Grade II listed · Gosport

Submarine Escape Training Tank (SETT), HMS Dolphin

Submarine Escape Training Tank (SETT), HMS Dolphin is a Grade II listed building in Gosport, first listed on 26 June 2013. It is one of 180 Grade II entries among 202 listed buildings in Gosport; 85% of Gosport’s current entries were listed before it.

List entry
Field	Value
Name	Submarine Escape Training Tank (SETT), HMS Dolphin
Grade	Grade II — special interest
List entry number	1414020
Date first listed	26 June 2013
Local planning authority	Gosport
Location	50.78743, -1.11731 (map)
Official record	Historic England list entry 1414020

Planning works on this listed building?

Planium checks which consents Gosport will require for your works on Submarine Escape Training Tank (SETT), HMS Dolphin, lists what the heritage statement must cover and drafts the application text.

Ask Planium what consent you need

What the grade means for works

Grade II buildings are of special interest and make up over 90% of listed buildings in England. Most alterations, extensions and many internal changes still need listed building consent from the council.

The protection covers the whole building, inside and out, plus fixtures and attached structures. Typical works that need consent: replacing windows or doors, removing walls or historic fabric, changing roof coverings, installing solar panels or external insulation, and adding extensions.

Listed buildings near Submarine Escape Training Tank (SETT), HMS Dolphin

Name	Grade	Distance
Cannon Bollard, Fort Blockhouse	II	193 m
Admiralty boundary stone, Fort Blockhouse	II	203 m
Submariners' Memorial, Fort Blockhouse	II	315 m
Former Gatehouse Datestone, Fort Blockhouse	II	319 m
Numbers 1-5 (Consecutive) Royal Naval Hospital, Haslar	II	333 m
Medical Stores South East of Main Entrance, Royal Naval Hospital, Haslar	II	350 m
Former Guardhouse (now called the Post Office), Fort Blockhouse	II	351 m
Central Gateway and Railings to North East of Royal Naval Hospital, Haslar	II	372 m
Numbers 11 and 12 and Attached Railings, Royal Naval Hospital, Haslar	II	382 m
Boundary Wall to North East of Royal Naval Hospital, Haslar	II	385 m

Frequently asked questions

Is Submarine Escape Training Tank (SETT), HMS Dolphin listed?

Yes. Submarine Escape Training Tank (SETT), HMS Dolphin is on the National Heritage List for England as a Grade II listed building, list entry number 1414020, first listed on 26 June 2013. The full list entry with its description and map is on Historic England’s website.

Do I need consent for works to Submarine Escape Training Tank (SETT), HMS Dolphin?

Works that affect its character as a building of special architectural or historic interest — inside or out — need listed building consent from Gosport, in addition to any planning permission or building regulations approval. Like-for-like repairs often do not, but confirm with the council’s conservation officer before you start.

Source: National Heritage List for England, © Historic England 2026, via planning.data.gov.uk. Contains Ordnance Survey data © Crown copyright and database right. Licensed under the Open Government Licence v3.0. Retrieved 12 October 2026. Local authority assigned from the list entry point. This page is a summary — the legal record is the official list entry.