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Planning application

79 Coningsby Road High Wycombe Buckinghamshire HP13 5NZ

Granted Buckinghamshire PL/25/3963/SA Certificate of Lawful Use - Proposed

Works: Extension Loft or dormer

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

Proposal

Certificate of Lawfulness for proposed roof dormer extension

As published by the council, reference PL/25/3963/SA

Application record

Reference
PL/25/3963/SA
Type
Certificate of Lawful Use - Proposed
Status
Decided
Decision
Cert of Law PROPOSED-granted
Received
23 Sep 2025
Validated
23 Sep 2025
Decided
19 Nov 2025
Ward
Terriers and Amersham Hill
Parish
High Wycombe Unparished Area
Decision by
Delegated Decision
Postcode
HP13 5NZ

Timeline

Dates from the published record

  1. 23 Sep 2025

    Received by Buckinghamshire

  2. 19 Nov 2025

    Decision issued: Cert of Law PROPOSED-granted

  3. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, a design practice registered in Aylesbury

20 applications on PlanIndex · across 3 councils · 92% granted

Trade members see who it is, their full track record, and every application they have filed.

See who's behind it

Documents

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

6 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

  • 79 Coningsby Road High Wycombe Buckinghamshire HP13 5NZ

    PL/26/00657/FA Submitted 27 Jan 2026 0m away

    Demolition of existing conservatory and erection of single storey side and rear extensions

    Granted Full applications Extension Demolition 9 docs
    Small domestic

  • 216 Hughenden Road High Wycombe Buckinghamshire HP13 5PD

    PL/26/06129/SA Submitted 30 Jul 2026 58m away

    80% historically approved · decision due ~24 Sep

    Certificate of lawfulness for proposed change of use of C3 residential dwelling to C4 house of multiple occupancy (HMO) under Class L(b) and loft conversion with addition of dormer under Class B.

    Awaiting decision Loft or dormer
    Domestic

  • 59 Coningsby Road High Wycombe Buckinghamshire HP13 5NY

    PL/26/05135/SA Submitted 23 Jun 2026 88m away

    80% historically approved · decision due ~18 Aug

    Certificate of Lawfulness for proposed change of use of C3 residential dwelling to C4 house of multiple occupancy (HMO) under Class L(b) and loft conversion with addition of dormer under Class B

    Awaiting decision Loft or dormer
    Domestic

  • 59 Coningsby Road High Wycombe Buckinghamshire HP13 5NY

    PL/26/05136/SA Submitted 23 Jun 2026 88m away

    80% historically approved · decision due ~18 Aug

    Certificate of lawfulness for proposed single storey rear extension

    Awaiting decision Extension
    Small domestic

  • 205 Hughenden Road High Wycombe Buckinghamshire HP13 5PL

    PL/26/05987/PNE Submitted 27 Jul 2026 98m away

    80% historically approved · decision due ~21 Sep

    Notification under The Town and Country Planning (General Permitted Development) Order 2015, Part 1 of Schedule 2 Class A for: single storey rear extension (depth extending from the original rear wall of 6.00 metres, maximum height 3.00 metres, eaves height 3.00 metres).

    Awaiting decision Extension
    Small domestic

  • 186 Hughenden Road High Wycombe Buckinghamshire HP13 5PD

    PL/25/6055/SA Submitted 1 Dec 2025 108m away

    Certificate of Lawfulness for Proposed C4 HMO for up to 6-occupants, Addition of dormer to rear of the property

    Granted Lawful development Loft or dormer 10 docs

In Buckinghamshire

  • PL/26/05794/SA Awaiting decision

    62 Cubb Field Aylesbury Buckinghamshire HP19 7SH

    Certificate of lawfulness for proposed dropped kerb

    10 Aug 2026 Lawful development
  • PL/26/01164/SA Refused

    64 Sandholme Steeple Claydon Buckinghamshire MK18 2QE

    Certificate of lawfulness for proposed dropped kerb.

    12 Feb 2026 Lawful development
  • PL/26/01589/SA Refused

    3 Corn Mill Close Wing Buckinghamshire LU7 0PL

    Certificate of lawfulness for the proposed single storey rear extension and part garage conversion.

    25 Feb 2026 Lawful development
  • PL/26/05893/SA Awaiting decision

    Stamford House Boston Drive Bourne End Buckinghamshire SL8 5YS

    Certificate of Lawfulness for proposed development to confirm the lawfulness of the construction of first floor rear extension, creating additional open plan offices.

    22 Jul 2026 Lawful development
  • PL/26/01721/SA Granted

    Burton House White Lion Road Little Chalfont Buckinghamshire HP7 9LP

    Certificate of lawfulness for the proposed change of use of building from Existing Office Building (Class E) to Veterinary Practice (Class E).

    2 Mar 2026 Lawful development