Los Angeles County  »  21734 Septo St

21734 Septo Street, Chatsworth, CA 91311 Property Information

21734 Septo Street, Chatsworth, CA 91311 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Photo & Map Show Hide

21734 Septo Street, Chatsworth, CA 91311
static Mapbox map

Address

Primary address 21734 Septo Street, Chatsworth
Alternate address(es) 21734 W Septo St
Zip code 91311
County Los Angeles
Municipality Los Angeles
Neighborhood Chatsworth

Sales & Tax Overview for 21734 Septo Street, Chatsworth

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 08/14/2020
Sale price $26,400,000
Arm's length
Current property tax $90,168

Lot & Building Information for 21734 Septo Street, Chatsworth

Building sqft 20,942
Building class Five or More Apartments or Units - 4 Stories or Less with Pool (0501)
Acreage 0.477
Units 24
Year built 1977
Year last altered 1979
Stories 4
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
Weed hazard No
School district Los Angeles Unified School District

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab. For more property insights, including its Energy Star score, its Existing Buildings Energy and Water Efficiency Program (EBEWE) status, and additional energy and water usage data, create an account.

Other Property Data for 21734 Septo Street, Chatsworth

Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:

  • • Improvements for 21734 Septo Street, Chatsworth , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
Unlock all property data with a free account.
Sign up

About 21734 Septo Street, Chatsworth

What is the year built & the total sq. ft. for 21734 Septo Street, Chatsworth, CA 91311?

21734 Septo Street, Chatsworth, CA 91311 was built in 1977 and has a total of 20,942 square feet.

What is the assessed value of 21734 Septo Street, Chatsworth, CA 91311 and the property tax paid?

Assessed at $7,289,930, the tax amount paid for 21734 Septo Street, Chatsworth, CA 91311 is $86,560.

When was 21734 Septo Street, Chatsworth, CA 91311 last sold and what was the last sale price?

21734 Septo Street, Chatsworth, CA 91311 was last sold in 08/14/2020 for $26,400,000.

How many residential units does this building have?

This building has 24 residential unit(s).

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

Real Estate Reports:
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Past Sales & Property History for 21734 Septo Street, Chatsworth

Create a free account to view the complete sales history for 21734 Septo Street, Chatsworth, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
08/14/2020 $26,400,000
07/28/2000 $6,733,067
       
       
       
Access the complete sales history for 21734 Septo Street, Chatsworth with a free account.
Sign up

Title Documents for 21734 Septo Street, Chatsworth

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
08/14/2020 Grant Deed
(Sale for consideration - full DTT - 4 parcels in multiple sale)
07/28/2000 Deed
(Sale for consideration - full DTT - 4 parcels in multiple sale)
               
               
               
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 21734 Septo Street, Chatsworth

Access detailed property tax data for 21734 Septo Street, Chatsworth, CA 91311. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $86,561
Current property tax $90,168
Market value $7,289,930

Special Assessments And Penalties for 21734 Septo Street, Chatsworth

Special Assessments

Abatements, financial assistance programs and non-ad valorem taxes levied as special taxes/direct assessments are applicable for this property.

Code Description Tax levied
06181 Greater L.A. County Vector Control District
00194 Health License Fees
03694 La County Regional Park And Open Space District
18851 Los Angeles City Light Maintenance
03071 Los Angeles County Flood Control

Assessment History for 21734 Septo Street, Chatsworth

Here's the assessment & property tax history for 21734 Septo Street, Chatsworth, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $7,289,930 1.1874 $86,561 +0.95%
2024-2025 $7,147,050 1.1997 $85,743 +2.02%
2023-2024 $7,006,972 1.1994 $84,042 +4.97%
2022-2023 $6,869,640 1.1655 $80,066 +1.16%
2021-2022 $6,735,000 1.1752 $79,150 +75.04%

Permits for 21734 Septo Street, Chatsworth

The complete history of permits filed for 21734 Septo Street, Chatsworth, including new construction or demolition permits, complaints, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Issued Permit Type Sub type Valuation Expires Status
03/08/2021
01/21/2021
01/21/2021
12/11/2017
09/20/2017
04/09/2012
04/09/2012
04/09/2012
02/12/2001
09/26/2000
Unlock the permit history for 21734 Septo Street, Chatsworth
Sign up

Los Angeles residential market stats

Median Sale Price
$1,000,000
1% YoY
Median Price/Sqft
$663
1.5% YoY
Los Angeles County Median Sale Price
$872,000
0.2% YoY

Access a detailed real estate market overview of Los Angeles so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Los Angeles and compare it to other neighborhoods in Los Angeles County.

Check out recently sold homes in LOS-ANGELES and see how their prices compare.

Demographics by Zip Code

Total population 40,898
Median age 42.3
Average household income $148,139
Family households 71.4%
Occupied housing units 14,561
Owner occupied units 66.6%
Average number of people per household 2.75
Median year structure built 1974
Median value for units with a mortgage $912,000
Median value for units without a mortgage $799,000

Risk

Create a free account to unlock extended information for 21734 Septo Street, Chatsworth, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map
Seismic gas shut off valve installed
Earthquake-induced liquefaction area

Transportation

Access the detailed traffic volume map for 21734 Septo Street, Chatsworth to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Neighbors for 21734 Septo Street, Chatsworth

Here are the neighbors for 21734 Septo Street, Chatsworth.

Address Square feet Purchase date Purchase price
21744 Septo St, Chatsworth 15,086 02/26/1999 $940,000
10128 Independence Ave, Chatsworth 1,776 04/01/2025
10110 Independence Ave, Chatsworth 1,880 02/28/2012 $360,000
10100 Independence Ave, Chatsworth 1,796
21727 Lassen St, Chatsworth 6,238 11/07/2019
21741 Lassen St, Chatsworth 6,238 07/13/2018 $1,568,000
21721 Septo St, Chatsworth 83,094
10122 Independence Ave, Chatsworth 2,272 10/31/2018
21730 Septo St, Chatsworth 20,942 08/14/2020 $26,400,000
21754 Vintage St, Chatsworth 1,933 01/13/2021 $655,000
10142 Independence Ave, Chatsworth 2,076 11/10/2025
21700 Septo St, Chatsworth 20,942 08/14/2020 $26,400,000
21733 Lassen St, Chatsworth 6,238 03/10/2006
21760 Vintage St, Chatsworth 1,573 06/11/2021
10116 Independence Ave, Chatsworth 1,696 11/18/2016
21712 Septo St, Chatsworth 20,942 08/14/2020 $26,400,000
21747 Lassen St, Chatsworth 5,881 02/01/2012
21748 Vintage St, Chatsworth 1,448 10/28/2022
9906 Topanga Canyon Blvd, Chatsworth 768 03/28/2018
10148 Independence Ave, Chatsworth 1,489 05/01/2008 $425,000

Nearby ZIP Codes for 21734 Septo Street, Chatsworth

Not sure if we cover all the data-points you need? View sample full report View sample full report