Fast, Reliable Home Addition Contractor Across West Hills
Home additions in West Hills run roughly $180 – $420 per square foot depending on scope, site access, and whether your parcel sits inside a fire hazard zone. A typical room addition on a 1960s ranch runs $85,000 – $160,000, while a second-story addition usually lands between $200,000 – $350,000. We’re Lodgewick ADU Builders, the ADU company of the Kingswell family, and dispatch for West Hills is coordinated from our Los Angeles office with local crews who know these streets, these homes, and the code triggers that come with them. Call (254) 602-5618 for a written price before any work starts.
Why Lodgewick ADU Builders Is West Hills’s Preferred Home Addition Contractor Company
West Hills homeowners call us after another contractor has already let them down. That’s the honest truth of it. What they get with us is different: a written price before demolition, a defined arrival window, and a written guarantee on the finished job. We’ve served West Hills since Russ Delmar started leading our team, building a local reputation on hillside additions and ADU conversions that other builders won’t touch because of the fire-zone paperwork. When you call, a live person answers, 24/7. Not a voicemail, not a chatbot.
Our crews know the difference between a flat Valley parcel off Sherman Way and a hillside lot winding up from Valley Circle Boulevard. That’s not marketing talk. It changes how we frame, what we spec, and what the final price is. We pull fire-hazard zone status before we design anything. That single habit has saved West Hills homeowners tens of thousands of dollars in surprise change orders. Our work is backed by the 365-Day Done Right Promise: if it isn’t right, we come back and make it right, free, for a full year. In writing.
Room Addition Contractor in West Hills
Room addition contractor work in West Hills means opening up a 1950s-to-1970s ranch and making the new space feel like it was always there. Homeowners on lots around Platt Avenue, Highlander Road, and the tracts off Roscoe Boulevard come to us when the kids need a bedroom, an in-law needs a ground-floor suite, or a home office has to stop being the dining table. These additions typically run $85,000 – $160,000, and the spread comes from what we find when the wall comes down.
Inspection Before the Bid
We don’t give a fixed price for a West Hills room addition until we’ve looked behind the drywall. Opening a 1960s ranch routinely turns up cloth-wrapped wiring, undersized or termite-damaged framing, and roof-to-wall junctions with no flashing. Those are real costs. We price them in writing before we touch a stud. If something new appears mid-build, it gets photographed, priced, and approved before work continues. No change orders at the door.
Fire-Zone Sequencing on Hillside Parcels
On hillside parcels abutting the Simi Hills, a room addition can sit inside the City of LA’s Very High Fire Hazard Severity Zone while the exact same floor plan 500 feet downslope does not. Chapter 7A requirements, like ember-resistant attic vents, have to be installed before the roof deck is sheeted. Get the sequencing wrong and you’re tearing out finished work. We pull the hazard-zone map before designing a single wall.
Second Story Addition Contractor in West Hills
A second story addition contractor in West Hills answers a specific question: can this 1960s ranch hold a second floor? The answer on most West Hills lots is yes, because the post-WWII homes here were built on 8,000 – 12,000 sq ft parcels with foundations that, while they need evaluation, often have capacity to spare. Second story additions in West Hills generally run $200,000 – $350,000, and the single biggest cost driver is what the engineer finds at the foundation and shear-wall level.
Structural Reality of 1960s Ranches
Most of the ranch homes built across West Hills between the mid-1950s and 1970s used 2×4 wall framing and standard footings, not the 2×6 and engineered shear assemblies a second story requires. An engineer has to sign off before you can set a new floor on top. We handle that, but it means the budget has to include structural upgrades, not just lumber and drywall. We put those allowances in the contract up front, so you see the real number before we start.
Heat Gain and Santa Ana Wind
A second-story addition on a West Hills lot catches the full force of summer afternoons that regularly hit 100 – 108°F and the dry Santa Ana winds that sweep down from the Simi Hills each fall. Out-of-area builders size HVAC for a generic Valley climate and miss this. We spec mini-split systems sized for actual heat gain and wall assemblies that insulate against wind-driven heat. That decision alone changes how those upper rooms feel in August and October.
Trusted Brands We Service in West Hills
We work directly with established prefab and materials brands that fit West Hills lots and the local fire-hazard requirements. For West Hills homeowners who want a faster path than stick-built, we install and finish units from Abodu, Cover, and Dvele. For the exterior cladding on fire-zone parcels, we spec James Hardie ignition-resistant siding as standard, not an upgrade. Because we stock local parts and coordinate material deliveries from our Los Angeles office, turnaround on these builds stays tight, even when a hillside lot requires Chapter 7A ember-resistant vents and Class A roofing.
Common Home Addition Contractor Problems We See in West Hills Homes
- Hidden wiring and framing damage in 1950s – 70s ranches. Cloth-wrapped wiring, termite-eaten top plates, and roof-to-wall junctions with no flashing are routine finds behind the drywall of West Hills ranches. We price them after inspection, not after demolition.
- Chapter 7A fire-zone requirements missed by out-of-area builders. Contractors who don’t pull fire-hazard zone status design the addition first and discover Class A roofing, ember-resistant vents, and ignition-resistant siding after the roof is sheeted. That mistake adds $15,000 – $30,000 in change orders we never cause because we check first.
- Undersized HVAC that can’t handle 105°F summer days. Builders from outside the western Valley size cooling for a generic climate. We size mini-splits for the specific heat gain of a West Hills hillside or flat-lot parcel.
- Fixed-price bids that fall apart on day three. A fixed-price quote built without an inspection-first allowance stalls when the wall opens and the framing is worse than expected. Our contracts include written allowances for exactly what these homes hide.
Pricing for Home Addition Contractor in West Hills, CA
Here are real numbers for the West Hills market. A room addition generally runs $85,000 – $160,000. A second story addition lands between $200,000 – $350,000. A bathroom addition on a 1960s ranch runs $45,000 – $85,000. A garage conversion into livable space runs $60,000 – $120,000. A bump-out taking a kitchen or family room out 8 to 15 feet runs $50,000 – $110,000. A sunroom addition runs $40,000 – $90,000 depending on glazing and foundation work. What moves the number: fire-hazard zone status, framing condition, foundation capacity, and roof geometry. Call (254) 602-5618 for a written line-item quote. Estimates are free, and the price you get is the price you pay.
We Also Serve Cities Near West Hills
Our crews cover the western San Fernando Valley beyond West Hills. If you’re in Canoga Park, Woodland Hills, Calabasas, or Chatsworth, the same Home Addition Contractor team handles your project under the same written guarantee. Visit our Home Addition Contractor in West Hills page for local project examples and pricing specific to the area.
Serving West Hills, CA - Our Local Coverage Area
We’re based in the West 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 West Hills
Only if your parcel sits inside the City of LA’s Very High Fire Hazard Severity Zone, which covers significant hillside portions of West Hills abutting the Simi Hills, particularly after the Woolsey Fire demonstrated the risk. On those parcels, any new detached addition, garage conversion, or substantial remodel must meet Chapter 7A standards: Class A roofing, ember-resistant vents, ignition-resistant siding, and fire-rated eaves. This can add $15,000 – $30,000 to a project, and it must be sequenced correctly from the start. Call (254) 602-5618 and we’ll pull your parcel’s fire-zone status before we design anything.
We find cloth-wrapped wiring, termite-damaged top plates, missing flashing at roof-to-wall junctions, and 2×4 framing that was fine in 1965 but doesn’t meet current code once a wall is open. These are not rare exceptions in West Hills; they’re the norm. That’s why inspection comes before the bid, and why our contracts include written allowances for exactly what these homes hide.
We price the problem in writing and get your approval before we touch it. On a hillside lot off Valley Circle Boulevard near the Simi Hills edge, we opened the rear wall of a 1960s ranch and found cloth-wrapped wiring, termite-eaten top plates, and a roof-to-wall junction with no flashing, plus Chapter 7A ember-resistant attic vents that had to be set before the roof deck was sheeted. Our tech photographed each condition, priced the framing repair, the rewire to current code, and the new fire-rated assembly in writing, and the homeowner approved before we touched a single stud. The finished addition is 2×6-framed, mini-split conditioned for 105°F summer afternoons, and clad in James Hardie ignition-resistant siding.
Yes, on most West Hills lots. The post-WWII ranch homes here sit on 8,000 – 12,000 sq ft parcels and their foundations, while they need an engineer’s evaluation, often have capacity for a second floor. The project will require structural upgrades, shear wall assemblies, and re-framing to 2×6. Budget $200,000 – $350,000. We’ll tell you if your specific foundation can carry it before you spend a dollar on plans.
We install and finish units from Abodu, Cover, and Dvele, and we spec James Hardie siding as standard on fire-zone parcels. The right brand depends on your lot, your timeline, and your fire-hazard zone status. We’ll match the brand to the site, not the other way around. Call (254) 602-5618 for a free estimate and we’ll walk you through the options in plain English.
Written by Russ Delmar, Owner at Lodgewick ADU Builders, serving West Hills under the 365-Day Done Right Promise.