







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Los Feliz, CA
Adding an ADU, garage conversion, or home addition in Los Feliz means working with hillside lots, older homes, and strict city rules. We’re Seedling ADU Builders, and we handle all three. Most Los Feliz properties were built between the 1920s and 1950s on slopes that leave little flat space to work with, so every project starts with careful site planning, not guesswork. You’ll get a written price before anything starts, a crew that protects your home during the build, and a 365-Day Done Right Promise on the finished project. Call (213) 449-7136 to talk through your lot.
Why Los Feliz Homes Are Different

Los Feliz isn’t one kind of neighborhood. The flats north of Los Feliz Boulevard feel different from the canyon-adjacent streets below Griffith Park, and the hillside pockets east of Vermont Avenue bring their own set of rules. Many homes sit on lots with 15 to 40 percent grades, which means standard foundation plans often don’t apply. The Los Angeles Hillside Ordinance adds grading reviews, retaining wall requirements, and drainage studies that flat-lot ADUs never trigger. We’ve seen straightforward garage conversions stall for months because the hillside review flagged a sloped driveway and a shared retaining wall that hadn’t been documented.
Historic preservation is the other layer. A meaningful share of Los Feliz sits inside Historic Preservation Overlay Zones, where new structures must match the massing, rooflines, window patterns, and exterior materials of the original home. A Spanish Colonial Revival house on a hill won’t get approval for a flat-roofed box in the backyard. Sometimes that means stucco with a red tile accent, sometimes vertical siding and a gabled end. We bring in local architects who’ve presented to the HPOZ boards enough times to know what passes. The climate plays a role too: hot, dry summers demand ventilation and shaded windows; winter rains make slope drainage and erosion control non-negotiable before concrete goes in.
Our Main Los Feliz Services
Most Los Feliz homeowners call us for one of three things: adding space to the existing house, converting an underused garage into livable square feet, or building a detached ADU at the back of the lot. Each has its own permits, review process, and site work here.
Home Addition Contractor in Los Feliz
A home addition on a Los Feliz hillside is a different animal than one on a flat lot. Slope, drainage, and foundation engineering drive the first phase. Your Spanish Revival or Mid-Century home’s roofline has to integrate with the new space, and in HPOZ zones the materials and window proportions need review board sign-off. We handle the full scope, from structural plans through final inspection, with shoe covers and drop cloths inside your living space throughout. Explore what’s involved on our Home Addition Contractor in Los Feliz page.

Garage Conversion Contractor in Los Feliz
Los Feliz garages are often too small, sloped, or oddly shaped for modern cars, which is exactly why homeowners ask us to convert them. The catches here: many older garages were built on slabs too thin for habitable space, and the city requires floor elevation changes when the driveway slopes toward the structure. The Los Angeles Hillside Ordinance can also demand drainage corrections on the exterior. We check what your specific structure needs before quoting a number. Find details on our Garage Conversion Contractor in Los Feliz page.

ADU Builders in Los Feliz
Detached ADUs in Los Feliz often take one of two paths: a prefab unit from a manufacturer like Abodu or Cover, placed on a prepared foundation, or a site-built structure designed around your slope and setbacks. Each option has different review timelines in hillside and HPOZ areas, and we’ll walk you through what your specific lot can support. Prefab doesn’t skip the site work; it just changes what happens in your yard during the build. Read more about the full process on our ADU Builders in Los Feliz page.

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 Los Feliz
We work with Abodu, Cover, and James Hardie materials on Los Feliz projects. Each has a different fit for hillside lots and historic review requirements, and we’ll help you compare what actually works on your specific site. Visit our brands page to see the options, or call (213) 449-7136 to talk through what suits your lot.
Pricing for ADU Company in Los Feliz, CA
| Service | Typical range in Los Feliz |
|---|---|
| Detached ADU (site-built, 400 – 800 sq ft) | $180,000 – $350,000 |
| Detached ADU (prefab, Abodu or Cover) | $160,000 – $310,000 |
| Garage conversion to ADU | $120,000 – $220,000 |
| Garage conversion to living space (no kitchen) | $80,000 – $160,000 |
| Home addition (400 – 600 sq ft) | $140,000 – $260,000 |
| Home addition (600 – 1,000 sq ft) | $220,000 – $400,000 |
| Retaining wall / slope stabilization | $15,000 – $60,000 |
| Drainage and erosion control | $8,000 – $25,000 |
| HPOZ architectural review package | $6,000 – $18,000 |
| Foundation upgrade for converted garage | $12,000 – $35,000 |
Hillside grading, retaining walls, and HPOZ compliance push Los Feliz prices toward the upper end of these ranges. That’s why we write the full price before any work starts, no change orders after crews arrive. Call (213) 449-7136 and we’ll give you a written number based on your actual lot.
Neighborhoods We Serve in Los Feliz
We work throughout Los Feliz, from the flats to the hillsides. Typical scheduling for an estimate in this area is one to two business days, depending on how many site visits we have queued that week.
- Los Feliz Village
- Los Feliz Hills
- Franklin Hills
- Laughlin Park
- The Flats (north of Los Feliz Boulevard)
Service Area – Cities Near Los Feliz
Beyond Los Feliz, our crews coordinate from our Los Angeles office to serve nearby communities including Los Angeles, CA, North Hollywood, CA, Studio City, CA, and South Gate, CA. Each area has its own permit offices and lot conditions, and we plan accordingly.
Serving Los Feliz, CA - Our Local Coverage Area
We’re based in the Los Feliz 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 Los Feliz

Yes. We coordinate grading reviews, retaining wall permits, and drainage studies required under the Los Angeles Hillside Ordinance. Your written estimate includes the site work your specific lot needs so there are no surprises after permits are pulled. Call (213) 449-7136 for a free estimate.
If your property is inside a Historic Preservation Overlay Zone, yes. We work with local architects who prepare the materials, massing, and window documentation the review boards expect. That’s included in your project plan from day one, not bolted on later. Call (213) 449-7136 to check if your address falls in an HPOZ.
Most Los Feliz projects span six to ten months from planning to final inspection, depending on hillside review, HPOZ approvals, and weather windows. Prefab can shorten site time, but the permit and foundation phases still take what they take. We’ll give you a realistic schedule before you commit. Call (213) 449-7136 to discuss your timeline.
Ready to plan your Los Feliz ADU, garage conversion, or home addition? Call (213) 449-7136 for a free estimate and a written price before any work begins.
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 Los Feliz Customers Say
"Careful builders who treated our home like we still had to live in it, because we did. Dust controlled, driveway swept nightly, and the finished ADU is beautiful. No surprise costs either."
- Rick Abara"Added a backyard cottage. The team protected our existing landscaping and left the yard clean every evening. Gentle, respectful, and they walked us through each stage calmly."
- Tamara Welsh"Backyard cottage build. For a long project they kept the site remarkably tidy and were respectful of our neighbors and our dog. Swept the driveway every evening."
- Leona Pfeiffer





