$525,000
Est. $2,845/mo3 bd•2.5 ba•1,871 sq ft
21507 42nd Avenue S #J4, SeaTac, WA 98198
• Listed Nov 5, 2026•2 days active · 2 cumulative
Listing Broker: Windermere West Metro; Mary Kay Horton; 206-841-8760; marykay@windermere.com
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Listing Broker: Windermere West Metro; Mary Kay Horton; 206-841-8760; marykay@windermere.com
About this home
Welcome home! Beautifully maintained and thoughtfully designed, this inviting three-level townhome offers the perfect blend of comfort, warmth, and convenience. Imagine coming home to an open, welcoming space where hardwood floors flow throughout, a spacious living room invites you to unwind beside the cozy gas fireplace, and the kitchen’s generous breakfast bar creates the perfect gathering place for morning coffee or casual conversation. The dining room opens to a private, sun-drenched, south-facing patio—a lovely spot to enjoy your morning coffee, relax with a good book, or entertain friends on a sunny afternoon. Featuring 3 bedrooms plus a versatile den/family room, 2.5 baths, newer bathroom tile, and a spacious two-car garage with additional storage, this home offers room to live, work, and relax. All appliances are included, making your move that much easier. And here’s an extra touch of convenience: This charming, move-in-ready home is being offered mostly furnished at no additional cost! Simply bring your personal touches and settle in. Ideally situated with easy access to Hwy 167, I-5, Southcenter, and SeaTac Airport, you’ll enjoy the perfect balance of peaceful living and everyday convenience. Come discover a home that feels welcoming from the moment you walk through the door.
Listed by Mary Kay Horton • Windermere West Metro
Listing updated: November 6, 2026 at 01:03pm
RexMont checked: moments ago
Source: NWMLS as Distributed by MLS Grid #2601493
Around this home
How much should you offer?
21507 42nd Avenue S #J4, SeaTac, WA 98198
Source:RexMont analysis of Northwest MLS sales data for this ZIP code plus third-party market data (RentCast). The estimates are RexMont's, not Northwest MLS listing data.
Estimates only and not guaranteed. Consult a RexMont agent for accurate, personalized guidance before making an offer. RexMont OfferEdge™ · © 2026 RexMont Real Estate. Proprietary tool.
Property details
Interior features
- Cooking-Gas
- Dryer-Electric
- End Unit
- Fireplace
- Insulated Windows
- Primary Bathroom
- Vaulted Ceiling(s)
- Walk-In Closet(s)
- Washer
- Fireplace (gas)
Kitchen
- Dishwasher
- Disposal
- Dryer
- Microwave
- Refrigerator
- Stove(s)/Range(s)
- Washer
Bedrooms
- 3 bedrooms total
- 3 upstairs
Bathrooms
- 2 full bathrooms
- 1 half bathroom
- 2.5 bathrooms total (NWMLS count)
- 1 on the main level
Layout
- Condo (3 Levels)
Laundry
- Electric Dryer Hookup laundry
- Washer Hookup laundry
Flooring
- Hardwood
- Vinyl
- Carpet
Heating & cooling
- Baseboard heating
- None cooling
Schools
Ratings via SchoolDigger- River Ridge ElementaryPublic · Grades PK-5 · 0.7 mi · State rank 1,088 of 1,1381/10
- Pacific Middle SchoolPublic · Grades 6-8 · 1.2 mi · State rank 468 of 5141/10
- Mount Rainier High SchoolPublic · Grades 9-12 · 1.3 mi · State rank 193 of 3966/10
Schools shown are the nearest public Elementary, Middle, and High school for this property and may not be the assigned schools. Verify attendance boundaries with the district before purchasing.
Condominium facts
As entered by the listing broker on Northwest MLS
Building & HOA
- Building
- River Ridge Condominiums
- Floor of unit
- 3
- Stories in building
- 3
- FHA-approved project
- No
- Common interest community
- Yes
- HOA dues
- $491
- Dues frequency
- Monthly
- Dues include
- Common Area Maintenance, Lawn Service, Road Maintenance
- Special assessment
- false
- Association contact
- Alvery Evans-Community Manager
- First right of refusal
- No
Rules
- Pets
- Yes
- 55+ community
- No
Unit
- Assigned parking
- 2
- Unit features
- Balcony/Deck/Patio,End Unit,Insulated Windows,Primary Bath,Vaulted Ceilings,Walk-in Closet
- Common property features
- Athletic Court,Fire Sprinklers,High Speed Int Avail,Playground
- Entry location
- Split
- Laundry
- Electric Dryer Hookup, Washer Hookup
Systems
- Energy source
- Electric,Natural Gas
- Power production
- Electric, Natural Gas
- Power company
- Puget Sound Energy
- Water company
- Energy Management
- Sewer company
- Energy Management
- Gas company
- Puget Sound Energy
- Garbage service
- Recology King County
- Irrigation water rights
- No
- Internet connected
- Xfinity
- Cable connected
- Xfinity
Green & certifications
- Energy-efficient features
- Insulated Windows
Rooms & extras
- Bathtubs
- 2
- Showers
- 2
- Fireplaces on main
- 1
- Excluded items
- No
New construction
- Square footage source
- Public Records
- Effective year built source
- Public Records
Neighborhood mobility
Doorstep, Pedal & Station Scores
Three RexMont scores for this exact address: what is on foot, what is by bike, and what rides past the door.
Ground Truth™
The ground, the slope, the flood zone and the noise at this address
Read from public hazard, flood, terrain and noise maps for this exact home.
Address Insider™
The members' report
Commute, transit, zoning and ADU potential, internet providers and the lifestyle around the home: the nearest grocery, coffee, park, services and transit stop. One free registration opens every home on rexmont.com.
Opens with the report above.
Sales & Tax Records for 21507 42nd Avenue S #J4
NWMLS via MLS Grid · King County AssessorEvery listing, pending, price change and closing filed on this home with the NWMLS, the county’s recorded sales, and its assessed values by tax year.
- Nov 5, 2026ListedNWMLS via MLS Grid · #2601493$525,000$281/sq ft
- Nov 18, 2021SoldNWMLS via MLS Grid · #1850024$480,000$257/sq ft
- Oct 19, 2021PendingNWMLS via MLS Grid · #1850024$435,000$232/sq ft
- Oct 14, 2021ListedNWMLS via MLS Grid · #1850024$435,000$232/sq ft
- Sep 20, 2007SoldNWMLS via MLS Grid · #27130190$322,000$172/sq ft
- Sep 4, 2007PendingNWMLS via MLS Grid · #27130190$324,950$174/sq ft
Down payment assistance
6 programs may be available to provide you with up to $26,250 in down payment assistance, depending on your specific information.
Northwest MLS lists this home as eligible for down payment assistance programs
Source: program list compiled by RexMont from ARCH (A Regional Coalition for Housing) member-jurisdiction information. This is not Northwest MLS listing data.
Mortgage payment forecast
$3,925 per month
Great rateTakes about 5 minutes & won't affect your credit
Get pre-approvedSource: RexMont estimate, not Northwest MLS listing data. Interest rates from Freddie Mac's Primary Mortgage Market Survey via FRED (Federal Reserve Bank of St. Louis). Property tax and HOA dues from the NWMLS listing where provided, otherwise estimated; insurance estimated at 0.3% of price per year.
Estimate only. Actual payment depends on credit, lender, and program. PMI not included for down payments below 20%.
Ask about this home
A licensed RexMont broker will get back to you, usually in under 5 minutes during business hours.
Listing Broker: Windermere West Metro; Mary Kay Horton; 206-841-8760; marykay@windermere.com
Market pulse
SeaTac is a balanced market.
Supply and demand are roughly in balance. Neither side has a clear edge.
Offer insight: Homes typically sell with one offer near asking price.
List to sale price: The average home sells very close to list price.
Time on market: The average home goes pending in around 83 days.
Want a deeper read on this market?
Ask a RexMont agentMarket data from MLS GRID / NWMLS · Updated Nov 2026
Information and statistics derived from Northwest Multiple Listing Service. Source: Northwest Multiple Listing Service, as distributed by MLS GRID.
MLS GRID Disclaimer
Based on information submitted to the MLS GRID as of November 7, 2026 at 6:36 AM PT (date and time MLS GRID Data was obtained). All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
Listing information courtesy of Northwest Multiple Listing Service (NWMLS). The listing data relating to real estate for sale on this web site comes in part from the Northwest Multiple Listing Service. Real estate listings held by brokerage firms other than RexMont Real Estate are marked with the “Listing courtesy of NWMLS” designation. Information provided is for the consumer’s personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
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© 2026 Northwest Multiple Listing Service. All rights reserved.
HO
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