Active
3 beds2,143 sqft
20506 Old Mill Rd SW, Vashon, WA 98070
Est: $5,428/moGet pre-approved
Single FamilyProperty Type
4.72 acresLot Size
1983Year Built
$428/sq ftPrice per sq ft
4 carsParking Spaces

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,...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!
1 day on Market
Cumulative days on Market: 1
  • Listed by: Mary Margaret Briggs 206.276.2158 MMBriggs@windermere.com • Windermere Vashon
Last updated: 09/29/2026 05:01 AM • Source: NWMLS as distributed by MLS GRID, MLS#: 2587996

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Listing Courtesy of Windermere Vashon
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$5,428 per month

30 year fixed, 7.03% Interest

Principal and Interest

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Property Taxes

$533

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Property Information for 20506 Old Mill Road Southwest

Property Details
  • Taxes: $6,394 / year
  • MLS Type: Residential
  • County: King County
  • Community Name: Westside
  • School District: Vashon Island
  • View: Territorial
  • Number of Assigned Spaces: 4
  • Total Covered Parking: 4
  • Entry Date: 09-28-2026
  • Energy Source: Electric,Propane
  • Sewer: Septic Tank
Building Information
  • Year Built: 1983
  • Lot Size: 4.72 AC / 205,603 SF
Summary
Location and General Information
  • Style: 11 - 1 1/2 Story
  • Building Information: Built On Lot
  • Site Features: Deck, Dog Run, Fenced-Fully, Gated Entry, Propane, Shop
  • Area: 800 - Vashon Island
  • Elementary School: Chautauqua Elem
  • Middle Or Junior School: Mcmurray Mid
  • High School: Vashon Isl High
  • 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.
  • Property Sub Type: RESI
  • Bus Line Nearby: false
  • View: Yes
  • Waterfront: No
  • Entry Location: Main
  • Direction Faces: West
Taxes and HOA Information
  • Tax Year: 2026
Parking
  • Attached Garage: Yes
  • Carport: Yes
  • Garage: Yes
  • Parking Type: Attached Garage, Carport-Attached, Garage-Attached, Garage-Detached
  • Open Parking: No
  • Parking Features: Attached Carport, Attached Garage, Detached Garage
Interior and Exterior Features
Bathroom Information
  • Full Bathrooms: 2
  • Three Quarter Bathrooms: 1
  • Half Bathrooms: 0
  • Full Baths Lower: 0
  • Full Baths Main: 1
  • Full Baths Upper: 1
  • Three Quarter Baths Lower: 0
  • Three Quarter Baths Main: 0
  • Three Quarter Baths Upper: 0
  • Half Baths Lower: 0
  • Half Baths Main: 0
  • Half Baths Upper: 0
  • Full Baths Garage: 0
  • Half Baths Garage: 0
  • Three Quarter Baths Garage: 1
  • Main Level Bathrooms: 1
Bedroom Information
  • Bedrooms Main: 1
  • Bedrooms Upper: 2
  • Bedrooms Lower: 0
  • Bedrooms Possible: 3
  • Master Bedroom Level: Second
Interior Features
  • Fireplaces Total: 1
  • Fireplaces Main: 1
  • Floor Covering: Ceramic Tile, Hardwood, Vinyl, Carpet
  • Basement: None
  • Features: Ceiling Fan(s), Dbl Pane/Storm Window, Dining Room, Fireplace, French Doors, Loft, Pantry, Skylight(s), Vaulted Ceiling(s), Water Heater
  • Water Heater Location: Crawl Space
  • Room and Floor: Den/Office-Main, Dining Room-Main, Entry Hall-Main, Kitchen Without Eating Space-Main, Living Room-Main, Primary Bedroom-Second, Studio-Main, Utility Room-Main, Bathroom Full-Second, Bathroom Full-Main, Bathroom Three Quarter-Garage, Bedroom-Second, Bedroom-Main
  • Appliances: Dishwasher, Dryer, Refrigerator, Stove(s)/Range(s), Washer
  • Cooling: Yes
  • Cooling: Wall Unit(s)
  • Fireplace Features: Gas
  • Fireplace: Yes
  • Heating: Yes
  • Heating: Stove/Free Standing, Wall Furnace
  • FIRPTA: No
  • Water Heater Type: Electric
  • Room List: Den/Office, Dining Room, Entry Hall, Kitchen Without Eating Space, Living Room, Primary Bedroom, Studio, Utility Room, Bathroom Full, Bathroom Three Quarter, Bedroom
  • Number Of Showers: 3
Exterior Features
  • Exterior: Wood
  • Roof: Composition
  • Appliances That Stay: Dishwasher(s),Dryer(s),Refrigerator(s),Stove(s)/Range(s),Washer(s)
  • Security Features: Fully Fenced, Security Gate
Property
Utilities
  • Water Source: Shared Well
  • Power Company: PSE
  • Sewer Company: Septic
  • Water Company: Cline Water System - 2 Party Well
  • Power Production Type: Electric, Propane
Property and Assessments
  • New Construction YN: No
  • Senior Exemption: No
  • Zoning Jurisdiction: County
  • Foundation: Poured Concrete
  • Level: One and One Half
  • Lot Topography: Level
  • First Right Of Refusal: false
  • MLS Square Footage Source: Owner
  • Preliminary Title Ordered: Yes
  • Senior Community: No
  • Special Listing Conditions: None
  • Photos Count: 40
Lot Information
  • Lot Details: Open Space, Secluded
  • Lot Size Source: County
  • Parcel Number Free Text: 0122029051
  • Building Condition: Good
  • Calculated Square Footage: 2143
  • Structure Type: House
  • Square Footage Finished: 2143
  • Square Footage Unfinished: 0
  • Vegetation: Fruit Trees, Garden Space, Wooded
  • Building Area Total: 2143.0
  • Building Area Units: Square Feet
  • Property Type: Residential
  • Elevation Units: Feet
  • Irrigation Water Rights: No
Rental
Rent Information
  • Occupant Type: Vacant
  • Land Lease: No

Property History for 20506 Old Mill Road Southwest

DateEvent & SourcePriceAppreciation
Sep 28, 2026

Listed (Active)

NWMLS #2587996

$917,000—
DateEvent & SourcePrice
09/28/2026

Listed (Active)

NWMLS #2587996

$917,000

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 20506 Old Mill Road Southwest

Taxable ValueLand$136,000Additions$496,000Total$632,000
Tax Record2026$6,394 ($533 / month)
Home Facts
Beds3Baths2Total Finished SqFt1,490 SqFtAbove Ground SqFt1,490 SqFtStories2Lot Size205,603 SqFtStyleSingle Family ResidenceYear Built1983Year Renovated1983ZoningRA-10-SOCountyKINGAPN012202-9051

Schools near 20506 Old Mill Road Southwest

This home is within Vashon Island School District.
Rating
School
Type
Grades
Distance
Public - PK to 5
Public - K to 12
Public - 6 to 8
Public - 9 to 12
Rating
School
Distance
Chautauqua Elementary School
PublicPK to 5

Family Link
PublicK to 12

Mcmurray Middle School
Public6 to 8

Student Link
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

Similar Homes

20506 Old Mill Road Southwest is a single family home for sale in Vashon, WA 98070. This property was listed for sale on September 28, 2026 by Windermere Vashon, it's currently listed at $917,000. This listing's school district is Vashon Island School District. Nearby schools include Chautauqua Elementary School, Family Link and Mcmurray Middle School. 20506 Old Mill Road Southwest is a 3-bed, 3-bath, 2,143 sqft single family home built in 1983.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of Windermere Vashon

Based on information submitted to the MLS GRID as of 09/29/2026 05:01 AM. 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. Properties displayed may be listed or sold by various participants in the MLS. IDX information is 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. The data is deemed reliable but is not guaranteed by MLS GRID. Use of the MLS GRID data may be subject to an end user license agreement prescribed by the applicable MLS of the Member Participant, if any, and as amended from time to time.