91 Powder Mill Lane Twickenham TW2 6EF

1. 3 Oct 2025

   Received by Richmond upon Thames

2. 8 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 3 August 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Richmond upon Thames took a median of 46 days over the applications it decided in the last year.

This application is with Richmond upon Thames for determination, against a statutory target of eight weeks. Over the last year Richmond upon Thames decided lawful development applications in a median of 52 days. More in our guide to how long planning decisions take.

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.

• 62 Waverley Avenue Twickenham TW2 6DW

  PA25/2965 Submitted 28 Aug 2025 37m away

  Erection of a loft conversion / roof extension involving rear dormer, hip to gable extension and insertion of 3 front skylights.

  Granted Prior approval Extension Loft or dormer 10 docs

• 62 Waverley Avenue Twickenham TW2 6DW

  PA25/3076 Submitted 5 Sep 2025 37m away

  Erection of a single storey rear extension to replace the existing conservatory

  Granted Householder Extension 13 docs
  Small domestic

• 66 Waverley Avenue Twickenham Richmond Upon Thames TW2 6DW

  05/0376/HOT Submitted 8 Feb 2005 46m away

  Proposed ground floor rear extension and 2No rear roof dormers.

  Granted Householder Extension Loft or dormer 4 docs
  Domestic

• 68 Waverley Avenue Whitton

  PA25/4334 Submitted 4 Dec 2025 47m away

  Proposed OutBuilding At Rear

  Granted Householder 16 docs
  Small domestic

• 54 Waverley Avenue Twickenham Richmond Upon Thames TW2 6DW

  05/1672/HOT Submitted 31 May 2005 63m away

  Proposed Single Storey Side Extension And Loft Conversion.

  Granted Householder Extension Loft or dormer 5 docs
  Small domestic

• 54 Waverley Avenue Twickenham Richmond Upon Thames TW2 6DW

  05/0491/HOT Submitted 15 Feb 2005 63m away

  Proposed Single Storey Side Extension And Loft Conversion.

  Refused Householder Extension Loft or dormer 8 docs
  Small domestic

• 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
• PA26/2247 Granted

  56, HOSPITAL BRIDGE ROAD, TWICKENHAM, RICHMOND UPON THAMES, TW2 5UJ

  Certificate of lawful development (existing) for hip-to-gable and rear dormer extensions.

  Received 26 Jun, published by the council 26 Jul 2026 Lawful development
• PA26/3082 Awaiting decision

  First Floor Jubilee Court 63A High Street Hampton Wick Kingston Upon Thames KT1 4DG

  Existing use of the premises as an office falling within Use Class E(g)(i).

  Received 4 Sep, published by the council 8 Sep 2026 Lawful development
• PA26/3108 Awaiting decision

  Dial House, Riverside, Twickenham, TW1 3DT

  Use of the building as one single family dwellinghouse

  Received 4 Sep, published by the council 15 Sep 2026 Lawful development
• PA26/3023 Awaiting decision

  73 Winchester Road Twickenham TW1 1LE

  Installed Air Source Heat Pump (Retrospective).

  Received 1 Sep, published by the council 12 Sep 2026 Lawful development