The Welsh Harp, centred around Brent Reservoir, is one of London’s most important urban wild spaces. Designated a Site of Special Scientific Interest (SSSI), it supports a remarkable variety of wetland birds and plants, making it a key ecological site within the city.
Straddling the Brent and Barnet borough boundary, the reservoir is owned by the Canal & River Trust. Its name comes from a former public house, The Welsh Harp, which stood nearby until the early 1970s.
With its open water, reedbeds, and surrounding habitats, the Welsh Harp remains a haven for wildlife and a peaceful escape from city life.