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Listed by: Kelly Right RE of Seattle LLC

$1,400,000

6221 S 129th Street, Seattle, WA 98178

3beds

1,710sqft

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Single Family Residence

Built in 1926

0.53 Acres Lot

$1,342,900 Zestimate^®

$819/sqft

$-- HOA

What's special

Detached garage

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!

100 days

69

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Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 3
Bathrooms: 2
Full bathrooms: 1
1/2 bathrooms: 1
Main level bathrooms: 2
Main level bedrooms: 1

Primary bedroom

Level: Main

Bedroom

Level: Second

Bedroom

Level: Second

Bathroom full

Level: Main

Other

Level: Main

Den office

Level: Second

Dining room

Level: Main

Entry hall

Level: Main

Family room

Level: Main

Kitchen with eating space

Level: Main

Living room

Level: Main

Heating

Fireplace, Fireplace Insert, Wall Furnace, Electric, Wood

Cooling

None

Appliances

Included: Dishwasher, Double Oven, Microwave, Refrigerator, Stove(s)/Range(s), Washer, Dishwasher(s), Microwave(s), Refrigerator(s), Washer(s)

Features

Bath Off Primary, Ceiling Fan(s), Dining Room
Flooring: Ceramic Tile, Hardwood
Windows: Skylight(s)
Basement: None
Number of fireplaces: 1
Fireplace features: Wood Burning, Main Level: 1, Fireplace

Interior area

Total structure area: 1,710
Total interior livable area: 1,710 sqft

Property

Parking

Total spaces: 4
Parking features: Driveway, Detached Garage, Off Street
Has garage: Yes
Covered spaces: 4

Features

Levels: Two
Stories: 2
Entry location: Main
Patio & porch: Bath Off Primary, Ceiling Fan(s), Dining Room, Fireplace, Skylight(s)

Lot

Size: 0.53 Acres
Features: Curbs, Paved, Secluded, Sidewalk, Value In Land, Cabana/Gazebo, Fenced-Partially, Gated Entry, Outbuildings
Topography: Level
Residential vegetation: Brush, Fruit Trees, Garden Space, Wooded

Details

Parcel number: 2172000590
Zoning: R24
Zoning description: Jurisdiction: County
Special conditions: Standard

Construction

Type & style

Home type: SingleFamily
Architectural style: See Remarks,2 Story
Property subtype: Single Family Residence

Materials

Wood Siding
Roof: Composition

Condition

Year built: 1926

Utilities & green energy

Electric: Company: Seattle City Light
Sewer: Available, Sewer Connected, Company: Skyway Water and Sewer
Water: Public, Company: Skyway Water and Sewer

Community & HOA

Community

Subdivision: Skyway

Location

Region: Seattle

Financial & listing details

Price per square foot: $819/sqft
Tax assessed value: $574,000
Annual tax amount: $6,953
Date on market: 3/20/2026
Cumulative days on market: 101 days
Listing terms: Conventional
Inclusions: Dishwasher(s), Double Oven, Microwave(s), Refrigerator(s), Stove(s)/Range(s), Washer(s)

Estimated market value

$1,342,900

$1.28M - $1.41M

$3,493/mo

Price history

Date	Event	Price
3/21/2026	Listed for sale	$1,400,000+438.5%$819/sqft
Source: NWMLS as distributed by MLS GRID #2495047 Report a problem
9/30/2005	Sold	$260,000$152/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$6,988 +0.5%	$574,000 -5.1%
2024	$6,953 +19.7%	$605,000 +27.1%
2023	$5,810 +3.5%	$476,000 -7.2%
2022	$5,611 +4.7%	$513,000 +21.9%
2021	$5,361 +7.8%	$421,000 +13.2%
2020	$4,972 +0.6%	$372,000 +0.5%
2019	$4,941 +7.3%	$370,000 +4.5%
2018	$4,604 +8%	$354,000 +26%
2017	$4,262 +39.6%	$281,000 +16.1%
2016	$3,054	$242,000 +9%
2015	$3,054	$222,000 +10.4%
2014	$3,054	$201,000 +21.1%
2013	$3,054	$166,000 -3.5%
2012	--	$172,000 -23.2%
2011	--	$224,000 -11.8%
2010	--	$254,000
2009	--	$254,000 -6.6%
2007	--	$272,000 +91.5%
2006	--	$142,000 +11.8%
2005	--	$127,000 +12.4%
2001	$1,483 -3.8%	$113,000 +1.8%
2000	$1,542	$111,000

Find assessor info on the county website

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