It can cost up to £158,000 to buy a property with enough space to 'swing a cat' in west London.
A new tool, designed by creative agency Nice and Serious, has revealed it costs anything between £42,000 and £158,000 to swing a cat in the capital.
The interactive tool was launched to raise awareness of the housing crisis in London by comparing the amount of space needed to 'swing a cat' with how much that space would cost in terms of property.
It is part of a project by Shelter to secure 250,000 affordable homes in Britain. The organisation has launched a petition calling on the Government to end the housing crisis.
In Kensington & Chelsea, swinging a cat is likely to set you back nearly £160,000 - the most expensive borough.
Type your postcode into the swing-o-meter below to find out what it would cost where you live:
While the cat swing-o-meter is mainly for fun, it demonstrates the scale of the housing crisis in the capital.
Shelter research has found that it would take a couple with a child over 25 years to save a deposit for a home in London. And the government’s latest statistics on homeownership showed that the proportion of homeowners ages 25-34 has plummeted from 59% to 36% in just a decade.
Shelter is calling on politicians to set out a big house-building programme to secure the affordable homes Britain desperately needs.
Campaigns officer Tom McCarthy said: "Fixing our broken housing market is a serious issue, but that doesn’t mean we can’t have a bit of fun explaining it – and Nice and Serious have done a great job of demonstrating just how out of reach a home of their own has become for many.
"Until politicians build the affordable homes we need, millions will either be trapped in their childhood bedrooms or stuck in the rent trap, paying out dead money to landlords.
"Swinging a cat won’t build these homes – but going to this site and signing our petition will. We’d urge anyone worried about the housing crisis to check out the site and get involved."
Nice and Serious’ digital director Peter Larkin said: "We think everyone deserves to own a space of their own, and ideally one that’s big enough to at least swing a cat!
"This is why we're supporting Shelter and their campaign for more affordable homes."