2540 Warm Springs Rd is a 1,391 square foot house on a 2.5 acre lot with 2 bedrooms and 1 bathroom. - it last sold on February 28, 1990 for $270,000. Based on Redfin's Glen Ellen data, we estimate the home's value is $1,032,133.
Single-familyProperty Type
1938Year Built
2.5 acresLot Size
$742Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,032,133
$762K since sold in February 1990$26K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.1% lower than the average sale price ($1.11M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jun 11, 2016 • Final
Building history record
Work on an addition.
Addition
Jun 11, 2016 • Final
Building permit no plan check
Install a pole-mounted power supply on a utility pole.
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: 1
Heating & Cooling
Heating Type: Wall Furnace
Room Information
# of Rooms: 4
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: U-Shape
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Subdivision Name: LOS GUILICOS RANCHO
Living Sq. Ft: 1,391
Ground Floor Sq. Ft: 1,391
Building Sq. Ft: 1,816
# of Stories: 1
Legal Description: OFFICIAL RECS 460 PG 271
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 792
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 108,900
Acres: 2.5
Zoning Code: RR5
County Use Description: RURAL RESID-1 RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,391
Stories: 1.0
Lot Size: 2.5 acres
Style: Single Family Residential
Year Built: 1938
Year Renovated: 1954
County: Sonoma County
APN: 053180028000
Home facts updated by county records on Oct 28, 2026
Around this home
Schools
Altimira Middle School
Public 6-8 • Assigned • 5.7mi
2/10
Sonoma Valley High School
Public 9-12 • Assigned • 8.6mi
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
1% chance of being in a wildfire in next 30 years
4/10 Heat Factor
8 days above 96° expected this year, 17 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
19 unhealthy days expected this year, 20 days in 30 years
Provided by First Street
Historical weather
Glen Ellen, CA • 95442
Average low and high temperatures (°F)
61
41
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70
47
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47
77
51
81
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84
55
88
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83
57
73
52
64
46
58
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
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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
$981,000 – $1.19M
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