8243 W Mercer Way Mercer Island, WA $ 5,598,000
8243 W Mercer Way
$ 5,598,000
Recently Listed New Construction
Open House 2/25 11am - 2pm
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8243 W Mercer Way

Mercer Island, WA, 98040
$ 5,598,000
Bedrooms5 Baths4.2 Sq 5,450

Monthly Estimate*

$ 34,468

Listed by The Agency Seattle/Eastside
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Single Family Home for sale in Mercer Island, WA

for $5,598,000 with 5 bedrooms and 4 full baths, 2 half baths. This 5,450 square foot home was built in 2026 on a lot size of 0.3498.

Architecturally significant. Unapologetically modern. A definitive Mercer Island statement. Conceived by an architecture professor turned boutique builder, this custom contemporary is a disciplined study in proportion, light, and structure. Cantilevered forms and warm wood tones meet walls of glass, framing sweeping Lake Washington and Mt. Rainier views while dissolving the boundary between indoors and out. The main level unfolds with effortless flow - sunlit living spaces anchored by a refined chef's kitchen and seamless transitions to multiple outdoor retreats. Entertain on the rooftop terrace above the treetops, gather on the covered lounge deck, or unwind in quiet garden-level privacy. Every line is deliberate. Every material chosen for permanence. Upstairs, the primary suite is a private sanctuary with panoramic views and a spa-inspired bath. Three additional bedrooms and skylit gallery corridors complete the upper level with balance and flexibility. The lower level offers a recreation lounge, bonus room, and space for wine storage - ideal for media, work, wellness, or guest quarters. An integrated garage and thoughtful systems elevate daily living with quiet sophistication. Positioned on one of the Island's premier sites with direct proximity to parks, trails, shoreline access, and acclaimed schools, this residence represents a rare alignment of architecture, setting, and lasting value.

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Open House

2/25/2026 11:00 AM - 2:00 PM
8243 W Mercer Way Mercer Island, WA
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 5,598,000

Bedrooms

5

Full Bath

4

Half Bath

2

Property Type

Single Family

Taxes

$ 30,232

Style

Modern

Lot Size

0.3498

Year Built

2026

Town/City

Mercer Island

County/Region

King

MLS | Web ID

2482449

Features
General
Living Area 5450
Sewer Sewer Connected
Heating 90%+ High Efficiency
Cooling 90%+ High Efficiency Central A/C
Possession Closing
Roof Flat
Appliances Dishwasher(s) Disposal Dryer(s) Microwave(s) Refrigerator(s) See Remarks Stove(s)/Range(s) Washer(s)
HOA Fee 0
Architectural Style Modern
Security Features Partially Fenced
Year Built 2026
View Lake Mountain(s) See Remarks Territorial
Topography Rolling Sloped
Levels Two
Property Subtype Single Family Residence
Tax Year 2026
Building Name Hillmans Cd Seashore Lakefront
County King
New Construction Y
Property Type Residential
HOA N
Attached Garage Y
Subdivision Name Mercer Island
Garage Y/N Y
Full Baths 3
Special Listing Conditions None
Status Active
Directions South on West Mercer Way destination will be on the right.
High School Mercer Isl High
City Mercer Island
Entry Location Main
Senior Community Y/N N
High School District Mercer Island
MLS Area 510 - Mercer Island
Lot Size Units Square Feet
Lot Size Square Feet 15239
Carport Y/N Y
Listing Terms Cash Conventional FHA VA Loan
Elementary School Lakeridge Elem
Land Lease Y/N N
Tax Annual Amount 30232
Middle/Junior High School Islander Mid
Property Condition Very Good
Public Remarks Architecturally significant. Unapologetically modern. A definitive Mercer Island statement. Conceived by an architecture professor turned boutique builder this custom contemporary is a disciplined s
Structure Type House
Building Area Units Square Feet
Builder Name Bel Aire Highlands LLC
Standard Status Active
Water Company City of Mercer Island
Property Style 18 - 2 Stories w/Bsmnt
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Interior
Interior Amenities Bath Off Primary Dbl Pane/Storm Window Dining Room Fireplace Skylight(s) Sprinkler System Vaulted Ceilings Walk-In Closet(s) Walk-In Pantry Wine/Beverage Refrigerator
Basement Finished
Flooring Ceramic Tile Engineered Hardwood See Remarks Carpet
Total Fireplaces 1
Fireplace Features Gas
Air Conditioning Y/N Y
Heating Y/N Y
Fireplace Y/N Y
Half Baths 2
3/4 Baths 1
Total Bedrooms 5
Main Level Bedrooms 1
Total Baths 6
Fireplaces Main 1
Power Production Type Electric Natural Gas
Baths Three Quarter Garage 0
Baths Three Quarter Lower 0
Baths Three Quarter Main 1
Baths Three Quarter Upper 0
Bedrooms Lower 0
Bedrooms Upper 4
Baths Half Upper 0
Baths Half Main 1
Baths Half Lower 1
Baths Half Garage 0
Baths Full Upper 3
Baths Full Main 0
Baths Full Lower 0
Baths Full Garage 0
Bathrooms 4.75
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Exterior
Exterior Amenities Cement/Concrete See Remarks Wood
Vegetation Garden Space
Parking Features Attached Carport Attached Garage
Lot Features Dead End Street Paved
Water Source Public
Total Parking 4
Inclusions Dishwasher(s) Dryer(s) Garbage Disposal Microwave(s) Refrigerator(s) See Remarks Stove(s)/Range(s) Washer(s)
Foundation Details Poured Concrete Slab
Building Area Total 5450
Lot Size Acres 0.3498
Waterfront Y/N N
Covered Spaces 4
Irrigation Water Rights Y/N N
Site Features Cable TV Deck Electric Car Charging Fenced-Partially Gas Available Patio Rooftop Deck
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Internal Only
OriginalMLSID NWM2482449
Street Number 1 8243
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* Excluded Features
List By
Grace Yu

Listing Agent

The Agency Seattle/Eastside

Broker

Affordability Calculator

$36,987
Per Month
93%
7%
0%
Monthly Principal & Interest
$34,468
Monthly Property Taxes
$2,519
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
257830 Elementary School
1853914 Middle School
Mercer Isl High High School
Pricing History
DatePricePrice ChangeDescription
2/23/2026$5,598,000 Listed Price

Map


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8243 W Mercer Way, Mercer Island, WA, 98040 is a Single Family Home for sale at $5,598,000 with 5,450 sqft and a lot size of 0.3498. 8243 W Mercer Way has 5 bedrooms, 4.2 baths, and was built in 2026. The property's zip code is 98040 which is in Mercer Island, WA