23 Cotsford Avenue New Malden KT3 5EU

This site has had 2 applications since 2025: 1 approved, 1 refused.

• 26/00246/CPU Granted

  23 Cotsford Avenue New Malden KT3 5EU

  Erection of rear outbuilding for garden office and storage

  Decided 10 Apr 2026 Lawful development

1. 30 Sep 2025

   Received by Kingston upon Thames

2. 10 Dec 2025

   Decision issued: Refuse

3. 3 Aug 2026

   Added to PlanIndex

Kingston upon Thames 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.

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.

• 23 Cotsford Avenue New Malden KT3 5EU

  26/00246/CPU Submitted 4 Feb 2026 50 yards away

  Erection of rear outbuilding for garden office and storage

  Granted Lawful development 8 docs

• 27 Cotsford Avenue New Malden KT3 5EU

  26/00015/HOU Submitted 6 Jan 2026 50 yards away

  Alterations to rear conservatory with installation of double pitched roof, thermal wall insulation and changes to fenestrations

  Granted Householder Extension 18 docs
  Small domestic

• 27 Cotsford Avenue New Malden KT3 5EU

  24/01819/TPO Submitted 22 Jul 2024 50 yards away

  T1 - Willow Pollard to new points bellow previous ones, the tree has suffered a very large tear out at crown break and now has substantial weight left above wound.

  Decided Trees 2 docs

• 31 Cotsford Avenue New Malden KT3 5EU

  25/01770/PAEXT Submitted 3 Jul 2025 50 yards away

  Erection of single storey rear extension (Maximum 6.0m in depth, maximum height of 3.0m and eaves height of 3.0m)

  Granted Householder Extension 15 docs
  Small domestic

• 11 Cotsford Avenue New Malden KT3 5EU

  24/02162/HOU Submitted 2 Sep 2024 100 yards away

  Demolition of an existing side conservatory, erection of part two storey/part single storey rear and side, single storey front porch extension. Roof alteration with first floor front extension, 1no front dormer and increase in roof height. Installation of 3nos side rooflights.

  Refused Householder Extension Loft or dormer +1 12 docs
  Small domestic

• 11 Cotsford Avenue New Malden KT3 5EU

  22/03912/HOU Submitted 20 Dec 2022 100 yards away

  Erection of single storey rear, front porch and side extension. Erection of roof extension and installation of 2nos front. 2nos rear and 3nos side rooflights to facilitate loft conversion. Relocation of main entrance door.

  Granted Householder Extension Loft or dormer 7 docs
  Small domestic

• 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

  Received 12 May, published by the council 26 Jul 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.

  Received 3 Jul, published by the council 26 Jul 2026 Lawful development
• 26/01695/CPU Awaiting decision

  1 Whitehall Crescent Chessington KT9 1NF

  Lawful Development Certificate for change of use from a 6 person HMO (Use Class C4) to a 7 person HMO (Use Class Sui-Generis)

  Received 31 Jul, published by the council 17 Sep 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.

  Received 23 Apr, published by the council 26 Jul 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.

  Received 20 May, published by the council 26 Jul 2026 Lawful development