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Hangar and Annexes

A Grade II Listed Building in Pembroke Dock, Pembrokeshire

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Latitude: 51.6947 / 51°41'40"N

Longitude: -4.9516 / 4°57'5"W

OS Eastings: 196105

OS Northings: 203676

OS Grid: SM961036

Mapcode National: GBR G7.W9TV

Mapcode Global: VH1S0.4N4P

Plus Code: 9C3QM2VX+V9

Entry Name: Hangar and Annexes

Listing Date: 18 February 1994

Last Amended: 18 February 1994

Grade: II

Source: Cadw

Source ID: 14387

Building Class: Defence

Location: Situated on E side of main Dockyard avenue, SE of Sunderland House.

County: Pembrokeshire

Community: Pembroke Dock (Doc Penfro)

Community: Pembroke Dock

Locality: The Dockyard

Built-Up Area: Pembroke Dock

Traditional County: Pembrokeshire

Tagged with: Building

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Pembroke Dock


1934-5 large 'B' type hangar, built as one of a pair for maintenance of RAF seaplanes.


Riveted steel girder frame, 162ft 7ins by 121ft 4ins (49.53m x 36.96m) with saw-tooth ridged roof of half-bays each end and 5 between. Concrete-encased steel piers 59ft 9ins (18.21m) high to angles and up to each gable apex, steel uprights between. Concrete infill between to a height of 30 ft. (9.14m) and corrugated iron cladding to upper half. Steel gantry around below gables. E front clear opening of 160 ft by 40 ft (48.76m x 12.19m) with six large rolling steel doors with spaced steel plating to allow gravel infill against bomb fragments. Rendered and painted two-storey flat-roofed range on S side, single storey ranges to W and N.

Reasons for Listing

One of only two surviving seaplane hangars of this type in England and Wales (there were two overseas at Gibraltar and Seletar). Base opened 1930 and two squadrons were deployed initially, more in wartime when the base played a major role in convoy protection. Closed 1959, the last flying-boat withdrawn February 1957.

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