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Planning application

PL/26/01386/SA

93 Mayhew Crescent High Wycombe Buckinghamshire HP13 6DF

Granted Buckinghamshire Certificate of Lawful Use - Proposed

Proposal

CERTIFICATE OF LAWFULNESS FOR PROPOSED CONSTRUCTION OF A REAR BOX DORMER

As published by the council, reference PL/26/01386/SA

Timeline

Dates from the published record

  1. 18 Feb 2026

    Received by Buckinghamshire

  2. 12 Apr 2026

    Decision issued: Cert of Law PROPOSED-granted

  3. 4 Aug 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

  • PL/25/5116/FA Refused

    36 Amersham Hill Drive High Wycombe Buckinghamshire HP13 6QY

    Single storey rear extension, additional stepped access to rear, conversion of existing garage and addition of bay window to match existing to front elevation.

    24 Dec 2025 115m away Full applications
  • PL/25/5657/TELN Decided

    Arnison Avenue Terriers Totteridge High Wycombe Community Board Buckinghamshire HP13 6DB

    Notification under Regulation 5 of the electronic communications code (conditions and restrictions) Regulations 2003 (as amended) to install one 10M light wooden pole and one 10M light hollow pole

    14 Nov 2025 200m away Telecoms
  • Community Hall Arnison Avenue High Wycombe Buckinghamshire

    Application for approval of details subject to condition 2 (Noise Management Plan) of planning approval 24/06341/VCDN

    21 Nov 2025 225m away Conditions
  • PL/26/05221/FA Awaiting decision

    4 Perth Road High Wycombe Buckinghamshire HP13 6XX

    Single storey rear extension, outbuilding within the rear garden & new dropped kerb in association with provision of off street parking

    28 Jul 2026 263m away Full applications
  • PL/26/05177/SA Awaiting decision

    4 Kingston Road High Wycombe Buckinghamshire HP13 6UJ

    Certificate of lawfulness for the proposed removal of existing extension and replacement with a new one

    25 Jun 2026 270m away Lawful development
  • PL/26/00142/KA Decided

    24 Amersham Road High Wycombe Buckinghamshire HP13 6QU

    H1 - Conifer hedge - Trim back as much as possible to leave green following the contour of trees where necessary. Top all conifer hedges to previous reduction points - up to 2 metres, T2 - Laurel - cut back to boundary and top to 10 ft - up to 2 metres, T3 - Plum - Fell to ground level, T4 - Holly - remove top to previous reduction point approximately 1 metre, T5 - Bay - Shorten bent stem to in line with stem leaning towards house by up to 2m, new cut to be hidden by front stem from porch aspect. Stem leaning towards porch to be shortened by 2 metres and T6 - Cherry - Fell to ground level

    8 Jan 2026 272m away Trees

In Buckinghamshire

  • 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/26/01721/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
  • PL/26/05515/SA Awaiting decision

    Dinton Hall Upton Road Dinton Buckinghamshire HP17 8UQ

    Certificate of lawfulness application for proposed crossover field access point.

    21 Jul 2026 Lawful development
  • PL/26/05843/SA Awaiting decision

    Land at Springfield Farm, South Heath, Buckinghamshire

    Certificate of Proposed Lawful Development for the temporary storage of soil stockpiles at Springfield Farm field at South Heath, Buckinghamshire

    21 Jul 2026 Lawful development