2136 Grahn Dr is a 1,134 square foot house on a 5,940 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on August 29, 1997 for $201,500. Based on Redfin's Santa Rosa data, we estimate the home's value is $695,603.
Single-familyProperty Type
1947Year Built
5,940 sq ftLot Size
$613Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$695,603
$494K since sold in August 1997$6,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4% lower than the average sale price ($724K) 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.
Zoning and permits
Zoning
Permits
R-1-6
Single-Family Residential District - 6,000 sq ft
The R-1 zoning district is applied to areas of the City intended to be maintained as residential neighborhoods comprised of detached and attached single-family houses, clustered Residential hillside projects, and small multi-family projects, together with compatible accessory uses. The maximum allowable density ranges from two to 13 dwellings per acre, with the specific allowable density for each parcel shown on the zoning map by a numerical suffix to the R-1 map symbol see Section 20-22.040. The R-1 zoning district implements and is consistent with the Residential Very Low Density where residential clustered on hillsides is desirable, Low Density or Open Space, Low Density, and Medium Low Density land use classifications of the General Plan.
Permitted uses
Include but are not limited to:
Agriculture-Other
Day care facility
Healthcare-Other
Housing-Single unit
Housing-Student
Housing-Other
Infrastructure-Other
Housing-Mobile home park
Feb 12, 2026 • Final
Residential new
Demolish an existing detached garage and construct a new detached accessory dwelling unit studio.
ADU
Demolition
Jul 17, 2024 • Active
Residential electrical
Remove the existing electrical panel and install a new electrical panel.
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: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 4
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: MONTECITO VILLAS SU
Living Sq. Ft: 1,134
Ground Floor Sq. Ft: 1,134
Building Sq. Ft: 1,134
# of Stories: 1
Legal Description: REMAP FROM 011-182-016-000 - 09/13/97
Parking & Garage Information
# of Parking Spaces: 1
Garage/Parking Sq. Ft: 380
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,940
Legal Lot Number: 76
Acres: 0.1364
Zoning Code: CITYSR
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,134
Stories: 1.0
Lot Size: 5,940 square feet
Style: Single Family Residential
Year Built: 1947
Year Renovated: 1947
County: Sonoma County
APN: 181280040000
Home facts updated by county records on Oct 28, 2026
Around this home
Schools
K - 12
Preschool & daycare
Proctor Terrace Elementary School
Public K-6 • Assigned • 0.2mi
4/10
Santa Rosa Middle School
Public 7-8 • Assigned • 0.9mi
2/10
Santa Rosa High School
Public 9-12 • Assigned • 1.3mi
6/10
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
0.15% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 92° 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 • 95404
Average low and high temperatures (°F)
63
41
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72
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47
77
51
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82
55
86
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82
57
74
51
65
46
60
44
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Dec
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
$661,000 – $800,000
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