Brownsea Island by third parties, is owned by the National Trust. Most of the buildings are situated near the small landing stage. The northern portion of the island is a Nature Reserve managed by Dorset Wildlife Trust and an important habitat for birds; this part of the island has limited public access. A small portion to the southeast of the island, along with Brownsea Castle, is leased to the John Lewis Partnership for use as a holiday hotel for staff, and is not open to the public. The island forms part of the Studland civil parish in the Purbeck local government district.
Brownsea Island Scout camp National Trust. She planted a mulberry tree to mark the occasion. The Trust has continuously maintained the island since then as a conservation area. In 1964, near the original campsite were set aside for Scout and Guide camping. In 1973, a Jamboree was held on the island for 600 Scouts from seven nations, along with one of the original campers, then aged 81. The National Trust maintains the Scout and Guide campsite, South Shore Lodge and the Baden-Powell Outdoor Centre where members of Brownsea Island Scout Fellowship and Friends of Guiding operate a small trading post. The Baden-Powell Outdoor Centre