400 Alexander Valley Rd is a 2,935 square foot house on a 4.5 acre lot with 5 bedrooms and 4.5 bathrooms. - it last sold on May 18, 1999 for $415,000. Based on Redfin's Healdsburg data, we estimate the home's value is $2,126,119.
Single-familyProperty Type
1979Year Built
4.5 acresLot Size
$724Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,126,119
$1.7M since sold in May 1999$55K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 16.7% higher than the average sale price ($1.82M) 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
Jul 10, 2023 • Final
Building permit with plan check
Construct a new retaining wall adjacent to a new swimming pool.
Grading
Jul 27, 2020 • Final
Building permit with plan check
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: 4
# of 1/2 Baths: 1
Heating & Cooling
Heating Fuel Type: Electric
Heating Type: Heat Pump
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 13
Exterior
Exterior Information
Foundation Type: Raised W/Crawlspace
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Good
Exterior Wall: Wood
Property Information
Living Sq. Ft: 2,935
Ground Floor Sq. Ft: 1,736
Building Sq. Ft: 3,419
# of Stories: 2
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 1,636
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 196,020
Acres: 4.5
Zoning Code: RR5
County Use Description: RURAL RESID-2+ RESID
Utility Information
Sewer Type: Septic
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 4.5
Sq. Ft.: 2,935
Stories: 2.0
Lot Size: 4.5 acres
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1979
County: Sonoma County
APN: 091070010000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Healdsburg Elementary School
Public K-5 • Assigned • 2.8mi
9/10
Healdsburg Junior High School
Public 6-8 • Assigned • 2.5mi
6/10
Healdsburg High School
Public 9-12 • Assigned • 2.0mi
9/10
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
6 days above 97° expected this year, 13 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
20 unhealthy days expected this year, 21 days in 30 years
Provided by First Street
Historical weather
Healdsburg, CA • 95448
Average low and high temperatures (°F)
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78
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89
55
85
54
78
51
63
45
58
43
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May
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Sun exposure
In this area, properties receive around 11 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$2.02M – $2.45M
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