Central London land values have fallen by 4.9% in past six months

Development land values are rising again after two years of no growth; "higher costs associated with building energy efficient and sustainable homes are putting pressure on land values," says Savills.

"Housebuilders are increasingly competing for well-priced sites in optimal locations," says Knight Frank, but many vendors continue to wait for more political certainty

Savills maps where in London there are opportunities for mixed-use developers to boost resi values by improving retail and leisure offerings.