Lake Manor
Lake Manor is a small unincorporated community in the rocky Simi Hills, where Box Canyon Road reaches the Los Angeles County line above Chatsworth. Its Ventura County side grew from Chatsworth Lake View Annex, a subdivision map recorded in May 1926 with Amos F. and Helen B. Mortimer among its owners of record. The map laid out about 780 small lots. About 80 parcels inside it have buildings today.
Updated · Sources at the bottom of the page · Corrections: send a correction
Lake Manor quick facts
| Also called | Chatsworth Lake Manor |
|---|---|
| Where | Unincorporated Simi Hills community where Box Canyon Road reaches the Ventura–Los Angeles county line above Chatsworth |
| City / jurisdiction | Unincorporated Ventura County (Supervisorial District 4); the community continues south across the line into Los Angeles County |
| Built | Subdivision map recorded May 1926; homes built individually afterward |
| Homes | About 80 parcels with buildings inside the 1926 Annex map (Ventura County parcel records), with more homes just east of it and across the county line |
| Home types | Single-family homes built one lot at a time on lots from a 1926 subdivision map |
| Tracts | 1 named tracts and sub-neighborhoods (list) |
| Parks nearby | Santa Susana Pass State Historic Park |
| School district | Simi Valley Unified School District |
Pins are approximate centers.
Living in Lake Manor
No single builder developed the area. Homes went up one lot at a time, and most of the roughly 430 county parcels inside the old map still have no building, so open hillside separates many of the houses. The 1926 owners did not dedicate the map's drives and trails to public use. More homes sit just east of the Annex along Thompson Avenue, Dennis Way and La Gross Way, and the community continues south across the county line.
Ventura County governs this side, which falls in Supervisorial District 4, the Simi Valley Unified School District and CAL FIRE's State Responsibility Area for wildfire protection. Accounts of the Simi Hills' history also note Chumash pictograph sites near Lake Manor.
The lay of the land
Rocky Simi Hills terrain at the county line, with homes scattered among many empty hillside lots; closer to Chatsworth than to central Simi Valley
Map makers use the name two ways here. Some maps put the Ventura County homes under Box Canyon and use "Lake Manor" only for the Los Angeles County side. This page follows the federal place-name record, which lists Chatsworth Lake Manor in both counties.
Tracts & sub-neighborhoods of Lake Manor
The named tracts, villages and gated enclaves residents, HOAs and the MLS use inside the neighborhood, each with its own page.
Missing a tract? Tell us its name and we'll research it.
Schools near Lake Manor
Public schools nearby
- Knolls Elementary School (Simi Valley Unified)
Being nearby doesn't mean a school is assigned. Attendance goes by address and boundaries change; confirm with the district.
- Simi Valley Unified School District: find the assigned schools for an address
Services, representation & fire safety
These are Simi Valley's area-wide providers; some vary by street.
| Police | Simi Valley Police Department (805) 583-6950 · 3901 Alamo St. Patrols the city. The unincorporated Knolls, Box Canyon, Lake Manor and Sinaloa Lake areas are served by the Ventura County Sheriff's Office. |
|---|---|
| Fire and paramedic | Ventura County Fire Department Covers the city and surrounding county land. Simi Valley stations: 41 (1910 Church St.), 43 (5874 E. Los Angeles Ave.), 44 Wood Ranch (1050 Country Club Dr.), 45 West Simi (790 Pacific Ave.), 46 Tapo (3265 Tapo St.) and 47 Big Sky (2901 Erringer Rd.). |
| Water | Ventura County Waterworks District No. 8 (managed by the City of Simi Valley) (805) 583-6736 · Serves about 60 percent of the city, with the City Council sitting as its board. Most of its water is imported through Calleguas Municipal Water District, supplemented by two district wells in Tapo Canyon. After-hours emergencies: (805) 504-2708. |
| Water | Golden State Water Company Private utility serving the other 40 percent or so of the city. Your bill, or the district's service-area map, shows which supplier serves your address. |
| Sewer | City of Simi Valley Public Works, Sanitation Services Runs the city sewer system and its Water Quality Control Plant. |
| Electricity | Southern California Edison (delivery) and Clean Power Alliance (default power supply) SCE owns the lines and handles outages. Simi Valley joined Clean Power Alliance in 2019, and its default plan is Lean Power; customers can change plans or opt back to SCE supply. |
| Gas | Southern California Gas Company (SoCalGas) |
| Trash and recycling | Waste Management (G.I. Industries) (805) 522-9400 · The city's exclusive franchise hauler under an agreement executed October 10, 2022, covering trash, recycling, green and food waste, bulky-item pickup and outreach. The City Council sets rates each year, and collected waste goes to the Simi Valley Landfill and Recycling Center. Unincorporated areas are outside the city franchise; check with the County of Ventura. |
| Parks and recreation | Rancho Simi Recreation and Park District (805) 584-4400 · 4201 Guardian St. Runs neighborhood and community parks, trails, open space, community centers, the Santa Susana Depot and Strathearn Historical Park. |
| Library | Simi Valley Public Library (805) 526-1735 · 2969 Tapo Canyon Rd., next to City Hall. |
| Animal services | Ventura County Animal Services 1-888-223-7387 · Serves Simi Valley by contract. The Simi Valley Animal Shelter at 670 W. Los Angeles Ave. handles strays, adoptions, licensing and lost pets; the main shelter is in Camarillo. |
| Transit | Simi Valley Transit (805) 583-6456 · Routes 10, 20 and 30, Dial-A-Ride and same-day SVT On Demand rides. Route 10 connects with LA Metro buses in Chatsworth, and VCTC Intercity buses stop at Simi Valley Town Center. |
| Hospital | Adventist Health Simi Valley The city's hospital, with a 24-hour emergency department. |
| Emergency alerts | VC Alert (Ventura County Sheriff's Office of Emergency Services) Free English and Spanish alerts by phone, text and email for any Ventura County address. Sign up at member.everbridge.net, by email at vc.alert@ventura.org or by phone at 888-772-4482. The county also recommends keeping Wireless Emergency Alerts turned on. |
| Neighborhood councils | City of Simi Valley Neighborhood Councils (805) 583-6756 · Four advisory councils; every resident 18 or older is automatically a member. Each usually meets monthly at 7 p.m. in the City Hall Community Room, 2929 Tapo Canyon Rd. |
Who represents you: Mayor Dee Dee Cavanaugh (appointed mayor by the council on January 27, 2025, after Mayor Fred Thomas died in office); Mayor Pro Tem Elaine P. Litster (District 3); Joseph D. Ayala (District 1, appointed February 2025); Mike Judge (District 2); Rocky Rhodes (District 4). · Janice S. Parvin, Ventura County Board of Supervisors District 4, which covers Simi Valley, Moorpark and nearby unincorporated areas including the Knolls, Box Canyon, Bell Canyon and Sinaloa Lake. She won another term outright in the June 2, 2026 primary with about 70 percent of the vote over Ruth Luevanos; the new term begins in January 2027. Office: 980 Enchanted Way #203, Simi Valley, (805) 955-2300. Full list for Simi Valley.
Fire safety: Brush-covered hills ring the city, so neighborhoods along the edges, from Wood Ranch, Long Canyon and Bridle Path in the south to Big Sky, Wild Horse Canyon, Indian Hills and Silverthorne in the north and the Knolls, Box Canyon and Lake Manor in the east, sit… More.
Other neighborhoods in Simi Valley
Homes for sale in and around Lake Manor
Every MLS listing here, with photos, prices and details, is on Properkey.
Browse homes for sale in Simi Valley on Properkey
Real estate information provided by Properkey (CA DRE #01979718 · NMLS #1438783), which is not the listing broker unless stated.
Where these facts come from
- USGS GNIS: Chatsworth Lake Manor (feature 1660474, listed in Ventura and Los Angeles counties) — edits.nationalmap.gov
- Ventura County record map 17-MR-10: Chatsworth Lake View Annex (1926) — maps.ventura.org
- Ventura County GIS: recorded maps layer — maps.ventura.org
- Ventura County GIS: parcels layer — maps.ventura.org
- Ventura County GIS: supervisorial districts — maps.ventura.org
- Ventura County GIS: Simi Valley USD trustee areas — maps.ventura.org
- Ventura County GIS: CAL FIRE State Responsibility Area — maps.ventura.org
- OpenStreetMap: Chatsworth Lake Manor (Ventura County), GNIS 1660474 — openstreetmap.org
- Wikipedia: Simi Valley, California (Chumash pictographs near Lake Manor) — en.wikipedia.org
- California State Parks: Santa Susana Pass State Historic Park — parks.ca.gov
Something wrong or missing on this page? Residents know their streets best. Send a correction and we'll check it against the records and fix it.