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

• 49 Windsor Avenue New Malden KT3 5HE

  25/01297/PAEXTF Submitted 14 May 2025 50 yards away

  Erection of single storey rear extension (Maximum 4.05m in depth, maximum height of 3.0m and eaves height of 2.70m)

  Refused Householder Extension 10 docs
  Small domestic

• 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

• 26/01541/CPU Granted

  81 Manor Drive North New Malden KT3 5PA

  Conversion of garage into a habitable space and all associated works.

  Received 14 Jul, 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
• 26/00979/CPU Granted

  4 Manston Grove Kingston Upon Thames KT2 5GF

  Erection of a single storey rear extension.

  Received 8 May, published by the council 12 Aug 2026 Lawful development
• 26/00883/CPU Refused

  3 Juniper Close Chessington KT9 2AX

  Conversion of garage to habitable room with changes to front fenestration

  Received 24 Apr, published by the council 26 Jul 2026 Lawful development
• 26/00489/CPU Granted

  40 Hollybush Road Kingston Upon Thames KT2 5SE

  Erection of a single storey front porch.

  Received 6 Mar, published by the council 26 Jul 2026 Lawful development