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Planning application

51 Millway London NW7 3QT

Granted 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

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

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
Granted As published: Lawful
Received
17 Oct 2025
Validated
22 Oct 2025
Decided
18 Nov 2025
Ward
Mill Hill
Decision by
Delegated Decision
Postcode
NW7 3QT

Site history

Applications at this address on the Barnet register

This site has had 5 applications since 2025: 2 approved, 1 refused.

  • 26/3048/PNH Decided

    51 Millway London NW7 3QT

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.725 metres and eaves height of 2.401 metres.

    Submitted 19 Aug 2026 Prior approval
  • 26/1334/PNH Refused

    51 Millway London NW7 3QT

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

    Decided 21 May 2026 Prior approval
  • 26/0096/192 Awaiting decision

    51 Millway London NW7 3QT

    Single storey rear extension

    Submitted 12 Jan 2026 Lawful development
  • 25/4181/HSE Granted

    51 Millway London NW7 3QT

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

    Decided 17 Dec 2025 Householder

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

RJF Architecture Agent, an architecture practice registered in London

Active · incorporated 2018 · London

16 applications on PlanIndex · across 9 councils · 64% 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

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.

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Open the documents

What this grant of permission means

Barnet granted permission on 18 November 2025, 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 0.3 miles

  • 51 Millway London NW7 3QT

    26/1334/PNH Submitted 10 Apr 2026 50 yards away

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

    Refused Prior approval Extension 15 docs
    Small domestic

  • 51 Millway London NW7 3QT

    26/0096/192 Submitted 12 Jan 2026 50 yards away

    80% historically approved · decision due ~1 Apr

    Single storey rear extension

    Awaiting decision Lawful development Extension 11 docs
    Small domestic

  • 51 Millway London NW7 3QT

    25/4181/HSE Submitted 17 Oct 2025 50 yards away

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

    Granted Householder Extension 19 docs
    Domestic

  • 60 Millway London NW7 3RA

    26/2812/HSE Submitted 30 Jul 2026 100 yards 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

    Decided Householder Extension Demolition
    Small domestic

  • 3A Newcombe Park London NW7 3QN

    25/4172/FUL Submitted 17 Oct 2025 100 yards away

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

    Refused Full applications 14 docs

  • 91 Millway London NW7 3QT

    26/2787/RCU Submitted 28 Jul 2026 100 yards away

    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)

    Refused Extension
    Small domestic

In Barnet

  • 26/2679/192 Granted

    21 Myddelton Park London N20 0JH

    Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).

    Received 20 Jul, published by the council 7 Aug 2026 Lawful development
  • 26/1362/191 Refused

    145 Cotswold Gardens London NW2 1PL

    Use as a House in Multiple Occupation (HMO) for 6 people

    Received 14 Apr, published by the council 25 Jul 2026 Lawful development
  • 26/1907/191 Granted

    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)

    Received 21 May, published by the council 16 Aug 2026 Lawful development
  • 26/2392/192 Refused

    6 Mostyn Road Edgware HA8 0JD

    New front hardstanding and vehicular access to provide off-street parking

    Received 23 Jun, published by the council 9 Aug 2026 Lawful development
  • 26/2059/192 Refused

    Low Ridge Rowley Lane Barnet EN5 3HS

    Erection of a rear outbuilding

    Received 3 Jun, published by the council 16 Aug 2026 Lawful development