Committed to designing quality projects that provide our clients with the best possible solutions for their architectural needs. Longwell + Trapp Architects believes that the owner's expenditure of funds should be completed in a thoughtful manner to ensure obtaining facilities consistent with the stakeholder's expectations and the communities needs through cost effective design, efficiency, durability, and fiscal responsibility. In addition, Longwell + Trapp Architects encourages owner and stakeholder participation as an integral part of the design, programming, and facility analysis process.

Longwell + Trapp Architects (LTA) is a professional limited-liability company (PLLC), operating as a privately owned, full service architectural design firm dedicated to providing innovative designs which meet and surpass client expectations while implementing lasting value to the broader community and environment. With decades of experience, LTA has evolved into a multifaceted firm serving a broad range of clients. We believe that client service is the key in a successful project; committing us to provide each client and project with the highest level of design quality, technical expertise, and a hands-on principal client involvement.

Longwell + Trapp Architects, PLLC provides the complete array of architectural services throughout Idaho, Washington, and Montana. We've showcased a selection of our work here. Feel free to contact us for examples of additional work that may be relevant to your project.

What's new?

Congratulations , Griffitts Facial & Oral Surgery on the completion of your new facility! We enjoyed helping you make your new office a beautiful reality. We are so happy for you, your team, and your lucky patients!

Posted on Aug 04, 2020  •  Facebook

Baker Boyer’s state-of-the-ar t facility is getting close to being done. The main floor is 95% complete and the second floor is well on its way. Furniture will also be arriving soon. It won’t be much longer until this beautiful building is open and ready for business! @ Hayden, Idaho

Posted on Jul 24, 2020  •  Facebook

A new place to grab some truly healthy meals has opened. Congratulations , Lean Kitchen Company. LTA Architects is proud to have been part of your Lean Kitchen team. Delicious meals, portion control, and meal prep done for you. What more could you ask for!

Posted on Jul 07, 2020  •  Facebook

The view of the Yakima Valley is stunning, and in a few months, Baker Boyer clients and the residents of Yakima will be able to enjoy the view from inside the new Yakima Branch. Construction has started again, and the exterior is looking good. Now the focus is on the interior.

Posted on May 19, 2020  •  Facebook

Exciting news! The three engines, brush truck, and ambulance that have been exiting from the 100+-year-old Fire Station No. 1 in Kellogg will now be responding to emergencies from their new home. Congratulations , Shoshone County Fire District #2! We cannot wait for the open house so everyone in the...

Posted on May 07, 2020  •  Facebook

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