Jaymie L. “Brad” Sheffield describes himself as  “a planning nerd.”

“It’s all about moving forward in small, incremental steps,” Sheffield said outside the Albemarle County Office Building on Tuesday. “And those small steps add up to that bigger vision that we’ve created that ultimately moves us forward.”

Sheffield, 39, announced his candidacy for the Democratic nomination in the county Board of Supervisors’ Rio District. That seat is held by Republican Rodney S. Thomas.