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Planning application

Haven House, 280 Holly Park, London, N4 4AQ

Granted Islington P2026/0335/COL Certificate of Lawfulness (Existing)

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Certificate of Lawful Existing Use or Development confirming that planning permi

As published by the council, reference P2026/0335/COL

Application record

Reference
P2026/0335/COL
Type
Certificate of Lawfulness (Existing)
Decision
Approve with no conditions
Received
9 Feb 2026
Validated
12 Mar 2026
Decided
20 Apr 2026
Postcode
N4 4AQ

Site history

Applications at this address on the Islington register

This site has had 3 applications since 2026: 2 approved, 0 refused.

  • P2026/0344/TRE Granted

    Haven House, 280 Holly Park, London, N4 4AQ

    T1 Oak tree: Reduce lateral spread adjacent to building by 3m to suitable growt

    Decided 12 Feb 2026 Trees
  • P2026/0040/TRE Awaiting decision

    Haven House, 280 Holly Park, London, N4 4AQ

    T1 Oak tree: Reduce height and spread of crown by approx 3m from branch tips back to suitable growth points. Reduce lateral spread adjacent building by 4m to suitable growth points. Remove deadwood. Remove epicormic growth from main stem to crown break.

    Submitted 7 Jan 2026 Trees

Timeline

Dates from the published record

  1. 9 Feb 2026

    Received by Islington

  2. 12 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 20 Apr 2026

    Decision issued: Approve with no conditions

  4. 25 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Planning Potential Ltd. Agent, a planning consultancy registered in London

Active · incorporated 2005 · London

808 applications on PlanIndex · across 140 councils · 90% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Depaul Housing Services Applicant, registered in London

Active · incorporated 2013 · London

1 application on PlanIndex

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

What this grant of permission means

Islington granted permission on 20 April 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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 500 metres

  • Haven House, 280 Holly Park, London, N4 4AQ

    P2026/0344/TRE Submitted 10 Feb 2026 0m away

    T1 Oak tree: Reduce lateral spread adjacent to building by 3m to suitable growt

    Granted Trees

  • Haven House, 280 Holly Park, London, N4 4AQ

    P2026/0040/TRE Submitted 7 Jan 2026 13m away

    100% historically approved · decision due ~6 Mar

    T1 Oak tree: Reduce height and spread of crown by approx 3m from branch tips back to suitable growth points. Reduce lateral spread adjacent building by 4m to suitable growth points. Remove deadwood. Remove epicormic growth from main stem to crown break.

    Awaiting decision Trees 4 docs

  • 55 Crouch Hill, London, N4 4AJ

    P2023/0423/COLP Submitted 8 Feb 2023 95m away

    Erection of hip to gable and rear dormer roof extensions, installation of front rooflights. Erection of single storey shed outbuilding and single storey side extension.

    Granted Lawful development Extension Loft or dormer 10 docs
    Small domestic

  • 55 Crouch Hill , London, N4 4AJ

    P2023/0438/PRA Submitted 9 Feb 2023 95m away

    Notification of Prior Approval (Householder) for the erection of single storey rear extension (6m in depth, maximum height of 3m and eaves height of 3m)

    Granted Prior approval Extension 6 docs
    Small domestic

  • Flat 3, 21 Crouch Hill, London, N4 4AB

    P2023/0572/FUL Submitted 27 Feb 2023 131m away

    Conversion of the existing roofspace to habitable use with associated extension to width of ridge line; erection of side and rear dormers with associated rear integral balcony; 1 no. new replacement front facing rooflight and 1 no. rear facing rooflight

    Refused Householder Extension Loft or dormer 12 docs
    Domestic

  • 34 Sparsholt Road, London, N19 4EL

    P2026/0403/FUL Submitted 13 Feb 2026 132m away

    Replacement of single glazed timber framed windows with double glazed timber fra

    Granted Full applications Windows or glazing

In Islington

  • P2026/2422/COL Status unknown

    116, Fairbridge Road, London, N19 3HU

    Certificate of Lawfulness (Existing) for the use of the property as a 6-bedroom

    15 Sep 2026 Lawful development
  • P2026/2408/COL Status unknown

    10 Elphinstone Street, London, N5 1BS

    Certificate of lawful development (Proposed) for rear loft conversion with rear

    14 Sep 2026 Lawful development
  • P2026/2348/COL Awaiting decision

    Basement Flat, 49 King Henry's Walk, London, N1 4NH

    Certificate of Lawfulness (Existing) to confirm the use of the basement as a one

    7 Sep 2026 Lawful development
  • P2026/1782/COL Granted

    16 Hungerford Road, London, N7 9LX

    Certificate of Lawfulness (Proposed) for the installation of an air source heat

    23 Jul 2026 Lawful development
  • P2026/2266/COL Awaiting decision

    32 Gillespie Road, London, N5 1LN

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

    27 Aug 2026 Lawful development