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$2,200,000
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Property Description
Perched on a shy half-acre private lot, this architecturally significant mid-century modern home is a true masterpiece. Designed by renowned architect Peder H. Knudson, the home is a showcase of design and sophistication. It features striking floor-to-ceiling walls of windows that flood the interiors with natural light, along with multiple decks that seamlessly connect indoors and outdoor living. Its eclectic charm creates a calming, natural vibe. Surrounded by a Zen-like, park-like tranquility, this urban oasis has filtered water views from the main deck, where soaring eagles abound. The peaceful setting, on a dead-end street, secluded from neighbors, provides the perfect space to entertain or embrace a slower, more mindful lifestyle.
Full Property Details
Full Property Details for 9505 SE 43rd St
General
- Sold For: $2,200,000
- Taxes: $12,616 (2024)
- Status: Closed
- Type: Single Family
- Source: NWMLS
- MLS ID: 2342751
- Added to Site: 315 day(s) ago
Interior
- Interior Features: Bath Off Primary, Double Pane/Storm Window, Dining Room, Fireplace, Hot Tub/Spa, Water Heater
- Fireplace: Yes
- Number of Fireplaces: 1
- Fireplace(s): Gas
- Appliances: Dishwasher(s), Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), Stove(s)/Range(s), Washer(s)
- Flooring: Hardwood, Slate, Carpet
Rooms
Bathrooms
- Total Bathrooms: 3
- Full Bathrooms: 2
- Half Bathrooms: 1
- Main Floor Baths: 1
- Main - 1/2 Baths: 1
- Lower - Full Baths: 2
Bedrooms
- Total Bedrooms: 4
- Bedrooms Lower: 4
Additional Information
- Amenities: Cable TV, Deck, Gas Available, High Speed Internet, Hot Tub/Spa, Patio
- Spa: Yes
Parking
- Garage: Yes
- Attached garage: Yes
- Garage Spaces: 2
- Covered Spaces: 2
- Parking Features: Attached Garage
Location
- Area: 510 - Mercer Island
- County: King
- Subdivision: East Mercer
- Driving Directions: I-90 to E Mercer Way exit, S on E Mercer Way to SE 43rd, uphill then up driveway from cul de sac. Arrive at 9505 first on left.
- Direction Faces: East
School Information
- High School District: Mercer Island
- Elementary School: Buyer To Verify
- Middle School: Islander Mid
- High School: Mercer Isl High
Heating & Cooling
- Air Conditioning: Yes
- Cooling Type: Central A/C, Forced Air
- Heating Type: Forced Air, Heat Pump
- Water Heater: Gas
Utilities
- Sewer: Sewer Connected
- Water: Public
Structural Information
- Architectural Style: Modern
- Structure Type: House
- Builder: Peder H. Knudson
- Exterior Const.: Wood, Wood Products
- Basement Desc.: Daylight, Finished
- Foundation: Poured Concrete
- Roof: Torch Down
- Entry Location: Main
- Square Feet: 2,850
- Living Area: 2,850 Sq. Ft.
- Finished Total: 2,850 Sq. Ft.
- Year Built: 1969
Lot Features
- Property View: Territorial
- Lot Size (Acres): 0.4547
- Lot Size (Sq. Ft.): 19,805
- Lot Size Source: Public Records
- Topography: Sloped, Terraces
- Lot Features: Cul-De-Sac, Dead End Street, Drought Resistant Landscape, Paved, Secluded
- Trees/Vegetation: Garden Space, Wooded
Financial Considerations
- Tax Amount: $12,616.01
- Tax Year: 2024
- Terms: Cash Out, Conventional
Disclosures and Reports
- Special Conditions: None
- Inclusions: Dishwasher(s), Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), Stove(s)/Range(s), Washer(s)
- Property ID: 46100013
Listed by Lilian Bergsma-Lefever | Compass | (425) 637-7777
Sold by Christy B Shiers | Windermere Real Estate/East
Get Pre-Approved Today
Schools
Schools serving 9505 SE 43rd St
School District:Mercer Island School District
| Name | Grades | Distance |
|---|---|---|
Island Park Elementary School 5437 Island Crest Way, Mercer Island, WA 98040 | K-5 | 1.1 mi |
Islander Middle School 8225 Southeast 72nd Street, Mercer Island, WA 98040 | 6-8 | 2.3 mi |
Mercer Island High School 9100 Southeast 42nd Street, Mercer Island, WA 98040 | 9-12 | 0.4 mi |
Disclaimer:
School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 9505 SE 43rd St
Date
Details
Price
Change
Source
5/12/2025
Sold
$2,200,000
—
MLS
4/11/2025
Listed
$2,200,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
9505 SE 43rd Street, Mercer Island, WA 98040 (MLS# 2342751) is a Single Family property that was sold at $2,200,000 on May 12, 2025. Want to learn more about 9505 SE 43rd Street? Do you have questions about finding other Single Family real estate for sale in East Mercer? You can browse all East Mercer real estate or contact a Coldwell Banker agent to request more information.

