HM Young Offender Institution, North and East Boundary Walls

HM YOUNG OFFENDER INSTITUTION, NORTH AND EAST BOUNDARY WALLS, THE GROVE

Listed on the National Heritage List for England. Search over 400,000 listed places

Explore this list entry

Overview

Heritage Category:
Listed Building
Grade:
II
List Entry Number:
1280342
Date first listed:
17-May-1993
List Entry Name:
HM Young Offender Institution, North and East Boundary Walls
Statutory Address:
HM YOUNG OFFENDER INSTITUTION, NORTH AND EAST BOUNDARY WALLS, THE GROVE
User submitted image
Contributed by Otis Gilbert This photo may not represent the current condition of the site. Over 400,000 images and stories have been added to the Missing Pieces Project so far. Share your story.
View all

Location

Location of this list entry and nearby places that are also listed. Use our map search to find more listed places. 

There is a problem

Use of this mapping is subject to terms and conditions .

This map is for quick reference purposes only and may not be to scale.

What is the National Heritage List for England?

The National Heritage List for England is a unique register of our country's most significant historic buildings and sites. The places on the list are protected by law and most are not open to the public.

The list includes:

Icon Buildings
Icon Scheduled monuments
Icon Parks and gardens
Icon Battlefields
Icon Shipwrecks

Find out more about listing

Local Heritage Hub

Unlock and explore hidden histories, aerial photography, and listed buildings and places for every county, district, city and major town across England.

Discover more

Official list entry

Heritage Category:
Listed Building
Grade:
II
List Entry Number:
1280342
Date first listed:
17-May-1993
List Entry Name:
HM Young Offender Institution, North and East Boundary Walls
Statutory Address 1:
HM YOUNG OFFENDER INSTITUTION, NORTH AND EAST BOUNDARY WALLS, THE GROVE

The scope of legal protection for listed buildings

This List entry helps identify the building designated at this address for its special architectural or historic interest.

Unless the List entry states otherwise, it includes both the structure itself and any object or structure fixed to it (whether inside or outside) as well as any object or structure within the curtilage of the building.

For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.

Understanding list entries

Corrections and minor amendments

The scope of legal protection for listed buildings

This List entry helps identify the building designated at this address for its special architectural or historic interest.

Unless the List entry states otherwise, it includes both the structure itself and any object or structure fixed to it (whether inside or outside) as well as any object or structure within the curtilage of the building.

For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.

Understanding list entries

Corrections and minor amendments

Location

Statutory Address:
HM YOUNG OFFENDER INSTITUTION, NORTH AND EAST BOUNDARY WALLS, THE GROVE

The building or site itself may lie within the boundary of more than one authority.

District:
Dorset (Unitary Authority)
Parish:
Portland
National Grid Reference:
SY7018472409

Details

PORTLAND

SY67SE
969-1/1/149

THE GROVE, Grove
(North side)
HM Young Offender Institution, N and
E boundary walls

GV
II

Boundary walls to N and E sides of prison complex. 1848 and
later. Portland stone ashlar or coursed stone. Wall is in
three sections; from NW corner of the compound, immediately
adjoining boundary wall to the W (qv), a 5-bay section with
trapezoidal raised sections over broad flat buttresses
externally with segmental link at W end and c 40m to E with
broad gateway to segmental arch, voussoirs and keystone over
heavy plank framed doors forming main N entry, and immediately
N of entrance to E Hall (qv). Wall c 6m high then drops to top
level of plain section across full width of site at lower
level, here c 5m high, and with two arched openings containing
heavy plank doors, one of these at centre, immediately N of
Overseer's Hut (qv). At E end rises again and returns to S
with long plain wall parallel with E cell block (qv), and a
final canted section of c 25m to N of the Chapel. These
containing walls are significant as part of the overall
ensemble of Victorian prison buildings which they enclose;
they are interrupted by late C20 structures in the SE
quadrant, where considerable damage occurred during World War
II.

Listing NGR: SY7018472409

Legacy

The contents of this record have been generated from a legacy data system.

Legacy System number:
382040
Legacy System:
LBS

Legal

This building is listed under the Planning (Listed Buildings and Conservation Areas) Act 1990 as amended for its special architectural or historic interest.

Ordnance survey map of HM Young Offender Institution, North and East Boundary Walls

Map

This map is for quick reference purposes only and may not be to scale. This copy shows the entry on 04-Jun-2026 at 11:34:06.

Download a full scale map (PDF)
© Crown copyright [and database rights] 2026. OS AC0000815036. Use of this mapping is subject to Terms and Conditions.

End of official list entry

All text content is available under the Open Government Licence v3.0 , except where otherwise stated. Any supplied maps are © Crown Copyright [and database rights] 2026 OS AC0000815036 and may not be reproduced without permission.

Previous Overview
Next Comments and Photos