Rockhood
$5,665,000List price
6 bed · 5.5 bath · 6,005 sq ft
Active

9818 SE 42nd Place · Mercer Island, WA 98040

Source: NWMLS · Windermere Real Estate Midtown · Shawna Ader #NWM2525750

About this home

Pristinely and thoughtfully elevated beyond its original design, this gorgeous NW Contemporary strikes a rare balance; modern in form, yet warm, livable, and effortlessly inviting. Expansive yet intentional, the home unfolds through a series of beautifully scaled spaces designed for both connection and retreat. Six bedrooms offer the ultimate flexibility, suitable for guests or dedicated work-from-home environments, while multiple indoor and outdoor gathering areas create a seamless rhythm for everyday living and entertaining alike. Walls of glass and folding doors dissolve the boundary between inside and out, opening to a level, sun-filled, lush and rarely-found-at-this-scale backyard, as well as a view balcony. Covered terraces and open-air spaces invite year-round enjoyment, from quiet mornings to vibrant evenings. The current owner has taken an already exceptional build and refined it further: enhanced landscape design, HVAC and integrated AV systems. Tucked on a quiet dead-end street with shared access to a private beach where you can launch personal watercraft or take your morning plunge; adjacent Mercerwood Shore Club. Minutes to all that is wonderful about Mercer Island; retail, parks, restaurants and sublime commute options to Seattle & Bellevue.

Location

Basics

Property type
Single Family Residence
Style
Contemporary
Stories
2 stories
Condition
Very Good
Year built
2023
Lot size
16,230 sq ft (0.37 acres)
County
King
MLS #
NWM2525750

Interior

Heating
Forced Air, Heat Pump
Cooling
Central Air
Flooring
Ceramic Tile, Hardwood, Carpet
Appliances
Dishwasher, Disposal, Double Oven, Dryer, Microwave, Refrigerator, Stove(s)/Range(s), Tankless Water Heater, Washer
Fireplace
1 · Gas
Interior features
Second Primary Bedroom, Bath Off Primary, Built-In Vacuum, Dbl Pane/Storm Window, Dining Room, Elevator, Fireplace, High Tech Cabling, Pantry, Security System, Sprinkler System, Walk-In Closet(s), Water Heater, Wet Bar, Wine Cellar, Wired for Generator
Entry level
Main

Exterior & lot

Exterior features
Cement Planked, Wood
Roof
Torch Down
Foundation
Poured Concrete
Lot features
Dead End Street, Paved, Secluded
Topography
Level,Partial Slope,Rolling
View
Lake, Mountains
Waterfront
Yes

Parking

Parking spaces
3
Carport
Yes
Covered spaces
3
Parking features
Attached Carport

Utilities

Water
Public
Sewer
Sewer Connected
Power
Electric, Natural Gas

Community & fees

Subdivision
Mercerwood
Property tax
$29,626 (2026)

Transaction

Original list price
$6,025,000 (6% price cut)
Listed on
May 18, 2026
Days on market
153
Price per sq ft
$943
Listing terms
Cash, Conventional
Possession
Closing

More homes nearby

Sale history

Earlier listings of this home on the MLS.

2023-09-22
Sold$5,200,000

Schools

School district: Mercer Island

Elementary
Buyer To Verify
Middle
Islander Mid
High
Mercer Island High School
SchoolDigger 5 stars · Top 1% in WA

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Listing provided courtesy of: Windermere Real Estate Midtown

Listing agent: Shawna Ader.

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 2026-09-07.