[1] In 1978, Mason created plans for a fifty-home community of solar-powered houses in Columbia, Maryland, that was to be called "Solar Village".

[2] In the 1980s, Mason was the architecture editor of the Futurist magazine and the first executive director of the Home Automation Association.

In 1966, Mason was a founding member of the World Future Society and the publisher of Futurist Magazine for which he co-designed their first logo inspired by the Tomoe.

He developed foam-built homes, including the Mushroom House in Bethesda, MD outside Washington, D.C., in 1974.

The Xanadu was a prototype of a smart home, with a control center in the family room, lightning control, automatic temperature control, sound-proof and computer-equipped work and study stations, kitchen software for cooking and shopping lists (the 'Robutler'), and a plan to create a fridge/microwave to store and cook food, preprogrammed music playlists selected according to the family mood...[11][12] Roy Mason created several forward-looking exhibits for the Capital Children's Museum in Washington, D.C.[16] Mason worked and lived most of his life in and around Washington, D.C. Mason's lover of many years, Brian Carneal, died in 1995 of complications related to HIV.