| Primary address | 850 Penarth Avenue, Walnut |
| Zip code | 91789 |
| County | Los Angeles |
| Municipality | Diamond Bar |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 11/21/2012 |
| Sale price | $345,000 |
| Arm's length | Register |
| Current property tax | $5,655 |
| Building sqft | 1,338 |
| Building class | Single Family Residence (0100) |
| Acreage | 0.189
|
| Units | 1 |
| Year built | 1963 |
| Year last altered | Register |
| Bedrooms | 3 |
| Bathrooms | 2 |
| Heating/AC | Central heating |
| Zoning district | Low Medium Density Residential (RLM) |
| Weed hazard | No |
| School district | Walnut Valley 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:
850 Penarth Avenue, Walnut, CA 91789 was built in 1963 and has a total of 1,338 square feet.
What is the assessed value of 850 Penarth Avenue, Walnut, CA 91789 and the property tax paid?Assessed at $433,327, the tax amount paid for 850 Penarth Avenue, Walnut, CA 91789 is $5,074.
When was 850 Penarth Avenue, Walnut, CA 91789 last sold?850 Penarth Avenue, Walnut, CA 91789 was last sold in 07/11/2024.
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 850 Penarth Avenue, Walnut, including title documents, transfer conditions, mortgages and liens.
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 850 Penarth Avenue, Walnut, CA 91789. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Base tax | $5,075 |
| Current property tax | $5,655 |
| Market value | $433,327 |
| Tax per sqft | $4 |
Abatements, financial assistance programs and non-ad valorem taxes levied as special taxes/direct assessments are applicable for this property.
| Code | Description | Tax levied |
|---|---|---|
| 06221 | County Sanitation District #21 | Register |
| 14651 | Diamond Bar District #38 | Register |
| 02824 | Diamond Bar Lighting District | Register |
| 06181 | Greater L.A. County Vector Control District | Register |
| 03694 | La County Regional Park And Open Space District | Register |
Here's the assessment & property tax history for 850 Penarth Avenue, Walnut, 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 | $433,327 | 1.1711 | $5,075 | +3.43% |
| 2024-2025 | $424,831 | 1.1549 | $4,906 | +2.57% |
| 2023-2024 | $416,502 | 1.1485 | $4,784 | +2.10% |
| 2022-2023 | $408,336 | 1.1474 | $4,685 | +1.74% |
| 2021-2022 | $400,330 | 1.1502 | $4,605 | +1.32% |
The complete history of permits filed for 850 Penarth Avenue, Walnut, 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 Walnut so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Walnut and compare it to other neighborhoods in Los Angeles County.
Create a free account to unlock extended information for 850 Penarth Avenue, Walnut, 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 | Register |
| Landslides and liquefaction map | Register |
Access the detailed traffic volume map for 850 Penarth Avenue, Walnut 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) |
|---|---|---|---|---|---|
| Discovery World Montessori | NR | Private | K-4 | 19 | 0.13 |
| Discovery World Montessori School | NR | Private | K-6 | 70 | 0.14 |
| Walnut Elementary School | 8 | Public | K-5 | 671 | 0.30 |
| Walnut Valley Adult | NR | Public | 0 | 0.34 | |
| Institute Of Knowledge | NR | Private | K-8 | 127 | 0.61 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Walnut Valley Adult | NR | Public | 0 | 0.34 | |
| Institute Of Knowledge | NR | Private | K-8 | 127 | 0.61 |
| Institute of Knowledge | NR | Private | K-10 | 265 | 0.63 |
| South Pointe Middle School | 8 | Public | 6-8 | 879 | 0.69 |
| International Cross Academy | NR | Private | 1-12 | 0 | 0.82 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Walnut Valley Adult | NR | Public | 0 | 0.34 | |
| Institute of Knowledge | NR | Private | K-10 | 265 | 0.63 |
| Ron Hockwalt Academies (Continuation) School | NR | Public | 9-12 | 41 | 0.68 |
| International Cross Academy | NR | Private | 1-12 | 0 | 0.82 |
| Walnut High School | 10 | Public | 9-12 | 2,158 | 1.41 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 850 Penarth Avenue, Walnut.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 849 Penarth Ave, Walnut | 1,548 | 05/20/2021 | $832,000 |
| 847 Pinefalls Ave, Walnut | 1,389 | ||
| 859 Penarth Ave, Walnut | 1,389 | 06/26/2025 | $975,500 |
| 842 Penarth Ave, Walnut | 1,266 | 08/02/2005 | |
| 861 Pinefalls Ave, Walnut | 1,188 | 05/13/2021 | |
| 856 Darius Ave, Walnut | 2,283 | 10/01/2010 | $560,005 |
| 835 Pinefalls Ave, Walnut | 1,762 | 05/08/1998 | $175,000 |
| 853 Pinefalls Ave, Walnut | 1,266 | 09/20/2010 | $375,003 |
| 853 Penarth Ave, Walnut | 1,266 | 01/06/2020 | |
| 834 Darius Dr, Walnut | 1,672 | 04/14/2025 | |
| 850 Darius Dr, Walnut | 1,753 | 04/08/2020 | $726,000 |
| 841 Pinefalls Ave, Walnut | 1,686 | 12/04/2009 | $400,004 |
| 20869 Moonlake St, Walnut | 1,669 | 11/06/2025 | $860,000 |
| 843 Penarth Ave, Walnut | 1,266 | 09/29/2020 | |
| 854 Penarth Ave, Walnut | 1,389 | 09/13/2001 | |
| 835 Penarth Ave, Walnut | 1,389 | 07/17/2020 | $615,000 |
| 20875 Moonlake St, Walnut | 1,266 | 08/15/2008 | |
| 842 Darius Dr, Walnut | 1,389 | 03/06/2014 | $570,000 |
| 832 Penarth Ave, Walnut | 1,188 | 06/23/2015 | |
| 867 Pinefalls Ave, Walnut | 1,389 | 01/04/2007 |