South Whittier Homeowner Guide: LA County Permits and Unincorporated Rules

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

South Whittier is an unincorporated community of Los Angeles County, so building permits come from LA County Public Works Building and Safety, not from the City of Whittier. This guide explains how that County system works, how to look up permits on a South Whittier house, what the County says about inspections and exempt work, and how to prepare a property for sale. Confirm details for your parcel with the County before you act.

South Whittier at a glance

Jurisdiction	Unincorporated Los Angeles County; policing by the LA County Sheriff’s Department out of its Whittier station
Permits	LA County Public Works, Building and Safety Division
Online system	EPIC-LA, the County’s online portal for plans, permit applications, fees and inspection requests
Permit history	LA County Building Permit Viewer for the unincorporated areas
Headquarters	Building and Safety Division, 3rd Floor, 900 S. Fremont Ave., Alhambra
Nearby city	The City of Whittier has separate rules; see our Whittier guides

Why South Whittier is not Whittier

South Whittier sits against the Whittier city border but is not part of it. It is one of the larger unincorporated communities in the county, with more than 56,000 residents across about 5.3 square miles, and it is served by the Sheriff’s Whittier station rather than a city police department.

For a homeowner, the important difference is the permit office. A South Whittier address is handled by the County, while a house a few blocks away inside Whittier follows the city’s rules.

If you are not sure which side of the line a house is on, confirm it before you search for permits or apply for one.

How County permits work

The County says a permit is required for additions, alterations or repairs to your principal residence, and for any building project where it has been determined a permit is required, excluding work that is exempt.

EPIC-LA is the online portal where you can submit plans and supporting documents, pay permit fees, apply for a permit and request inspections. The County’s Work Exempt from Permits page lists what does not need one, so check it before you assume a project is exempt.

Our Whittier page and Whittier building permits guide explain the city side, which is a different process.

Confirm the jurisdiction. Make sure the parcel is in unincorporated County territory.
Check whether a permit is needed. Review the exempt work list or call the local Building and Safety District Office.
Apply in EPIC-LA. Submit plans, pay fees and track the review online.
Request inspections. The County says periodic inspections must be requested as you complete a phase of construction, at least 24 hours in advance, and are performed only during regular working hours.

Look up permits on a South Whittier house

The County provides a Building Permit Viewer for permits issued in the unincorporated areas. It holds scanned images of past paper permits and records from its Development and Permit Tracking System and EPIC-LA.

Search the address and read the history for permits opened and never finalized, work you know was done with no permit and additions that do not match the original plans. A permit without a final inspection is an open permit, and buyers and lenders ask about it.

Many South Whittier houses are older homes with enclosed patios and garage conversions, so the permit record is worth checking before you list.

Zoning and ADUs

Land use and zoning in unincorporated areas are handled by the County’s Department of Regional Planning, while Building and Safety handles construction. The County, like every California jurisdiction, must follow state ADU law, and its ADU requirements are published by Regional Planning.

Because rules differ between the County and the City of Whittier, do not rely on a neighbor’s experience across the border. Confirm the zone, the allowed unit types and the parking requirements for your parcel with the County before you plan a unit.

For general guidance on ADUs and legalizing older units, see our statewide guide on selling as-is with unpermitted work.

Code enforcement

The County’s Building and Safety Division enforces regulations for buildings and structures in the unincorporated County, and zoning violations are handled through the County’s planning side. If you receive a notice, read the cited section, note the deadline and contact the office that sent it.

Fixing or documenting the problem before a sale usually helps, but it is not required in order to sell. California sellers generally must disclose known problems, including work known to have been done without a permit.

Selling in South Whittier

South Whittier has a large, active resale market, and houses in good condition sell to financed buyers. Houses with deferred maintenance, an unpermitted conversion, tenants or probate issues are harder to sell the usual way, since lenders and appraisers look for permitted living area.

A cash buyer can purchase the house as it is, price the permit gap and close on your schedule. See our statewide guides on seller closing costs, selling a tenant-occupied home and probate home sales.

How to sell a house in South Whittier

Confirm the parcel is in unincorporated County territory.
Search the County’s Building Permit Viewer and note open permits.
List every addition, garage conversion or outbuilding and whether it was permitted.
Ask the County whether any code case is open.
Request a no-obligation cash offer, choose your closing date and close with no repairs or showings required.

More local pages: We Buy Houses in South Whittier, Whittier and the Los Angeles County hub.

Own a South Whittier house with open permits or an unpermitted conversion? Sell as-is for cash.

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Frequently asked questions

Is South Whittier part of the City of Whittier?

No. It is an unincorporated community of Los Angeles County, so County Public Works Building and Safety handles permits.

How do I get a building permit in South Whittier?

Use EPIC-LA, the County’s online portal for unincorporated areas, or contact the local Building and Safety District Office.

How do I look up past permits?

Use the LA County Building Permit Viewer, which covers permits issued in the unincorporated areas.

How do I schedule an inspection?

The County says periodic inspections must be requested as you complete a phase of work, at least 24 hours in advance.

Does South Whittier follow Whittier’s rules?

No. The City of Whittier’s building, zoning and code rules do not apply in unincorporated South Whittier.

Can I sell a South Whittier house with unpermitted work?

Yes. You can disclose the work 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.