Los Angeles County  »  10817 Key West Ave

10817 Key West Avenue, Porter Ranch, CA 91326 Property Information

10817 Key West Avenue, Porter Ranch, CA 91326 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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10817 Key West Avenue, Porter Ranch, CA 91326
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Address

Primary address 10817 Key West Avenue, Porter Ranch
Alternate address(es) 10817 N Key West Ave
Zip code 91326
County Los Angeles
Municipality Los Angeles
Neighborhood Porter Ranch

Sales & Tax Overview for 10817 Key West Avenue, Porter Ranch

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

Sale date 01/10/2003
Sale price $412,004
Arm's length
Current property tax $7,705

Lot & Building Information for 10817 Key West Avenue, Porter Ranch

Building sqft 1,938
Building class Single Family Residence (0100)
Acreage 0.174
Units 1
Year built 1964
Year last altered
Bedrooms 4
Bathrooms 3
Heating/AC Central refrigeration & heating
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Suburban (RS)
Weed hazard No
School district Los Angeles Unified School District

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Other Property Data for 10817 Key West Avenue, Porter Ranch

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  • • Improvements for 10817 Key West Avenue, Porter Ranch , including their type, square footage, grade and when they were built.
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About 10817 Key West Avenue, Porter Ranch

What is the year built & the total sq. ft. for 10817 Key West Avenue, Porter Ranch, CA 91326?

10817 Key West Avenue, Porter Ranch, CA 91326 was built in 1964 and has a total of 1,938 square feet.

What is the assessed value of 10817 Key West Avenue, Porter Ranch, CA 91326 and the property tax paid?

Assessed at $613,627, the tax amount paid for 10817 Key West Avenue, Porter Ranch, CA 91326 is $7,286.

When was 10817 Key West Avenue, Porter Ranch, CA 91326 last sold and what was the last sale price?

10817 Key West Avenue, Porter Ranch, CA 91326 was last sold in 01/10/2003 for $412,004.

Ownership Information

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Real Estate Reports:
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
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.
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Past Sales & Property History for 10817 Key West Avenue, Porter Ranch

Create a free account to view the complete sales history for 10817 Key West Avenue, Porter Ranch, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
01/10/2003 $412,004

Title Documents for 10817 Key West Avenue, Porter Ranch

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
05/19/2025 Assignment of Rents
Trust Deed
06/15/2040
08/30/2022 Trust Deed 09/25/2047
09/01/2020 Reconveyance
Substitution Trustee
08/21/2020 Trust Deed 09/01/2050
08/08/2016 Trust Deed 08/15/2026
05/15/2015 Trust Deed 06/01/2046
03/27/2014 Subordination
02/16/2011 Trust Deed
02/16/2011 Subordination
07/20/2005 Trust Deed
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R: Recorded date
D: Document date

Property Taxes for 10817 Key West Avenue, Porter Ranch

Access detailed property tax data for 10817 Key West Avenue, Porter Ranch, CA 91326. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $7,286
Current property tax $7,705
Market value $613,627
Tax per sqft $4

Special Assessments And Penalties for 10817 Key West Avenue, Porter Ranch

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
03694 La County Regional Park And Open Space District
18851 Los Angeles City Light Maintenance
03071 Los Angeles County Flood Control
00170 Los Angeles County Trauma/Emerg Srvs

Assessment History for 10817 Key West Avenue, Porter Ranch

Here's the assessment & property tax history for 10817 Key West Avenue, Porter Ranch, 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 $613,627 1.1874 $7,286 +0.95%
2024-2025 $601,610 1.1997 $7,218 +2.03%
2023-2024 $589,814 1.1994 $7,074 +4.97%
2022-2023 $578,250 1.1655 $6,740 +1.16%
2021-2022 $566,912 1.1752 $6,662 -1.07%

Permits for 10817 Key West Avenue, Porter Ranch

The complete history of permits filed for 10817 Key West Avenue, Porter Ranch, 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
03/26/2004
03/15/2004
07/10/2000
             
             
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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.

Risk

Create a free account to unlock extended information for 10817 Key West Avenue, Porter Ranch, 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 10817 Key West Avenue, Porter Ranch 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

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Beckford Charter for Enriched Studies 10 Charter K-5 594 0.28
Cornerstone Christian Academy NR Private 1-12 11 0.68
Our Community Charter School 7 Charter K-8 405 1.12
Cds Elementary School NR Public K-6 4 1.12
Darby Avenue Charter School 9 Public K-5 406 1.17

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Cornerstone Christian Academy NR Private 1-12 11 0.68
Alfred B. Nobel Charter Middle School 10 Charter 6-8 1,940 1.09
Our Community Charter School 7 Charter K-8 405 1.12
Granada Hills Charter High School 10 Charter K-12 5,869 1.69
Granada Preparatory School NR Private PK-8 106 1.86

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Cornerstone Christian Academy NR Private 1-12 11 0.68
Granada Hills Charter High School 10 Charter K-12 5,869 1.69
Chatsworth Charter High School 7 Charter 9-12 1,696 2.05
Sierra Canyon School NR Private PK, K-12 1,011 2.17
Stoney Point Continuation School 2 Public 9-12 107 2.23

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 10817 Key West Avenue, Porter Ranch

Here are the neighbors for 10817 Key West Avenue, Porter Ranch.

Address Square feet Purchase date Purchase price
10833 Key West Ave, Porter Ranch 1,470 06/25/2021 $910,000
10847 Key West Ave, Porter Ranch 2,386 03/04/2021
10901 Key West Ave, Porter Ranch 2,501 12/13/2023
10930 Des Moines Ave, Porter Ranch 2,154 01/07/2016
10852 Des Moines Ave, Porter Ranch 2,154 07/29/1997
10901 Des Moines Ave, Porter Ranch 1,938 05/25/2005
10827 Key West Ave, Porter Ranch 2,154 07/22/2014 $610,000
10929 Des Moines Ave, Porter Ranch 2,154 03/11/2021
19325 Los Alimos St, Porter Ranch 1,641 10/03/2016
10900 N Des Moines Ave, Porter Ranch 2,501 04/03/2026 $1,100,000
10828 Des Moines Ave, Porter Ranch 2,154 12/29/2022 $931,500
10846 Des Moines Ave, Porter Ranch 1,470 06/22/2015
10917 Des Moines Ave, Porter Ranch 2,501 11/27/2017 $730,000
19313 Los Alimos St, Porter Ranch 2,501 03/05/2021 $1,010,000
10841 Des Moines Ave, Porter Ranch 2,154 05/03/2021 $925,000
10839 Key West Ave, Porter Ranch 2,154 06/26/2024
19301 Los Alimos St, Porter Ranch 2,154 05/05/2017
10925 Des Moines Ave, Porter Ranch 1,938 10/19/2022
10836 Des Moines Ave, Porter Ranch 2,501 12/03/2019 $865,000
10911 Des Moines Ave, Porter Ranch 2,374 05/01/2007 $755,000

Nearby ZIP Codes for 10817 Key West Avenue, Porter Ranch

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