44 Park Avenue, Hounslow TW3 2LX

1. 12 Feb 2026

   Received by Richmond upon Thames

2. 25 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 20 Apr 2026

   Decision issued: Granted Permission

4. 13 Aug 2026

   Added to PlanIndex

Richmond upon Thames granted permission on 20 April 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 31 PARK AVENUE, HOUNSLOW, TW3 2LY

  P/2021/2068 Submitted 24 May 2021 50 yards away

  Certificate of Lawfulness for the erection of a side and rear roof extension to the house

  Granted Lawful development Extension 9 docs

• 51 Park Avenue, Hounslow, TW3 2LY

  P/2026/0058 Submitted 9 Jan 2026 100 yards away

  100% historically approved · decision due ~6 Mar

  Certificate of lawfulness for the existing erection of a rear roof extension with hip to gable conversion and three front roof windows to the house.

  Awaiting decision Lawful development Extension Loft or dormer +1 8 docs

• 51 Park Avenue, Hounslow, TW3 2LY

  P/2024/3835 Submitted 16 Nov 2024 100 yards away

  Erection of a single storey side and rear extension

  Granted Householder Extension 15 docs
  Small domestic

• 28 Park Avenue Hounslow Richmond Upon Thames TW3 2LX

  04/3124/HOT Submitted 28 Sep 2004 100 yards away

  Proposed first floor flank extension.

  Granted Householder Extension 6 docs
  Domestic

• 58 Wills Crescent Whitton Hounslow TW3 2JB

  21/1772/HOT Submitted 17 May 2021 100 yards away

  single storey side and rear extension following removal of existing side garage

  Granted Householder Extension 9 docs
  Small domestic

• 80 ARGYLE AVENUE, HOUNSLOW, TW3 2LN

  PA/2023/0680 Submitted 2 Mar 2023 100 yards away

  Ground floor rear extension 6.00 metres deep, maximum height 2.95 metres, 2.95 metres high to the eaves

  Granted Prior approval Extension 6 docs

• PA26/2952 Granted

  Garages Adjacent 11 Ferrymoor Ham

  Confirmation that relevant works have been carried out to enable the implementation of planning permission 22/1486/FUL for demolition of garage block and redevelopment of the site for two three storey four bed townhouses (Class C3) with associated amenity space, car and cycle parking and refuse stores.

  Received 25 Aug, published by the council 8 Sep 2026 Lawful development
• PA26/2608 Granted

  10 Russell Road Twickenham Middlesex TW2 7QT

  Use of the site and buildings as a Guest House (Use Class C1)

  Received 27 Jul, published by the council 27 Aug 2026 Lawful development
• PA26/3239 Awaiting decision

  HAMPTON COURT HOUSE LTD, Hampton Court House, Hampton Court Road, Hampton, East Molesey, KT8 9BS

  The existing development of 2 single-storey educational buildings located within the western portion of the Site.

  Received 18 Sep, published by the council 30 Sep 2026 Lawful development
• PA26/2430 Granted

  71, Ground Floor Flat, Queens Road, Twickenham, TW1 4EZ

  Use of 'ground floor unit' as a 3 x bed C3 flat.

  Received 10 Jul, published by the council 26 Jul 2026 Lawful development
• PA26/3087 Awaiting decision

  Ground floor 100 Church Road Teddington TW11 8QE

  Use of the Ground floor of 100 Church Road Teddington, TW11 8QE as Open Class E Use

  Received 7 Sep, published by the council 9 Oct 2026 Lawful development