PL/26/00288/SA

1. 14 Jan 2026

   Received by Buckinghamshire

2. 2 Apr 2026

   Decision issued: Cert of Law PROPOSED-granted

3. 27 Jul 2026

   Added to PlanIndex

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.

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

• PL/25/6286/SA Granted

  17 Ashley Drive Tylers Green Buckinghamshire HP10 8BQ

  Certificate of Lawfulness for Proposed hipped roof changed to gable end and rear hipped roof dormer, front ground floor porch

  10 Dec 2025 49m away Lawful development
• PL/26/05485/FA Awaiting decision

  4 The Chase Tylers Green Buckinghamshire HP10 8BA

  Part single, part two storey rear extension to create a wider kitchen/dining area and to add an extra bedroom.

  21 Jul 2026 408m away Full applications
• PL/26/05626/FA Awaiting decision

  8 Fern Walk Hazlemere Buckinghamshire HP15 7RQ

  Single storey front extension added onto existing porch

  14 Jul 2026 459m away Full applications
• PL/26/00386/FA Awaiting decision

  64 Ashley Drive Tylers Green Buckinghamshire HP10 8AZ

  Single storey rear extension and amendments to existing fenestration

  19 Jan 2026 464m away Full applications
• PL/25/5245/FA Granted

  Horseshoe Cottage 185 Penn Road Hazlemere Buckinghamshire HP15 7NE

  Proposed front extension to garage

  4 Nov 2025 467m away Full applications
• PL/26/00298/FA Awaiting decision

  24 Cherry Tree Way Tylers Green Buckinghamshire HP10 8DQ

  Front porch. Part single and part two storey side/rear extension. Single storey rear extension

  15 Jan 2026 468m away Full applications

• 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
• PL/26/05740/SA Awaiting decision

  St Martins Grimms Hill Great Missenden Buckinghamshire HP16 9BG

  Certificate of lawfulness for proposed installation of solar panels on rear roof face.

  17 Jul 2026 Lawful development
• PL/26/05697/SA Awaiting decision

  Esterllita Green End Road Radnage Buckinghamshire HP14 4BY

  Certificate of lawfulness for proposed 2 x detached buildings to provide a home office, games room, gym, garden store & associated W.C facilities

  16 Jul 2026 Lawful development
• PL/26/05233/EU Awaiting decision

  15 Criss Grove Chalfont St Peter Buckinghamshire SL9 9HG

  Certificate of lawfulness for existing erection of a rear dormer roof extension to facilitate a loft conversion

  16 Jul 2026 Lawful development