A private equity real estate investment firm has purchased and will rehabilitate an 8-story office building in Downtown Crossing with $12 million in funding from Rockland Trust.

Frazer Capital intends to make improvements to the mixed-use building at 41 Winter St., including improving accessibility, refurbishing the interior and upgrading the lobby and other key areas.

“Rockland Trust is excited to partner with Frazer Capital on a project that expands our footprint in a crucial neighborhood undergoing exciting changes in Boston,” Justin Comeau, vice president of commercial lending at Rockland Trust, said in a statement. “This transaction reflects our support of the continuing growth and development we see across the city and we look forward to moving forward on this project.”

Frazer Capital & Co. has a portfolio that includes properties near Downtown Crossing on Washington Street and in the Back Bay on Newbury Street.

“We are very pleased to have worked with Rockland Trust on 41 Winter St.,” said John Driscoll, principal at Frazer Capital. “We are committed to enhancing Boston’s office space and making sure that tenants are given the best accommodations possible.”

Editor’s note: this article has been updated since it was first published on Wednesday, May 4.