The Upper Leat, which still exists, created Exe Island, which eventually became a separate manor belonging to the Courtenays, Earls of Devon.
[5] Earlier, in 1549, King Edward granted Exe Island to Exeter, leading to the Prayer Book Rebellion, in favour of Protestant theology in an era when most people were still loyal to Catholicism.
In 1778 "Exe Island was effectively cut in two by the new viaduct" although a tunnel under the New Bridge Street allowed for travel between the two sides.
After the 1950s the industrial buildings were removed so virtually "nothing remains of old Exe Island" according to reliable sources,[7][8] although the restored Cricklepit Mill, which closed in 1957, is still standing as a tourist attraction.
Brick, corrugated iron roof, partly timber frame interior, 2 storeys with attics ... Undershot fed waterwheel with gearing disconnected but in situ.
[11] Cricklepit Mill was restored in the 1990s after extensive damage was caused by fire and purchased by Devon Wildlife Trust in 2004 with assistance from the Heritage Lottery Fund.
The Trust states that it "is now a small visitor centre and wildlife garden where we run a range of events and activities for the general public".