Numbers 18, 19, 21 and 21A and Attached Railings

NUMBERS 18, 19, 21 AND 21A AND ATTACHED RAILINGS, 18, 19, 21, 21A, NORTHAMPTON SQUARE

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Overview

Heritage Category:
Listed Building
Grade:
II
List Entry Number:
1195694
Date first listed:
29-Sept-1972
List Entry Name:
Numbers 18, 19, 21 and 21A and Attached Railings
Statutory Address:
NUMBERS 18, 19, 21 AND 21A AND ATTACHED RAILINGS, 18, 19, 21, 21A, NORTHAMPTON SQUARE
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Archive image, may not represent current condition of site.
Date:
2006-01-28
Reference:
IOE01/14854/22
Rights:
© Mr Adam Watson. Source: Historic England Archive

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Official list entry

Heritage Category:
Listed Building
Grade:
II
List Entry Number:
1195694
Date first listed:
29-Sept-1972
Date of most recent amendment:
30-Sept-1994
List Entry Name:
Numbers 18, 19, 21 and 21A and Attached Railings
Statutory Address 1:
NUMBERS 18, 19, 21 AND 21A AND ATTACHED RAILINGS, 18, 19, 21, 21A, NORTHAMPTON SQUARE

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:
NUMBERS 18, 19, 21 AND 21A AND ATTACHED RAILINGS, 18, 19, 21, 21A, NORTHAMPTON SQUARE

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

County:
Greater London Authority
District:
Islington (London Borough)
Parish:
Non Civil Parish
National Grid Reference:
TQ 31788 82642

Details

ISLINGTON

TQ3182NE NORTHAMPTON SQUARE 635-1/69/665 (East side) 29/09/72 Nos.18,19,21 & 21A and attached railings (Formerly Listed as: NORTHAMPTON SQUARE Nos.18A & 21A)

GV II

Terraced houses, now offices. c.1810. Discoloured brick set in Flemish bond, stucco, mansard roofs of Welsh slate. Nos 19, 21 and 21A four storeys over basement, no. 18 no basement; the original two-window range of the houses survives but cannot be expressed in terms of the present numbering. Round-arched entrances, those facing Northampton Square having engaged Greek Doric columns, cornice with Greek key pattern, fanlight and panelled doors of original design; in the return to Ashby Street the entrance now consists of a flat-arched entrance with simple doorcase and overlight; in Sebastian Street there is one entrance with Ionic columns with acanthus leaves to the necking, modillion cornice, fanlight with decorative glazing and panelled door of original design; and another entrance further east in a single-storey extension, round-arched with cornice and fanlight, and flanked by coupled pilasters carrying entablature. Ground-floor windows round-arched and set within a round arch with gauged brick head; stucco storey band; first-floor windows flat-arched with gauged brick heads recessed within a round-arched panel with gauged brick head, and individual iron balconies; second-floor windows flat-arched. 6/6 sashes of original design to no 21A first and second floors. Brick dentil cornice and parapet. Dormers in mansard roof, stacks to original party walls. Return to Ashby Street has flat-arched windows to ground floor and lacks arches over first floor windows; 6/6 sashes of original design to upper windows. Return to Sebastian Street has four-window range, the two nearest to Northampton Square blank, and original rainwater head. Area railings with urn standards and spearhead finials. (The squares of Islington Part I. Finsbury and Clerkenwell: London: 1990-: P.65.).

Listing NGR: TQ3178882642

Legacy

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

Legacy System number:
369181
Legacy System:
LBS

Sources

Books and journals
Cosh, M, The Squares of Islington in Finsbury and Clerkenwell, (1990), 65

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 Numbers 18, 19, 21 and 21A and Attached Railings

Map

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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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