Homes for Sale in 93063

93063 at a glance

• Less than a third City land: 93063 homes for sale sit in a ZIP of about 36.2 square miles of land, and the 2020 Census ZCTA relationship files place 31.1 percent of it in the City of Simi Valley. Another 3.5 percent is the Santa Susana census-designated place, and 65.4 percent lies in no city or designated place, including points in Rocky Peak Park and Tapo Canyon Regional Park. Acreage is not a home count.
• Santa Susana Knolls is County land: The Census geocoder places the Santa Susana area outside City limits, and Figure A-23 of the County’s 2040 General Plan shows it as the Santa Susana Existing Community, mostly Very Low Density Residential; a 2012 County environmental report calls it the Santa Susana Knolls Existing Community. See Santa Susana Knolls homes for sale.
• City streets on the east side: Sample addresses on Tapo Canyon Road, Yosemite Avenue, Kuehner Drive, Cochran Street and the east end of Los Angeles Avenue, plus a point on Santa Susana Pass Road, geocode to the City in 93063, while a Box Canyon Road point returns no city.

Unincorporated parcels follow County rules

Off City land, County zoning applies. The County’s online zoning lookup covers unincorporated parcels by Assessor Parcel Number, and a County building records request, by address or parcel number, can pull a home’s permit history, which the County searches within 10 days.

Water can cross the line too. The Housing Element says District No. 8, the City-run water district, also serves adjacent unincorporated areas southeast and north of the City boundary, so confirm the water agency, and ask whether the house connects to a sewer or uses a septic system, early in escrow.

93063 questions, answered

Which houses for sale in Simi Valley, CA 93063 sit outside City limits?

Any on the County side of the line, such as homes in the Santa Susana Knolls area or near the Box Canyon Road point the geocoder places outside any city. A Simi Valley mailing address does not settle which rules apply, so check the parcel. Compare 93065 homes for sale, the City’s western ZIP, or browse every Simi Valley home for sale.

How do I check a 93063 parcel’s fire hazard zone?

Ventura County Fire, which serves Simi Valley and the unincorporated county, points to the 2025 combined state and local Fire Hazard Severity Zone map viewer. If a parcel carries two ratings, the higher one governs. Under Ordinance 34, as of 2026, anyone selling a parcel in either of the two highest zones must give the buyer proof, from a County Fire inspection, that the defensible-space rules are met. A Simi Valley real estate agent can help schedule it.