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Planning application

36 Thornhill Road, London, N1 1HW

Granted Islington P2025/3127/FUL Full Planning (Householder)

Works: Extension Loft or dormer Domestic

Read from the description, not a valuation. How we read the register

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

Proposal

Extension of existing mansard roof and replacement of existing roof terrace gla

As published by the council, reference P2025/3127/FUL

Application record

Reference
P2025/3127/FUL
Type
Full Planning (Householder)
Decision
Approve with conditions
Received
13 Nov 2025
Validated
13 Nov 2025
Decided
12 Mar 2026
Postcode
N1 1HW

Site history

Applications at this address on the Islington register

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

  • P2026/1527/AOD Granted

    36 Thornhill Road, London, N1 1HW

    Approval of details pursuant to Condition 4 (Construction Management Plan) of pl

    Decided 5 Aug 2026
  • P2025/3125/FUL Granted

    36 Thornhill Road, London, N1 1HW

    Extension of the existing basement

    Decided 11 Feb 2026 Householder

Timeline

Dates from the published record

  1. 13 Nov 2025

    Received by Islington

  2. 12 Mar 2026

    Decision issued: Approve with conditions

  3. 8 Aug 2026

    Added to PlanIndex

What this grant of permission means

Islington granted permission on 12 March 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 householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 36 Thornhill Road, London, N1 1HW

    P2026/1527/AOD Submitted 18 Jun 2026 0m away

    Approval of details pursuant to Condition 4 (Construction Management Plan) of pl

    Granted
  • 36 Thornhill Road, London, N1 1HW

    P2025/3125/FUL Submitted 6 Nov 2025 0m away

    Extension of the existing basement

    Granted Householder Extension
    Domestic
  • 30 Thornhill Road, London, N1 1HW

    P2026/0367/FUL Submitted 26 Feb 2026 0m away

    Change of use of part of the ground floor from retail/commercial (Use Order Clas

    Withdrawn Full applications
  • 6A Thornhill Road, London, N1 1HW

    P2025/2464/FUL Submitted 1 Sep 2025 0m away

    Erection of ancillary outbuilding in rear garden.

    Granted Householder
    Small domestic
  • 8 Albion Mews, London, N1 1JX

    P2024/1357/S73 Submitted 25 Apr 2024 24m away

    Variation of Condition 2 of Planning Permission ref: P2024/0264/FUL dated 28/03/2024 which sought permission to ‘Replace garage door with a single window. Replace glass roof to rear extension with insulated tile roof.’ This application seeks to change the material of the insulated roof to a rubber roof.

    Withdrawn Amendments Extension Windows or glazing 7 docs
  • 11 Malvern Terrace, London, N1 1HR

    P2024/0044 Submitted 4 Jan 2024 44m away

    Approval of Details Pursuant of Condition (3) MATERIALS (DETAILS): e) Details of new fireplaces including grate and surround of Planning permission reference P2022/3211/LBC, dated 03/11/2022 Single storey rear extension (following the demolition of existing single storey outbuilding and rear extensions). Replacement of non-original casement windows with timber sash windows. Internal alterations.

    Granted Conditions Extension Demolition +1 5 docs
    Small domestic

In Islington

  • P2026/2323/FUL Status unknown

    146 St John Street, London, EC1V 4UA

    Alteration, extension and conversion of existing mixed-use buildings (office and

    7 Sep 2026 Householder
  • P2026/1890/FUL Granted

    17 Belitha Villas, London, N1 1PE

    External lighting to front elevation, bin store and garden sauna to rear garden.

    21 Jul 2026 Householder
  • P2026/2288/FUL Status unknown

    34 Sudeley Street, London, N1 8HW

    Retrospective application for reroofing the hidden front 'butterfly roof and rea

    4 Sep 2026 Householder
  • P2026/1899/FUL Granted

    8 Sidney Grove, London, EC1V 7LP

    Proposed infilling of front first floor and second floor terrace areas and inser

    24 Jul 2026 Householder
  • P2026/1627/FUL Granted

    5 Cumberland Gardens, London, WC1X 9AF

    Installation of stone paving to front steps, installation of ASHP in garden and

    22 Jun 2026 Householder