ADU Regulations in Anaheim Hills, California
Everything you need to know about building an ADU in Anaheim Hills — size limits, setbacks, permits, and costs.
How many ADUs are allowed in Anaheim Hills?
- → 1 Detached ADU (up to 1,200 sq ft)
- → 1 Attached ADU
- → 1 Junior ADU / JADU (up to 500 sq ft)
- → Up to 8 detached ADUs
- → Interior conversions up to 25% of existing units
All California cities must follow state-law minimums. Anaheim Hills follows California AB 68 and subsequent ADU laws.
Anaheim Hills ADU rules & limits.
| ADUs Allowed | Up to 3 units on a single-family lot (primary home + 1 ADU + 1 JADU); up to 8 detached ADUs on multifamily lots |
|---|---|
| Max ADU Size | 1,200 sq ft |
| Setbacks | 4 ft side & rear (CA state baseline) |
| Height | 16 ft detached |
| Parking | Not required in most cases; no replacement parking for garage conversions |
| JADU Allowed | Yes — up to 500 sq ft; owner-occupancy required if JADU is present |
| Impact Fees | Waived under 750 sq ft (state law) |
| Permit Timeline | 60 days maximum (state-mandated review window) |
Anaheim Hills is part of the City of Anaheim. Hillside areas may have additional grading, slope-stability, retaining wall, and fire safety overlay requirements that affect ADU placement, structural design, and exterior materials.
Contact: Anaheim Planning: (714) 765-5139
What could your Anaheim Hills ADU earn?
Rental estimates based on current North Orange County market rates. Actual rents vary by condition, amenities, and local demand.
Four paths to an ADU in Anaheim Hills.
From idea to reveal.
Free Feasibility Consultation
We walk your lot, check setbacks and lot coverage, and confirm what your jurisdiction will approve.
Design & Engineering
Floor plan, elevations, structural calcs, and Title 24 energy compliance — drawn for your specific lot.
Permit Submission & Approval
We submit to your city or county, manage plan-check corrections, and pay the permit fees.
Construction
Same Construction Station crew handles foundation, framing, MEP, drywall, and finish — start to keys.
Final Inspection & Move-In Ready
Final city inspection, certificate of occupancy where applicable, and two-year workmanship warranty.
Why build an ADU in Anaheim Hills.
Anaheim Hills offers some of the strongest ADU economics in our broader service area. Median home values in Anaheim Hills are substantially higher than in the Inland Empire core, which translates into strong ADU appraisal lift. The Orange County employment base — Disney, Anaheim convention industry, the broader OC professional and healthcare economy — supports premium long-term rental demand. Hillside lots are larger than typical Orange County suburban parcels, which provides siting flexibility despite the slope considerations. The hillside design and structural cost premium is a real factor in the budget, but it's a known and quantifiable factor rather than a surprise — and the appraisal lift on a well-designed Anaheim Hills ADU typically more than offsets the additional structural cost. Construction Station handles the hillside coordination as part of the standard design process.
Ready to build an ADU in Anaheim Hills?
We’ll walk your lot, confirm what Anaheim Hills will allow, and ballpark cost before you commit to anything.
Anaheim Hills ADU questions, answered.
How much does an ADU cost in Anaheim Hills?
How long does it take to get an ADU permit in Anaheim Hills?
Can I rent my ADU in Anaheim Hills?
Do I need owner-occupancy for an ADU in Anaheim Hills?
Does Construction Station build ADUs in Anaheim Hills?
ADU regulations change frequently. Always verify current requirements with the Anaheim Hills Planning Department at (714) 765-5139. This page was last updated May 2026.