21857 Burndale Rd is a 2,257 square foot house on a 2.97 acre lot with 2 bedrooms and 2 bathrooms. Based on Redfin's Sonoma data, we estimate the home's value is $2,402,877.
Single-familyProperty Type
2016Year Built
2.97 acresLot Size
$1,065Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,402,877
$183K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 39.1% higher than the average sale price ($1.73M) 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
$27,732 (+1.8%)
$844,550 + $1,621,467
$2,466,017
2024
$27,237 (+1.9%)
$827,991 + $1,589,674
$2,417,665
2023
$26,722 (+1.4%)
$811,756 + $1,558,504
$2,370,260
2022
$26,352 (+1.9%)
$795,840 + $1,527,946
$2,323,786
2021
$25,869 (+1.4%)
$780,236 + $1,497,987
$2,278,223
2020
$25,517 (+2.2%)
$764,938 + $1,468,615
$2,233,553
2019
$24,977 (+1.8%)
$757,095 + $1,423,557
$2,180,652
2018
$24,529 (+144.7%)
$742,250 + $1,395,645
$2,137,895
2017
$10,025 (+1,967.1%)
$693,821 + $145,177
$838,998
2015
$485 (+0.8%)
$680,217 + $5,076
$685,293
2014
$481 (+0.5%)
$18,794 + $3,793
$22,587
2013
$478 (+1.1%)
$18,794 + $3,793
$22,587
2012
$473 (+0.7%)
$18,710 + $3,776
$22,486
2011
$470 (+0.4%)
$18,344 + $3,702
$22,046
2010
$468 (+0.4%)
$17,985 + $3,630
$21,615
2009
$466 (+1.4%)
$17,851 + $3,603
$21,454
2007
$460
$17,544 + $3,542
$21,086
Tax history for 21857 Burndale Rd
Year
Property tax
Land + Additions
Assessment*
2025
$27,732 (+1.8%)
$844,550 + $1,621,467
$2,466,017
2024
$27,237 (+1.9%)
$827,991 + $1,589,674
$2,417,665
2023
$26,722 (+1.4%)
$811,756 + $1,558,504
$2,370,260
2022
$26,352 (+1.9%)
$795,840 + $1,527,946
$2,323,786
2021
$25,869 (+1.4%)
$780,236 + $1,497,987
$2,278,223
2020
$25,517 (+2.2%)
$764,938 + $1,468,615
$2,233,553
2019
$24,977 (+1.8%)
$757,095 + $1,423,557
$2,180,652
2018
$24,529 (+144.7%)
$742,250 + $1,395,645
$2,137,895
2017
$10,025 (+1,967.1%)
$693,821 + $145,177
$838,998
2015
$485 (+0.8%)
$680,217 + $5,076
$685,293
2014
$481 (+0.5%)
$18,794 + $3,793
$22,587
2013
$478 (+1.1%)
$18,794 + $3,793
$22,587
2012
$473 (+0.7%)
$18,710 + $3,776
$22,486
2011
$470 (+0.4%)
$18,344 + $3,702
$22,046
2010
$468 (+0.4%)
$17,985 + $3,630
$21,615
2009
$466 (+1.4%)
$17,851 + $3,603
$21,454
2007
$460
$17,544 + $3,542
$21,086
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Sep 16, 2022 • Final
Building permit with plan check
Electrical
Generator
Apr 1, 2022 • Final
Building permit with plan check
ADU
Electrical
Solar
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Bathroom Information
# of Full Baths: 2
Room Information
# of Rooms: 4
Exterior
Exterior Information
Building Construction Quality: Good
Property Information
Living Sq. Ft: 2,257
Building Sq. Ft: 2,725
# of Stories: 1
Legal Description: 1972 FORM PT OF 126-073-04
Lot Information
# of Buildings: 1
Land Sq. Ft: 129,373
Legal Lot Number: 4
Acres: 2.97
Zoning Code: AR5
County Use Description: RURAL RESID-1 RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 2,257
Stories: 1.0
Lot Size: 2.97 acres
Style: Single Family Residential
Year Built: 2016
Year Renovated: 2017
County: Sonoma County
APN: 126073034000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Prestwood Elementary School
Public K-5 • Assigned • 2.4mi
5/10
Adele Harrison Middle School
Public 6-8 • Assigned • 2.5mi
4/10
Sonoma Valley High School
Public 9-12 • Assigned • 2.5mi
7/10
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
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
5/10 Heat Factor
7 days above 92° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
16 unhealthy days expected this year, 16 days in 30 years
Provided by First Street
Historical weather
Sonoma, CA • 95476
Average low and high temperatures (°F)
62
40
64
42
72
46
70
47
78
51
83
54
85
55
89
55
84
58
80
51
65
46
59
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.3 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.3 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$2.28M – $2.76M
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