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Planning application

26/2481/192

39 Windsor Road London N3 3SN

Awaiting decision Barnet Proposed Lawful Development Certificate

Proposal

Roof extension involving hip to gable with rear dormer windows, 1no. front, 1no. rear facing rooflight following demolition of existing chimney

As published by the council, reference 26/2481/192

Timeline

Dates from the published record

  1. 30 Jun 2026

    Received by Barnet

  2. 1 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Barnet for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 26/1570/S73 Awaiting decision

    88 Hendon Lane London N3 3SL

    Variation condition 1 (Approved Plans) of planning permission reference 23/2011/FUL dated 07/11/23 for 'Conversion of existing property into 3no. self-contained flats including; Roof extension with rear dormer window and rooflight; Single storey side and rear extension to rear projection; Associated amenity space, refuse and recycling storage and cycle parking.' Variation to include change of the height of the side infill extension to be 2.5m high and set in by 0.35m from the neighbouring boundary

    27 Apr 2026 146m away Conditions
  • TPP/0180/26 Granted

    Elizabethan Court 110 Hendon Lane London N3 3SU

    3 x Lime (applicants ref. T2, T15, T17) - Remove epicormic growth to leave 5.0m clear stem. Standing in Group G7 of Tree Preservation Order. 1 x Lime (applicants ref. T3) - Remove basal and epicormic growth to leave 5.0m clear stem. Standing in Group G7 of Tree Preservation Order. 2 x Lime (applicants ref. T4, T5) - Remove basal and epicormic growth to leave 5.0m clear stem. Remove Ivy and do not allow to re-establish. Standing in Group G7 of Tree Preservation Order. 2 x Lime (applicants ref. T6, T7) - Remove basal and epicormic growth to leave 5.0m clear stem. Trim roof structure sheet to remove roof/tree contact. Standing in Group G7 of Tree Preservation Order. 1 x Lime (applicants ref. T8) - Remove basal and epicormic growth to leave 5.0m clear stem. Trim roof structure sheet to remove roof/tree contact. Remove roof beam from stem. Standing in Group G7 of Tree Preservation Order. 1 x Lime (applicants ref. T9) - Remove (fell) to near ground level and grind stump. Standing in Group G7 of Tree Preservation Order. 1 x Lime (applicants ref. T13) - Remove (fell) and grind stump to negate trip hazard. Standing in Group G7 of Tree Preservation Order.

    25 Mar 2026 173m away Trees
  • TCP/0236/26 Awaiting decision

    23 Village Road London N3 1TL

    1x Douglas Fir - Crown thin to let more light through but keeping the trees natural shape. Standing in T1 of Tree Preservation Order.

    23 Apr 2026 188m away Trees
  • TCP/0170/26 Awaiting decision

    15 Village Road London N3 1TL

    1 x Leaning Willow (applicants ref. T1) - Cut to ground level and replant with a suitable species.

    20 Mar 2026 267m away Trees
  • 26/2709/HSE Awaiting decision

    The Bungalow Village Road London N3 1TL

    Replacement of front door and picket fence to front garden. Replacement and alteration of existing ground floor rear windows. Painting of rendered external walls white.

    22 Jul 2026 274m away Householder
  • 26/1511/FUL Awaiting decision

    Eastwood 76 Hendon Lane London N3 1SL

    Removal of rear chimney and addition of Automatic Opening Vent to rear roof Proposals related to Approved Application 24/3716/FUL - Approved 20th September 2024 . Works to this property, under Application 24/3716/FUL commenced Feb 2026.

    22 Apr 2026 276m away Full applications

In Barnet

  • 26/2836/192 Awaiting decision

    20 Derwent Avenue Barnet EN4 8LX

    Roof extension involving rear dormer window with juliette balcony

    31 Jul 2026 Lawful development
  • 26/2815/192 Awaiting decision

    18 Boyne Avenue London NW4 2JN

    Roof extension involving rear dormer window and 2no. front facing rooflights

    30 Jul 2026 Lawful development
  • 26/2824/192 Awaiting decision

    41 Greenway Close London N20 8ES

    Erection of a rear outbuilding

    30 Jul 2026 Lawful development
  • 26/2809/192 Awaiting decision

    43A Clifford Road Barnet EN5 5PD

    Single storey rear extension following the demolition of existing canopy

    29 Jul 2026 Lawful development
  • 26/2806/192 Awaiting decision

    14 Lincoln Road London N2 9DL

    Roof extension involving 1no. rear dormer window over main roof with juliette balcony and 1no. rear dormer over outrigger roof and 3no. front facing rooflights. Alterations to existing lean-to to form rear extension with flat roof with parapet walls and 1no. skylight. Alterations to fenestration and doors

    29 Jul 2026 Lawful development