The park authority has adopted a pioneering policy - now being copied elsewhere in the UK - that, in future, all new houses or conversions should be allowed only for occupation by local people at affordable prices.
New holiday cottages and second homes are banned in an attempt to stop the drift from the park by local young people, driven out because they cannot afford to buy or rent homes at sky-high prices.
However, a survey has shown that there is a shortfall of some 75 such dwellings every year within the Craven Dales, including Settle, Ingleton, Gargrave and Embsay. Although meeting such a target would be difficult to achieve, the park authority believes that having such concrete figures will help in future planning.
Peter Stockton, the YDNPA's Strategic Planning Officer, comments: "This gives us a good, sound basis for tackling the lack of affordable housing by working with our partners - district and parish councils and housing associations."