Whilst the background and historic legal principles in the United Kingdom may be complex for outside investors, the country offers a very well developed generally certain market for investment in real estate. Overseas investors will typically target property in Central London, but as demand continues to grow and outstrip availability investors and occupiers are often turning their attention to other hubs outside London (including the Thames Gateway, the "M4 tech corridor" to the west of London and cities such as Birmingham, Bristol, Cardiff, Leeds, Liverpool, Manchester and Sheffield) where greater yields can often be achieved.