ADU Company in Sherman Oaks, CA
An ADU in Sherman Oaks means adding a small house to a larger property, and this particular pocket of the Valley rewards homeowners who understand exactly what their lot is working with. Most of the housing stock here is single-story ranch homes from the 1950s and 60s on R1 lots between 6,000 and 9,000 square feet, which is a quietly ideal setup for a detached unit or garage conversion. What changes the math in Sherman Oaks is the heat, the hills, and the Northridge-era repair history buried in LADBS permit files. Call (254) 602-5618 for a free estimate, and we’ll walk you through what your specific lot can actually support under LA City ADU rules.
Why Sherman Oaks Homes Are Different
Sherman Oaks sits on the Valley floor, where summer temperatures routinely hit 100 to 108°F – fifteen degrees hotter or more than what coastal Los Angeles sees on the same afternoon. That means right-sized mini-split HVAC isn’t a nice-to-have in an ADU here; it’s the difference between a unit that’s livable in August and one that gets used three seasons a year. Title 24 compliance will push every project toward proper insulation and an efficient cooling system, and we budget for both from the first line item.
The housing stock adds its own wrinkles. The detached two-car garages that most homeowners want to convert were poured in the 1960s, typically on slabs around 3.5 inches thick, uninsulated, and in a fair number of cases cracked from Northridge-era settling. A slab like that doesn’t meet modern habitable-space standards, so a conversion almost always means either pouring a new foundation section or building a raised floating floor system. Teams that don’t know Sherman Oaks miss this line item entirely until the inspector flags it.
Then there’s the hillside corridor along Mulholland Drive. Parcels up there fall inside Very High Fire Hazard Severity Zones, which translates to fire-rated wall assemblies and defensible-space setbacks that can sharply constrain where an ADU can sit on the lot. The flat parts of Sherman Oaks don’t carry that burden, but the hillside lots absolutely do, and the site plan has to account for it from day one.
One more thing that sets Sherman Oaks apart: because this is City of Los Angeles jurisdiction, a standard R1 lot can support both a JADU (a junior accessory dwelling unit, carved from existing living space) and a full detached ADU at the same time. Neighboring cities like Burbank and Glendale operate under stricter municipal codes and simply can’t match that layered opportunity.
Our Main Sherman Oaks Services
These are the three jobs Sherman Oaks homeowners call us about most, and each has its own dedicated page with local pricing and permit details for this specific city.
Home Addition Contractor in Sherman Oaks
A home addition in Sherman Oaks means bumping out from a ranch home’s existing footprint, and the first question is always what the foundation and roofline can carry. The 1950s and 60s construction here is generally solid, but additions still need to tie into post-quake retrofit work that may have altered the original framing. We pull the LADBS permit history, match the roofline cleanly, and give you a written price before any framing begins. Home Addition Contractor in Sherman Oaks
Garage Conversion Contractor in Sherman Oaks
Garage conversions are the most common ADU path in Sherman Oaks, because the detached two-car garages are already there, already setback-compliant, and already wired. The catch is the slab: most 1960s garage floors here are too thin and uninsulated for living space, so the budget needs to account for slab replacement or a raised floating floor from the start. We handle that as a standard part of the estimate, not a surprise change order. Garage Conversion Contractor in Sherman Oaks
ADU Builders in Sherman Oaks
A detached ADU on a Sherman Oaks R1 lot is a genuinely flexible asset: a rental, a home office, a place for aging parents, or a long-term guest suite. Because LA City allows a JADU plus a full detached ADU on the same parcel, some homeowners start with the garage conversion and add the detached unit later – and we design the first project so the second one stays simple. The fire-zone rules on hillside lots come into play here more than anywhere else. ADU Builders in Sherman Oaks
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 Sherman Oaks
We work with proven ADU systems from our brands including Cover, Dvele, and Boxabl, matched to what your Sherman Oaks lot can actually support. Prefab panels arrive pre-engineered, which helps keep the build moving even when Valley heat slows traditional stick-framing crews.
Pricing for ADU Company in Sherman Oaks, CA
| Service | Typical range in Sherman Oaks |
|---|---|
| Detached ADU (site-built, standard finishes) | $180,000 – $320,000 |
| Detached ADU (prefab/manufactured) | $150,000 – $280,000 |
| Garage conversion ADU (full build-out) | $110,000 – $180,000 |
| JADU (junior ADU, interior conversion) | $60,000 – $110,000 |
| Home addition (bedroom/bath, attached) | $140,000 – $260,000 |
| Slab replacement under garage conversion | $8,000 – $18,000 |
| Mini-split HVAC for ADU (2 – 3 zones) | $7,000 – $14,000 |
| Fire-rated assembly upgrades (hillside zones) | $6,000 – $15,000 |
| Foundation repair (Northridge-era cracking) | $5,000 – $20,000 |
| Full plans + LADBS permit package | $8,000 – $16,000 |
The things that push a Sherman Oaks project toward the top of these ranges are predictably local: a hillside lot in a fire hazard zone, a garage slab that needs full replacement, or foundation repair work tied to older earthquake damage. Whatever the number ends up being, you’ll see it in writing before we start – not after the drywall goes up.
Neighborhoods We Serve in Sherman Oaks
We cover Sherman Oaks from the Ventura Boulevard flats up into the hills south of Mulholland, and from Van Nuys Boulevard west toward Sepulveda. Scheduling works the same across the whole area: crews stage from our Los Angeles office and arrive on-site within the window we commit to in writing.
- Sherman Oaks Hills (south of Ventura Blvd, up toward Mulholland)
- Fashion Square area
- Chandler Estates
- Van Nuys / Sherman Oaks border streets
- Sepulveda Basin area
Service Area – Cities Near Sherman Oaks
Our crews cover Sherman Oaks and the surrounding San Fernando Valley communities. We also work regularly in Van Nuys, CA, Encino, CA, Studio City, CA, and Tarzana, CA. If your property sits near the border of any of these, the same LA City permit process applies.
Serving Sherman Oaks, CA - Our Local Coverage Area
We’re based in the Sherman Oaks 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 Sherman Oaks
A full detached ADU in Sherman Oaks typically runs $180,000 to $320,000, while a garage conversion lands between $110,000 and $180,000. Hillside fire-zone requirements and old garage slabs can push those numbers higher. Call (254) 602-5618 for an exact quote – estimates are free.
Yes. Sherman Oaks is inside City of Los Angeles, so every ADU, JADU, and garage conversion goes through LADBS. We pull and reconcile the full permit history, handle the plans, and manage inspections so the paperwork never becomes your second job.
On a standard R1 lot in Sherman Oaks, yes – LA City’s ADU ordinance allows a JADU plus one full detached ADU on the same parcel. That’s a code-specific advantage this city has over neighbors like Burbank and Glendale. Call (254) 602-5618 to confirm your lot qualifies.
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 Sherman Oaks Customers Say
"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"Junior ADU conversion inside the house. They protected the rest of our place with plastic and daily cleanup. Done nearly on schedule and on the number they quoted."
- Sabrina Veld