638 Hunter Ln is a 2,771 square foot house on a 4.18 acre lot with 4 bedrooms and 2.5 bathrooms. - it last sold on April 02, 1999 for $275,000. Based on Redfin's Santa Rosa data, we estimate the home's value is $1,292,352.
Single-familyProperty Type
1903Year Built
4.18 acresLot Size
$466Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,292,352
$1.0M since sold in April 1999$6,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 47.3% higher than the average sale price ($877K) 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
Nov 7, 2025 • Active
Building permit with plan check
Construct a new accessory post frame barn with a covered porch.
ADU
New construction
Jun 11, 2016 • Final
Building permit with plan check
New construction
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
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 5
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Subdivision Name: COTATI RHO 01
Living Sq. Ft: 2,771
Building Sq. Ft: 4,267
# of Stories: 1
Legal Description: 74 FORM 045-141-45 & PT TO 51 OR 2763-378
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 260
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 182,081
Legal Lot Number: 1
Acres: 4.18
Zoning Code: RR3
County Use Description: RURAL RESID-2+ RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.5
Sq. Ft.: 2,771
Stories: 1.0
Lot Size: 4.18 acres
Style: Single Family Residential
Year Built: 1903
Year Renovated: 1955
County: Sonoma County
APN: 045141050000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Taylor Mountain Elementary School
Public K-6 • Assigned • 1.6mi
2/10
Montgomery High School
Public 9-12 • Assigned • 4.0mi
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
0.77% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 91° expected this year, 17 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
15 unhealthy days expected this year, 17 days in 30 years
Provided by First Street
Historical weather
Santa Rosa, CA • 95404
Average low and high temperatures (°F)
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79
51
65
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Sun exposure
In this area, properties receive around 11.1 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.1 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.23M – $1.49M
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