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Planning application

PL/25/5974/SA

133 Desborough Avenue High Wycombe Buckinghamshire HP11 2SG

Granted Buckinghamshire Certificate of Lawful Use - Proposed

Proposal

Certificate of Lawfulness for Proposed change of use from C3 dwelinghouse to C4 HMO, Addition of dormer and rear and side extensions

As published by the council, reference PL/25/5974/SA

Timeline

Dates from the published record

  1. 27 Nov 2025

    Received by Buckinghamshire

  2. 20 Jan 2026

    Decision issued: Cert of Law PROPOSED-granted

  3. 27 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

  • PL/26/00431/FA Awaiting decision

    Bermonde Colville Road High Wycombe Buckinghamshire HP11 2SX

    Demolition of existing garage and rear conservatory and construction of two storey side extension, single storey rear extension and single storey front extension including raising of walls and roof to form two storey property. New 1.8 metre high timber fence adjacent to north and eastern boundaries. New dropped kerb with vehicular access.

    20 Jan 2026 189m away Full applications
  • PL/26/00530/SA Awaiting decision

    10 Green Street High Wycombe Buckinghamshire HP11 2RA

    Certificate of lawfulness for the proposed change of use of a dwelling for supported accommodation

    22 Jan 2026 284m away Lawful development
  • PL/25/5282/FA Awaiting decision

    252 and 254 Desborough Road High Wycombe Buckinghamshire HP11 2QR

    Front and side mansard roof extensions, internal and external alterations, conversion of loft to extend 2 existing flats and create 1 x 1 bed additional flat, erection of bin and cycle stores

    5 Jan 2026 290m away Full applications
  • PL/25/5540/VRC Granted

    187 Desborough Avenue High Wycombe Buckinghamshire HP11 2ST

    Variation of condition 1 (Approved plans) attached to planning permission 23/06593/FUL (Householder application for construction of part single, part two storey rear extension, hip to gable loft conversion with rear dormer and 2 x front rooflights. Re-location of retaining wall to rear (part retrospective) to allow for extension of the existing bedroom

    12 Nov 2025 331m away Conditions
  • Berber Business Centre Kitchener Road High Wycombe Buckinghamshire

    Prior Notification under Class MA of Part 3, Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015 for change of use from commercial, business and service (Use Class E) 8 x self-contained flats with associated parking, bicycle and bin stores

    23 Dec 2025 368m away
  • PL/26/00177/FA Awaiting decision

    Footpath Outside 2 Newlands Meadow Eden High Wycombe Buckinghamshire

    Installation of 1No. BT Street Hub Unit and associated advertisement panels on either side of the unit

    9 Jan 2026 415m away Full applications

In Buckinghamshire

  • PL/26/00072/SA Granted

    20 Park Meadow Princes Risborough Buckinghamshire HP27 0EB

    Certificate of Lawfulness for proposed extension to vehicle access

    6 Jan 2026 Lawful development
  • PL/26/00257/SA Granted

    4 Ely Close Amersham Buckinghamshire HP7 9HS

    Certificate of Lawfulness propsed to amend the approved application PL/25/0091/SA for 4 Ely Close, Amersham. This is to request planning application for a ground floor bathroom. The proposal is extending the the side room to an overall depth of 270cm to allow for an WC.

    13 Jan 2026 Lawful development
  • PL/26/00262/SA Granted

    84 Webster Road Aylesbury Buckinghamshire HP21 7FL

    Certificate of lawfulness for proposed loft conversion

    13 Jan 2026 Lawful development
  • PL/26/00385/SA Granted

    95 Walton Road Aylesbury Buckinghamshire HP21 7RU

    Certificate of Lawfulness for proposed loft conversion

    14 Jan 2026 Lawful development
  • PL/26/00268/SA Granted

    35 Post Meadow Iver Heath Buckinghamshire SL0 0DU

    Certficate of lawfulness for the proposed loft conversion, rendering of external elevations, alteration of external windows and doors, bedroom enlargement, garage conversion and flue installation.

    14 Jan 2026 Lawful development