The memorial is classical in design, topped by a bronze seated figure of Britannia (now a replica).
It comprises two porticos, back to back, with Doric columns.
The architect is unknown but two preliminary designs, dated 1798 and signed by a T. Fidler, are held at the National Library of Wales.
The architectural historian John Newman describes the architectural style as; "hard(..) to come to terms with".
The temple is a Grade II listed building.
 
The square Naval Temple has round plaques or medallions, four on each face, for each Admiral and the victory with which he was most closely associated and its date.
The named Admirals are: 
Vice Admiral Charles Thompson
Rear Admiral Adam Duncan
Vice Admiral Edward Boscawen
Vice Admiral Sir Samuel Hood
Admiral Howe
Admiral John Warren
Admiral John Gell (was retired locally near Crickhowell when this was built.)

Admiral Lord Nelson
Admiral of the Fleet John Jervis
Vice Admiral George Rodney
Admiral Hawke who was also First Lord of the Admiralty
Vice Admiral Sir Alexander Hood
Vice-Admiral William Cornwallis
Admiral Sir Peter Parker another Admiral of the Fleet
Admiral George Elphinstone
Admiral Andrew Mitchell
The memorial is classical in design, topped by a bronze seated figure of Britannia (now a replica). It comprises two porticos, back to back, with Doric columns. The architect is unknown but two preliminary designs, dated 1798 and signed by a T. Fidler, are held at the National Library of Wales. The architectural historian John Newman describes the architectural style as; "hard(..) to come to terms with". The temple is a Grade II listed building.  
The square Naval Temple has round plaques or medallions, four on each face, for each Admiral and the victory with which he was most closely associated and its date. The named Admirals are: 
Vice Admiral Charles Thompson
Rear Admiral Adam Duncan
Vice Admiral Edward Boscawen
Vice Admiral Sir Samuel Hood
Admiral Howe
Admiral John Warren
Admiral John Gell (was retired locally near Crickhowell when this was built.)
Admiral Lord Nelson
Admiral of the Fleet John Jervis
Vice Admiral George Rodney
Admiral Hawke who was also First Lord of the Admiralty
Vice Admiral Sir Alexander Hood
Vice-Admiral William Cornwallis
Admiral Sir Peter Parker another Admiral of the Fleet
Admiral George Elphinstone
Admiral Andrew Mitchell
The Kymin