A detached house in London now costs £1,090,210 on average - more than double the £530,460 figure for a home in the capital.
Such properties saw prices grow by 3.8 per cent in the first three months of the year, outpacing the London increase of 2.7 per cent.
It's a trend that has proved consistent since the financial crash. Detached homes have seen a price growth of 97 per cent since 2008, which is 18 per cent higher than the wider London average - though the figure is in line with semi-detached homes and only just ahead of terraces at 95 per cent. Growth in flats lags behind at 65 per cent.
While the difference in price between a detached house and similar property types has varied little in percentage terms, the cash difference has almost doubled, which puts the traditional trade-up well out of reach for most growing families.
Moving from a terraced house to a detached one now costs £512,720, compared to £258,550 fifteen years ago.
Clearly splendid isolation comes at a cost, though there are relative bargains to be had in clever builds and conversions that still keep the neighbours at arm's length. Here are ten of the best on the market now.
£900,000
This rare two-bedroom house is moments from the Regents Canal. To the rear, there's a courtyard terrace and outbuilding which could become an office or studio.
Winkworth, 020 3879 5972
£5,695,000
On one of the Putney's most sought-after streets sits this six-bedroom home. A vast rear extension houses a modern kitchen with floor-to-ceiling doors - all tucked behind a traditional redbrick façade.
Dexters, 020 8789 9999
£1,500,000
This six-bedroom house has a two-bedroom annexe with its own entrance. A landscaped rear garden has plenty of space for summer entertaining.
Knight Frank, 020 3815 9417
£4,995,000
A secluded three-bedroom home at the end of a private driveway near some of Ealing's best schools. A swimming pool, gym, cinema room, heat pumps and solar panels are among standout features.
Hamptons, 020 3369 4561
£475,000
This unique one-bedroom house with modern kitchen and courtyard garden is near Honor Oak Park mainline and Overground station.
Dexters, 020 8291 9556
£6,500,000
Wotton Works is a historic aircraft factory converted into a mixed-use property with a home set above studios near Cricklewood. There are two roof terraces and a private driveway with space for six cars.
Domus Nova, 0207 727 1717
£1,750,000
In need of some modernisation, this five-bedroom house is arranged over two floors. A rear garden gate to Powells Walk leads to the Thames footpath.
Marsh & Parsons, 020 8994 2556
£695,000
A four-bedroom home arranged over three floors, set in the Pollards Hill Estate near Norbury and Streatham. There's off-street parking on the driveway and in a separate garage.
Jacksons Estate Agents, 020 8677 9900
£1,650,000
Currently arranged as four one-bedroom apartments, this gated mews is near Stepney Green tube station, Mile End Park and Victoria Park.
Panda Residential, 020 8088 8099
£699,000
A distinctive Dutch Gable-style Victorian house on the fringes of Blackheath, within the Rectory Fields conservation area. There are three bedrooms and a small courtyard garden.
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