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Planning application

38 Tretawn Gardens London NW7 4NR

Decided Barnet 26/2521/HSE Householder

Works: Extension Loft or dormer Windows or glazing Domestic

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

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Roof extension involving triple rear dormer window, 2no. front facing rooflights and new side gable windows

As published by the council, reference 26/2521/HSE

Application record

Reference
26/2521/HSE
Category
Householder
Status
Approved subject to conditions
Received
3 Jul 2026
Validated
8 Jul 2026
Postcode
NW7 4NR

Timeline

Dates from the published record

  1. 3 Jul 2026

    Received by Barnet

  2. 8 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 9 Aug 2026

    Added to PlanIndex

  4. 11 Sep 2026

    Status changed to Approved subject to conditions

    Previously Pending Consideration.

After the decision

Barnet has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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

  • 24 Tretawn Gardens London NW7 4NR

    26/0266/HSE Submitted 23 Jan 2026 50 yards away

    Roof extension involving extended crown roof, raising of the ridge height, side and rear dormer windows and 2no. front facing rooflights

    Granted Householder Extension Loft or dormer +2 16 docs
    Domestic

  • Trees Austell Gardens London NW7 4NS

    26/0839/HSE Submitted 5 Mar 2026 100 yards away

    Erection of a rear outbuilding

    Granted Householder 10 docs
    Small domestic

  • Trees Austell Gardens London NW7 4NS

    26/0840/S73 Submitted 5 Mar 2026 100 yards away

    Variation of Condition 1 (Approved Plans) of planning permission reference 20/4044/FUL dated 03/06/21 for 'Erection of new dwelling on side of house. Associated refuse/recycling area, cycle store and amenity space, provision off street parking.' Variation to include alterations to hard and soft landscaping and vehicle access

    Granted Conditions New dwelling 10 docs
    Domestic

  • Trees Austell Gardens London NW7 4NS

    25/3839/S73 Submitted 18 Sep 2025 100 yards away

    93% historically approved · decision due ~18 Nov

    Variation of condition 1 (Approved Plans) of planning permission reference 20/4044/FUL dated 03/06/21 for 'Erection of new dwelling on side of house. Associated refuse/recycling area, cycle store and amenity space, provision off street parking.' Variation to include: Addition of 1no. north-facing side dormer window; Installation of 1no. additional rooflight to south facing roofslope; Installation of 1no. rooflight to ground floor flat roof; Alterations to north and south fenestration; Internal alterations; Amendments to landscaping proposals

    Awaiting decision Conditions New dwelling Loft or dormer +2 10 docs
    Domestic

  • 44 Tretawn Gardens London NW7 4NR

    25/4420/HSE Submitted 5 Nov 2025 100 yards away

    Single storey rear extension

    Granted Householder Extension 9 docs
    Small domestic

  • 43 Sunnyfield London NW7 4RD

    26/2158/192 Submitted 10 Jun 2026 100 yards away

    Roof extension involving wraparound side and rear dormer window with 1no. front facing and 1no. side facing rooflight sited on existing roof slopes (amended description)

    Refused Lawful development Extension Loft or dormer +1 6 docs

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