Date
Details
Price
Change
Source
9/28/2026
Listed
$917,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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$917,000
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Property Description
Experience a forest sanctuary on Vashon Island's serene west side. This custom built northwest contemporary home is set on a shy five-acre parcel surrounded by a sunny meadow, lush landscaping, kitchen garden, established orchard, and groomed walking trails through the woods. The well-built home bridges indoor and outdoor spaces with soaring windows and a spacious deck. Enjoy ample living spaces and one bedroom on the main, with another two bedrooms upstairs. The property offers the ultimate maker-space, a magnificent 24' X 36' shop building, with attached 24' X 24' double-height garage - ready for an artist, wood-worker, or business-owner. The gated entry, cross-fencing, and fenced animal shelter are ready for your hobby farm or companion pets. There are a few tucked away, secret flex spaces - think offices or studio space. A portion of the property is classified as Open Space - a property tax benefit - and is served by an excellent two-party water system. Privacy, space for everyone and all their projects - your new home!
Full Property Details
Full Property Details for 20506 Old Mill Rd SW
General
- Price: $917,000
- Taxes: $6,394 (2026)
- Status: Active
- Type: Single Family
- Source: NWMLS
- MLS ID: 2587996
- Updated: 9/29/2026
- Added to Site: 12 day(s) ago
Interior
- Interior Features: Ceiling Fan(s), Dbl Pane/Storm Window, Dining Room, Fireplace, French Doors, Loft, Pantry, Skylight(s), Vaulted Ceiling(s), Water Heater
- Fireplace: Yes
- Number of Fireplaces: 1
- Fireplace(s): Gas
- Appliances: Dishwasher(s), Dryer(s), Refrigerator(s), Stove(s)/Range(s), Washer(s)
- Flooring: Ceramic Tile, Hardwood, Vinyl, Carpet
Rooms
Bathrooms
- Total Bathrooms: 3
- Full Bathrooms: 2
- 3/4 Bathrooms: 1
- Upper - Full Baths: 1
- Main Floor Baths: 1
Bedrooms
- Total Bedrooms: 3
- Bedrooms Upper: 2
- Bedrooms Main: 1
Additional Information
- Amenities: Deck, Dog Run, Fenced-Fully, Gated Entry, Propane, Shop
- Security/Safety: Fully Fenced, Security Gate
Parking
- Garage: Yes
- Attached garage: Yes
- Carports: Yes
- Covered Spaces: 4
- Parking Features: Attached Carport, Attached Garage, Detached Garage
Location
- Area: 800 - Vashon Island
- County: King
- Subdivision: Westside
- Driving Directions: From Vashon Hwy, west on 204th, continuing straight beyond the Jesus Barn Farm. Follow 204th until it veers left, continuing on to Old Mill Rd.
- Direction Faces: West
School Information
- High School District: Vashon Island
- Elementary School: Chautauqua Elem
- Middle School: Mcmurray Mid
- High School: Vashon Isl High
Heating & Cooling
- Air Conditioning: Yes
- Cooling Type: Wall Unit(s)
- Heating Type: Stove/Free Standing, Wall Furnace
- Water Heater: Electric
Utilities
- Sewer: Septic Tank
- Water: Shared Well
Structural Information
- Architectural Style: Contemporary
- Structure Type: House
- Exterior Const.: Wood
- Basement Desc.: None
- Foundation: Poured Concrete
- Roof: Composition
- Entry Location: Main
- Square Feet: 2,143
- Finished Total: 2,143 Sq. Ft.
- Year Built: 1983
- Property Condition: Good
Lot Features
- Property View: Territorial
- Lot Size (Acres): 4.72
- Lot Size (Sq. Ft.): 205,603
- Lot Size Source: County
- Topography: Level
- Lot Features: Open Space, Secluded
- Trees/Vegetation: Fruit Trees, Garden Space, Wooded
Financial Considerations
- Tax Amount: $6,394
- Tax Year: 2026
- Terms: Cash, Conventional, FHA, VA Loan
Disclosures and Reports
- Special Conditions: None
- Inclusions: Dishwasher(s), Dryer(s), Refrigerator(s), Stove(s)/Range(s), Washer(s)
- Property ID: 122029051
Listed by Mary Margaret Briggs | Windermere Vashon | (206) 463-9148
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NMLS#: 1598647
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Schools
Schools serving 20506 Old Mill Rd SW
School District:Vashon Island School District
| Name | Grades | Distance |
|---|---|---|
Chautauqua Elementary School 9309 Southwest Cemetery Road, Vashon, WA 98070 | PK-5 | 1.9 mi |
Mcmurray Middle School 9329 Southwest Cemetery Road, Vashon, WA 98070 | 6-8 | 1.8 mi |
Vashon Island High School 9600 Southwest 204th Street, Vashon, WA 98070 | 9-12 | 1.7 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 20506 Old Mill Rd SW
Tax History
Tax History for 20506 Old Mill Rd SW
Year
Property Taxes
Change
Tax Assessment
Change
2026
$6,394
316%
$632,000
9%
2024
$1,536
-4%
$582,000
—
2024
$1,602
-2%
$582,000
-16%
2022
$1,639
-73%
$696,000
22%
2021
$6,105
—
$570,186
22%
2021
$6,105
5%
$467,428
-21%
2020
$5,818
13%
$592,000
7%
2019
$5,166
5%
$552,000
13%
2018
$4,932
23%
$490,000
17%
2017
$4,018
3%
$419,000
4%
2016
$3,900
2%
$402,000
11%
2015
$3,841
8%
$362,000
11%
2014
$3,549
—
$326,000
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 20506 Old Mill Rd SW
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Sold by Diane S. Stoffer | Vashon Isl. Sotheby's Int'l RE
20506 Old Mill Road SW, Vashon, WA 98070 (MLS# 2587996) is a Single Family property with 3 bedrooms, 2 full bathrooms and 1 partial bathroom. 20506 Old Mill Road SW is currently listed for $917,000 and was received on September 28, 2026. Want to learn more about 20506 Old Mill Road SW? Do you have questions about finding other Single Family real estate for sale in Vashon? You can browse all Vashon real estate or contact a Coldwell Banker agent to request more information.