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Planning application

8 Cornwallis Square, London, N19 4LY

Withdrawn Islington P2025/3436/COL Certificate of Lawfulness (Proposed)

Works: Extension Loft or dormer Roofing

Withdrawn before a decision, so it carries no planning weight. A revised scheme can be submitted at any time.

Proposal

Front roof slope insertion of rooflight not to exceed 150mm high; rear roof slope creation of flat dormer roof not to exceed 40m3, set back from eaves by minimum 200mm, and not to exceed existing ridge height; ground floor rear extension not to exceed 3m length, flat roof/eaves not to exceed 3m high.

As published by the council, reference P2025/3436/COL

Application record

Reference
P2025/3436/COL
Type
Certificate of Lawfulness (Proposed)
Status
Withdrawn As published: WITHDRAWN AFTER VALID
Decision
Withdrawn As published: WITHDRAWN AFTER VALID
Received
8 Dec 2025
Validated
15 Dec 2025
Ward
Tollington
Postcode
N19 4LY

Site history

Applications at this address on the Islington register

This site has had 3 applications since 2025: 2 approved, 0 refused.

  • P2026/1370/FUL Granted

    8 Cornwallis Square, London, N19 4LY

    Installation of externally-mounted flue to rear elevation.

    Decided 21 Jul 2026 Householder
  • P2026/0215/FUL Granted

    8 Cornwallis Square, London, N19 4LY

    Erection of ground floor single storey rear extension, loft conversion and dorme

    Decided 24 Mar 2026 Householder

Timeline

Dates from the published record

  1. 8 Dec 2025

    Received by Islington

  2. 15 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

7 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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Open the documents

What withdrawal means

The applicant withdrew this application before Islington decided it, and is free to submit a revised scheme at any time. More in our guide to what happens after a planning decision.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 8 Cornwallis Square, London, N19 4LY

    P2026/1370/FUL Submitted 27 May 2026 50 yards away

    Installation of externally-mounted flue to rear elevation.

    Granted Householder
    Domestic

  • 8 Cornwallis Square, London, N19 4LY

    P2026/0215/FUL Submitted 28 Jan 2026 50 yards away

    Erection of ground floor single storey rear extension, loft conversion and dorme

    Granted Householder Extension Loft or dormer
    Small domestic

  • 87 Marlborough Road, London, N19 4PA

    P2024/2589/FUL Submitted 28 Aug 2024 50 yards away

    Erection of mansard roof extension.

    Granted Full applications Extension Loft or dormer 11 docs

  • 89 Marlborough Road, London, N19 4PA

    P2026/0288/COL Submitted 4 Feb 2026 50 yards away

    Certificate of lawfulness (proposed) for addition of a second storey to existing

    Withdrawn Lawful development

  • 89 Marlborough Road, London, N19 4PA

    P2025/3173/FUL Submitted 18 Nov 2025 50 yards away

    Erection of single storey rear extension

    Granted Householder Extension
    Small domestic

  • Ground Floor Flat, 101 Marlborough Road, London, N19 4PA

    P2026/1214/FUL Submitted 22 May 2026 50 yards away

    Single storey side extension to ground floor flat and replacement front bay sash

    Granted Full applications Extension Windows or glazing
    Small domestic

In Islington

  • P2026/2548/COL Status unknown

    Flat 5, St Peter's Street Mews, London, N1 8JF

    Certificate of Lawful (Existing) Use for the use of the ground floor property kn

    Received 28 Sep, published by the council 29 Sep 2026 Lawful development
  • P2026/2522/COL Status unknown

    Flat 6, 1-2 St Peter's Street Mews, London, N1 8JF

    Certificate of Lawful (Existing) Use for the use of Flat 6 as a self-contained r

    Received 28 Sep, published by the council 29 Sep 2026 Lawful development
  • P2026/2549/COL Status unknown

    Flat A, 42 Dartmouth Park Hill, London, NW5 1HN

    Certificate of Lawfulness (Existing) for the conversion of Flat A from a 1-bedro

    Received 25 Sep, published by the council 28 Sep 2026 Lawful development
  • P2026/2266/COL Granted

    32 Gillespie Road, London, N5 1LN

    Erection of rear dormer roof extensions to main and outrigger roofs, installatio

    Received 27 Aug, published by the council 2 Sep 2026 Lawful development
  • P2026/2525/COL Status unknown

    10A Rock Street, London, N4 2DN

    Certificate of Lawfulness (Proposed) for use of the site as a 5-person small-sca

    Received 24 Sep, published by the council 25 Sep 2026 Lawful development