18157 Riviera Pl SW is a 3,450 square foot house on a 9,681 square foot lot with 4 bedrooms and 4.5 bathrooms. - it last sold on June 20, 1986 for $145,000. Based on Redfin's Normandy Park data, we estimate the home's value is $1,723,417.
Single-familyProperty Type
2023Year Built
9,681 sq ftLot Size
$500Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,723,417
$1.6M since sold in June 1986$27K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.6% lower than the average sale price ($1.91M) 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-12.5
Residential Very Low Density; Single-Family District
The primary purpose of the R-12.5 zone is to allow areas for a medium density of single-family homes meeting the dimensional requirements in NPMC
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Multiple units
Office
Library
Museum / gallery
Park & open space
Mar 19, 2026 • Final
Building permits
New construction
Feb 7, 2026 • Final
Building permits
Fire sprinkler
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: 1,770
Basement Finish: Finished
Basement Type: Daylight
Bathroom Information
# of Full Baths: 1
# of 1/2 Baths: 1
# of 3/4 Baths: 3
Heating & Cooling
Heating Fuel Type: Oil
Heating Type: Heat Pump
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Exterior
Exterior Information
Physical Condition: Average
Building Construction Quality: Good
Building Type: Single Family
Property Information
Subdivision Name: NORMANDY PARK RIVIERA SEC
Living Sq. Ft: 3,450
Ground Floor Sq. Ft: 1,870
Building Sq. Ft: 4,170
# of Stories: 1
Legal Description: NORMANDY PARK RIVIERA SECTION & UND INT IN LOT A PLAT BLOCK: 2 PLAT LOT: 7
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 530
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,681
Legal Lot Number: A
Legal Block Number: 2
Municipality Name: NORMANDY PARK
Acres: 0.2222
Zoning Code: R12.5
County Use Description: SINGLE FAMILY(RES USE/ZONE)
Location Information
Parcel Location Influence: Mountain
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 4
Baths: 4.5
Sq. Ft.: 3,450
Stories: 1.0
Lot Size: 9,681 square feet
Style: Single Family Residential
Year Built: 2023
Year Renovated: —
County: King County
APN: 611750 0150
Home facts updated by county records on Sep 5, 2026
Around this home
Schools
Marvista Elementary School
Public PreK-5 • Assigned • 1.0mi
7/10
Sylvester Middle School
Public 6-8 • Assigned • 1.3mi
5/10
Mount Rainier High School
Public 9-12 • Assigned • 3.3mi
5/10
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 87° 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
9 unhealthy days expected this year, 10 days in 30 years
Provided by First Street
Historical weather
Normandy Park, WA • 98166
Average low and high temperatures (°F)
47
37
48
38
53
42
61
45
66
50
73
55
77
57
77
60
71
56
60
48
52
44
49
41
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
$1.64M – $1.98M
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