Palmdale Zoning and ADU Guide for Homeowners

Last updated November 13, 2026. Reviewed by the Cash Home Buyers CA team.

Palmdale reviews accessory dwelling units in two steps, a zoning clearance from Planning and then a building permit, and the city says it may approve a complete zoning clearance in 30 days and a complete building permit within 45 days. This guide summarizes the city’s ADU rules for homeowners, including size, height, setbacks, parking, rental limits and what an ADU or garage conversion means when you sell.

Palmdale ADUs at a glance

Governing rules	Palmdale Municipal Code section 17.91.010 (ADU and JADU standards), adopted under Government Code sections 66310 to 66342
Where allowed	Zones that allow single-family or multifamily homes; junior ADUs only with single-family homes
Review path	Zoning clearance from Planning, then a building permit, both through Accela
City review targets	Zoning clearance about 30 days; building permit about 45 days (complete applications)
Planning contact	Planning Division, 661-267-5200, PlanningDiv@cityofpalmdaleca.gov
Standard ADU Plans	Pre-approved designs in various styles and sizes to simplify permitting
Rental limit	No rentals shorter than 31 days

Types of ADUs the city recognizes

The city’s ADU handout describes an ADU as an additional residential unit with complete independent living facilities on the same parcel as a single-family home. It can be created by new construction, an addition, or conversion of existing space such as an attic or detached garage.

An attached ADU is connected to the home but separate, a detached ADU is a freestanding unit, and a junior ADU (JADU) is up to 500 square feet built within the walls of an existing or proposed single-family home, with at least a basic kitchen and the option of sharing a bathroom with the main house. Sheds, gazebos and garages are accessory structures, not ADUs.

Palmdale ADU development standards

Number allowed	Single-family lot: 1 ADU plus 1 JADU. Multifamily lot: up to 2 detached ADUs of 800 sq ft or less each; attached ADUs up to 25 percent of existing units
Detached ADU size	Up to 1,200 sq ft
Attached ADU size	The higher of 850 sq ft (studio or 1 bedroom) or 1,000 sq ft (2+ bedrooms), or 50 percent of the existing home’s square footage
JADU size	500 sq ft maximum
Detached ADU height	16 feet; 18 feet within a half mile of transit or on a lot with a multi-story multifamily building
Attached ADU height	25 feet or the primary dwelling’s height limit, whichever is lower
Setbacks	Conversions of existing space or same-footprint rebuilds: none. Other ADUs: front setback same as the main home; side, street-side and rear 4 feet, as long as an 800 sq ft ADU can still be built
Parking	Studios: none. 1+ bedroom: 1 space, with exceptions. Garage conversions: no replacement parking required

When parking is not required

For an ADU that would otherwise need a space, the city’s handout lists five exceptions: the ADU is within a half mile of public transit, sits in an architecturally and historically significant district, is within one block of a car-share vehicle, is part of the existing home or an accessory structure, or is in an area where on-street parking permits are required but not offered to the ADU’s occupant.

How the Palmdale review process works

1. Zoning clearance. Submit an application to the Planning Division through Accela and upload the ADU design plans. Planning checks size, height, location and setbacks.
2. Building permit. After the zoning clearance is approved, apply through Accela for a building permit with engineered construction documents. The Building Division reviews them against the California Building Code, and the Engineering Division and utility providers may add requirements such as a grading permit.
3. Construction. Once the permit is issued, work can begin. State law makes ADU review ministerial, meaning no public hearing.

The city also offers Standard ADU Plans approved in various styles and sizes. Applicants first create an Accela account, and using a pre-approved design can simplify design and permitting.

Owner occupancy, rentals and selling an ADU

According to the city’s handout, owners do not have to live on the property for an attached or detached ADU, but for a JADU the owner must live in either the main home or the JADU. An ADU may be rented separately, but ADUs and JADUs cannot be rented for periods shorter than 31 days. An ADU cannot be sold separately from the primary residence.

Fees, utilities, sprinklers and property tax

The handout says no impact fees are charged on a JADU or on an ADU under 750 square feet, though parks and school fees may apply, and it points to the city’s fee schedule.

A separate utility connection is required if the ADU is built with a new single-family home; for an ADU inside an existing home the city cannot require one, and an ADU may not connect to a septic system without approval from the Los Angeles County Public Health Department.

Fire sprinklers are typically not required in an ADU if they are not required for the main home, but you should confirm with Building and Safety and the Los Angeles County Fire Department.

New construction is appraised at fair market value by the County Assessor under Prop 13, so an ADU can affect your property tax. Our Prop 13 guide explains how.

ADUs, garage conversions and selling a Palmdale house

Many older homes have a converted garage or a backyard unit that was built without permits. Buyers and lenders ask about them, and California sellers generally disclose known unpermitted work. Our statewide guide to selling as-is with unpermitted work explains the rules. Before you list, consider these steps:

• Check Accela for permits on any ADU, garage conversion or addition.
• Ask Planning whether the structure could qualify for zoning clearance under the current standards.
• Estimate the cost of plans, fees and corrections if the city requires work to legalize it.
• Compare that with selling as-is and letting a cash buyer take on the legalization.

How to sell a house in Palmdale

1. Check which structures on the property are permitted ADUs, conversions or unpermitted.
2. Collect permits, plans and any city notices.
3. Request a no-obligation cash offer for the house as it stands.
4. Choose your closing date.
5. Close with no legalization, repairs or showings required.

Our local pages cover related situations in Palmdale, including selling as-is, selling fast, cash home buyers and the cash offer process. Nearby, see the Lancaster page and our Los Angeles County hub.

Frequently asked questions

How long does Palmdale take to approve an ADU?

The city says a complete zoning clearance application may be approved in 30 days, and then a complete building permit application may be approved within 45 days.

Do I have to live on the property if I build an ADU in Palmdale?

Not for an attached or detached ADU. For a junior ADU, the owner must live in either the main home or the JADU.

Can I sell a Palmdale ADU separately from the house?

No. The city’s handout says an ADU cannot be sold separately from the primary residence.

Can I rent out my Palmdale ADU?

Yes, but ADUs and JADUs cannot be rented for periods shorter than 31 days.

Does an ADU need extra parking in Palmdale?

A studio needs none and a 1+ bedroom ADU needs one space, with exceptions such as being within a half mile of transit. Converting a garage does not require replacement parking.

Are impact fees charged on a small ADU in Palmdale?

No impact fees are imposed on a JADU or an ADU under 750 square feet, though parks and school fees may apply.

Can I sell my Palmdale house with an unpermitted ADU or garage conversion?

Yes. You can disclose it and sell as-is, including to a cash buyer. Our statewide guide explains the disclosure rules.

More guides

• We Buy Houses in Palmdale
• We Buy Houses in Los Angeles County
• Los Angeles County Property Tax Guide
• Palmdale Building Permits Guide
• Palmdale Code Enforcement Guide
• Lancaster Building Permits Guide
• Lancaster Code Enforcement Guide
• Lancaster Zoning and ADU Guide
• All California Guides

Sources

• City of Palmdale: Accessory Dwelling Units handout (PDF)
• City of Palmdale: Standard ADU Plans
• Palmdale Municipal Code section 17.91.010: ADU and JADU standards
• California HCD: Accessory Dwelling Units

This guide is general information from public sources, not legal advice. Confirm current rules, fees and hours with the city.