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We use innovative design practices while honoring the past.

The greenest building is the one already built. - Carl Elefante

Our Story

Founded in 1979, in 2018 long term employees — Howard Miller, Steve Campbell, and Ellen Mirro —took over the practice. With a combined experience of almost 100 years, TJP's architects value collaboration, craft, and the latest technologies and practices.

We value meticulous architectural designs that are ecologically, socially, and fiscally responsible. We apply our experienced insight across a wide range of project types, sizes, and budgets.

Expertise in architectural history informs our use of modern, innovative architectural design, building processes, and materials.

We provide guidance throughout the design and building process, from inception to project completion.

Studio TJP is licensed to practice architecture in Washington.

Meet The Team

Howard L. Miller, AIA, NCARB, LEED AP

Principal Architect

Steven M. Campbell, AIA, LEED AP

Principal Architect

Ellen F. C. Mirro, AIA, NCARB, LEED AP | Architectural Historian

Principal Architect

Rachel Gensi Humura, Associate AIA

Associate Architect

HAPPENINGS AT TJP

Notes from the architects at Studio TJP

Howard, and his front entry designs, are in the news.

When Bob Vila asked Studio TJP for examples of great entry stairs, Principal Howard Miller answered. (Click here for the link ) Bob Vila included our Madison Heights project for accessibility, the Glenwilde Cottage for flow and curb appeal, the Emerald Park Residence for durability, safety, and character, and the Burke Residence for historic charm and safety. photographers: Jim Houston, Mike Hipple, and Howard Miller

Happy Halloween! Ellen is in the news talking about spooky architecture.

Maria Densley at Lifestyle Magazine interviewed principal Ellen Mirro about haunted architecture. Click the image above for the link. The article discusses how people change the buildings and landscapes they inhabit and how what makes buildings spooky isn't always visible on the outside.

Our Lakewood Farmhouse project was in The Seattle Times

https://www.seattletimes.com/pacific-nw-magazine/two-seattle-remodels-align-vintage-architecture-with-modern-living/?utm_source=marketingcloud&utm_medium=email&utm_campaign=Sunday+Morning+10-19-25_10_19_2025&utm_term= This project was a team effort, with TJP providing the architectural design, Lisa Staton providing interior design, including the space planning for the Primary Suite and Kitchen, Dyna doing project management and construction, Jan Satterthwaite at Vireo doing t

Our Clients

GOVERNMENT AGENCIES: City of Tacoma, Washington State Department of Archaeology and Historic Preservation, Seattle Public School District, Seattle Parks, etc.

NOT FOR PROFIT ORGANIZATIONS: James & Janie Washington Foundation, Community Roots, InterIm CDA, Friends of the Farm, Sail Sandpoint, etc.

INSTITUTIONS: Episcopal Diocese of Olympia, Seattle Central College, University of Washington, Central Washington University, Bertschi School, Epiphany School, etc.

PRIVATE INDIVIDUALS: Ask us for references!

ARCHITECTURE FIRMS: KMB Architects, Studio Meng Strazzarra, Collins Woerman, Jackson Main, etc.

DEVELOPERS: Carmel Partners, Emerald Bay, Nitze Stagen/OZ Navigator, Lake Union Partners, Blueprint, Chainqui. PEAK, DaLi, Douglaston, Mill Creek, Aegis, etc.