Orthopedic-care provider Rothman Institute and Carlino Commercial Development have purchased an 88,000-square-foot office building at 510 Township Line Rd. in Blue Bell, where they plan $4.3 million in upgrades, the two said in a release on Thursday.

The announcement follows the March 16 purchase of the property by a partnership sharing a West Conshohocken address with Carlino for $4.6 million, according to records filed with Montgomery County.

Rothman and Carlino plan a "complete redevelopment" of the building, with the addition of a shared conference room, a fitness center, a WiFi lounge and other new amenities, according to the release.

Philadelphia-based Rothman will occupy about 17,000 square feet of the building in an expansion of its coverage area once the rehabilitation is complete, they said.

jadelman@phillynews.com

215-854-2615 @jacobadelman