The Hyde Group have acquired the former Harrow Post Office from Dandara for £9.5m.
The building has been unoccupied for some time, while Dandara have tried without success to bring forward a housing scheme on the Harrow town centre site.
Hyde intends to partner with Galliard Homes on the site at 51 College Road, for which plans for a 410home, 19 storey, three tower scheme were refused several years ago. As well as homes, the plans are expected to include commercial and amenity space.