Hasley Canyon Homeowner Guide: LA County Permits, ADUs and Zoning

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

Hasley Canyon is an unincorporated community near Castaic, so Los Angeles County, not a city, handles its building permits, zoning and zoning enforcement. The County’s land-use rules for the area come from the Santa Clarita Valley Area Plan and Title 22 of the County Code.

This guide explains who to contact for permits and inspections, how County zoning enforcement works, how to check ADU rules, and what an open permit or violation means for a sale of a Hasley Canyon house.

Hasley Canyon at a glance

Governing agency	County of Los Angeles (unincorporated)
Area plan	Santa Clarita Valley Area Plan, per the County’s planning map catalog
Zoning code	Title 22 (Planning and Zoning) of the Los Angeles County Code
Building permits and inspections	LA County Public Works, Building and Safety; inspection requests for unincorporated projects are online only through EPIC-LA (since July 1, 2022)
Plan check	(626) 458-3173
Zoning enforcement	LA County Planning, (213) 974-6453 or (213) 974-6483; ZoningEnforcement@planning.lacounty.gov
Local park	Hasley Canyon Park, 28700 W. Quincy St., Castaic

Who handles what in Hasley Canyon

Unlike a city, an unincorporated community has no municipal building department or code office. LA County Public Works Building and Safety reviews plans and inspects construction, LA County Planning administers zoning and runs zoning enforcement, and the County Recorder and Assessor handle deeds and taxes. For property taxes, see our Los Angeles County property tax guide.

Building permits

The County’s Building and Safety division says that, effective July 1, 2022, inspection requests for projects in the unincorporated area are processed online only through its EPIC-LA system.

Plan check is a review of plans, drawings and documents by the Building Official for compliance with building codes, and the section’s plan check line is (626) 458-3173.

A permit application expires if no permit is issued within 12 months of the application date, and the Building Official can grant two extensions on written request. The County lists its Building and Safety headquarters hours as 7 a.m. to 5 p.m., Monday through Thursday.

Zoning and the area plan

Hasley Canyon falls under the Santa Clarita Valley Area Plan, which the County maps alongside the Northlake Specific Plan. The County has also documented a bridge and major thoroughfare district for Castaic that references Hasley Canyon Road, a reminder that development fees can be tied to the area.

Zoning for a particular lot comes from Title 22, and the County’s planning pages are the place to look up what a given parcel allows. Ask LA County Planning at (213) 974-6411 or info@planning.lacounty.gov if you cannot tell which zone applies.

ADUs in unincorporated Los Angeles County

The County regulates accessory dwelling units and junior ADUs through Title 22, and it publishes an ADU ordinance summary and has amended the ordinance to track state law. The County has also issued 2026 planning memos on state housing laws that affect ADUs and lot splits.

Because the standards have changed repeatedly, confirm the current rules with County Planning before you design a unit or buy a home on the strength of a backyard unit. Converted existing structures must meet current building requirements, according to the County’s ADU summary.

Zoning enforcement

LA County Planning handles zoning complaints. Anyone can report a violation by email at ZoningEnforcement@planning.lacounty.gov or by phone. After a complaint, an investigating planner researches the property. If no violation is found the case closes. If one is found, the County issues a Notice of Violation.

If the violation is not corrected, the County issues a Final Zoning Enforcement Order with fees, then a second Notice of Incompliance, and the case can be referred to the District Attorney’s office.

The County says time extensions may be granted when an owner or tenant shows willingness to correct the problem. Common zoning violations include unpermitted dwelling units, so an unpermitted conversion is exactly the kind of issue that can start a case.

How to check a Hasley Canyon parcel

Look up the zoning and land-use designation for the parcel on the County’s planning site.
Ask Building and Safety for the permit history on the address.
Compare that history with the property: additions, garage conversions, detached units.
Ask whether a homeowner association or recorded covenants apply.
Collect any Notice of Violation or other County letter and note its deadlines.

Selling a Hasley Canyon house with an open permit or violation

A permit that was never finaled or a unit built without approval can slow a traditional sale. Selling as-is means you disclose what you know and the buyer takes on correcting or legalizing it. Our statewide guide to selling as-is with unpermitted work explains disclosure. A short checklist:

Pull the permit history and flag anything not finaled.
List additions or conversions without a permit.
Keep any Notice of Violation or Final Order.
Check for unpaid fees or liens.
Compare fix-first costs with an as-is cash offer.

How to sell a house in Hasley Canyon

Gather permits, County letters and any notices.
List known open or missing permits.
Request a no-obligation cash offer for the home as it stands.
Choose your closing date.
Close without repairs, corrections or showings.

Our local pages cover related situations in Hasley Canyon, including selling as-is, selling fast, facing foreclosure, selling during a divorce and selling an inherited house. See also our Hasley Canyon page and the Los Angeles County hub.

Own a Hasley Canyon home with an open permit or zoning issue? Sell as-is for cash.

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Frequently asked questions

Is Hasley Canyon a city?

No. It is an unincorporated community, so Los Angeles County handles permits and zoning.

How do I schedule a building inspection?

For unincorporated projects, inspection requests are made online through the County’s EPIC-LA system.

Who handles zoning complaints?

LA County Planning’s Zoning Enforcement, at ZoningEnforcement@planning.lacounty.gov or (213) 974-6453.

What happens after a Notice of Violation?

If not corrected, the County can issue a Final Zoning Enforcement Order with fees, a second Notice of Incompliance, and refer the case to the District Attorney.

Do I have to disclose unpermitted work?

California sellers generally disclose known unpermitted work.

Can I sell a Hasley Canyon house with a violation?

Yes. You can disclose it and sell as-is, including to a cash buyer.

More guides

Sources

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