Freed by necessity from what he calls the “tyranny of the two-by-four and four-by-eight,” common sizes for studs and sheets of plywood, respectively, Mr. Phillips makes use of end cuts discarded by other builders  he nails them together into sturdy and visually interesting grids. He also makes use of mismatched bricks, shards of ceramic tiles, shattered mirrors, bottle butts, wine corks, old DVDs and even bones from nearby cattle yards.

Image Other materials used in Mr. Phillips's houses include bull vertebra for decoration. Credit... Michael Stravato for The New York Times

“It doesn’t matter if you don’t have a complete set of anything because repetition creates pattern, repetition creates pattern, repetition creates pattern,” said Mr. Phillips, who is slight and sinewy with a long gray ponytail and bushy mustache. He grips the armrests of his chair when he talks as if his latent energy might otherwise catapult him out of his seat.

Phoenix Commotion homes meet local building codes and Mr. Phillips frequently consults with professional engineers, electricians and plumbers to make sure his designs, layouts and workmanship are sound. Marsha Phillips, his wife of 40 years and a former high school art teacher, vets his plans for aesthetics.

“He doesn’t have to redo things often,” said Robert McCaffety, a local master electrician who occasionally inspects Mr. Phillips’s wiring. “He does everything in a very neat and well thought-out manner.” Describing Huntsville as a “fairly conservative town,” Mr. McCaffety said, “There are people who think his houses are pretty whacked out but, by and large, people support what he does and think it’s beneficial to the community.”

Indeed, city officials worked closely with Mr. Phillips in 2004 to set up a recycled building materials warehouse where builders, demolition crews and building product manufacturers can drop off items rather than throwing them in a landfill. There’s no dumping fee and donations are tax deductible because the materials are used exclusively by charitable groups or for low-income housing.

“I’ve been recycling all my life, and it never occurred to me to recycle a door,” said Esther Herklotz, Huntsville’s superintendent of solid waste. “Dan has changed the way we do things around here.”