512 N 40th St is a 1,990 square foot house on a 4,800 square foot lot with 4 bedrooms and 1 bathroom. - it last sold on April 26, 1996 for $180,000. Based on Redfin's Seattle data, we estimate the home's value is $1,169,597.
Single-familyProperty Type
1906Year Built
4,800 sq ftLot Size
$588Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,169,597
$990K since sold in April 1996$12K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 2.6% higher than the average sale price ($1.14M) 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
May 28, 2026 • Active
Single-family/duplex furnace
Work on a furnace.
HVAC
May 28, 2026 • Active
Electrical permit: over the counter
Install a new electrical circuit for a heat pump.
Electrical
Heat pump
HVAC
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
Basement Information
Basement Sq. Ft: 770
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Forced Air
Exterior
Exterior Information
Physical Condition: Good
Building Construction Quality: Good
Building Type: Single Family
View Information
View: City
Property Information
Subdivision Name: DAYS B F 1ST ADD
Living Sq. Ft: 1,990
Ground Floor Sq. Ft: 1,100
Building Sq. Ft: 2,760
# of Stories: 2
Legal Description: DAYS B F 1ST ADD PLAT BLOCK: 6 PLAT LOT: 12
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,800
Legal Lot Number: 12
Legal Block Number: 6
School Tax District: SEATTLE #1
Municipality Name: SEATTLE
Acres: 0.1102
Zoning Code: NR3
County Use Description: SINGLE FAMILY(RES USE/ZONE)
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 4
Baths: 1.0
Sq. Ft.: 1,990
Stories: 2.0
Lot Size: 4,800 square feet
Style: Single Family Residential
Year Built: 1906
Year Renovated: —
County: King County
APN: 193030 0500
Home facts updated by county records on Sep 5, 2026
Around this home
Schools
B F Day Elementary School
Public PreK-5 • Assigned • 0.1mi
9/10
Hamilton International Middle School
Public 6-8 • Assigned • 0.7mi
8/10
Lincoln High School
Public 9-12 • Assigned • 0.6mi
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
3/10 Heat Factor
7 days above 86° expected this year, 15 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, 11 days in 30 years
Provided by First Street
Historical weather
Seattle, WA • 98103
Average low and high temperatures (°F)
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42
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77
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77
60
71
56
60
49
52
44
49
42
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Sun exposure
In this area, properties receive around 8.7 hours in
June and 1.7 hours in December, placing it below the
U.S. average for solar exposure.
8.7 hrs
1.7 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.11M – $1.35M
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