ADU Regulations in Menifee, California
Riverside County · CA · Pop. 100,000
Max ADU Size
1,200
sq ft detached
Rear Setback
4 ft
Permit Timeline
60 days
Build Cost
$135,000 – $275,000
Zoning
Allowed ADU Types
State law preempts local owner-occupancy requirements. Menifee's planned communities and Specific Plan areas typically feature larger lots, making detached ADUs especially viable. One ADU plus one JADU permitted per single-family lot.
Source: City of Menifee — Accessory Dwelling Units · Menifee Municipal Code Title 9 (Zoning)
Dimensions
Size & Setback Requirements
Detached
1,200
sq ft max
JADU
500
sq ft max
Attached
50% of primary home, max 1,200 sq ft
Setbacks
front
Same as primary dwelling
side
4 ft
rear
4 ft
Max height: 16 ft
Lot coverage: Per underlying zone
Menifee's newer planned residential developments often have lots of 6,000–10,000 sq ft, offering ample room for detached ADUs. HOA CC&Rs in Specific Plan areas are superseded by state ADU law. Garage conversions are straightforward given the prevalence of two- and three-car garages.
Permitting
Permit Process
Department
City of Menifee Community Development Department — Planning Division
Review Timeline
60 days
Permit Fees
$5,500 – $11,000
Impact Fees
Impact fees waived for ADUs under 750 sq ft per state law
Required Documents
- ›Site plan
- ›Floor plans
- ›Elevations
- ›Title 24 energy compliance
- ›Structural drawings
- ›HOA approval documentation (if applicable; note state law supersedes)
Menifee is one of the fastest-growing cities in California and has adopted streamlined ADU processing per state law. Online permit submittals are accepted. As the city grows, planning staff capacity may vary; early submittal is recommended. Rancho California Water District and Eastern Municipal Water District serve different areas — verify your service provider.
Visit City of Menifee Community Development Department — Planning Division →Infrastructure
Utilities & Requirements
Solar
Required
Parking
Not required
Separate Meter
Optional
Fire Sprinklers
See note
Financials
ADU Costs in Menifee
Typical Build Cost
$135,000 – $275,000
Cost per Sq Ft
$190 – $255
Monthly Rental
$1,400 – $2,200/mo/mo
Property Value Added
Adds $145,000 – $265,000 to property value
Available Grants & Programs
- ★CalHFA ADU Grant Program available
- ★Riverside County housing assistance programs
Menifee is one of California's fastest-growing cities with strong ADU demand driven by population growth and affordability relative to coastal markets. Large lots in planned communities make detached ADUs very feasible. As the city matures, rental rates and property values continue to rise, improving ADU investment returns.
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Menifee Quick Facts
- Max size1,200 sq ft
- Rear setback4 ft
- Permit timeline60 days
- Build cost$135,000 – $275,000
- Rental income$1,400 – $2,200/mo/mo
- Owner occupancyNot required
Official Source
City of Menifee — Accessory Dwelling UnitsMenifee Municipal Code Title 9 (Zoning)
Last verified: March 14, 2026
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