The thatched barn at Double Dykes near Hengistbury Head is to be turned into a visitor centre.
The plans are on display at the Hiker CafÃ© (at the end of Broadway) this week 2pm-5pm until next Sunday 6 June.
Bournemouth community parks and countryside officer Mark Holloway says: “It is hoped that the project will be funded largely by the Heritage Lottery Fund and other grants and donations, and therefore we will be relying on the goodwill of the public.
“We would like residents to help us in the running of the centre as Heritage Volunteers and make this an exemplary community project.
â€œWe plan to use display panels, videos and audio to show off the nature reserve at its best. There will be cameras to bring live pictures from nesting birds and activities for children and adults alike to get involved.â€
The 19th-century barn was built by the Meyrick estate. It is hoped that conversion work will get underway next summer for an opening 2012.
See page 52.