The Eagan City Council this month approved zoning changes that officials hope will stop builders from putting "huge McMansions on tot lots" and result in more affordable homes instead.
City Planner Mike Ridley said the ordinance was designed to offer more varied housing styles at lower prices. "You don't want to go shopping somewhere where they only have one product," he said.
The updated zoning rules will restrict the footprint of a new house on smaller-sized lots to 2,000 square feet (including garage) or 20 percent of the 8,000-square-foot lot, whichever is less.
The zoning changes also call for homes to be set back 10 feet from the property line on each side. Owners of existing homes on smaller lots will need the city's permission to build additions.
Ridley acknowledged that the new restrictions still allow for big houses — just not as large as those permitted on standard lots.
"We're not talking tiny houses by any means," he said.
The changes are intended to make up for the failings of a zoning category the city created more than 10 years ago. That ordinance allowed some single-family homes to be built on lots between one-fifth and one-sixth of an acre, which is smaller than the 12,000-square-foot lot size that Eagan usually requires.
The ordinance also was supposed to ensure that older homes sitting on smaller lots met current standards, and also allow houses to be clustered closer if a plot had features like wetlands that couldn't be disturbed.