How Does Your Garden Grow: Putting a price on outside space

Hamptons International has had a go at working out the premium you'll pay for a property on one of London's top garden squares.

One of SW7's loveliest communal gardens is due to go under the hammer later this month.

A patch of lawn in Primrose Hill listed with a guide price of £100k-£150k has just been sold for £1.26m. The rectangular 0.