The Royal Borough of Kensington and Chelsea, as its name suggests, has a number of esteemed residents living in larger properties. The area has streets of fine Georgian terraces and median rental on larger properties is the highest in London, and the highest in the UK at more than £9,000 a month.
Westminster is the second most expensive at £7,800, but these two boroughs are far removed from the rest of the market.
The wealthy West London boroughs of Richmond and Hammersmith and Fulham are in the next price tier along with Camden and Islington.
Central areas such as Tower Hamlets, which has expensive smaller housing stock through the development of areas like Canary Wharf and Limehouse, is cheaper for this size of property and in line with outlying boroughs such as Merton and Barnet.
Sutton and Bromley are noticeable more expensive than the boroughs in the east of the capital, while their prices have been more in line for smaller properties.
For bigger properties the gap between London and non-London prices is smaller than the premiums for 1,2 or 3 bedroom properties – it is only twice as expensive.