Working families are struggling to get on the housing ladder in Calderdale, according to housing charity Shelter.
It said less than a third of properties in the region are affordable for families looking to buy their first home.
Research by Shelter found that just 30 per cent of suitable homes for sale were within reach for a typical working family.
The charity looked at asking prices for all of the properties for sale in Yorkshire and the Humber on a single day, and compared them with the mortgage that families, couples and single people on average wages could afford as first-time buyers.
In some areas, fewer than one in 10 homes on the market were found to be affordable for families - even if they were able to save up a 20 per cent deposit.
The charity is calling for action to tackle what it calls a “desperate shortage” of affordable homes.
Shelter chief executive Campbell Robb said: “When the number of affordable properties for families in an entire town is so small, it’s not difficult to see why a stable home of their own is quickly becoming a distant dream for the next generation.
“It’s right that young people who aspire to own their own home should work hard and save each month, but with such a pitiful number of affordable homes on offer - even with a generous 20 per cent deposit - our housing shortage is holding them back.
“Unless we build the affordable homes we desperately need, house prices will continue to rise and as a result more people will be forced to live at home with their parents into their thirties, or move into the expensive and unstable private rental market.
“Young people are working hard and doing their bit. Now the government has to meet people halfway and increase the supply of affordable homes - not the supply of credit - or the prospect of a home of their own will slip even further out of reach for future generations.”