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Planning application

P2026/0980/COL

4A Cowcross Street, London, EC1M 6DR

Granted Islington Certificate of Lawfulness (Existing)

Proposal

Certificate of Lawful (Existing) development for the use of the first, second and third floors as three self-contained studio flats (Class C3)

As published by the council, reference P2026/0980/COL

Timeline

Dates from the published record

  1. 14 Apr 2026

    Received by Islington

  2. 22 Jul 2026

    Decision issued: Approve with no conditions

  3. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • P2021/1290/AOD Granted

    11 St John Street, London, EC1M 4AA

    Approval of Details pursuant to condition 3 (window details) of planning permission reference: P2020/1361/FUL, dated: 26/11/2020 External alterations to the existing buildings, including remodelling of office receptions, replacement fenestration, replacement gates and railings, upgraded plant equipment, resurfacing of courtyard and other associated works as shown on submitted plans and drawings.

    29 Apr 2021 22m away Conditions
  • P2025/2035/FUL Awaiting decision

    Various Locations in LB Islington (EC1 Postcodes)

    Erection of pairs of poles with clear wire between the poles at 10 locations across the Borough comprising the City of London 'Eruv'

    17 Jul 2025 22m away Full applications
  • P2026/1643/FUL Awaiting decision

    Porters Place, 11-33, St John Street, London, EC1M 4AA

    Retention of security bars to external windows (Retrospective Application).

    23 Jun 2026 23m away Full applications
  • P2024/0064/FUL Withdrawn

    Greenhill House, 90-93 Cowcross Street, Clerkenwell, London, EC1M 6BF

    Remodelling of existing mansard roof (fourth floor); erection of roof extension (fifth floor) to provide additional office floorspace with associated roof terrace; reconfiguration of building entrance; extension to the lift overrun to the existing basement with cycle parking and associated works

    8 Jan 2024 26m away Full applications
  • P2025/2191/TRE Awaiting decision

    9 - 13, Denmark House, Cowcross Street, London

    Crown lift X5 trees to 2.4 meters. Tree species are European Linden.

    31 Jul 2025 37m away Trees
  • P2026/0213/TRE Granted

    9 - 13, Denmark House, Cowcross Street, London

    Black Locust/False acadia - Trim back tree 3 meters all over away from buildings to clear overhang from hotel

    28 Jan 2026 37m away Trees

In Islington

  • P2026/1005/COL Granted

    505A Hornsey Road, London

    Certificate of Lawfulness (Existing) for the use of the first, second and third floors as a 6-room large HMO (Use Class Sui Generis)

    15 Apr 2026 Lawful development
  • P2026/1434/COL Granted

    9 Alwyne Square, London, N1 2JX

    Installation of 3 rooflights in the rear roof slope.

    3 Jun 2026 Lawful development
  • P2026/1324/COL Granted

    Gough House, 1 Windsor Street, London, N1 8QA

    Certificate of Lawfulness (proposed) for the installation of low-level play equipment, seating, planter with trellis, grass matting and a self-closing child-safety gate fixed to existing metal hoop-top fencing.

    21 May 2026 Lawful development
  • P2026/1943/COL Awaiting decision

    49, Linton Street, London, N1 7AN

    Certificate of Lawfulness (Proposed) for the construction of a garden studio/outbuilding in rear garden.

    21 Jul 2026 Lawful development
  • P2026/1048/COL Granted

    Flat 24, 40 Danbury Street, London, N1 8JU

    Certificate of Lawfulness (Existing) to confirm the use of Flat 24 at first floor of 40 Danbury Street as a self-contained residential flat (Class C3)

    21 Apr 2026 Lawful development