"[14] In 2020, William / Kaven completed work on Skyview, a private residence situated on a narrow lot in Northwest Portland's Alphabet District.

"[20] In November 2017, Kaven proposed a design for the tallest building on the West Coast,[21] dubbed the Portland Twin Towers by the press.

[22] The development project, designed to occupy the site of a soon-to-be-demolished United States Postal Service headquarters, would include two skyscrapers connected by a glass-enclosed botanical bridge 680 feet in the air.

[27] Kaven's book Architecture of Normal (Birkhäuser, 2022) is a visual and literary exploration of how evolving forms of transportation have shaped the built environment of the American West since the arrival of the Spanish in New Mexico.

In a review of the book, art critic Richard Speer says: "Kaven has crafted a thoroughly researched and well-reasoned treatise in which he argues that historical eras' dominant modes of transportation — walking on foot, riding horses, trains, cars, and airplanes — have inexorably influenced our public and private spaces.

[32] In 2000, Kaven directed and produced The Glass Pool Incident, a multi-channel documentary feature about the lives of youth across five continents on the last day of the millennium.