| Primary address | 21 West Harriet Street, Altadena |
| Alternate address(es) | 23 W Harriet St |
| Zip code | 91001 |
| County | Los Angeles |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 01/28/2002 |
| Sale price | $215,002 |
| Arm's length | Register |
| Current property tax | $3,247 |
| Building sqft | 996 |
| Total sqft | 1,704 |
| Building class | Double, Duplex or Two Units - 4 Stories or Less (0200) |
| Acreage | 0.135 |
| Buildings on lot | 2 |
| Units | 2 |
| Year last altered | Register |
| Stories | 4 |
| Bedrooms | 2 |
| Bathrooms | 1 |
| Heating/AC | Floor/wall heating |
| Zoning district | Two-Family Residence (R-2) |
| Weed hazard | No |
| School district | Pasadena 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:
This Double, Duplex or Two Units - 4 Stories or Less (0200) located at 21 West Harriet Street, Altadena, CA 91001 has a total of 996 square feet.
What is the assessed value of 21 West Harriet Street, Altadena, CA 91001 and the property tax paid?Assessed at $250,781, the tax amount paid for 21 West Harriet Street, Altadena, CA 91001 is $2,739.
When was 21 West Harriet Street, Altadena, CA 91001 last sold?21 West Harriet Street, Altadena, CA 91001 was last sold in 07/01/2025.
How many residential units does this building have?This building has 2 residential unit(s).
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 21 West Harriet Street, Altadena, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
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 21 West Harriet Street, Altadena, CA 91001. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Base tax | $2,740 |
| Current property tax | $3,247 |
| Market value | $250,781 |
| 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 |
|---|---|---|
| 05713 | Altadena Library District Cfd No. 2020-1 | Register |
| 06217 | County Sanitation District #17 | Register |
| 00744 | Los Angeles County Fire Department | Register |
| 03071 | Los Angeles County Flood Control | Register |
| 02800 | Los Angeles County Lighting District | Register |
Here's the assessment & property tax history for 21 West Harriet Street, Altadena, 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 | $250,781 | 1.0924 | $2,740 | -56.42% |
| 2024-2025 | $574,120 | 1.095 | $6,287 | +0.83% |
| 2023-2024 | $562,864 | 1.1077 | $6,235 | +3.68% |
| 2022-2023 | $551,828 | 1.0897 | $6,013 | +4.25% |
| 2021-2022 | $541,009 | 1.0661 | $5,768 | +4.38% |
The complete history of permits filed for 21 West Harriet Street, Altadena, 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.
Create a free account to unlock extended information for 21 West Harriet Street, Altadena, 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 21 West Harriet Street, Altadena 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) |
|---|---|---|---|---|---|
| James Hawkins Educational Program | NR | Private | 5-12 | 0 | 0.06 |
| Star Children's Academy | NR | Private | K-6 | 0 | 0.09 |
| Pasadena Waldorf School | NR | Private | PK-12 | 281 | 0.30 |
| Pasadena Waldorf School | NR | Private | PK-12 | 281 | 0.30 |
| Renaissance Academy | NR | Private | 1-12 | 40 | 0.48 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| James Hawkins Educational Program | NR | Private | 5-12 | 0 | 0.06 |
| Pasadena Waldorf School | NR | Private | PK-12 | 281 | 0.30 |
| Renaissance Academy | NR | Private | 1-12 | 40 | 0.48 |
| Odyssey Charter School - South | 7 | Charter | K-8 | 342 | 0.48 |
| Alma Fuerte Public | 3 | Charter | K-8 | 145 | 0.48 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| James Hawkins Educational Program | NR | Private | 5-12 | 0 | 0.06 |
| Pasadena Waldorf School | NR | Private | PK-12 | 281 | 0.30 |
| Renaissance Academy | NR | Private | 1-12 | 40 | 0.48 |
| Pasadena Waldorf High School | NR | Private | PK-12 | 307 | 0.69 |
| Aveson Global Leadership Academy | 3 | Charter | 6-12 | 222 | 0.73 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 21 West Harriet Street, Altadena.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 61 W Harriet St, Altadena | 1,364 | 06/13/2022 | $860,000 |
| 33 W Harriet St, Altadena | 1,060 | 07/24/2015 | $520,000 |
| 44 W Mendocino St, Altadena | 893 | 03/06/2013 | $335,500 |
| 53 W Harriet St, Altadena | 1,152 | 07/29/2021 | |
| 65 W Harriet St, Altadena | 1,378 | 06/11/2014 | $549,000 |
| 2639 Fair Oaks Ave, Altadena | 2,176 | 12/22/2017 | |
| 52 W Mendocino St, Altadena | 1,149 | 04/06/2001 | $174,001 |
| 47 W Harriet St, Altadena | 2,316 | 01/28/2025 | |
| 2645 Fair Oaks Ave, Altadena | 1,134 | 10/27/2005 | |
| 142 W Mendocino St, Altadena | 1,402 | 07/12/1999 | |
| 2617 Fair Oaks Ave, Altadena | 05/12/2022 | ||
| 2631 Fair Oaks Ave, Altadena | 2,585 | 08/05/2004 | |
| 38 W Mendocino St, Altadena | 1,176 | 11/29/2021 | |
| 60 W Mendocino St, Altadena | 1,100 | 10/08/2009 | |
| 148 W Mendocino St, Altadena | 1,447 | 08/15/2019 | |
| 30 W Mendocino St, Altadena | 1,080 | 05/18/2021 | |
| 41 W Harriet St, Altadena | 1,118 | 10/09/2025 | $412,000 |
| 154 W Mendocino St, Altadena | 976 | 03/02/2023 | |
| 2633 Fair Oaks Ave, Altadena | 1,500 | 03/29/2017 | |
| 2615 Fair Oaks Ave, Altadena | 5,250 | 05/12/2022 |