Island Crest Renovation Preserves Midcentury Charm on Mercer Island
A 1958 Mercer Island home, originally slated for demolition, has been thoughtfully reimagined by ONOMA Architecture, preserving its midcentury spirit while adapting to modern family life and social needs.


A 1958 home on Mercer Island, identified as Island Crest, has undergone a significant transformation, guided by ONOMA Architecture’s commitment to preservation and thoughtful re-envisioning. The project prioritized retaining the original structure’s “good bones” while adapting it to the needs of a growing family with a social lifestyle.
Commitment to History
The new owners were drawn to the 1958 home’s midcentury design, Pacific Northwest craftsmanship, and its established magnolia tree. Their vision was to create a forever home, but the structure required a comprehensive gut remodel. A key element of their decision was the home’s history; it was previously occupied by a family that raised 10 children there. Purchasing the house from the adult children of the original owners, the new family made a pledge to “respect and enjoy what this house meant to the family.”
Overcoming Challenges
The renovation journey was not without obstacles. An initial proposal from a different architect suggested demolishing the house entirely. Later, the discovery of widespread asbestos and mold presented a significant challenge and a potential justification for demolition. However, for the homeowners, discarding the original structure was contrary to their values and their promise. The decision to save, extend the life of, and reconfigure the home felt more authentic and aligned with their character.
ONOMA Architecture’s Approach
Encouraged by Mercer Builders, the homeowners partnered with Bryan Pendz of ONOMA Architecture. Pendz’s approach was characterized by attentive listening rather than imposing a preconceived aesthetic. As the project evolved and conditions changed, Pendz repeatedly reimagined the house, enhancing its flow, natural light, and functionality while carefully maintaining its midcentury spirit. The renovation went through three distinct iterations, each reinforcing the decision to preserve rather than replace the original structure.
Key Architectural Changes
A significant alteration involved relocating the front door from the east facade to the south facade. This move expanded and reconfigured the entry sequence, creating two distinct points of entry: a private entrance with a foyer and mudroom for the owners arriving from a detached garage, and a new public entrance for guests, featuring a concrete courtyard and a steel-covered walkway with a screen that offers variable opacity.
Internally, walls were removed and repositioned to open up the kitchen, dining, and living room areas. Structural flitch plates were installed on the ceiling beams to support these changes. The design team selected durable materials, including Dekton countertops and white oak wood. A new freestanding wall with a glass partition was introduced in the living room, serving as an anchor and allowing borrowed light to illuminate the stairwell. The kitchen now features sliding glass doors on both sides, providing access to an expanded deck and the entry courtyard, facilitating seamless indoor-outdoor living and accommodating larger gatherings.
Homeowner Testimonials
The homeowners expressed their satisfaction with ONOMA Architecture’s involvement. “There was a sense that Bryan wanted us to be successful,” one homeowner reflected. “He was invested in us. You could tell Bryan had a level of passion for the project that he didn’t need to have.” The owners added, “The home deserved a second life. Saving it wasn’t just about sustainability; it was about respecting what was already here and making it endure into the future.”
A Model for Preservation
The remodeled Island Crest residence now feels both refreshed and grounded, with durable materials, a thoughtful reconfiguration, and a deep respect for the original architecture. The project stands as a testament to the idea that sustainability can begin with preservation and that good design can build upon, rather than erase, history. This approach supports contemporary family life while honoring the legacy of the original structure.
Key facts
| Aspect | Detail |
|—|—|
| Project Name | Island Crest |
| Location | Mercer Island, USA |
| Original Construction | 1958 |
| Architecture Firm | ONOMA Architecture |
| Key Focus | Preservation and modernization of a midcentury home |
| Notable Features | Relocated entrance, new courtyard, reconfigured interior spaces, durable materials |
This renovation offers a compelling case study for how historical residential architecture can be preserved and adapted for contemporary living, demonstrating that sustainability and honoring a building’s past are integral to thoughtful design.
Source: Amazing Architecture – Island Crest, Mercer Island (USA) by ONOMA Architecture, https://amazingarchitecture.com/houses/island-crest-mercer-island-usa-by-onoma-architecture
Datos clave
| Punto | Detalle |
|---|---|
| Fuente | Amazing Architecture |
| Fecha | 2026-06-24T18:23:08+00:00 |
| Tema | Island Crest, Mercer Island (USA) by ONOMA Architecture |
Source
Amazing Architecture Original publication: 2026-06-24T18:23:08+00:00
Mara Ellison
Editorial contributor.
