20810 SE May Valley Rd is a 990 square foot house on a 2.57 acre lot with 3 bedrooms and 1 bathroom. - it last sold on December 01, 1986 for $70,000. Based on Redfin's Issaquah data, we estimate the home's value is $709,949.
Single-familyProperty Type
1947Year Built
2.57 acresLot Size
$717Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$709,949
$640K since sold in December 1986$6,000 since September
Recently sold homes
Estimate history
This home's estimate is 14.6% lower than the average sale price ($831K) 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
RA-5
Rural Area Zone
The purpose of the rural zone (RA) is to provide for an area-wide long-term rural character and to minimize land use conflicts with nearby agricultural or forest production districts or mineral extraction sites. These purposes are accomplished by: Limiting residential densities and permitted uses to those that are compatible with rural character and nearby resource production districts and sites and are able to be adequately supported by rural service levels; Allowing small scale farming and forestry activities and tourism and recreation uses that can be supported by rural service levels and that are compatible with rural character; Increasing required setbacks to minimize conflicts with adjacent agriculture, forest or mineral zones; and Requiring tracts created through cluster development to be designated as permanent open space or as permanent resource use.; Use of this zone is appropriate in rural areas designated by the Comprehensive Plan as follows: RA-5 in rural areas where the predominant lot pattern is five acres or greater but less than ten acres in size and the area is generally environmentally unconstrained
Permitted uses
Include but are not limited to:
Livestock production
Winery & vineyard
Housing-Other
Infrastructure
Police station
Agriculture-Cropland
Jul 3, 2012 • Final
Residential building - addition-improvement
Construct an attached garage and storage area.
Addition
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 Fuel Type: Electric
Heating Type: Baseboard Electric
Exterior
Exterior Information
Physical Condition: Good
Building Construction Quality: Average
Building Type: Single Family
Property Information
Living Sq. Ft: 990
Ground Floor Sq. Ft: 990
Building Sq. Ft: 1,430
# of Stories: 1
Legal Description: POR OF SE 1/4 OF NE 1/4 - BEG NW COR SD SUBD TH E 100 FT TH S 01-19-27 W 362.91 FT TO TPOB TH S 88-20-08 E 245 FT TH S 72-17-23 E 251.98 FT TH S 61-24-00 W 325 FT TH S 22-10-00 W 190 FT TH S 06-14-00 E 30.50 FT TO N MGN OF CO RD TH WLY ALG SD CO RD 158.96 FT TH N 01-19-27 E 370 FT TO TPOB AKA LOT B OF KC LOT LN ADJ NO 8607006 APPROVED JULY 7, 1986 PLAT BLOCK: PLAT LOT:
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 440
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 111,949
Legal Lot Number: B
Municipality Name: KING COUNTY
Acres: 2.57
Zoning Code: RA5
County Use Description: SINGLE FAMILY(RES USE/ZONE)
Utility Information
Sewer Type: Private
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 990
Stories: 1.0
Lot Size: 2.57 acres
Style: Single Family Residential
Year Built: 1947
Year Renovated: —
County: King County
APN: 172306 9004
Home facts updated by county records on Sep 4, 2026
Around this home
Schools
Maple Hills Elementary School
Public K-5 • Assigned • 1.4mi
8/10
Maywood Middle School
Public 6-8 • Assigned • 2.6mi
8/10
Liberty Senior High School
Public 9-12 • Assigned • 2.6mi
10/10
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
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
2/10 Heat Factor
8 days above 87° expected this year, 17 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
7/10 Air Factor
10 unhealthy days expected this year, 13 days in 30 years
Provided by First Street
Historical weather
Issaquah, WA • 98027
Average low and high temperatures (°F)
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47
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76
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72
54
59
45
50
41
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39
Jan
Feb
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Sun exposure
In this area, properties receive around 8.8 hours in
June and 1.7 hours in December, placing it below the
U.S. average for solar exposure.
8.8 hrs
1.7 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$675,000 – $817,000
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