More than 700 new homes are set to be built in two Austin-area developments as area builders continue to try and keep up with the region’s soaring demand for housing .

About 25 miles west of Austin, in rapidly growing Dripping Springs in Hays County, Tri Pointe Homes and M/I Homes said they have started construction on a 188-acre subdivision called Heritage.

Tri Pointe and M/I Homes each will build 293 houses in the project for a total of 586. Tri Pointe expects to break ground on its first homes this year.

The development is along RR 12 north of U.S. 290. It will be built in four phases, with about 150 lots to be developed in each phase.