He designed the Carousel House, the ZigZag House, the Sailor Circus arena, Unitarian Universalist Church of Sarasota, Gulf Gate Elementary School, and the Jefferson Center.

Tollyn was born in Sarasota, Florida October 2, 1928.

Soon after he founded his own firm Twitchell and Allen Architects-Planners, PA. Later he founded The Twitchell Group Architects, PA.[1] In 1959 He designed a home with a unique roofline called the “Zigzag House” in Sarasota Florida.

[2] The Zigzag House is seen as an "emblem of the Sarasota School of Architecture."

[3] He designed the Unitarian Universalist Church of Sarasota in 1961.