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Planning application

14 Walfield Avenue London N20 9PR

Granted Barnet 25/4815/192 Proposed Lawful Development Certificate

Works: Extension Loft or dormer 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 and 3no. front facing rooflights. New front porch. Erection of a rear outbuilding.

As published by the council, reference 25/4815/192

Application record

Reference
25/4815/192
Type
Proposed Lawful Development Certificate
Status
Lawful
Decision
Granted As published: Lawful
Received
27 Nov 2025
Validated
2 Dec 2025
Decided
22 Jan 2026
Ward
Barnet Vale
Decision by
Delegated Decision
Postcode
N20 9PR

Site history

Applications at this address on the Barnet register

This site has had 2 applications since 2025: 2 approved, 0 refused.

  • 25/4817/PNH Granted

    14 Walfield Avenue London N20 9PR

    Ground floor single storey rear extension projecting 4m from existing rear wall and 3m in height. Demolition of existing garage.

    Decided 13 Jan 2026 Prior approval

Timeline

Dates from the published record

  1. 27 Nov 2025

    Received by Barnet

  2. 2 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 22 Jan 2026

    Decision issued: Lawful

  4. 10 Aug 2026

    Added to PlanIndex

Documents

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

5 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 22 January 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 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

  • 14 Walfield Avenue London N20 9PR

    25/4817/PNH Submitted 27 Nov 2025 50 yards away

    Ground floor single storey rear extension projecting 4m from existing rear wall and 3m in height. Demolition of existing garage.

    Granted Prior approval Extension Demolition 6 docs
    Small domestic

  • 21 Walfield Avenue London N20 9PS

    25/3858/PNH Submitted 18 Sep 2025 50 yards away

    56% historically approved · decision due ~14 Nov

    Single storey rear extension with a proposed depth of 5.00m, maximum height of 3.70m and eaves height of 3.00m.

    Awaiting decision Prior approval Extension 3 docs
    Small domestic

  • Outside 47 Walfield Avenue London N20 9PS

    25/4407/LIC Submitted 3 Nov 2025 100 yards away

    Installation of 1no. 9m wooden pole

    Withdrawn 2 docs

  • Outside 47 Walfield Avenue London N20 9PS

    25/4234/LIC Submitted 22 Oct 2025 100 yards away

    79% historically approved · decision due ~17 Dec

    Installation of 1no. 9m wooden pole

    Awaiting decision

  • 1515 High Road London N20 9PJ

    25/4321/PNH Submitted 29 Oct 2025 100 yards away

    Single storey L-shaped rear extension with proposed depths of 3.0 metres and 4.85 metres, maximum height of 3.0 metres and eaves height of 2.90 metres, following demolition of existing conservatory and garage.

    Granted Prior approval Extension Demolition 16 docs
    Small domestic

  • 1515 High Road London N20 9PJ

    25/4919/192 Submitted 8 Dec 2025 100 yards away

    80% historically approved · decision due ~4 Feb

    Single storey rear extension with 1no. rooflight and new patio area following demolition of existing conservatory and garage

    Awaiting decision Lawful development Extension Loft or dormer +1 14 docs
    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