Skip to content
PlanIndex Get alerts
Menu

Planning application

78 Lyonsdown Road Barnet EN5 1JL

Granted Barnet 26/1164/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 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

As published by the council, reference 26/1164/HSE

Application record

Reference
26/1164/HSE
Type
Householder Application
Status
Approved subject to conditions
Decision
Granted As published: Approve subject to conditions
Received
26 Mar 2026
Validated
26 Mar 2026
Decided
18 May 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: 1 approved, 0 refused.

  • 26/3619/HSE Awaiting decision

    78 Lyonsdown Road Barnet EN5 1JL

    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

    Submitted 6 Oct 2026 Householder
  • 25/5114/192 Awaiting decision

    78 Lyonsdown Road Barnet EN5 1JL

    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)

    Submitted 19 Dec 2025 Lawful development

Timeline

Dates from the published record

  1. 26 Mar 2026

    Received by Barnet

  2. 18 May 2026

    Decision issued: Approve subject to conditions

  3. 25 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

CG Architects Agent, an architecture practice

77 applications on PlanIndex · across 12 councils · 83% 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Barnet granted permission on 18 May 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

  • 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

  • 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

  • 80 Lyonsdown Road Barnet EN5 1JL

    25/4882/HSE Submitted 5 Dec 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

    26/3619/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

    78% historically approved · decision due ~11 Dec

    Demolition of roof of existing two-storey side extension and flat-roof replacement (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 +2

In Barnet

  • 26/3476/HSE Granted

    116 Chase Way London N14 5DH

    Single storey rear extension with 2no. rooflights. Changes to fenestration; new doors, 3no. new windows to rear elevation

    Received 24 Sep, published by the council 25 Sep 2026 Householder
  • 26/4019/HSE Awaiting decision

    38 Asmuns Hill London NW11 6ET

    Replacement of windows with vacuum-glazed windows (excluding subframes) and new french doors to rear

    6 Nov 2026 Householder
  • 26/4023/HSE Awaiting decision

    61 Bullescroft Road Edgware HA8 8RN

    Single storey front, side and rear wraparound extension incorporating porch following conversion of the existing garage, including window to replace garage door

    6 Nov 2026 Householder
  • 26/4015/HSE Awaiting decision

    6 Raeburn Close London NW11 6UG

    Alterations to the rear ground floor elevation, including replacement of the existing door and two windows with timber framed French doors and windows. Replacement of existing single glazed windows with new double glazed timber windows. Replacement of the existing rear patio doors with double glazed timber doors. Formation of a new rear patio. Addition of new bin storage at front

    Received 5 Nov, published by the council 6 Nov 2026 Householder
  • 26/4012/HSE Awaiting decision

    59 Hendon Way London NW2 2LX

    Two storey side and rear extension. New front porch

    5 Nov 2026 Householder