William Kaven Architecture

William Kaven Architecture Multidisciplinary design studio based in Portland, Oregon, working in architecture and interiors

The studio was officially formed by brothers Daniel Kaven and Trevor William Lewis in 2004, continuing a lifetime of collaboration, which began as children in their home state of New Mexico. Collectively, the brothers have amassed a significant portfolio in their design careers that includes award-winning residences, energy efficient high-rise buildings, mixed-use buildings, and environments for c

orporate clients such as Nike, Converse, Microsoft, and Diamond Supply Co. Recently, William Kaven Architecture was recognized by the American Institute of Architects with a Design Merit award for their Interchange project.

We designed Soleil as a multi-family project that would foster connection in a transit-rich, centrally located neighborh...
06/19/2026

We designed Soleil as a multi-family project that would foster connection in a transit-rich, centrally located neighborhood, with an integrated outdoor environment that would build community and spark unexpected encounters among building tenants.

Soleil shows how smart massing, intentional circulation, and landscape can turn a tight urban site into a place that feels open, social, and livable.

Set on a compact site, the mixed-use project pairs two four-story buildings around a shared courtyard that connects neighbors, entries, and ground-floor homes.

At the center is a layered outdoor retreat with a dining space, a fountain, lounge seating, a barbecue, and a planted garden, bringing light, greenery, and community into the middle of the block.

The East building blends three levels of housing above neighborhood retail, while the West building lines the alley with four levels of residential units. Across both buildings, floor-to-ceiling windows and efficient layouts maximize daylight and views.

Architecture / Interiors: William Kaven Architecture
General Contractor: vwrdevelopment
Structural: SCE
Civil / Landscape: Otak Architecture

Just past the boundary between city and forest, Royal III embeds into the lush hillside, opening onto views of Mt. Baker...
06/16/2026

Just past the boundary between city and forest, Royal III embeds into the lush hillside, opening onto views of Mt. Baker, dense vine maples, and the distant lights of Portland.

Architecture / Interiors: William Kaven Architecture
GC: Metcalf Design & Construction
Structural Engineering: Butler Consulting, Inc.
Civil Engineering: Pietrok Engineering + Resources

The spa at our Skyview residence in Portland’s Alphabet District. River rock, solid-slab Calacatta marble, and a floatin...
06/12/2026

The spa at our Skyview residence in Portland’s Alphabet District. River rock, solid-slab Calacatta marble, and a floating walnut vanity that runs the length of the room. The bath opens to a private rooftop shower surrounded by foliage. A different kind of outdoor shower than we’re used to in Portland! ☔️🚿

Photo by Jeremy Bittermann / Joel B Sanders Agency

“El Capitola is an exploration of atmosphere. Through texture, color, and craft, it builds an interior world that is ric...
06/09/2026

“El Capitola is an exploration of atmosphere. Through texture, color, and craft, it builds an interior world that is rich, layered, and unmistakably distinct.” —Future House Awards Jury

Honored to have El Capitola recognized in a two-year retrospective of the Future House Awards.

📷 / .images

A sneak peek of our Hood River residence from a site visit last month. It’s hard to believe that just a couple of years ...
04/14/2026

A sneak peek of our Hood River residence from a site visit last month. It’s hard to believe that just a couple of years ago this project was little more than an excavation site and a set of drawings.

From the beginning, the goal for the design was to foreground the intense vistas, mercurial weather patterns, and unmatched drama of the Columbia River Gorge as part of everyday living. Standing at the grand floor-to-ceiling windows, it was deeply rewarding to experience the house in the midst of weather that might otherwise be considered gray or unremarkable, but which here only heightened the raw beauty of the landscape and the building’s connection to it.

One of the most gratifying moments in a project’s lifespan is walking through it with the people who helped bring it to life: the client who initiates the vision and ultimately inhabits the space; the general contractor and tradespeople who translate design intent into built form; and the consultants whose specialized expertise helps resolve challenges both visible and unseen.

Much appreciation and admiration goes to , .scott, and the entire team at . Their dedication and craftsmanship have been instrumental in navigating every challenge and bringing this extraordinary project to life.

Looking forward to sharing more soon.

We’re proud to share some exciting news: William / Kaven has been honored with a 2026 Sunset Magazine Western Home & Des...
03/23/2026

We’re proud to share some exciting news: William / Kaven has been honored with a 2026 Sunset Magazine Western Home & Design Award for “Best Blending of the Urban–Wildlife Interface.”

This recognition celebrates our ongoing commitment to designing spaces that seamlessly connect the built environment with its natural context. To be acknowledged among such inspiring work across the West is truly an honor.

writes: “Portland-based William / Kaven designs homes that immerse residents in nature while blending modern materials with thoughtful, livable design.”

Read more and see the full list of awardees at .

Photos 1, 2, and 4 by / .images

We’re excited to share that our Royal III residence in Forest Park will be featured in this year’s AIA Oregon Portland H...
03/10/2026

We’re excited to share that our Royal III residence in Forest Park will be featured in this year’s AIA Oregon Portland Homes Tour.

Join the self-guided tour and explore the latest home in our Royal Series, a collection of private residences designed to evoke the feeling of floating among the trees. It’s a rare opportunity for a peek inside one of these immersive residences — plus, it’s currently on the market!

Portland Homes Tour
Saturday, April 25, 2026
11am - 5pm

Tickets available at
Early Bird pricing ends March 23

The opens the doors to a curated collection of architect-designed homes across the Portland metro area, from thoughtful renovations to ground-up new construction. Meet the architects behind the work, discover innovative materials and sustainable strategies, and discover how great design shapes everyday living. Whether you’re a design enthusiast, future homeowner, or industry professional, the Portland Homes Tour offers rare access to inspiring spaces and the ideas that bring them to life.

“The client brief for El Capitola was a dream assignment. As someone fascinated by how the automobile has historically s...
03/03/2026

“The client brief for El Capitola was a dream assignment. As someone fascinated by how the automobile has historically shaped architecture and city planning, this project allowed me to think deeply about the connection between car design and the modern American home.”

— Daniel Kaven, W/K Founding Partner

Two homes from our Royal Collection in Forest Park are currently on the market, and we’re excited to see them featured t...
01/30/2026

Two homes from our Royal Collection in Forest Park are currently on the market, and we’re excited to see them featured this week in .

“Two modern houses designed by brothers who lead William / Kaven Architecture and built in their exclusive development near Northwest Portland’s Forest Park are for sale. One of the residences, named Royal I, is a glass- and black-paneled dwelling that showcases architects and developers Daniel Kaven and Trevor William Lewis’ ability to create structures that seem to float among the trees.”



Photo 1: Royal III, built 2025
Photo 2: ( / .images) Royal I, built 2020

williamkavenarchitecture williamkaven

01/28/2026

Residences by architects-developers Daniel Kaven and Trevor William Lewis offer modern luxury adjacent to protected forestland.

Address

4075 N Williams Avenue Studio 440
Portland, OR
97227

Opening Hours

Monday 8:30am - 5:30pm
Tuesday 8:30am - 5:30pm
Wednesday 8:30am - 5:30pm
Thursday 8:30am - 5:30pm
Friday 8:30am - 5:30pm

Telephone

+15038415239

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