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mwworks llc is a Seattle based design studio offering architectural and interior design services to residential and commercial clients. Formed in 2007, by Steve Mongillo and Eric Walter, our office remains small, focused on compelling, collaborative projects of all scales.

Our work is guided by a commitment to the strength of the idea and a passion for the tangibles of material and detail. We bring an honest straightforward approach to our work, uniquely informed by circumstance, process, and ultimately the act of building itself. It is our goal to bring the vision of the client, the particulars of the site, and the richness of craft together to create an enduring livable architecture capable of inspiration and delight.

We believe in comprehensive design solutions that recognize and respond to global concerns regarding our limited natural resources, environmental pollution, health, and biodiversity. The process of building by its very nature consumes large amounts of resources. With elegant design, creative thinking and careful construction, buildings can be made to consume less and last longer. A building that functions well, delights the mind, and pleases the eye will remain farther from the wrecking ball. In addition, the integration of sustainable technologies like planted green roofs, solar power, water collection, recycled materials, and passive solar design doesn’t need to look and feel like an experiment. Thoughtful incorporation of these elements and principles early in the design process can produce buildings that are rich, appealing and most importantly, responsible.


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  • Seattle, WA

Featured Projects

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Whidbey Island Farmhouse

Out of respect for turn-of-the-century farm buildings on the site, this house carefully tucks into nearby forest. Perched on a low hill, the house looks over existing buildings, bucolic cattle fields, a cat-tail edged pond, and the forest itself. The house forms around a courtyard of natural grasses and ferns, with rooms themselves woven between mature cedar and fir. A low wall of stacked natural stone organizes the building and hints at the perimeter of the courtyard. The house was designed as both vacation house and part-time residence for every generation of a large local family.

Photos: Kevin Scott
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Case Inlet

Nestled into a forested slope along the eastern edge of the Case Inlet, this small retreat opens to a western view of the Olympic Mountains and the Puget Sound. Anchored by a weathered cedar clad bedroom wing, a bold concrete cantilever projects the living and dining into the forest and toward the view. An ipe deck slips from inside the kitchen into a meadow to the south, separated only by large sliding glass doors extending the sense of interior directly to the outdoors. A broad flat roof hovers high above the living spaces creating the feeling that one is sitting outdoors amidst the trees.

Photos: Jeremy Bittermann
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Little House

The Little House is nestled into a lush second growth forest on a north facing bluff overlooking Hood Canal. Built over an existing foundation, the new building is just over 400 square feet. Early design discussions focused on creating a compact, modern structure that was both simple and efficient. Visitors approach the site from the south, a thin canopy marks the entry and frames views of the canal below. The resulting project hopes to capture the essence of the modern cabin – small in size but much larger than its boundaries.

Photos: Andrew Pogue
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Magnolia Residence

This urban home located in Seattle’s Magnolia neighborhood was designed for an active couple looking for a clean open plan without sacrificing privacy. Two board formed concrete volumes screen an outdoor court from neighbors, while a wood deck nestled between the home and the planted shop roof provides space for entertaining. Opening broadly onto the court, large hardwood framed glass doors blur the boundary between indoors and out. Floating above the glassy main floor, a volume of dark vertically applied siding wraps around bedrooms and a home office. With a purposefully subdued palette of concrete, dark siding, and hardwoods throughout, this home infuses warmth and craft with modern simplicity.

Photos: Andrew Pogue