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Planning application

25/02782/CPU

30 Ashby Avenue Chessington KT9 2BU

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

Proposal

Erection of hip to gable and rear dormer roof extensions with installation of 2nos. front rooflights to facilitate loft conversion

As published by the council, reference 25/02782/CPU

Timeline

Dates from the published record

  1. 27 Oct 2025

    Received by Kingston upon Thames

  2. 22 Dec 2025

    Decision issued: Application Granted

  3. 26 Jul 2026

    Added to PlanIndex

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

  • 26/00936/HOU Granted

    9 Maltby Road Chessington KT9 2BX

    Demolition of an existing side car port, erection of part two storey/part single storey side, first floor rear extension and internal alterations.

    30 Apr 2026 95m away Householder
  • 20/00688/TPO Decided

    25 Maltby Road Chessington KT9 2BX

    T.1 Twisted Willow - Crown lift to 5m from ground level all round.

    18 Mar 2020 144m away Trees
  • 26/01117/NMA Granted

    11A Gilders Road Chessington KT9 2AD

    Application for a Non-Material Amendment to planning permission 23/01068/HOU (Demolition of outbuilding, erection of two-storey rear infill, single-storey wrap-around and front porch extensions) to regularise minor as-built amendments comprising a flat roof in place of the approved pitched roof and the insertion of a kitchen window.

    27 May 2026 187m away Amendments
  • 26/01484/CLC Awaiting decision

    51 Thrigby Road Chessington KT9 2AH

    Details required for Condition 3 (Material) of planning permission 25/02762/HOU (Erection of side dormer roof extensions and rear roof extension to facilitate loft conversion)

    6 Jul 2026 205m away Conditions
  • 20/00352/CPU Granted

    14 Chessington Hill Park Chessington KT9 2BS

    Erection of hip to gable and rear dormer roof extensions and installation of 2 no. rooflights to front roof slope

    13 Feb 2020 216m away Lawful development
  • 25/02619/CPU Granted

    5 Chessington Hill Park Chessington KT9 2BJ

    Erection of single storey rear extension

    8 Oct 2025 235m away Lawful development

In Kingston upon Thames

  • 26/01186/CPU Granted

    116 Deacon Road Kingston Upon Thames KT2 6LU

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

    4 Jun 2026 Lawful development
  • 26/01097/CPU Granted

    3 Sherwood House Kingston Vale London SW15 3PP

    Use of home for administration of private hire vehicle operating centre

    22 May 2026 Lawful development
  • 26/01085/CPU Granted

    96 Thornhill Road Tolworth KT6 7TH

    Erection of hip to gable rear dormer roof extension, installation of 2no front roof lights and 1 new gable end window.

    21 May 2026 Lawful development
  • 26/01648/CPUF Awaiting decision

    66 Douglas Road Kingston Upon Thames KT1 3PT

    Erection of a single storey detached domestic garden outbuilding

    28 Jul 2026 Lawful development
  • 26/01052/CPU Granted

    5 Burberry Close New Malden KT3 3AR

    Conversion of an existing garage into habitable room with associated alteration to fenestration

    18 May 2026 Lawful development