top of page


ISD 622 North St. Paul-Maplewood Schools

CASTLE ELEMENTARY is located in Oakdale, MN and serves students on the north end of the North St. Paul-Maplewood-Oakdale district. In 2019, the school underwent a complete renovation along with a 17,000 sq. ft. renovation. This project added 10 new classrooms to the school along with a new STEM learning area.

HEI paired with LHB Inc. along with Adolfson & Peterson Construction on this 74,000 sq. ft. project and provided mechanical and electrical design services.

Project Gallery

bottom of page