ADU Regulations in Roseville, California
Placer County · CA · Pop. 145,000
Max ADU Size
1,200
sq ft detached
Rear Setback
4 ft
Permit Timeline
60 days
Build Cost
$155,000 – $310,000
Zoning
Allowed ADU Types
ADUs are permitted by right in all residential zones. Roseville uses its own zone designations (RLD = Low Density Residential, RMD = Medium Density, RHD = High Density) but mirrors state law in all material respects. The city's newer master-planned neighborhoods often have HOAs — state law prohibits HOAs from banning ADUs but they may regulate aesthetics.
Source: City of Roseville — Accessory Dwelling Units · Roseville Municipal Code Chapter 19.98
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 (detached); up to 25 ft if attached or above garage
Lot coverage: Per underlying zone; RLD typically 40–45%
Roseville's newer subdivisions often have larger rear yards than infill Sacramento neighborhoods, giving homeowners ample room for a full 1,200 sq ft detached ADU. Lots in older downtown-adjacent neighborhoods are smaller; JADU or attached conversions may be more practical there.
Permitting
Permit Process
Department
Community Development — Planning Division
Review Timeline
60 days
Permit Fees
$6,000 – $12,000
Impact Fees
Impact fees waived for ADUs under 750 sq ft; pro-rated for larger units; school impact fees may apply
Required Documents
- ›Site plan with property lines, setbacks, and existing structures
- ›Floor plans
- ›Elevations
- ›Title 24 energy compliance
- ›Structural drawings
- ›Utility connection plan
Roseville has one of the more efficient permit processing workflows in the Sacramento region and offers an online permit portal. ADU-specific handouts and a pre-application checklist are available on the Planning Division website. School fees (Roseville City School District and Roseville Joint Union High School District) are assessed separately.
Visit Community Development — Planning Division →Infrastructure
Utilities & Requirements
Solar
Required
Parking
Not required
Separate Meter
Optional
Fire Sprinklers
See note
Financials
ADU Costs in Roseville
Typical Build Cost
$155,000 – $310,000
Cost per Sq Ft
$215 – $280
Monthly Rental
$1,500 – $2,400/mo/mo
Property Value Added
Adds $130,000 – $240,000 to property value
Available Grants & Programs
- ★CalHFA ADU Grant Program available (up to $40,000 for pre-development costs)
- ★Placer County Housing Trust Fund resources
As one of California's fastest-growing cities, Roseville sees strong ADU demand from tech workers commuting to Sacramento and remote workers priced out of the Bay Area. Construction costs are moderate compared to coastal markets, making ADU ROI particularly attractive here.
Use the free ADU Cost Calculator →Free Service
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Roseville Quick Facts
- Max size1,200 sq ft
- Rear setback4 ft
- Permit timeline60 days
- Build cost$155,000 – $310,000
- Rental income$1,500 – $2,400/mo/mo
- Owner occupancyNot required
Official Source
City of Roseville — Accessory Dwelling UnitsRoseville Municipal Code Chapter 19.98
Last verified: March 14, 2026
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