1 White Swan Mews, Chiswick, London, W4 2AU

This site has had 2 applications since 2024: 1 approved, 1 refused.

• P/2026/1370 Granted

  1 White Swan Mews, Chiswick, London, W4 2AU

  Certificate of lawfulness for the proposed erection of a rear roof extension, single storey rear extension, and first floor rear extension with front roof windows to the house.

  Decided 1 Jul 2026 Lawful development

1. 29 Aug 2024

   Received by Hounslow

2. 26 Sep 2024

   Validated

   Checked as complete and ready for consideration.

3. 19 Nov 2024

   Decision issued: REFUSED

4. 3 Aug 2026

   Added to PlanIndex

Hounslow refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

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.

• 1 White Swan Mews, Chiswick, London, W4 2AU

  P/2026/1370 Submitted 6 May 2026 0m away

  Certificate of lawfulness for the proposed erection of a rear roof extension, single storey rear extension, and first floor rear extension with front roof windows to the house.

  Granted Lawful development Extension Windows or glazing 11 docs
  Small domestic

• Schoolkeepers Cottage,1 Devonshire Street,Chiswick,W4 2AX

  P/2024/2447 Submitted 20 Jul 2024 68m away

  Installation of external wall insulation to all walls

  Granted Full applications 35 docs

• 8 -10 Short Road, Chiswick, London, W4 2QU

  P/2024/3376 Submitted 8 Oct 2024 105m away

  Erection of a mansard roof extension with two front roof windows and a rear roof extension with juliet balony to both properties

  Granted Full applications Extension Loft or dormer +1 12 docs

• 2 Short Road, Chiswick, London, W4 2QU

  P/2024/1457 Submitted 6 May 2024 119m away

  Erection of a rear roof extension with Juliet balcony and two front roof windows with raising of ridge height

  Granted Householder Extension Roofing +1 12 docs
  Domestic

• St Marys Rc Primary School Duke Road, Chiswick, London, W4 2DF

  P/2026/2166 Submitted 24 Jul 2026 121m away

  66% historically approved · decision due ~18 Sep

  Part retrospective application for pedestrian entrance gates and proposed installation of replacement vehicle access gates to the school site.

  Awaiting decision Full applications 11 docs

• Cetas Otomotiv, Hogarth Roundabout, Chiswick, W4 2TH

  P/2024/4301 Submitted 18 Dec 2024 127m away

  Installation of an internally illuminated roof sign, internally illuminated totem sign and non illuminated car park sign.

  Granted Advertising 4 docs

• P/2026/2623 Awaiting decision

  8 Lonsdale Road,Chiswick,W4 1ND

  Installation of external condenser at first floor level.

  Received 15 Sep, published by the council 17 Sep 2026 Householder
• P/2026/2125 Granted

  36 Midsummer Avenue, Hounslow, TW4 5BB

  Erection of a single storey rear extension and a single storey side extension following the demolition of the existing side garage.

  Received 21 Jul, published by the council 30 Jul 2026 Householder
• P/2026/2615 Awaiting decision

  48 Meadow Waye, Hounslow, TW5 9EZ

  Erection of a part first floor rear extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder
• P/2026/2619 Awaiting decision

  12 Letchworth Avenue, Feltham, TW14 9RY

  Erection of a single storey rear extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder
• P/2026/2600 Awaiting decision

  310 Lionel Road North, Brentford, TW8 9QX

  Erection of a rear roof extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder