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A 1958 midcentury modern Mercer Island home gets a striking renovation

Mid-century modern home with cantilevered deck, dark wood siding, and mature trees at dusk

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ONOMA Architecture transformed this midcentury modern home on Mercer Island, Washington, originally built in 1958. For the renovation of Island Crest, a 4,000-square-foot post and beam house, the firm also partnered with Mercer Builders.

First, the team removed walls and columns to connect the main living spaces with each other and with a wraparound deck. In addition, stained cedar siding, black steel, white oak and Dekton surfaces give the home a warm, natural look among the mature trees. Continue below to see the rest of this amazing home…

DESIGN DETAILS

ARCHITECTURE ONOMA Architecture
INTERIOR DESIGN ONOMA Architecture
BUILDER Mercer Builders
STRUCTURAL ENGINEER B2 Engineers
CASEWORK Acadia Craft
PHOTOGRAPHER Rafael Soldi
APPLIANCES Fisher & Paykel, Wolf
PLUMBING FIXTURES Brizo
COUNTERTOPS Dekton by Cosentino
FLOORING Element Hardwoods
WINDOWS Weather Shield
GLASS DOORS Fleetwood
SKYLIGHTS VELUX
TILE Cooritalia
FIREPLACE Heatilator
LIGHTING WAC Lighting, Access Lighting
HARDWARE Emtek

Black steel slat screen beneath deep roof overhang with exposed wood beams

What We Love About This Home

The owners of this midcentury modern Mercer Island home chose to save it rather than tear it down. As a result, the original beams and low rooflines remain, while the new floor plan opens up to natural light and views of the trees. We are especially loving the steel slat screen at the entry and the fabulous kitchen that opens right onto the deck, perfect for entertaining!

Tell Us: What are your overall thoughts on this midcentury renovation? Let us know in the Comments below!

Note: Check out a couple of other amazing home tours that we have showcased here on One Kindesign on Mercer Island: A revamped midcentury home on Mercer Island with scenic Lake Washington views and This peaceful waterfront home gets beautifully reimagined on Mercer Island.

Close-up of textured black steel slats

Saving a 1958 Post and Beam Home

Rain chain hanging past stained cedar wall with black cylinder sconce

The homeowners fell in love with the home’s midcentury design, Pacific Northwest craftsmanship, and the large magnolia in the front yard. The house also had a history: the previous owner had raised 10 children here, so the couple promised the family they would respect what it meant to them.

Timber post set on concrete wall with black steel connector

However, that promise faced an early test. Early on, the first architect they consulted recommended tearing the house down. Later, the team discovered asbestos and mold throughout much of the structure. Even so, the couple stayed the course and, with encouragement from Mercer Builders, brought in Bryan Pendz of ONOMA Architecture. As conditions changed, the design went through three versions, and each one confirmed the decision to save the house.

Midcentury Modern Exterior with Cedar and Steel

Black steel slat screen on concrete base in front of cedar siding

From the street, deep roof overhangs cast shadows across the stained cedar siding. Meanwhile, at the new public entry, a steel slat screen sits on a concrete base. The screen is opaque from one direction and see-through from the other, so it adds privacy without closing off the entry.

Entry corner with steel slat screen, cedar siding, and steel-covered walkway

Person walking past steel slat screen at front entry

Above: A steel-covered walkway wraps the corner and leads guests to the front door.

Covered Entry Walk with Concrete and Rain Chains

Covered entry walk with concrete wall, rain chain, and stained cedar siding

Concrete pavers lead to a covered walkway, with a low concrete wall framing the new entry courtyard. Along the way, rain chains hang from the roof edge, while WAC Lighting step lights set into the wall light the path at night.

Covered breezeway entry with concrete wall, timber post, and view to kitchen

Front Entry with an Oak Pivot Door

Front entry with glass surround, open oak pivot door, and stained cedar siding

ONOMA moved the front door from the east side of the house to the south side, creating a public entry for friends and extended family. Meanwhile, the owners have their own private foyer and mudroom off the detached garage. At the new entry, an oak pivot door sits within a glass surround, with a clerestory window above.

Open oak pivot front door beside stained cedar siding and concrete wall

White oak entry bench with abstract painting, opening to sitting area with corner windows

Above: Inside, a white oak built-in bench offers a spot to drop shoes, keys, and bags.

Open Living Room with Steel-Reinforced Beams

Hallway between white walls and oak storage cabinetry under wood ceiling

To open up the kitchen, dining, and living room, the project team bolted steel flitch plates to the original ceiling beams so that walls could come down.

Living room with swivel chairs, round black coffee table, and steel-reinforced ceiling beams

In the living room, swivel chairs and a sofa gather around a round coffee table, with a Heatilator gas fireplace nearby. White oak flooring from Element Hardwoods also runs throughout the main level, adding warmth underfoot.

Steel flitch plates bolted to ceiling beams against tongue-and-groove wood ceiling

Above: A closer look at the steel flitch plates against the tongue-and-groove ceiling.

White Oak Kitchen with Dekton Countertops

View from deck through open glass wall to dining area and kitchen island

Sliding glass doors on both sides open the kitchen to the expanded deck and the entry courtyard, making it easy to host larger gatherings.

Kitchen with stone-look island, white oak cabinets, dark hood, and upholstered counter stools

White oak cabinetry runs beneath the original beams, paired with Dekton Marmorio countertops and backsplash from Cosentino. The range hood features a Dekton Domoos surround, while Brizo Odin faucets sit above Brizo workstation sinks. In addition, panel-ready Fisher & Paykel refrigerator and freezer columns blend right into the cabinetry.

Flat-front oak cabinets with stone-look backsplash and countertop

Indoor-Outdoor Living on the Deck

Kitchen opening through sliding glass wall to wood deck with lounge chairs

Fleetwood sliding glass doors open the kitchen to a covered wood deck surrounded by trees.

Glass Partition and Stairwell

Glass partition at end of white wall above stairwell

A new freestanding wall anchors the living room, with a glass partition at its end that brings borrowed light down the stairwell.

Bedroom with Treetop Views

Bedroom with wall of black-framed windows looking into tree canopy

A wall of Weather Shield windows looks right into the tree canopy, so this bedroom feels like a treehouse.

Reading corner with swivel chair, teak stool, and corner window to trees

Above: A cozy reading corner with a swivel chair looks out to the garden.

Bathroom with a Skylight

Floating oak vanity with stone-look top, skylight, and frosted glass sconces

A VELUX skylight brings natural light into this bathroom, while a floating oak vanity and textured tile keep the look simple.

Garden Views

Side of home with black-framed windows, cedar siding, and magnolia tree

Mature trees surround the home, including the magnolia that first won the owners over.

Floor Plans

Site plan of mid-century home and detached garage

Above: Site plan.

Main level floor plan

Here is the main level floor plan.

Lower level floor plan

This is the lower level floor plan.

Roof plan

And lastly, the roof plan.

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