9740 SE 40th Street

Mid-Century Modern, Reimagined to Perfection by a Mercer Island Master Builder

Welcome to a home that doesn’t just check boxes—it sets the standard. This iconic Mid-Century residence in coveted Mercerwood has been completely transformed by Seascape Homes LLC, one of Mercer Island’s premier boutique luxury builders. Every inch of this property reflects expert craftsmanship, elevated finishes, and a deep respect for timeless design.

From the moment you arrive, you’re greeted by a bold terracotta-hued front door—a striking, sun-warmed statement that hints at the curated beauty within. Step inside and you’ll find soaring vaulted ceilings, a dramatic floor-to-ceiling stone fireplace, and an open-concept layout that seamlessly blends classic architectural elements with modern flow.

Anchoring the home is a fully reimagined kitchen and great room—a space designed for both entertaining and everyday luxury. The kitchen was completely reconfigured and now opens into the heart of the home, featuring all-new custom cabinetry, high-end appliances, and a layout that invites gathering. Throughout the home, hardwoods add warmth and sophistication, while playful woven light fixtures dance above with an effortless, elevated charm.

This 2024–2025 renovation was more than cosmetic—it was transformative. The main level now includes a newly created primary suite, boasting a designer accent wall, massive walk-in closet, spa-inspired bath, and private deck access. The expanded hall bath is now a beautifully appointed full bath, adjacent to a generously sized second bedroom.

Downstairs, the reimagined lower level offers flexible luxury: two additional bedrooms (one with private slider to the outdoors), a dedicated home office, and two stunning bathrooms, all newly added or reconfigured to maximize space and flow. The family room—anchored by a second fireplace and glass sliders—leads to a patio and a fenced, private grassy yard, creating an ideal retreat for outdoor entertaining or quiet moments of calm.

Additional upgrades include:

All new windows and doors

Rebuilt staircase

Expanded laundry room with abundant storage

Fresh interior and exterior paint

New carpet throughout the lower level

Sleek new garage door

The expansive deck spans the full width of the home, with stairs leading gracefully to the private backyard—blurring the lines between indoor elegance and outdoor living.

All this, tucked in a quiet enclave just minutes from I-90, Lake Washington, top-rated Mercer Island schools, parks, restaurants, and retail.

This is more than a remodel—it’s a reawakening. A bold, beautiful fusion of mid-century soul and modern luxury.

Come see what happens when extraordinary design meets everyday livability.