ADU builder · Granada Hills, Los Angeles
ADU builder in Granada Hills.
Design, permits, financing and construction from one local team. 600+ ADUs delivered across greater LA, including nearby Lake View Terrace, Van Nuys & Tujunga.
Licensed & insured · Construction from $275/sq ft · 5.0★ rated
Building an ADU in Granada Hills
Granada Hills stretches from the flat blocks of the north Valley up into the foothills of the Santa Susana Mountains. Down on the flats an ADU is mostly a question of layout. In the foothills, slope and fire hazard zones shape the design. The neighborhood also has Balboa Highlands, a City of LA historic district of Eichler homes, where new work goes through extra review. The Granada Hills and Knollwood planning area saw about 335 ADU permits in 2025, per state housing reports.
ADU Resource Center designs, permits and builds ADUs with one in-house team. Our nearest projects are in Lake View Terrace, where we built a 1,200 sq ft, three-bedroom ADU for three generations of one family, and in Van Nuys and Tujunga. In Tujunga we've built on a hillside lot and under tall trees with a paver patio. See our Tujunga page for that work, or our Northridge page for the area just south.
Each project gets a fixed quote before construction and a single project manager through final inspection. We'll also help you work out financing.
ADUs in Granada Hills: quick facts
Updated November 2026
- Who issues ADU permits
- City of Los Angeles: LADBS (Department of Building and Safety)
- Our construction rates
- $275, $300 or $325 per sq ft (basic, mid-range, luxury); garage conversions $235–$285 per sq ft
- Example cost
- A 600 sq ft one-bedroom runs about $165K–$195K in construction
- Size limits under state law
- Detached ADUs up to 1,200 sq ft on many lots; junior ADUs up to 500 sq ft inside the home
- Permit decision
- State law requires a decision within 60 days of a complete application
- Who builds it
- ADU Resource Center: design, permits and construction by one team, 600+ ADUs delivered, office in Glendale
ADU rules change. We confirm the current rules for your lot on the free consultation.
Real projects nearby
ADUs we've built near Granada Hills.
Hear it from our clients
Homeowners on building their ADU with us
More stories on our testimonials page.
Local know-how
What to know before building in Granada Hills.
City of LA permits
Granada Hills ADUs are permitted by LADBS. LA's Standard Plan program offers pre-approved designs that can shorten review on a simple lot.
Balboa Highlands HPOZ
The Balboa Highlands Historic Preservation Overlay Zone covers 108 Eichler homes built in the early 1960s. Projects there are reviewed against the district's preservation plan, so the ADU's design has to fit the tract.
Foothill and fire-zone lots
LAFD's very high fire hazard severity zone includes parts of Granada Hills in the hills. Expect ignition-resistant construction, and on a slope, possible grading or retaining walls.
Steady permit growth
ADU permits in the Granada Hills and Knollwood planning area climbed from about 232 in 2023 to about 335 in 2025, per state housing reports. Our permit roadmap walks through each step with LADBS.
What it costs
ADU cost in Granada Hills
We build at a flat rate per square foot: $275 (basic), $300 (mid-range) and $325 (luxury) finishes. Here's what that means for common sizes. Construction only; design, permits and city fees are quoted separately on your consultation.
| ADU size | Basic | Mid-range | Luxury |
|---|---|---|---|
| 400 sq ft studio | ~$110K | ~$120K | ~$130K |
| 600 sq ft 1-bedroom | ~$165K | ~$180K | ~$195K |
| 800 sq ft 2-bedroom | ~$220K | ~$240K | ~$260K |
| 1,000 sq ft 2–3 bedroom | ~$275K | ~$300K | ~$325K |
Get a number for your exact size: ADU cost calculator · Browse ADU floor plans · Converting a garage? See garage conversion cost.
Free consultation
Start your Granada Hills ADU.
Tell us about your property. We'll confirm what's buildable, give you a real price range and walk through financing within 1 business day.
Questions
Granada Hills ADU questions, answered.
Still have a question? Ask us during your free consultation.
Which office permits ADUs in Granada Hills?
Granada Hills is in the City of Los Angeles, so LADBS issues the permit. If your home is in the Balboa Highlands historic district, the design also goes through the HPOZ review process. We prepare and file everything and handle the plan-check corrections.
How much will my Granada Hills ADU cost?
Our flat construction rates are $275, $300 and $325 per sq ft for basic, mid-range and luxury finishes. That puts a 600 sq ft one-bedroom at roughly $165K–$195K to build. Foothill lots can add grading, retaining walls or fire-zone materials, and we include those in the fixed quote.
I own an Eichler in Balboa Highlands. Can I add an ADU?
Possibly, but the HPOZ adds a review step. Balboa Highlands is a City of LA historic district of 108 Eichler homes, and new work there is reviewed against its preservation plan. We'd design the ADU to fit the mid-century look of the tract and confirm the current review requirements before you commit.
What changes if my lot is up in the foothills?
Parts of Granada Hills are in LAFD's very high fire hazard severity zone. An ADU there needs ignition-resistant roofing, vents and siding, and a sloped site may need a soils report and engineered foundation. We look at the parcel before design so those costs show up early.
Can I fit a three-bedroom ADU on my lot?
On a larger lot it's often possible. State law allows detached ADUs up to 1,200 sq ft on many lots, which is the size of the three-bedroom unit we built nearby in Lake View Terrace. Your setbacks and slope decide what fits, and we check that first.
Free consultation
Ready to build your ADU in Granada Hills?
Tell us about your property and we'll confirm what's buildable, give you a real price range and lay out financing on one free call.
