ADU Company in South San Jose Hills, CA
An ADU in South San Jose Hills runs through LA County’s building system, not a city one, and that single fact changes how permits get pulled, which inspectors show up, and how long your build takes. We’re Lodgewick ADU Builders, the ADU company of the Kingswell family. Most of the homes here are single-story stucco ranches from the 1950s through 1970s on 6,000 to 8,000 square foot lots with detached garages, so garage conversions and backyard ADUs both fit more often than homeowners expect. For a straight answer on your lot, call (254) 602-5618.
Why South San Jose Hills Homes Are Different
South San Jose Hills is unincorporated Los Angeles County. That means your ADU application goes through LA County’s Department of Building and Safety and the Department of Regional Planning – not a city building department. Contractors who do most of their work in West Covina or Walnut get tripped up here because the rules look similar but flow through a different portal with different inspectors. If the team isn’t already enrolled with LACBS, the jurisdictional hand-off alone can add two to three weeks to a build before anyone swings a hammer. That’s not a small detail; it’s the first thing we check on every South San Jose Hills job.
The housing stock matters just as much. These are post-WWII ranch homes, mostly built between the early 1950s and mid-1970s. They sit on lots large enough that a detached ADU in the rear yard doesn’t eat the entire backyard, and detached two-car garages convert cleanly. But the age of the homes means we regularly find 60 to 100-amp electrical panels, original single-pane windows, and galvanized plumbing that won’t pass for habitable space. Upgrading the panel and plumbing is often the real first phase of a South San Jose Hills ADU, and it’s why getting a written scope and price before work starts protects you.
Summer heat is a factor here, too. South San Jose Hills sits in the eastern San Gabriel Valley’s inland heat corridor, regularly reaching 95 to 105 degrees between June and September. That’s consistently hotter than coastal LA, so an ADU’s mini-split or ducted system has to be sized for a heavier cooling load than a contractor might spec for a job 20 miles west. Undersizing the HVAC is the most common mistake we see after the fact, and it’s uncomfortable to fix after drywall is up. Some rear yards closer to the Puente Hills foothills also carry mild slope and drainage issues that need grading review before a foundation can be permitted.
Our Main South San Jose Hills Services
Most South San Jose Hills homeowners call us for one of two things: adding square footage to the main house or converting an existing garage into livable space. A smaller group asks about a detached ADU in the back. All three run through the same County permitting path, and each has its own page on this site with South San Jose Hills-specific pricing and detail.
Home Addition Contractor in South San Jose Hills
Home additions on these ranch homes usually mean extending off the back or side, and on a 6,000 to 8,000 square foot lot there’s often more room than people assume. The two big South San Jose Hills considerations are the existing electrical panel, which often needs upgrading from 60 or 100 amps, and roof tying, because the original homes used framing and truss patterns that have to be matched carefully. We handle the County permit set, the engineering, and the build. Home Addition Contractor in South San Jose Hills has the full breakdown and local pricing.
Garage Conversion Contractor in South San Jose Hills
A detached two-car garage on one of these lots usually converts into a 400 to 480 square foot one-bedroom ADU. The structure is already there, so the question is bringing it up to habitable standard: insulation, drywall, electrical, plumbing, windows, and an HVAC system sized for triple-digit summer days. South San Jose Hills garages from the 1950s and 60s almost never have a foundation designed for living space, so we check the slab and floor drainage early. Garage Conversion Contractor in South San Jose Hills covers costs and the full scope.
ADU Builders in South San Jose Hills
Detached ADUs are a strong fit here because the lots are large and the demand from multigenerational households is real. South San Jose Hills has one of the highest concentrations of multigenerational Latino families in the eastern San Gabriel Valley, and a backyard ADU lets aging parents or adult children live on the same parcel while keeping real separation. We help you choose between stick-built and prefab manufacturers like Cover and Dvele, then manage the County permit, grading, foundation, and utility runs. ADU Builders in South San Jose Hills walks through the process and price ranges.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in South San Jose Hills
We work regularly with Cover, Dvele, and Mighty Buildings prefab systems on South San Jose Hills projects, and we’ve also built with Boxabl for homeowners who want a fast, compact option. Parts and replacement components are ordered through our established supplier accounts, which keeps lead times predictable. See our brands for the full range.
Pricing for ADU Company in South San Jose Hills, CA
| Service | Typical range in South San Jose Hills |
|---|---|
| Garage conversion (attached, 1 bed / 1 bath) | $95,000 – $150,000 |
| Garage conversion (detached, 1 bed / 1 bath) | $120,000 – $195,000 |
| Detached ADU (studio, prefab) | $140,000 – $220,000 |
| Detached ADU (1 bed / 1 bath, stick-built) | $180,000 – $280,000 |
| Detached ADU (2 bed / 2 bath, stick-built) | $260,000 – $390,000 |
| Junior ADU (interior conversion, no kitchen) | $60,000 – $110,000 |
| Home addition (single room, 200 – 350 sq ft) | $85,000 – $150,000 |
| Home addition (primary suite, 300 – 500 sq ft) | $140,000 – $240,000 |
| Electrical panel upgrade (100A to 200A) | $3,500 – $6,500 |
| HVAC sizing upgrade for high-heat corridor | $8,000 – $16,000 |
Prices in South San Jose Hills climb when a 1950s or 60s home needs an electrical panel replacement, plumbing rework, or grading correction before the build starts, and when the HVAC has to be upsized for the inland heat corridor. Every Lodgewick project starts with a written price before any work begins – no change orders at the door, no re-pricing after demo.
Neighborhoods We Serve in South San Jose Hills
We work across South San Jose Hills and the surrounding unincorporated pockets of the eastern San Gabriel Valley. The Countrywood area, the neighborhoods along Valley Boulevard and Amar Road, the blocks near Schabarum Regional Park, and the residential streets off Nogales Street are all regular stops for our crews.
- Countrywood
- Valley Boulevard corridor
- Amar Road neighborhoods
- Schabarum Regional Park area
- Nogales Street residential blocks
Service Area – Cities Near South San Jose Hills
Our South San Jose Hills crews also take on projects in Los Angeles, CA, where County permit patterns overlap in places; Long Beach, CA, where coastal climate calls for different HVAC sizing; Anaheim, CA, where lot patterns and setbacks differ; and Riverside, CA, where the heat corridor pushes cooling loads even higher.
Serving South San Jose Hills, CA - Our Local Coverage Area
We’re based in the South San Jose 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 ADU Company in South San Jose Hills
We work in South San Jose Hills. Scheduling and dispatch for this location are coordinated from our Los Angeles office, and local crews run the South San Jose Hills jobs. Russ Delmar leads the team, and every project gets a written scope and price before work starts.
LA County plan check for a straightforward garage conversion or detached ADU typically runs 4 to 10 weeks depending on review load. Teams not already enrolled with LACBS add time. We’re enrolled, credentialed, and have County inspection experience, which keeps the process moving. Call (254) 602-5618 for a timeline on your specific parcel.
Yes. A live person answers our phones 24/7, so you’ll get a human on the line when you call, not a voicemail loop. We can usually give you a working range on a first call and a written line-item quote after we see the lot and the existing structure. The estimate is free.
For a written price on your South San Jose Hills ADU, garage conversion, or home addition, call (254) 602-5618. The estimate is free, and you’ll get a real person on the line.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What South San Jose Hills Customers Say
"Built a backyard unit for my mother in law. They handled the permits, gave me a real timeline, and stuck to it within a few days. The written price is what we paid, which anyone who's done construction knows is rare."
- Dennis Fairchild"Garage conversion into a studio for our teenager. Honest about what was realistic and what wasn't, finished close to schedule, and cleaned up the site daily."
- Marcus Beaumont"I was nervous about adding on but they walked me through every step and every cost before we started. No surprise change orders halfway through like I'd heard horror stories about."
- Eleanor Pratt