21250 Fountain Springs Rd is a 1,288 square foot house on a 7,738 square foot lot with 4 bedrooms and 2 bathrooms. Based on Redfin's Diamond Bar data, we estimate the home's value is $870,364.
Single-familyProperty Type
1962Year Built
7,738 sq ftLot Size
$676Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$870,364
$1,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.9% lower than the average sale price ($945K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$1,613 (+10.3%)
$26,972 + $56,231
$83,203
2024
$1,463 (+2.0%)
$26,444 + $55,129
$81,573
2023
$1,435 (+2.3%)
$25,926 + $54,049
$79,975
2022
$1,402 (+2.4%)
$25,418 + $52,990
$78,408
2021
$1,368 (+1.1%)
$24,920 + $51,951
$76,871
2020
$1,353 (+1.7%)
$24,432 + $50,933
$75,365
2019
$1,330 (+8.7%)
$24,182 + $50,411
$74,593
2018
$1,224 (+3.9%)
$23,708 + $49,423
$73,131
2017
$1,178 (+32.5%)
$22,789 + $47,504
$70,293
2016
$889
$22,789 + $47,504
$70,293
2015
$889
$22,343 + $46,573
$68,916
2010
$889 (−0.1%)
$18,608 + $38,783
$57,391
2009
$890
$18,608 + $38,783
$57,391
2008
$890
$18,608 + $38,783
$57,391
Tax history for 21250 Fountain Springs Rd
Year
Property tax
Land + Additions
Assessment*
2025
$1,613 (+10.3%)
$26,972 + $56,231
$83,203
2024
$1,463 (+2.0%)
$26,444 + $55,129
$81,573
2023
$1,435 (+2.3%)
$25,926 + $54,049
$79,975
2022
$1,402 (+2.4%)
$25,418 + $52,990
$78,408
2021
$1,368 (+1.1%)
$24,920 + $51,951
$76,871
2020
$1,353 (+1.7%)
$24,432 + $50,933
$75,365
2019
$1,330 (+8.7%)
$24,182 + $50,411
$74,593
2018
$1,224 (+3.9%)
$23,708 + $49,423
$73,131
2017
$1,178 (+32.5%)
$22,789 + $47,504
$70,293
2016
$889
$22,789 + $47,504
$70,293
2015
$889
$22,343 + $46,573
$68,916
2010
$889 (−0.1%)
$18,608 + $38,783
$57,391
2009
$890
$18,608 + $38,783
$57,391
2008
$890
$18,608 + $38,783
$57,391
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
RLM
Low/Medium Density Residential District
The RLM zoning district is intended primarily for existing subdivided areas developed with detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be five dwellings per gross acre. The RLM zoning district is consistent with the low density residential land use category of the general plan.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure
Fire house
Police station
Park & open space
Property details
Interior
Heating & Cooling
Heating Type: Central
Exterior
Property Information
Subdivision Name: 25986
Living Sq. Ft: 1,288
# of Units: 1
Legal Description: TRACT NO 25986 LOT 6
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,738
Legal Lot Number: 6
Municipality Name: DIAMOND BAR
Acres: 0.1776
Depth Footage: 100
Front Footage: 76
Zoning Code: LCR171/2
County Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 1,288
Stories: —
Lot Size: 7,738 square feet
Style: Single Family Residential
Year Built: 1962
Year Renovated: 1962
County: Los Angeles County
APN: 8285015006
Home facts updated by county records on Oct 6, 2026
Around this home
Schools
Evergreen Elementary School
Public K-5 • Assigned • 0.3mi
9/10
Chaparral Middle School
Public 6-8 • Assigned • 1.7mi
10/10
Diamond Bar High School
Public 9-12 • Assigned • 0.2mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
5/10 Fire Factor
3% chance of being in a wildfire in next 30 years
6/10 Heat Factor
7 days above 98° expected this year, 21 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
6/10 Air Factor
10 unhealthy days expected this year, 13 days in 30 years
Provided by First Street
Historical weather
Diamond Bar, CA • 91765
Average low and high temperatures (°F)
68
50
71
52
73
53
72
53
76
57
81
60
86
63
89
65
85
65
80
59
71
52
69
51
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.5 hours in
June and 6.9 hours in December, placing it above the
U.S. average for solar exposure.
9.5 hrs
6.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$827,000 – $1.00M
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