Opportunity is knocking with this expansive 0.69-acre (approx. 30,000 sq ft) parcel in the sought-after Steel Lake area. This is a true teardown, (720 square-foot single family home), making it the perfect blank canvas for your next project—whether you're a first-time investor looking to get into development or a seasoned builder ready to maximize potential. Zoned RS7.2, the property offers strong subdivision potential for multiple single-family homes/Townhomes, (buyer to verify), giving you flexibility to build and scale in an established neighborhood. Large, usable lots like this are becoming increasingly rare—especially in a location close to shopping, schools, and major commuter routes. An incredible opportunity to create value from the ground up. Bring your vision, your plans, and your ambition—this is where your next project begins.
Listed by Brooks Glenn
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Windermere Real Estate Co.
Last updated April 25, 2026
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Source: NWMLS #2513002
Listing Facts
TypeSingle-family
NeighborhoodFederal Way-Auburn
Bedrooms1
Bathrooms1
Days on Prevu8
Taxes$3,820/year
Size720 sqft
Price per sqft$688
Amenities
Pets Allowed
Parking
Location
Mortgage Calculator
Listing History
04/23/2026
Listed by Windermere Real Estate Co.
$495,000
Property Details for 31021 20th Avenue S
Exterior
Construction
Roof: Composition
Structure Type: House
Year Built: 1947
Construction Materials: Metal/Vinyl, Stone
Exterior Features: Metal/Vinyl, Stone
Measurements
Building Area Total: 720
Building Area Units: Square Feet
Lot Size Acres: 0.68
Lot Size Dimensions: 100,300
Lot Size Square Feet: 30,000
Lot Size Units: Square Feet
Financial
Taxes
Parcel Number: 7853600045
Tax Annual Amount: $3,820.00
Tax Year: 2025
Interior
Measurements
Living Area: 720
Rooms
Bathrooms Full: 1
Bathrooms Total Integer: 1
Bedrooms Total: 1
Main Level Bathrooms: 1
Main Level Bedrooms: 1
Other
Location
Subdivision Name: Federal Way
Parking
Parking
Attached Garage: Yes
Covered Spaces: 2
Garage: Yes
Parking Features: Attached Garage
Parking Total: 2
Schools
High School
High School District: Federal Way
Utilities
Equipment
Sewer: Available
Water Source: Public
Frequently Asked Questions
How many bedrooms and bathrooms does this single-family home have?
There is 1 bedroom and 1 bathroom in this single-family home at 31021 20th Avenue S.
Does this single-family home have parking?
Yes, there are 2 parking spaces available for 31021 20th Avenue S.
What are the annual taxes for 31021 20th Avenue S?
Annual taxes for this single-family home are estimated at $3,820.
How does 31021 20th Avenue S compare to other single-family homes in Federal Way-Auburn?
This single-family home is listed 36% below the average price for single-family homes in Federal Way-Auburn and has been on the market for 53 less days than the typical home in this area.
What is the square footage on this single-family home?
According to the MLS, this listing is 720 sqft.
31021 20th Avenue S is a 1-bedroom, 1-bath single-family home for sale in Federal Way WA 98003. On Prevu for 8 days at $495,000. This home features 720 square feet of living space, located in Federal Way-Auburn. The median listing price for single-family homes in this area is $599,000. The home offers pets allowed and parking. Explore more single-family home listings in King County.
Based on information from NWMLS and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.
Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.