National Trust currently let some of their properties through Rightmove and advertise them online.
TANT receive lots of enquiries regarding renting properies or exchanging to move close to family etc. We have included a link here to Rightmove for rental of these properties.
Be sure to contact your local regional office at the earliest possible time, if you are wishing to exchange your property and see one on Rightmove that would be suitable.
Some properties are rented on a regional / local scale and TANT recommend that you complete the attached form and send through to the National Trust to see if they have any current vacancies.