The Octagon

THE OCTAGON, 10, COLLYWELL BAY ROAD

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

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Overview

Heritage Category:
Listed Building
Grade:
II
List Entry Number:
1371404
Date first listed:
15-Jul-1987
List Entry Name:
The Octagon
Statutory Address:
THE OCTAGON, 10, COLLYWELL BAY ROAD
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Location

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Archive image, may not represent current condition of site.
Date:
1999-08-01
Reference:
IOE01/01233/02
Rights:
© Mr Michael J. Saunders. Source: Historic England Archive

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Official list entry

Heritage Category:
Listed Building
Grade:
II
List Entry Number:
1371404
Date first listed:
15-Jul-1987
List Entry Name:
The Octagon
Statutory Address 1:
THE OCTAGON, 10, COLLYWELL BAY ROAD

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:
THE OCTAGON, 10, COLLYWELL BAY ROAD

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

District:
Northumberland (Unitary Authority)
Parish:
Seaton Valley
National Grid Reference:
NZ 33766 76680

Details

SEATON SLUICE COLLYWELL BAY ROAD NZ 3376 (East side) 14/105 No. 10 (The Octagon) GV II House, formerly harbour master's office. Early to mid C18, perhaps by Vanbrugh. Rubble with cut quoins and dressings, C20 pantile roof with brick stack. Octagonal plan with slightly later wing on west. North elevation 1 storey on basement; octagonal part to left has band above basement. 9 steps up to 4-panel door under radial fanlight in round arch, with raised imposts and keystone; similarly-arched windows, above square-headed basement openings, to right of door, in left return and to rear. Moulded string below embattled parapet; flat roof. Wing to right 1 wide bay; Venetian window in similar surround above square-headed basement window, coped right gable with end stack. Right return shows blocked doorway with timber lintel. All windows are renewed small-paned casements, those on 1st floor with radial heads.

C20 pent extensions to rear of wing are not of special interest.

Listing NGR: NZ3376676680

Legacy

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

Legacy System number:
236069
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 The Octagon

Map

This map is for quick reference purposes only and may not be to scale. This copy shows the entry on 19-Jul-2026 at 04:47:55.

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© 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.

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