Buyers offered ‘one-off’ chance to create £40m Hampstead mansion

'A house such as this has not been available for decades'

A “one-off” opportunity has come up to turn a set of apartments on Hampstead’s Templewood Avenue back into a single dwelling worth an estimated £40m.

The Grade II listed free Baroque style pile was designed by local hero Charles Quennell between 1910 and 1911 as an elite family home, but someone decided to splice it up into six units during the mid-1950s.

Sixty years on – and thanks to a workaround involving another project in the borough – the current owners have managed to bag planning consent to recreate a single residence behind the original Edwardian façade, whilst taking the square footage from 11,807 to a whopping c.17,000, with a show-stopping 76-foot space on the lower level.

The unusually large plot, measuring nearly three quarters of an acre, also happens to be lovely and flat.

Camden policy means the likelihood of finding another project with a similar permission – six into one – is remote at best; the ready-to-go package is being offered at £23.75m, with Marc Schneiderman of selling agents Arlington Residential estimating a potential end value in the £40m ballpark…

Schneiderman told us: “This is an amazing  one off opportunity to create a new house within a Grade II listed building, in what is widely regarded as the best street in Hampstead. The planning consent allows for 17,000 sq ft of space including a lower floor room of 76 ft by 36 ft which would lend itself to a variety of uses such as an impressive entertainment space, ballroom or art gallery. The gardens are almost totally private with a rear lawn and terrace of over 200ft in length. In addition to the garaging there is a carriage driveway that can accommodate well over 15 vehicles. The house is less than 100 metres from Hampstead Heath and was constructed in 1910 by the coveted architect Charles Quennell.  A house such as this has not been available for decades.”

For a golden 15-year period from 1896, Quennell and Irish developer George Washington Hart collaborated to build the West Hampstead Estate – a swathe of 100 predominately red-brick houses locally dubbed ‘Quennell-land’. Templewood formed the final section of this development, with the pair saving their best for last and delivering the grandest houses on the estate.

In Pictures: 14 Templewood Avenue, Hampstead (£23.75m)

Particulars here