Langham Street house price trends

The scatter plot below reveals the house price trend for Langham Street. The graph is constructed by plotting the price per square meter by date for all sales shows sales for only W1W 7AS . The blue circles represent individual sales. You can touch or click on each blue dot to see more detail about the specific sales.

View data in table form

There are about 14 homes on Langham Street, we would have expected about 2 sales each year given that in the UK people sell their homes on average once every 7 years.
In the last 4 years there have been 9 property sales in Langham Street with 0 sold as new, averaging about 2 home sales per year . The average price per square metre (per square foot) in Langham Street, Oxford Circus is £22,337 sqm (£2,075 per sq ft), this is calculated from the price paid of the 9 most recent sales.
The average size of all the properties on Langham Street is 74 m2 (796 sqft).