Seibert was a Fellow of the American Institute of Architects and one of the founders of the modern movement known as the Sarasota School of Architecture.
[8][9][10] Seibert's house, located on an inlet of Siesta Key, was a small-scale crucible for his future designs, featuring many of the same elements.
Both the Seibert House and Hiss Studio were recognized by the American Institute of Architects as examples of extraordinary design, earning the 25 year AIA Test of Time Award.
Their shared vision of 'clarity of concept (geometry)' and 'honest use of materials' helped define the modern movement known as the Sarasota School of Architecture.
I liked my clients.Over the next forty years, Seibert designed hundreds of structures, both residential and commercial, along Sarasota's gulf coast.
[18] Other local work includes the Bay Plaza Condominium[19] and additions to the Field Club in Sarasota, Craig Residence,[20] Mitchell House,[21][22][23] Godfrey House,[24] Dickerson Residence,[25] 339-361 St. Armands Circle (Shopping District),[26] Siesta Key Beach Pavilion,[27] as well as the Siesta Key home of author John D.
Seibert was elected to the College of Fellows of the American Institute of Architects in 1998, and he served as State Director and Gulf Coast Chapter president for the AIA.
Seibert was a member of the University of Florida President’s Council and served on the College of Architecture campaign committee in 1997.
[32] All of Seibert's drawings, photographs, project records and other papers are archived in the George A. Smathers Libraries at the University of Florida.
[35] In November 2017, the Center for Architecture Sarasota held a special exhibit of Tim Seibert's work including archival photos, renderings and drawings by University of Florida Graduate School of Architecture Students An Evaluation and Exploration of Tim Seibert's Life Works.