What an ADU costs in Sherman Oaks (2026)
Sherman Oaks is part of the City of Los Angeles, with flat lots north and hills south of Ventura Boulevard. Here are typical numbers, the local rules, and your next step.
Typical ADU numbers in Sherman Oaks
- A 750 sq ft backyard ADU with a standard finish costs about $300,000 to build, all in: building, site work, city fees and design.
- Typical ADU rent: about $4,300 a month for 750 sq ft.
- Home value nearby: about $850 per sq ft (Close-in area).
Run the free ADU and new home cost calculator for Sherman Oaks
ADU permits and local rules in Sherman Oaks
Who runs permits
LA Department of Building and Safety (LADBS) handles building permits. LA City Planning handles zoning.
Pre-approved ADU plans
Yes. LA's ADU Standard Plan Program lists dozens of plans already checked by LADBS for building code. The city's own plan is free; the rest are bought from their designers. LADBS still checks your lot for zoning and foundation.
What can slow you down
- Hillside lots south of Ventura face hillside and fire zone rules.
- Lots near Mulholland Drive fall under the Mulholland Scenic Parkway plan.
- If your lot has rent-stabilized units, LA tenant rules can add steps.
Sources: LADBS ADU Standard Plan Program page; LA City Planning ADU and HPOZ pages. State ADU law. General information, not legal advice. Updated October 2026.
Free lot check in Sherman Oaks
Send Hemisphere A&E your address. We look up your zoning and lot size, what fits (ADU, junior ADU, SB 9, new home, apartments, remodel or business space), red flags like fire zones or hillside rules, and a rough cost range. No cost, no pressure. Email info@hemisphereae.com or call (619) 762-7144.
More cost guides for Sherman Oaks
- What a new home costs in Sherman Oaks
- What a restaurant, shop or office build-out costs in Sherman Oaks
- What an apartment building costs in Sherman Oaks
Cost guides for more of LA County
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