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Planning application

80 Lyonsdown Road Barnet EN5 1JL

Granted Barnet 25/4882/HSE Householder Application

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

Single storey rear extension. Two storey side infill extension. New front porch. Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights. Changes to fenestration.

As published by the council, reference 25/4882/HSE

Application record

Reference
25/4882/HSE
Type
Householder Application
Status
Approved subject to conditions
Decision
Granted As published: Approve subject to conditions
Received
5 Dec 2025
Validated
5 Dec 2025
Decided
15 Jan 2026
Ward
Barnet Vale
Decision by
Delegated Decision
Postcode
EN5 1JL

Site history

Applications at this address on the Barnet register

This site has had 3 applications since 2025: 2 approved, 0 refused.

  • 25/5100/HSE Awaiting decision

    80 Lyonsdown Road Barnet EN5 1JL

    New front hardstanding and vehicular access to provide off-street parking. New front hard and soft landscaping and brick fence wall

    Submitted 18 Dec 2025 Householder
  • 25/3389/HSE Granted

    80 Lyonsdown Road Barnet EN5 1JL

    Single storey rear extension. Two storey side infill extension. New front porch. Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights. Changes to fenestration

    Decided 8 Oct 2025 Householder

Timeline

Dates from the published record

  1. 5 Dec 2025

    Received by Barnet

  2. 15 Jan 2026

    Decision issued: Approve subject to conditions

  3. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

CG Architects Agent, an architecture practice

78 applications on PlanIndex · across 12 councils · 83% granted

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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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What this grant of permission means

Barnet granted permission on 15 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 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

  • 80 Lyonsdown Road Barnet EN5 1JL

    25/5100/HSE Submitted 18 Dec 2025 50 yards away

    77% historically approved · decision due ~13 Feb

    New front hardstanding and vehicular access to provide off-street parking. New front hard and soft landscaping and brick fence wall

    Awaiting decision Householder 7 docs
    Small domestic

  • 80 Lyonsdown Road Barnet EN5 1JL

    25/3389/HSE Submitted 13 Aug 2025 50 yards away

    Single storey rear extension. Two storey side infill extension. New front porch. Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights. Changes to fenestration

    Granted Householder Extension Loft or dormer +1 14 docs
    Small domestic

  • 78 Lyonsdown Road Barnet EN5 1JL

    26/1164/HSE Submitted 26 Mar 2026 50 yards away

    Single storey side and rear extension. Front porch extension. Roof extension involving hip to gable, rear dormer window with juliette balcony, 3no. front facing rooflights and new side gable window

    Granted Householder Extension Loft or dormer +1 14 docs
    Small domestic

  • 78 Lyonsdown Road Barnet EN5 1JL

    25/5114/192 Submitted 19 Dec 2025 50 yards away

    80% historically approved · decision due ~13 Feb

    Removal and alteration of existing roof above existing two storey side. (Phase 1) Roof extension involving hip to gable, rear dormer with juliette balcony, 3no. front facing rooflights and new side gable window. (Phase 2)

    Awaiting decision Lawful development Extension Loft or dormer +1 12 docs

  • 78 Lyonsdown Road Barnet EN5 1JL

    26/3619/HSE Submitted 6 Oct 2026 50 yards away

    77% historically approved · decision due ~2 Dec

    Single storey side and rear extension. Front porch extension. Conversion of garage into habitable room, insertion of window to replace existing garage door. Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights. New side gable window

    Awaiting decision Householder Extension Loft or dormer +1
    Small domestic

  • 82 Lyonsdown Road Barnet EN5 1JL

    26/3746/192 Submitted 16 Oct 2026 50 yards away

    79% historically approved · decision due ~11 Dec

    Construction of a new flat roof following removal of an existing left hand side pitched roof (Stage 1). Alterations and extensions to roof including two partial hip to gables and rear dormer roof extensions and 3no. front facing roof lights (Stage 2).

    Awaiting decision Extension Loft or dormer

In Barnet

  • 26/3827/HSE Awaiting decision

    43 Hermitage Lane London NW2 2HE

    Single storey rear extension with 3no. rooflights following demolition of the existing conservatory. Replacement front bay window and entrance porch. First floor rear juliette balcony. Changes to fenestration including new window openings and enlarged front rooflight

    22 Oct 2026 Householder
  • 26/3833/HSE Awaiting decision

    47 Holne Chase London N2 0QG

    Single storey rear extension. Replacement of single glazed windows with double glazing. Alterations to side/rear fenestration. Alterations and replacement of existing rear dormer window addition of 2no. side dormer windows and 3no. rooflights. Installation of cameras and wall lights. Replacement of the front entrance and garage doors, installation of timber side garden gates

    22 Oct 2026 Householder
  • 26/3815/HSE Awaiting decision

    17 Hurstwood Road London NW11 0AS

    Single storey rear extension

    21 Oct 2026 Householder
  • 26/3800/HSE Awaiting decision

    29 Monks Avenue Barnet EN5 1BZ

    Single storey side and rear infill extension including new front porch following demolition of the side/rear storage.

    Received 20 Oct, published by the council 21 Oct 2026 Householder
  • 26/3791/HSE Awaiting decision

    149 Montrose Avenue Edgware HA8 0DZ

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

    Received 20 Oct, published by the council 21 Oct 2026 Householder