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Planning application

CD/TH/26/0561

1 Lonsdale Avenue Margate Kent CT9 3BA

Granted Thanet Certificate of Lawful Devpt - Proposed

Proposal

Certificate of Lawful development for the erection of a rear dormer

As published by the council, reference CD/TH/26/0561

Timeline

Dates from the published record

  1. 25 May 2026

    Received by Thanet

  2. 26 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Decision issued: Grant Certificate

  4. 29 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

  • FH/TH/21/0970 Granted

    9 Wishing Towers 18 Eastern Esplanade MARGATE Kent CT9 3BG

    Erection of third floor rear extension

    17 Jun 2021 161m away Householder
  • FH/TH/23/0006 Granted

    45 Princes Gardens Margate Kent CT9 3AR

    Erection of a part two storey side extension spanning over an existing single storey flat roofed extension, and part single storey extension with roof terrace over.

    3 Jan 2023 193m away Householder
  • TL/TH/23/0062 Granted

    TR24 37080 71370 Adjacent To H M Coastguard Palm Bay Avenue MARGATE Kent CT9 3HF

    Application for prior approval for the erection and installation of 18m AGL telecommunications installation upgrade and associated ancillary works following removal of existing

    13 Jan 2023 244m away Telecoms
  • FH/TH/24/1039 Granted

    55 Cornwall Gardens Margate Kent CT9 2JE

    Erection of a single storey rear extension following demolition of existing together with conversion of outbuilding to habitable room (retrospective)

    3 Sep 2024 259m away Householder
  • F/TH/26/0497 Granted

    43 Norfolk Road Margate Kent CT9 2HU

    Variation of conditions 2 and 3 of planning permission F/TH/25/1273 for 'Replacement of all existing windows with UPVC sash units, together with minor internal reconfiguration of layout and enlargement of existing single storey rear extension including installation of new roof to existing side extension' to allow changes to roof and external materials of rear and side extensions.

    12 May 2026 297m away Full applications
  • FH/TH/23/0142 Granted

    18 Warwick Road MARGATE Kent CT9 2JY

    Erection of a single storey side extension

    29 Jan 2023 302m away Householder

In Thanet

  • CD/TH/26/0254 Refused

    Garden Cottage Preston Road Ramsgate Kent CT12 5AS

    Application for Certificate of Lawful Development for the proposed siting of a twin-unit caravan within the residential curtilage to be used as ancillary accommodation to the main dwelling (creating no separate dwelling and having no separate services)

    11 Mar 2026 Lawful development
  • CD/TH/26/0638 Withdrawn

    Unit 15 - 19 Hedge End Industrial Estate St Nicholas At Wade Birchington Kent CT7 0NB

    Application for a certificate of lawful development to install solar panels to the roof of each unit

    15 Jun 2026 Lawful development
  • CD/TH/26/0710 Awaiting decision

    54 Alpha Road Birchington Kent CT7 9EA

    Application for cerificate of Lawful Development for the proposed erction of single storey side extension

    6 Jul 2026 Lawful development
  • CD/TH/26/0219 Granted

    64 Park Avenue Birchington Kent CT7 0DL

    Application for a certificate of lawful development for the removal of part of kitchen wall to install new window

    3 Mar 2026 Lawful development
  • CD/TH/26/0543 Granted

    22 Epple Bay Road Birchington Kent CT7 9EN

    Application for a certificate of lawful development for the proposed single storey side extension

    21 May 2026 Lawful development