4850 Warm Springs Rd is a 3,151 square foot house on a 1.58 acre lot with 3 bedrooms and 3.5 bathrooms. Based on Redfin's Glen Ellen data, we estimate the home's value is $1,759,279.
Single-familyProperty Type
1987Year Built
1.58 acresLot Size
$558Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,759,279
$17K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 26.2% lower than the average sale price ($2.38M) of 5 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
$5,428 (+1.2%)
$45,036 + $280,101
$325,137
2024
$5,364 (+7.4%)
$44,153 + $274,609
$318,762
2023
$4,995 (−0.7%)
$43,288 + $269,225
$312,513
2022
$5,031 (+3.3%)
$42,440 + $263,947
$306,387
2021
$4,871 (−0.8%)
$41,608 + $258,772
$300,380
2020
$4,910 (−22.6%)
$40,793 + $253,699
$294,492
2019
$6,341
$40,375 + $251,098
$291,473
2018
$6,345 (−10.9%)
$39,584 + $246,175
$285,759
2017
$7,120 (+31.1%)
$38,048 + $236,617
$274,665
2015
$5,430 (−1.3%)
$37,302 + $231,978
$269,280
2014
$5,503 (−1.0%)
$36,023 + $224,019
$260,042
2013
$5,557 (+5.2%)
$36,023 + $224,019
$260,042
2012
$5,284 (+2.2%)
$35,861 + $223,007
$258,868
2011
$5,172 (+1.2%)
$35,158 + $218,635
$253,793
2010
$5,112 (+45.3%)
$34,469 + $214,349
$248,818
2009
$3,517 (+3.2%)
$34,212 + $212,748
$246,960
2007
$3,409
$33,622 + $209,073
$242,695
Tax history for 4850 Warm Springs Rd
Year
Property tax
Land + Additions
Assessment*
2025
$5,428 (+1.2%)
$45,036 + $280,101
$325,137
2024
$5,364 (+7.4%)
$44,153 + $274,609
$318,762
2023
$4,995 (−0.7%)
$43,288 + $269,225
$312,513
2022
$5,031 (+3.3%)
$42,440 + $263,947
$306,387
2021
$4,871 (−0.8%)
$41,608 + $258,772
$300,380
2020
$4,910 (−22.6%)
$40,793 + $253,699
$294,492
2019
$6,341
$40,375 + $251,098
$291,473
2018
$6,345 (−10.9%)
$39,584 + $246,175
$285,759
2017
$7,120 (+31.1%)
$38,048 + $236,617
$274,665
2015
$5,430 (−1.3%)
$37,302 + $231,978
$269,280
2014
$5,503 (−1.0%)
$36,023 + $224,019
$260,042
2013
$5,557 (+5.2%)
$36,023 + $224,019
$260,042
2012
$5,284 (+2.2%)
$35,861 + $223,007
$258,868
2011
$5,172 (+1.2%)
$35,158 + $218,635
$253,793
2010
$5,112 (+45.3%)
$34,469 + $214,349
$248,818
2009
$3,517 (+3.2%)
$34,212 + $212,748
$246,960
2007
$3,409
$33,622 + $209,073
$242,695
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jun 6, 2022 • Final
Building permit with plan check
Install Tesla batteries.
Battery
Electrical
Jun 1, 2022 • Final
Building revision
Install additional air conditioning disconnects for batteries. Update the wiring from the gateway to the main service panel and relocate the equipment.
Electrical
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: 3
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 8
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Pool Information
Has Pool
Property Information
Living Sq. Ft: 3,151
Ground Floor Sq. Ft: 1,619
Building Sq. Ft: 3,151
# of Stories: 2
Legal Description: 87 FM INT# 54-220-41 CW PT RD 86-90527
Parking & Garage Information
Garage/Parking Sq. Ft: 484
Lot Information
# of Buildings: 1
Land Sq. Ft: 68,825
Acres: 1.58
Zoning Code: R12UA
County Use Description: RURAL RESID-1 RESID
Location Information
Parcel Location Influence: Creek
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 3.5
Sq. Ft.: 3,151
Stories: 2.0
Lot Size: 1.58 acres
Style: Single Family Residential
Year Built: 1987
Year Renovated: 1987
County: Sonoma County
APN: 054220042000
Home facts updated by county records on Oct 28, 2026
Around this home
Schools
Altimira Middle School
Public 6-8 • Assigned • 4.4mi
2/10
Sonoma Valley High School
Public 9-12 • Assigned • 7.2mi
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
3/10 Fire Factor
0.62% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 96° expected this year, 17 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
10/10 Air Factor
24 unhealthy days expected this year, 24 days in 30 years
Provided by First Street
Historical weather
Glen Ellen, CA • 95442
Average low and high temperatures (°F)
61
41
63
44
70
47
69
47
77
51
81
53
84
55
88
56
83
57
73
52
64
46
58
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.2 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.2 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.67M – $2.02M
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