20506 Old Mill Road SW · Vashon, WA 98070
Source: NWMLS · Windermere Vashon · Mary Margaret Briggs #NWM2587996
About this home
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!
Location
Basics
- Property type
- Single Family Residence
- Style
- Contemporary
- Stories
- One and one half
- Condition
- Good
- Year built
- 1983
- Lot size
- 205,603 sq ft (4.72 acres)
- County
- King
- MLS #
- NWM2587996
Interior
- Heating
- Stove/Free Standing, Wall Furnace
- Cooling
- Wall Unit(s)
- Flooring
- Ceramic Tile, Hardwood, Vinyl, Carpet
- Appliances
- Dishwasher, Dryer, Refrigerator, Stove(s)/Range(s), Washer
- Fireplace
- 1 · Gas
- Interior features
- Ceiling Fan(s), Dbl Pane/Storm Window, Dining Room, Fireplace, French Doors, Loft, Pantry, Skylight(s), Vaulted Ceiling(s), Water Heater
- Entry level
- Main
Exterior & lot
- Exterior features
- Wood
- Roof
- Composition
- Foundation
- Poured Concrete
- Lot features
- Open Space, Secluded
- Topography
- Level
- View
- Territorial
- Waterfront
- No
Parking
- Parking spaces
- 4
- Garage
- Yes (attached)
- Carport
- Yes
- Covered spaces
- 4
- Parking features
- Attached Carport, Attached Garage, Detached Garage
Utilities
- Water
- Shared Well
- Sewer
- Septic Tank
- Power
- Electric, Propane
Community & fees
- Subdivision
- Westside
- Property tax
- $6,394 (2026)
Transaction
- Listed on
- Sep 28, 2026
- Days active
- 22
- Price per sq ft
- $428
- Listing terms
- Cash, Conventional, FHA, VA Loan
- Possession
- Closing
More homes nearby
Schools
School district: Vashon Island
- Elementary
- Chautauqua Elem
- Middle
- Mcmurray Mid
- High
- Vashon Island High SchoolSchoolDigger 5 stars · Top 4% in WA
Listing provided courtesy of: Windermere Vashon
Listing agent: Mary Margaret Briggs.
Based on information submitted to the MLS GRID as of —. 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. IDX information provided exclusively for consumers' personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
Data last updated 2026-10-16.