18712 SE May Valley Rd is a 3,990 square foot house on a 8.87 acre lot with 4 bedrooms and 3.5 bathrooms. - it last sold on March 29, 1985 for $180,000. Based on Redfin's Issaquah data, we estimate the home's value is $1,825,264.
Single-familyProperty Type
1981Year Built
8.87 acresLot Size
$457Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,825,264
$1.6M since sold in March 1985$121K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.3% lower than the average sale price ($1.83M) 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 3, 2012 • Final
Residential building - addition-improvement
Construct an addition to the building including an exercise room, sewing room, family room, and garage.
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: 2
# of 1/2 Baths: 1
# of 3/4 Baths: 1
Heating & Cooling
Heating Fuel Type: Electric
Heating Type: Heat Pump
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Physical Condition: Average
Building Construction Quality: Good
Building Type: Single Family
Property Information
Living Sq. Ft: 3,990
Ground Floor Sq. Ft: 3,990
Building Sq. Ft: 4,810
# of Stories: 1
Legal Description: SE 1/4 OF NE 1/4 OF NW 1/4 LESS W 290 FT OF S 280 FT THOF & POR OF NE 1/4 OF SE 1/4 OF NW 1/4 LY NLY OF CO RD # 863 LESS W 290 FT THOF LESS C/M RGTS PLAT BLOCK: PLAT LOT:
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 820
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 386,377
Municipality Name: KING COUNTY
Acres: 8.87
Zoning Code: RA5P
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: 4
Baths: 3.5
Sq. Ft.: 3,990
Stories: 1.0
Lot Size: 8.87 acres
Style: Single Family Residential
Year Built: 1981
Year Renovated: 1993
County: King County
APN: 072306 9091
Home facts updated by county records on Jul 7, 2026
Around this home
Schools
Apollo Elementary School
Public PreK-5 • Assigned • 2.2mi
10/10
Maywood Middle School
Public 6-8 • Assigned • 2.2mi
8/10
Liberty Senior High School
Public 9-12 • Assigned • 1.8mi
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
3/10 Heat Factor
8 days above 86° expected this year, 18 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)
45
35
46
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50
39
59
42
65
47
71
52
78
56
77
58
71
54
59
45
50
41
47
39
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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
$1.74M – $2.10M
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