Great Portland Estates are a FTSE250 Central London property development and investment company owning more than £3.6 billion worth of real estate. Most of their properties are located in the West End with £1,981.5 million worth of assets situated in Fitzrovia, just north of Oxford Street. The company recently announced that it has simultaneously made two deals with Deka – Immobilien Europa, for a total worth of £335 million.