Santa Susana Knolls is the hilly, tree-covered area at the east end of Simi Valley, south of the Metrolink rail line. It started in the 1920s as vacation lots for people from the city, and today it's a small rural community of about 1,160 people with one-of-a-kind homes, winding roads, and bigger, uneven lots. It has a Simi Valley mailing address (93063), but it sits outside the city limits in unincorporated Ventura County.
We're Steve Hise and Tricia Garcia, and we've spent 10 years helping people buy and sell across Simi Valley and Ventura County. This page covers what makes the Knolls different, and what to check before you buy or sell here.
In the early 1920s, a developer named Mortimer laid out "Mortimer Park," vacation-size lots where city people could build country homes. The name later changed to Santa Susana Knolls. The area takes its name from the old railroad town of Santa Susana, which grew up around the Southern Pacific depot after the railroad tunnel through the Santa Susana Mountains opened in 1904. The depot was later moved and is now a museum near the Knolls.
The Knolls was never a single tract, so no two streets look the same. You'll find rustic older homes, remodeled homes, and newer custom builds on hillside lots of every shape and size, in one of the hilliest and most wooded parts of the valley. Roads are narrow and winding in places. Many buyers come here for more land, more privacy, and a rural feel, while still being minutes from shopping in east Simi Valley.
The Simi Valley Metrolink and Amtrak station on Los Angeles Avenue is a short drive away, which is a real plus if you commute toward Los Angeles. The 118 freeway is a short drive, and east Simi Valley shopping is minutes away.
Prices in the Knolls swing more than almost anywhere in Simi Valley, because lot size, condition, permits, septic, and views all vary so much. Citywide averages don't tell you much here. For a real number, ask us for recent Knolls sales that match your home. For context, the Simi Valley median sale price for all home types was $814,612 for the three months ending September 2026 (Redfin).
A Knolls home sells best when buyers get clear answers up front: septic or sewer, permit history, zoning, and lot lines. We help you gather those before you list so buyers can move with confidence. If you're selling to buy your next home, we tell every client the same thing: you are never going to be left without a home. We line up the sale and your next purchase to close together, so you move once.
See also: How much does it cost to sell a house in Simi Valley? and Selling a house as-is in Simi Valley
Tell us what you're after: land, privacy, a view, room for animals, or a project home. We'll set up a search, check septic, zoning, and permit history on each home, and tour them with you in person.
Talk with Steve and TriciaNo. Santa Susana Knolls has a Simi Valley mailing address (93063), but it is in unincorporated Ventura County, south of the Metrolink rail line. Permits and zoning go through the county.
Some do. Check the listing and disclosures for each home, and get a septic inspection if the home is not on sewer.
It started in the early 1920s as Mortimer Park, a development of vacation-size lots for country homes, and was later renamed Santa Susana Knolls.
The Santa Susana census-designated place, which covers the Knolls, had 1,160 residents in the 2020 Census.
Yes. The Simi Valley Metrolink and Amtrak station on Los Angeles Avenue is a short drive away.
Steve Hise and Tricia Garcia of Real Estate Toolbox at eXp Realty help buyers and sellers across Simi Valley, including the Knolls. Call or text 805-424-6226 or schedule at realestatetoolbox.com/schedule.
Exploring more of Simi Valley? See our Simi Valley neighborhoods guide.