16638 Watson Rd is a 1,059 square foot house on a 0.3 acre lot with 3 bedrooms and 1 bathroom. - it last sold on October 03, 2005 for $499,000. Based on Redfin's Guerneville data, we estimate the home's value is $721,737.
Single-familyProperty Type
1964Year Built
0.3 acresLot Size
$682Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$721,737
$223K since sold in October 2005$9,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 64.5% higher than the average sale price ($439K) 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 16, 2025 • Active
Building permit no plan check
Roofing
Jun 11, 2016 • Final
Building permit with plan check
Install a roof-mounted solar electrical system on a single-family home.
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: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 5
Exterior
Exterior Information
Building Style Type: Square Design
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Subdivision Name: WATSON HEIGHTS SUB
Living Sq. Ft: 1,059
Building Sq. Ft: 1,059
# of Stories: 1
Legal Description: WATSON HEIGHTS SUB LOT 5
Lot Information
# of Buildings: 1
Land Sq. Ft: 13,000
Legal Lot Number: 5
Acres: 0.2984
Zoning Code: RR2UA
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,059
Stories: 1.0
Lot Size: 0.3 acres
Style: Single Family Residential
Year Built: 1964
Year Renovated: 1964
County: Sonoma County
APN: 069310005000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Guerneville Elementary School
Charter K-8 • Assigned • 0.6mi
4/10
Analy High School
Public 9-12 • Assigned • 12.3mi
8/10
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
2/10 Fire Factor
0.00% chance of being in a wildfire in next 30 years
3/10 Heat Factor
9 days above 87° expected this year, 23 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
17 unhealthy days expected this year, 19 days in 30 years
Provided by First Street
Historical weather
Guerneville, CA • 95446
Average low and high temperatures (°F)
59
40
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43
69
45
66
45
74
49
78
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76
51
85
53
80
53
76
49
62
45
57
44
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Oct
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Dec
Sun exposure
In this area, properties receive around 10.7 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
10.7 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$686,000 – $830,000
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