424 N 40th St is a 1,780 square foot house on a 5,000 square foot lot with 4 bedrooms and 1.5 bathrooms. - it last sold on March 13, 1987 for $91,500. Based on Redfin's Seattle data, we estimate the home's value is $986,956.
Single-familyProperty Type
1927Year Built
5,000 sq ftLot Size
$554Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$986,956
$895K since sold in March 1987$46K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 10.6% lower than the average sale price ($1.10M) 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
Aug 21, 2025 • Final
Single-family/duplex furnace
Work on a heat pump.
Heat pump
HVAC
Jul 21, 2025 • Active
Electrical permit: over the counter
Work on a heat pump.
Electrical
HVAC
Plumbing
Water heater
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: 560
Basement Finish: Finished
Basement Type: Daylight
Bathroom Information
# of Full Baths: 1
# of 1/2 Baths: 1
Heating & Cooling
Heating Fuel Type: Oil
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Physical Condition: Fair
Building Construction Quality: Average
Building Type: Single Family
Property Information
Subdivision Name: DAYS B F 1ST ADD
Living Sq. Ft: 1,780
Ground Floor Sq. Ft: 1,150
Building Sq. Ft: 2,150
# of Stories: 2
Legal Description: DAYS B F 1ST ADD E 50 FT OF S 100 FT PLAT BLOCK: PLAT LOT: MT VERNON RES
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,000
Legal Lot Number: 424
Legal Block Number: F
School Tax District: SEATTLE #1
Municipality Name: SEATTLE
Acres: 0.1148
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: 1.5
Sq. Ft.: 1,780
Stories: 2.0
Lot Size: 5,000 square feet
Style: Single Family Residential
Year Built: 1927
Year Renovated: —
County: King County
APN: 193030 1570
Home facts updated by county records on Sep 5, 2026
Around this home
Schools
B F Day Elementary School
Public PreK-5 • Assigned • 0.2mi
9/10
Hamilton International Middle School
Public 6-8 • Assigned • 0.7mi
8/10
Lincoln High School
Public 9-12 • Assigned • 0.7mi
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)
47
38
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53
42
61
45
67
50
73
55
77
57
77
60
71
56
60
49
52
44
49
42
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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
$938,000 – $1.14M
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