$1,400,000
Est. $7,755/mo3 bd•1.5 ba•1,710 sq ft
6221 S 129th Street, Seattle, WA 98178
• Listed Mar 20, 2026•201 days active · 201 cumulative
Listing Broker: Kelly Right RE of Seattle LLC; Nicole Finamore; 206-792-6753; nfinamore@gmail.com
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Listing Broker: Kelly Right RE of Seattle LLC; Nicole Finamore; 206-792-6753; nfinamore@gmail.com
About this home
Development opportunity-R24 zoning with potential for 12 units. This property is a gem with unlimited potential if you are looking to build. This rare r24 zoned property on 0.53 acres in unincorporated King County is something you don't want to miss! Come take a look and see all the possibilities, there is also an adjacent property on half an acre with two homes, one is a 3 bedroom 1 bath, the other is a studio/tiny home and can be purchased as well, pick up both properties and own an acre property with r24 zoning just outside of city limits. Possible lot line adjustment or short plat, buyer to verify. If looking for a residential home with added value, this conveniently located three bedroom with two bath house is close to everything; freeways, the airport, Lake Washington, and downtown Seattle. This property is roomy enough to fit all your toys and the detached garage can be used as storage or can be built out as an ADU, whatever your needs come see this property before it's gone!
Listed by Nicole Finamore • Kelly Right RE of Seattle LLC
Listing updated: September 22, 2026 at 08:57am
RexMont checked: moments ago
Source: NWMLS as Distributed by MLS Grid #2495047
Around this home
How much should you offer?
6221 S 129th Street, Seattle, WA 98178
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
- Bath Off Primary
- Ceiling Fan(s)
- Dining Room
- Fireplace
- Skylight(s)
- Fireplace (wood burning)
Kitchen
- Dishwasher
- Double Oven
- Microwave
- Refrigerator
- Stove(s)/Range(s)
- Washer
Bedrooms
- 3 bedrooms total
- 1 on the main level
- 2 upstairs
Bathrooms
- 1 full bathroom
- 1 half bathroom
- 1.5 bathrooms total (NWMLS count)
- 2 on the main level
Layout
- 2 Story
- 1,710 sq ft finished
- 620 sq ft garage
Accessory dwelling unit
- 1 accessory dwelling unit (attached dwelling)
Flooring
- Ceramic Tile
- Hardwood
Heating & cooling
- Fireplace Insert heating
- Wall Furnace heating
- None cooling
Schools
Ratings via SchoolDigger- Alki Elementary SchoolPublic · Grades PK-5 · 9.4 mi · State rank 117 of 1,1608/10
- Aki Kurose Middle SchoolPublic · Grades 6-8 · 4.3 mi · State rank 240 of 5346/10
- Alan T. Sugiyama High SchoolPublic · Grades 9-12 · 2.8 mi—
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.
Single-family home facts
As entered by the listing broker on Northwest MLS
Lot & site
- Topography
- Level
- Vegetation
- Brush, Fruit Trees, Garden Space, Wooded
- Lot number
- 112
- Zoning code
- R24
- Zoning jurisdiction
- County
Systems
- Energy source
- Electric,Wood
- Power production
- Electric, Wood
- Power company
- Seattle City Light
- Water company
- Skyway Water and Sewer
- Sewer company
- Skyway Water and Sewer
- Irrigation water rights
- No
Rooms & extras
- Bathtubs
- 1
- Showers
- 1
- Fireplaces on main
- 1
New construction
- Square footage source
- Realist
- Lot size source
- tax records
Manufactured home
- Land lease
- No
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 6221 S 129th Street
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.
- Mar 20, 2026ListedNWMLS via MLS Grid · #2495047$1,400,000$819/sq ft
- Sep 27, 2005Recorded saleKing County recorder · Statutory warranty deed$260,000$152/sq ft
- Jan 25, 1990Recorded saleKing County recorder · Warranty deed$100,000$58/sq ft
Mortgage payment forecast
$8,684 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%.
Commute times
Driving times to major Puget Sound employers, modeled at a typical Tuesday 8:30am rush hour. Powered by Google Maps live traffic data.
Microsoft (Redmond)
Peak (Tue 8:30am)
Amazon HQ (Seattle)
Peak (Tue 8:30am)
Google (Kirkland)
Peak (Tue 8:30am)
Downtown Bellevue
Peak (Tue 8:30am)
Downtown Seattle
Peak (Tue 8:30am)
Ask about this home
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Listing Broker: Kelly Right RE of Seattle LLC; Nicole Finamore; 206-792-6753; nfinamore@gmail.com
Market pulse
Seattle 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 66 days.
Recent sales nearby
Within 1 mile · last 6 months$550,000 Sold
3 days ago
4 bd•2 ba•~1,760 sq ft•Single Family
5712 S Augusta Street, Seattle, WA 98178
8%
Under list
64
Days on market
0.9 mi
Distance
$560,000 Sold
3 days ago
4 bd•2 ba•~1,690 sq ft•Single Family
7324 S 131st Court, Seattle, WA 98178
3%
Under list
141
Days on market
0.7 mi
Distance
$500,000 Sold
1 week ago
3 bd•2 ba•~1,040 sq ft•Single Family
12805 64th Avenue S, Seattle, WA 98178
0%
Over list
119
Days on market
0.1 mi
Distance
$715,000 Sold
3 weeks ago
3 bd•1.75 ba•~1,580 sq ft•Single Family
7005 S 128th Street, Seattle, WA 98178
0%
Over list
39
Days on market
0.5 mi
Distance
$565,000 Sold
3 weeks ago
4 bd•1 ba•~1,680 sq ft•Single Family
6815 S 120th Place, Seattle, WA 98178
2%
Under list
93
Days on market
0.7 mi
Distance
Closed sales from MLS GRID / NWMLS within the past 6 months, matched on property type and within 1 mile. Comps approximate.
Want a deeper read on this market?
Ask a RexMont agentMarket data from MLS GRID / NWMLS · Updated Oct 2026
MLS GRID Disclaimer
Based on information submitted to the MLS GRID as of September 22, 2026 at 08:57am (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.
© 2026 Northwest Multiple Listing Service. All rights reserved.
HO
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