Port Tennant is a suburban district of Swansea, falling within the St. Thomas ward, and lies at the southern foot of Kilvey Hill. It is now a mostly residential area.
The area takes its name from the Tennant family who built the Tennant Canal (NPRN 91664) and were responsible for developing the area during the nineteenth century. The Tennant Canal terminates at the Vale of Neath Inn (now closed) in the south east of Port Tennant.
The area was photographed during RCAHMW aerial reconnaissance in March 2014.
Additional source: Wikipedia

David Leighton, RCAHMW, 20 October 2017