California ADU rules · Riverside County
Can I Build an ADU in Palm Springs?
Yes — you can build an ADU in Palm Springs. California's statewide ADU law requires every city, including Palm Springs, to approve a qualifying accessory dwelling unit by right, plus a junior ADU (JADU) on a single-family lot. What varies city to city are the local specifics below.
Can you build one?
ADUs allowed
CA state lawYes — by right
ADUs and JADUs are allowed by right in all residential and mixed-use zones; ministerial approval, no hearing.
Units on a single-family lot
Local rule1 detached ADU + 1 JADU (within primary) + 1 conversion ADU
Allows both a detached ADU and a conversion ADU in addition to a JADU on single-family lots.
Units on a multifamily lot
Local ruleconversions (>=1 or 25% of units) + up to 2 detached (or up to 8 detached if existing multifamily, not to exceed number of existing units)
Detached ADU cap is 2 unless lot has existing multifamily, then up to 8 but not exceeding number of existing units.
Junior ADU (JADU)
CA state lawAllowed
Up to 500 sq ft, within the walls of an existing single-family home (single-family lots only).
Size & height
Max detached ADU size
Local rule1,000 sq ft
Detached ADU max: 850 sq ft (studio/1-bed), 1,000 sq ft (2+ bedrooms); 1,000 is the local cap.
Max attached ADU size
Local rule850 (studio/1-bed), 1,000 (2+ bed), AND no more than 50% of primary dwelling
Both a flat cap and a percentage of primary dwelling apply.
Guaranteed minimum size
CA state law800 sq ft
An 800 sq ft ADU must be allowed regardless of FAR/lot-coverage caps; a city also cannot cap an attached ADU below 850 sq ft (1,000 for 2+ bedrooms).
Max JADU size
CA state law500 sq ft
Max height
Local rule16 ft
16 ft standard; 18 ft near transit or on multifamily; up to 20 ft for matching roof pitch; attached ADUs up to 25 ft or zone max.
Setbacks
Side setback
CA state law4 ft
A city cannot require more than 4 ft side or rear setback; conversions of existing structures are exempt.
Rear setback
CA state law4 ft
Front setback
Local rule25 ft (for ADUs subject to permit under F; state law applies for 800 sq ft ADUs with 4 ft setbacks)
25 ft front setback unless state-mandated 800 sq ft ADU with 4 ft setbacks.
Separation from main house
CA state lawNone required
No statewide separation requirement between the ADU and the primary dwelling.
Parking
Parking required
Local ruleUp to 1 space
1 off-street space per ADU or per bedroom, whichever is less; multiple exemptions apply.
Transit parking exemption
CA state lawYes — no parking required near transit & for conversions
No parking may be required within ½ mi walking distance of transit, in a historic district, for an ADU within an existing structure, within one block of car-share, or in certain permit-parking areas.
Garage-conversion replacement parking
Local ruleNot required
No replacement required for parking lost to ADU conversion.
Approval, timeline & cost
Approval path
CA state lawMinisterial (by right)
No public hearing or discretionary design review for a qualifying ADU.
Approval timeline
Local rule60 days
60 days for approval/denial after complete application.
Owner-occupancy
Local ruleOnly for a JADU
Owner-occupancy required for JADUs only.
Impact-fee waiver
Local ruleWaived under 750 sq ft
No impact fee for ADUs <750 sq ft or for JADUs.
Permits required
Local ruleBuilding permit, ADU permit
Both building and ADU permits required.
Palm Springs-specific factors that can change the answer
State law sets the floor, but these local conditions often decide whether a specific parcel works.
Sprinkler requirement
Sprinklers required in ADU/JADU if required in primary dwelling.
Historic resource visibility
ADU within 600 ft of a historic resource must not be visible from public right-of-way.
Palm Springs caps detached ADUs at 1,000 sq ft (2+ bedrooms) and requires a 25 ft front setback for most ADUs, with exceptions for state-mandated 800 sq ft units. Historic and fire safety overlays impose additional requirements.
Frequently asked questions
Can I build an ADU in Palm Springs?
Yes. California's statewide ADU law requires Palm Springs to approve a qualifying accessory dwelling unit ministerial (by right), plus a junior ADU (JADU) on a single-family lot.
How big can an ADU be in Palm Springs?
A detached ADU of at least 1,000 sq ft must be allowed, and an ADU of 800 sq ft can never be zoned out by floor-area or lot-coverage limits. A JADU can be up to 500 sq ft.
What are the setback requirements for an ADU in Palm Springs?
Side and rear setbacks are limited to 4 ft. 25 ft (for ADUs subject to permit under F; state law applies for 800 sq ft ADUs with 4 ft setbacks).
Is parking required for an ADU in Palm Springs?
Up to 1 space. No parking can be required within ½ mile of transit, for conversions, or for units inside the primary home. When a garage is converted, replacement parking is not required.
How long does ADU approval take in Palm Springs?
A complete application must be acted on within 60 days, with ministerial (by right) — no public hearing or discretionary design review for a qualifying ADU.
Do I have to live on the property to build an ADU in Palm Springs?
Owner-occupancy: only for a jadu. ADUs under 750 sq ft are also exempt from impact fees.
Sources
- Palm Springs Zoning Code, ADU Section
- Palm Springs Zoning Code, ADU Section D.1.b-d
- Palm Springs Zoning Code, ADU Section F.1.a
- Palm Springs Zoning Code, ADU Section F.1.a-b
- Palm Springs Zoning Code, ADU Section E.2.a-d
- Palm Springs Zoning Code, ADU Section F.3.a-c
- Palm Springs Zoning Code, ADU Section F.7.a-b
- Palm Springs Zoning Code, ADU Section F.7.c
- Palm Springs Zoning Code, ADU Section D.3.a-c, E.7
- Palm Springs Zoning Code, ADU Section G.1
- Palm Springs Zoning Code, ADU Section E.3
- Palm Springs Zoning Code, ADU Section F.10
- Cal. Gov. Code §§ 66310–66342 (ADU Law)
- HCD 2025 Accessory Dwelling Unit Handbook
- Cal. Gov. Code § 66317 (ministerial approval, 60-day deadline)
- Cal. Gov. Code § 66333 (junior ADUs)
- Cal. Gov. Code § 66321 (size minimums & height)
- Cal. Gov. Code § 66323 (by-right ADU/JADU, 800 sq ft, 4-ft setbacks)
- Cal. Gov. Code § 66322 (ADU parking; § 66334 covers JADU parking)
Last updated 2026-06-25. This is an AI-assisted summary of Palm Springs's ADU rules, drawn from its published ordinance and California ADU law — general information, not legal advice, and it may be incomplete or out of date. Verify the controlling rule for your specific parcel with Palm Springs Planning before relying on it.
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