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Planning application

9 Cardinal Crescent New Malden KT3 3EF

Granted Kingston upon Thames 25/02794/CPU Cert of Lawful Use/Operation - Proposed

Works: Extension Loft or dormer

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

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

As published by the council, reference 25/02794/CPU

Application record

Reference
25/02794/CPU
Type
Cert of Lawful Use/Operation - Proposed
Status
Granted
Decision
Application Granted
Received
29 Oct 2025
Validated
20 Nov 2025
Decided
6 Jan 2026
Ward
Coombe Vale
Parish
New And Old Malden
Decision by
Delegated Decision
Postcode
KT3 3EF

Timeline

Dates from the published record

  1. 29 Oct 2025

    Received by Kingston upon Thames

  2. 20 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 6 Jan 2026

    Decision issued: Application Granted

  4. 12 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

16 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About lawful development applications

How this application type works

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

Nearby applications

Within 500 metres

  • 9 Cardinal Crescent New Malden KT3 3EF

    25/02812/HOU Submitted 30 Oct 2025 0m away

    Erection of single storey front, rear, first floor side and front porch extension

    Granted Householder Extension 16 docs
    Small domestic

  • 8 Beechcroft Avenue New Malden KT3 3EG

    24/01779/HOU Submitted 17 Jul 2024 49m away

    Erection of single storey rear extension, part ground floor/part first floor side extension and rear dormer roof extension with installation of 2nos. front rooflights to facilitate loft conversion.

    Refused Householder Extension Loft or dormer 11 docs
    Small domestic

  • 8 Beechcroft Avenue New Malden KT3 3EG

    26/01081/NMA Submitted 21 May 2026 49m away

    Application for a Non Material Amendment to planning permission 25/00400/HOU (Part demolition of an existing ground floor of building, erection of single storey rear and first floor side extension.) to increase the deepth of patio area.

    Refused Amendments Extension Demolition 6 docs
    Small domestic

  • 8 Beechcroft Avenue New Malden KT3 3EG

    26/01353/FUL Submitted 23 Jun 2026 63m away

    72% historically approved · decision due ~18 Aug

    Application under Section 73 of the Town and Country Planning Act 1990 to carry out development without compliance with Condition 1 (Approved drawings) for Application Reference Number: 25/00400/HOU (Part demolition of an existing ground floor of building, erection of single storey rear and first floor side extension.) dated 30/04/2025. Variation to increase the depth of patio area from the originally consented 1.0m to 3.6m.

    Decided Full applications Extension Demolition
    Small domestic

  • 28 Beechcroft Avenue New Malden KT3 3EG

    23/01215/HOU Submitted 8 May 2023 65m away

    Demolition of existing garage, erection of part two storey/part single storey side and rear, single storey front extension. Hip to gable roof extension with rear dormer and installation of 1no front rooflight. Internal alteration.

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

  • 12 Beechcroft Avenue New Malden KT3 3EG

    21/04039/HOU Submitted 20 Dec 2021 67m away

    Demolition of existing conservatory, erection of single storey rear extension. Conversion of garage into habitable space

    Granted Householder Extension Demolition 12 docs
    Small domestic

In Kingston upon Thames

  • 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