Great Portland Estates (GPE) has sold its prime, mixed-use development, Rathbone Square (located at Rathbone Place, Fitzrovia, W1 in London), for £435m. The asset has been sold to Rathbone Place Jersey Ltd – which is owned by Germany’s WestInvest Gesellschaft Für Investmentfonds and Deka Immobilien Investment – at a yield of 4.25%.