LONDON: Derwent London has exchanged contracts to acquire the freehold interest in Blue Star House, 234-244 Stockwell Road, Brixton SW9 for £38.1 million before costs. The 53,750 sq ft eleven-storey building comprises multi-let office space, including two vacant floors, with restaurant and leisure accommodation at ground/podium level. The rent on acquisition is £0.8 million, equating…