp panels and aging sewer laterals commonly require upgrade before an addition passes inspection.
- Every Lodgewick project comes with a written price before work starts and a 365-Day Done Right Promise in writing.
We Also Serve Cities Near Woodland Hills
Lodgewick ADU Builders serves the entire west Valley corridor. In addition to Woodland Hills, our crews work regularly in Canoga Park, Topanga, Tarzana, and West Hills. The same written pricing, the same Kingswell Guarantee, and the same live-person phone answer apply across the whole service area. Dispatch and scheduling are coordinated from the Los Angeles office, but the crews who build your project are local and know the Valley’s permit offices, fire zones, and soil conditions.
Serving Woodland Hills, CA - Our Local Coverage Area
We’re based in the Woodland Hills 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 Woodland Hills
Your neighbor’s quote likely doesn’t account for the Very High Fire Hazard Severity Zone overlay that covers much of Woodland Hills’s hillside terrain. If your property sits inside the VHFZ, LADBS requires Chapter 7A fire-resistant construction: ember-resistant vents, ignition-resistant cladding, and Class A roofing. That adds $20,000 to $35,000 to the envelope before any interior work begins, and plan check flags these applications at a high rate. Flatland Valley builders often miss it entirely. Call (254) 602-5618 and we’ll check your property’s fire zone before we quote anything.
The two most common discoveries are original 100-amp electrical panels and cloth-wrapped wiring inside walls that have never been opened since the Eisenhower era. We also frequently find sill plates that have rotted where stucco met a settled slab, and aging clay sewer laterals that fail inspection once a new bathroom or kitchen is added. We document all of it with photos and issue a written change order before adding any new framing.
We stop work, document the condition with photos, and write a change order with a specific dollar amount and a specific scope of repair. You approve that number in writing before we proceed. That’s The Kingswell Way. On a 1962 ranch off Canoga Avenue, our crew opened an exterior wall for a garage addition and found the original 100-amp panel feeding cloth-wrapped wiring, plus a garage slab that had settled and rotted the bottom plate. We stopped, documented everything, issued a written change order for the 200-amp service upgrade and sill repair, and got written approval before adding a single new stud. The job closed clean on the first LADBS inspection.
Yes. Woodland Hills routinely records the highest temperatures in the LA metro, with September heat events pushing past 110°F and no marine layer to provide overnight relief. A mini-split sized for a westside build will leave your new room unusable in summer. We size HVAC for Woodland Hills’s actual climate, which means more aggressive cooling capacity and proper attic insulation in converted garages. Call (254) 602-5618 to get a free estimate that accounts for the real heat load on your lot.
In most cases, yes, and Woodland Hills is one of the best places in LA to do it. Flatland lots here frequently exceed 10,000 to 15,000 square feet, which gives you room to build a detached garage ADU without sacrificing the entire backyard. The caveats are the same ones that apply to any Woodland Hills addition: hillside lots in the VHFZ trigger Chapter 7A requirements, and original electric and sewer infrastructure may need upgrading before LADBS signs off. We’ll check zoning, fire zone, and infrastructure on the first visit.
Written by Russ Delmar, Owner at Lodgewick ADU Builders, serving Woodland Hills since 2010.
Ready to talk numbers? Call (254) 602-5618 to schedule your free estimate. We’ll give you a written price before any work begins, and we’ll put the 365-Day Done Right Promise in writing on your project. A live person answers every call.