Deben Estuary

Site overview: This site is located on the coast of Suffolk in eastern England. It extends south-eastwards for over 12 km from the town of Woodbridge to the sea just north of Felixstowe. It is relatively narrow and sheltered, and has limited amounts of freshwater. The estuary is of importance for its wintering waterbirds, especially Avocets.

Designation Status
Last Updated
6 June 2017
MPA Type
Special Protection Area
MPA Purpose
areas of the most important habitat for rare (listed on Annex I to the Directive) and migratory birds within the European Union


52° 2' 35" North,
1° 20' 54" East

Surface Area

9.81 km2
(3.79 mi.2 )

Iconic features protected by this site


  • Tidal rivers, Estuaries, Mud flats, Sand flats, Lagoons (including saltwork basins)
  • Salt marshes, Salt pastures, Salt steppes


  • Dark-bellied brent goose (Branta bernicla bernicla) (Regularly occurring migratory species)
  • Pied avocet (Recurvirostra avosetta) (Annex I (species))