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Planning application

51 Millway London NW7 3QT

Refused Barnet 26/1334/PNH Prior Notification (Householder)

Works: Extension Small domestic

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

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

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

As published by the council, reference 26/1334/PNH

Application record

Reference
26/1334/PNH
Type
Prior Notification (Householder)
Status
Prior Approval Required and Refused
Decision
Refused As published: Prior Approval Required and Refused
Received
10 Apr 2026
Validated
10 Apr 2026
Decided
21 May 2026
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
  • 26/0096/192 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
  • 25/4178/192 Granted

    51 Millway London NW7 3QT

    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

    Decided 18 Nov 2025 Lawful development

Timeline

Dates from the published record

  1. 10 Apr 2026

    Received by Barnet

  2. 21 May 2026

    Decision issued: Prior Approval Required and Refused

  3. 25 Jul 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

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Documents

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

15 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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What this refusal means

Barnet refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 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

  • 51 Millway London NW7 3QT

    25/4178/192 Submitted 17 Oct 2025 50 yards away

    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

    Granted Lawful development Extension Loft or dormer +2 14 docs
    Small 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

  • 26/3937/PNH Awaiting decision

    85 Cotswold Gardens London NW2 1PE

    Single storey rear extension with a proposed depth of 5.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.

    29 Oct 2026 Prior approval
  • 26/3927/PNH Awaiting decision

    56 Brookfield Crescent London NW7 2DG

    Single Storey Rear Extension with a depth of 6.00 metres, a maximum height of 3.53 metres and an eaves height of 3.00 metres

    Received 28 Oct, published by the council 29 Oct 2026 Prior approval
  • 26/3923/PNH Awaiting decision

    31 Woodlands London NW11 9QJ

    2no. Single storey rear extensions with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 3.00 metres. Following demolition of the existing rear extension and patio.

    Received 28 Oct, published by the council 29 Oct 2026 Prior approval
  • 26/3877/PNH Awaiting decision

    90 Cumbrian Gardens London NW2 1EL

    Single storey rear extension with a proposed depth of 6.00 metres, a maximum height of 3.00 metres and an eaves height of 3.00 metres, following demolition of the existing conservatory

    26 Oct 2026 Prior approval
  • 26/3874/PNH Awaiting decision

    9 Devonshire Road London NW7 1NE

    Single storey rear extension with a proposed depth of 6 metres, maximum height of 3.4 metres and eaves height of 3 metres

    26 Oct 2026 Prior approval