Monkenhurst is a house in the Victorian Gothic style at 15 The Crescent on the north edge of New Barnet in London, England.

The house was built in 1880 to a design by Peter Dollar and was once the home of the comedian Spike Milligan.

[4] In the 1920s the house was the home of the mining engineer and metallurgist Savannah Johnson Speak (1868–1929)[5] and in the 1950s it was the residence of the radiologist Steven Carstairs (1919–1998).

[4] The house was later purchased by the property developer Stephen Friel who spent £250,000 refurbishing it after acquiring it in a poor condition.

It was offered for sale in 2002 for £1.75 million[13] Monkenhurst is locally listed by the London Borough of Barnet.