| Primary address | 9900 Mason Avenue, Chatsworth |
| Alternate address(es) | 9900 N Mason Ave |
| Zip code | 91311 |
| County | Los Angeles |
| Municipality | Los Angeles |
| Neighborhood | Chatsworth |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 01/29/1993 |
| Sale price | $160,000 |
| Arm's length | Register |
| Current property tax | $4,642 |
| Building sqft | 2,203 |
| Building class | Single Family Residence (0100) |
| Acreage | 0.195
|
| Units | 1 |
| Year built | 1957 |
| Year last altered | Register |
| Bedrooms | 3 |
| Bathrooms | 4 |
| Heating/AC | Central heating |
| Zoning district | Suburban (RS) |
| 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.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
9900 Mason Avenue, Chatsworth, CA 91311 was built in 1957 and has a total of 2,203 square feet.
What is the assessed value of 9900 Mason Avenue, Chatsworth, CA 91311 and the property tax paid?Assessed at $349,738, the tax amount paid for 9900 Mason Avenue, Chatsworth, CA 91311 is $4,152.
When was 9900 Mason Avenue, Chatsworth, CA 91311 last sold?9900 Mason Avenue, Chatsworth, CA 91311 was last sold in 07/08/2025.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 9900 Mason Avenue, Chatsworth, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 01/29/1993 | $160,000 | Register | Register |
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.
R: Recorded date
D: Document date
Access detailed property tax data for 9900 Mason Avenue, Chatsworth, CA 91311. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Base tax | $4,153 |
| Current property tax | $4,642 |
| Market value | $349,738 |
| Tax per sqft | $2 |
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 | Register |
| 03694 | La County Regional Park And Open Space District | Register |
| 18851 | Los Angeles City Light Maintenance | Register |
| 03071 | Los Angeles County Flood Control | Register |
| 00170 | Los Angeles County Trauma/Emerg Srvs | Register |
Here's the assessment & property tax history for 9900 Mason Avenue, 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 | $349,738 | 1.1874 | $4,153 | +0.94% |
| 2024-2025 | $342,914 | 1.1997 | $4,114 | +2.03% |
| 2023-2024 | $336,191 | 1.1994 | $4,032 | +4.97% |
| 2022-2023 | $329,600 | 1.1655 | $3,841 | +1.15% |
| 2021-2022 | $323,138 | 1.1752 | $3,798 | -1.05% |
The complete history of permits filed for 9900 Mason Avenue, 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.
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.
Create a free account to unlock extended information for 9900 Mason Avenue, 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) | 0.2, X (See more on map) |
| Fire hazard zone | See more on map |
| Faults and tsunami inundation zone map | Register |
| Landslides and liquefaction map | Register |
| Seismic gas shut off valve installed | Register |
| Earthquake-induced liquefaction area | Register |
Access the detailed traffic volume map for 9900 Mason Avenue, 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 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Superior Street Elementary School | 9 | Charter | K-5 | 439 | 0.31 |
| Germain Academy For Academic Achievement | 6 | Public | K-5 | 573 | 0.88 |
| Cds Elementary School | NR | Public | K-6 | 4 | 0.93 |
| Our Community Charter School | 7 | Charter | K-8 | 405 | 0.93 |
| East Valley Academy | NR | Private | 1-12 | 31 | 1.52 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Ernest Lawrence Middle School | 5 | Public | 6-8 | 1,073 | 0.77 |
| William Tell Aggeler Opportunity High School | 1 | Public | 7-12 | 58 | 0.91 |
| Aggeler Community Day School | 3 | Public | 7-12 | 23 | 0.91 |
| Our Community Charter School | 7 | Charter | K-8 | 405 | 0.93 |
| East Valley Academy | NR | Private | 1-12 | 31 | 1.52 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Chatsworth Charter High School | 7 | Charter | 9-12 | 1,696 | 0.34 |
| Stoney Point Continuation School | 2 | Public | 9-12 | 107 | 0.51 |
| William Tell Aggeler Opportunity High School | 1 | Public | 7-12 | 58 | 0.91 |
| Aggeler Community Day School | 3 | Public | 7-12 | 23 | 0.91 |
| East Valley Academy | NR | Private | 1-12 | 31 | 1.52 |
Data provided by GreatSchools.org © 2025. All rights reserved.
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