On the receipt of his professional archives, North Carolina State University said "Flynn’s approach to design was marked by a kind of holistic environmentalism.

[4] His papers and project files were donated by his wife to the North Carolina State University Libraries Special Collections Research Center (SCRC)'[5] After teaching at the School of Design from 1963 thru 1967 [3] he started his firm Ligon B. Flynn Architects in 1969.

He was joined by Henry Johnston in 1971 and the firm relocated to Wilmington, North Carolina in 1972 to work with developer Young Smith of Figure Eight Island Development Company and Landscape architect Richard Bell to masterplan the north end of the island.

[3] The firm developed offices at Litchfield by the Sea, Brookgreen Gardens Visitor Center in Murrells Inlet, South Carolina, the original St. John’s Art Gallery, Chandlers Wharf, Lower Cape Fear Hospice, and an addition to Thalian Hall in Wilmington, and was noted for his numerous elevated or piling residences of Figure Eight Island and the coast of North Carolina.

[3][6] A self-proclaimed "short, red headed country boy trying to do good work"[citation needed], tenets of his work included "every building must have a garden" [3] and “there should always be a breeze.”[6] Over the course of his active career, Flynn won numerous honors, including the 1993 Kamphoefner Prize from the N.C.