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 7A . 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 roughly 16 homes on Langham Street, we would have expected roughly 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 7 property sales in Langham Street with 0 sold as new, averaging approximately 1 home sales per year . The average price per square metre (per square foot) in Langham Street, Oxford Circus is £20,117 sqm (£1,868 per sq ft), this is based on the selling price of the 7 most recent sales.
The average size of all the properties on Langham Street is 81 m2 (871 sqft).