[1] Lamb achieved recognition as one of the leading architects of the boom in movie theater construction of the 1910s and 1920s[citation needed].

Particularly associated with the Fox Theatres, Loew's Theatres and Keith-Albee chains of vaudeville and film theaters, Lamb was instrumental in establishing and developing the design and construction of the large, lavishly decorated theaters, known as "movie palaces", as showcases for the films of the emerging Hollywood studios.

[citation needed] As early as 1904, Lamb was credited with renovations for two existing theaters in the city: the Weber and Fields' Broadway Music Hall at 1215 Broadway, and the Dewey Theater on East 14th Street, the latter owned by Tammany Hall figure "Big Tim" Sullivan.

[2] His first complete theater design was the City Theatre, built on 14th Street in 1909 for film mogul William Fox.

[citation needed] During the last ten years of his practice, Lamb's associate was the architect John J.