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Planning application

51 Millway London NW7 3QT

Decided Barnet 25/4178/192 Proposed Lawful Development Certificate

Works: Extension Loft or dormer Demolition Windows or glazing Small domestic

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

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Roof extension involving hip to gable, rear dormer window with juliette balcony and 2no. front facing rooflights. New side gable window. New front porch following the demolition of existing porch

As published by the council, reference 25/4178/192

Application record

Reference
25/4178/192
Type
Proposed Lawful Development Certificate
Status
Lawful
Decision
Lawful
Received
17 Oct 2025
Validated
22 Oct 2025
Decided
18 Nov 2025
Ward
Mill Hill
Decision by
Delegated Decision
Postcode
NW7 3QT

Timeline

Dates from the published record

  1. 17 Oct 2025

    Received by Barnet

  2. 22 Oct 2025

    Validated

    Checked as complete and ready for consideration.

  3. 18 Nov 2025

    Decision issued: Lawful

  4. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice registered in London

14 applications on PlanIndex · across 8 councils

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See who's behind it

Documents

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

14 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.

Trade members open them from here.

Open the documents

After the decision

The process from here

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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

  • 51 Millway London NW7 3QT

    26/1334/PNH Submitted 10 Apr 2026 4m away

    57% historically approved · decision due ~5 Jun

    Single storey rear extension with a proposed depth of 6.00m, maximum height of 4.00m and an eaves height of 2.55m

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  • 51 Millway London NW7 3QT

    26/0096/192 Submitted 12 Jan 2026 4m away

    79% historically approved · decision due ~1 Apr

    Single storey rear extension

    Awaiting decision Lawful development Extension 11 docs
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  • 51 Millway London NW7 3QT

    25/4181/HSE Submitted 17 Oct 2025 4m away

    Part single, part two-storey rear extension (AMENDED PROPOSAL)

    Granted Householder Extension 19 docs
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  • 60 Millway London NW7 3RA

    26/2812/HSE Submitted 30 Jul 2026 72m away

    77% historically approved · decision due ~24 Sep

    Two storey side extension linking to house and single storey rear infill extension following demolition of the existing garage. Associated alterations to roof

    Awaiting decision Householder Extension Demolition
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  • 3A Newcombe Park London NW7 3QN

    25/4172/FUL Submitted 17 Oct 2025 80m away

    Change of use from C3 (Residential) to short-term/self-catering accommodation (C1/Sui Generis)

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  • 91 Millway London NW7 3QT

    26/2787/RCU Submitted 28 Jul 2026 89m away

    79% historically approved · decision due ~7 Oct

    Alteration and extension of the existing rear patio including new access steps to garden, installation of a retractable roof pergola and addition of a 2m-high boundary fence to one side (Retrospective Application)

    Awaiting decision Extension
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In Barnet

  • 26/1907/191 Decided

    8 Golders Manor Drive London NW11 9HT

    Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)

    21 May 2026 Lawful development
  • 26/2059/192 Decided

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    3 Jun 2026 Lawful development
  • 26/2066/192 Decided

    355 Hendon Way London NW4 3NB

    Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)

    3 Jun 2026 Lawful development
  • 26/1663/192 Decided

    152 Deans Lane Edgware HA8 9NT

    Change of use from single family dwellinghouse (Class C3a) to supported living accommodation Class C3b)

    5 May 2026 Lawful development
  • 26/2025/192 Decided

    18 Hale Drive London NW7 3DU

    Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window

    1 Jun 2026 Lawful development