890 Hardstone Way is a 3,813 square foot house on a 0.86 acre lot with 3 bedrooms and 2.5 bathrooms. - it last sold on September 15, 2004 for $1,505,000. Based on Redfin's Santa Rosa data, we estimate the home's value is $1,887,596.
Single-familyProperty Type
1986Year Built
0.86 acresLot Size
$495Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,887,596
$383K since sold in September 2004$45K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 110.7% higher than the average sale price ($896K) of 5 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 28, 2015 • Final
Residential addition-alteration
Install a roof-mounted photovoltaic system on a residential building.
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: 2
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 10
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Good
Property Information
Subdivision Name: CASTLEROCK SUB
Living Sq. Ft: 3,813
Ground Floor Sq. Ft: 1,440
Building Sq. Ft: 4,905
# of Stories: 2
Legal Description: CASTLEROCK LOT 33
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 1,092
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 37,460
Legal Lot Number: 33
Acres: 0.86
Zoning Code: CITYSR
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.5
Sq. Ft.: 3,813
Stories: 2.0
Lot Size: 0.86 acres
Style: Single Family Residential
Year Built: 1986
Year Renovated: 1987
County: Sonoma County
APN: 013350033000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Spring Lake Charter
Charter K-8 • Assigned • 0.7mi
6/10
Montgomery High School
Public 9-12 • Assigned • 1.6mi
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
3/10 Fire Factor
0.77% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 93° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
10/10 Air Factor
21 unhealthy days expected this year, 21 days in 30 years
Provided by First Street
Historical weather
Santa Rosa, CA • 95405
Average low and high temperatures (°F)
63
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79
53
86
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83
55
78
52
64
45
59
43
Jan
Feb
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May
Jun
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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
$1.79M – $2.17M
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