Red Thorns 98 Westbury Road New Malden KT3 5AN

1. 6 Nov 2025

   Received by Kingston upon Thames

2. 23 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 17 Feb 2026

   Decision issued: Refuse

4. 12 Aug 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

• Red Thorns 98 Westbury Road New Malden KT3 5AN

  22/01947/CPU Submitted 13 Jun 2022 0m away

  78% historically approved · decision due ~8 Aug

  Change of use from C3 (Dwelling) to C2 (Residential Institution)

  Awaiting decision Lawful development 5 docs
  Domestic

• Red Thorns 98 Westbury Road New Malden KT3 5AN

  26/00681/HOU Submitted 31 Mar 2026 0m away

  Single storey rear extension (part retrospective)

  Granted Householder Extension 8 docs
  Small domestic

• Red Thorns 98 Westbury Road New Malden KT3 5AN

  21/03784/CPU Submitted 26 Nov 2021 0m away

  Change of use dwellinghouse (use class C3) to residential institution (use class C2)

  Refused Lawful development 5 docs
  Domestic

• Red Thorns 98 Westbury Road New Malden KT3 5AN

  25/02870/CPU Submitted 6 Nov 2025 0m away

  Erection of rear dormer gable roof extension

  Refused Lawful development Extension Loft or dormer 5 docs

• Red Thorns 98 Westbury Road New Malden KT3 5AN

  26/00073/CPU Submitted 13 Jan 2026 6m away

  Erection of rear dormer gable roof extension with materials to match the appearance of those existing

  Granted Lawful development Extension Loft or dormer 6 docs

• 98A Westbury Road New Malden KT3 5AN

  25/03218/FUL Submitted 15 Dec 2025 13m away

  72% historically approved · decision due ~8 May

  Demolition of single storey annex dwelling attached to no. 98 and erection of detached dwelling

  Awaiting decision Full applications New dwelling Demolition 22 docs
  Small domestic

• 26/01028/CPU Granted

  7 Lynton Close Chessington KT9 1HB

  Conversion of existing attached garage to utility room and WC ancillary to the main dwelling.

  13 May 2026 Lawful development
• 26/01012/CPU Granted

  40 Staunton Road Kingston Upon Thames KT2 5TJ

  Erection of hip to gable roof extension with rear dormer and installation of 2nos front roof lights

  12 May 2026 Lawful development
• 26/01468/CPU Granted

  112 Durlston Road Kingston Upon Thames KT2 5RU

  Erection of rear dormer roof extension and installation of 2nos front rooflights.

  3 Jul 2026 Lawful development
• 26/00870/CPU Refused

  14 Regent Road Surbiton KT5 8NL

  Erection of hip-to-gable and rear dormer roof extension with Juliet balcony and 1no. front rooflight to facilitate loft conversion.

  23 Apr 2026 Lawful development
• 26/01068/CPU Granted

  27 Dawson Road Kingston Upon Thames KT1 3AU

  Erection of single storey rear extension with alteration to side fenestration.

  20 May 2026 Lawful development