Eastney is at the south east corner of Portsea Island, meeting Southsea to the west and Milton to the north. Mainly residential with its late Victorian and early C20 terraces, the area near the coast is dominated by the large barracks built in the 1860s. These impressive military buildings are now apartments and the Royal Marines Museum. They were Designed by William Scamp of the Admiralty Works Department and include a water/clock tower, and the longest barrack block after Woolwich. DW Lloyd says:

The carefully laid-out site beside the seashore reflects its use by Marines; it is also probably the last large defensible barracks built in the country. Part of the best and most complete barracks of the post-Crimean War period.

Immediately to the east and west are the Eastney forts. Just to the north is the Portsmouth Pumping Station with its Beam Engine House and associated boiler room and other listed buildings on the site. Also included here, although really in Southsea, are the Eastfield Hotel (by pub architect AE Cogswell) and St Patrick’s church (a most unusual and appealing church by GE Smith). Being so different to the municipal and military architecture, these are shown first and then all of the listed buildings of Eastney (apart from Fort Cumberland.)