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Planning application

21 Mildmay Grove North, London, N1 4RH

Granted Islington P2026/1429/FUL Full Planning (Householder)

Works: Extension Loft or dormer Demolition Small 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

Demolition of existing single storey rear extension and construction of full width rear extension at lower ground and half width rear extension at upper ground, with associated landscaping and internal alterations. Addition of roof terrace at first floor level and rooflight to existing second floor roof.

As published by the council, reference P2026/1429/FUL

Application record

Reference
P2026/1429/FUL
Type
Full Planning (Householder)
Status
Granted As published: FINAL DECISION
Decision
Granted As published: Approve with conditions
Received
3 Jun 2026
Validated
3 Jun 2026
Decided
8 Sep 2026
Ward
Mildmay
Decision by
Delegated
Postcode
N1 4RH

Timeline

Dates from the published record

  1. 3 Jun 2026

    Received by Islington

  2. 25 Jul 2026

    Added to PlanIndex

  3. 8 Sep 2026

    Decision issued: Approve with conditions

Documents

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

45 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 this grant of permission means

Islington granted permission on 8 September 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 0.3 miles

  • Flat B, 9 Mildmay Grove North, London, N1 4RH

    P2024/2305/FUL Submitted 29 Jul 2024 50 yards away

    Opening of existing blocked up window and installation of window on the front elevation. Additional window to the side elevation at ground floor level. Enlargement of the existing rear door and installation of patio doors

    Granted Full applications Windows or glazing 11 docs

  • Ground Floor Flat, 10 Mildmay Grove South, London, N1 4RL

    P2025/2418/FUL Submitted 22 Aug 2025 100 yards away

    Replacement of single glazed timber windows with double glazed timber windows (

    Granted Full applications Windows or glazing

  • First Floor Flat, 10 Mildmay Grove South, London, N1 4RL

    P2024/2737/FUL Submitted 11 Sep 2024 100 yards away

    Replacement of single glazed first floor windows with double glazed windows, two to front elevation and one to rear elevation.

    Granted Full applications Windows or glazing 9 docs

  • 28 Mildmay Grove South, Islington, London

    P2019/3359/TRE Submitted 11 Nov 2019 100 yards away

    Rear garden Ash (T1): Fell Ash (T2): Reduce eastern, over-extended crown by 3-4m

    Granted Trees 3 docs

  • Besant Court, 104 Newington Green Road, London, N1 4RE

    P2026/2164/FUL Submitted 25 Aug 2026 100 yards away

    87% historically approved · decision due ~20 Oct

    Proposed rooftop telecommunications installation comprising the installation of

    Awaiting decision Full applications

  • 55 Mildmay Park, London, N1 4NB

    P2023/0852/TRE Submitted 22 Mar 2023 100 yards away

    Rear garden (T1) Oak - Crown reduce asymmetric crown on the South side (of the tree) by approx. 8 feet leaving a more balanced crown. Remove small, tangled branches to encourage future healthy growth (crown thin by a maximum of 20%).

    Granted Trees 2 docs

In Islington

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    23 Framfield Road, London, N5 1UU

    Erection of outrigger dormer extension and all associated works.

    Received 2 Oct, published by the council 11 Oct 2026 Householder
  • P2026/2593/FUL Awaiting decision

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    Erection of mansard roof extension.

    Received 1 Oct, published by the council 2 Oct 2026 Householder
  • P2026/2124/FUL Granted

    13 Willow Bridge Road, London, N1 2LB

    Installation of mechanical plant comprising air source heat pumps and an air han

    Received 7 Aug, published by the council 19 Aug 2026 Householder
  • P2026/0821/FUL Granted

    32 Harberton Road, London, N19 3JR

    Retention of 1x bike store and 1x bin store within front garden

    Received 26 Mar, published by the council 25 Jul 2026 Householder
  • P2026/2571/FUL Awaiting decision

    3 Sotheby Road, London, N5 2UP

    Proposed replacement front boundary wall with railings, front garden alterations to enlarge lightwell, cycle and refuse storage and refurbished stone front steps.

    Received 29 Sep, published by the council 11 Oct 2026 Householder