PL/25/6398/SA

1. 9 Jan 2026

   Received by Buckinghamshire

2. 6 Mar 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/25/6815/TELN Decided

  Sewage Treatment Works Denham Avenue Denham Buckinghamshire

  Notification under Regulation 5 of the electronic communications code (conditions and restrictions) Regulations 2003 (as amended) for Removal of existing 3no antennas to be replaced with proposed 3no antennas mounted on existing brackets and Ancillary development thereto to include the removal of existing 18no ERS units to be replaced with proposed 9no ERS units on existing rails mounted to existing tower legs

  17 Dec 2025 351m away Telecoms
• PL/26/00026/FA Granted

  147 Tilehouse Way Denham Green Buckinghamshire UB9 5JD

  Single storey rear extension and roof alterations and dormer

  5 Jan 2026 357m away Full applications
• PL/26/00024/FA Granted

  Land South East Of Old Rectory Lane Higher Denham Buckinghamshire UB9 5AH

  Construction of an agricultural building (retrospective).

  17 Feb 2026 361m away Full applications
• PL/26/05051/FA Awaiting decision

  6 Bowyer Crescent Denham Buckinghamshire UB9 5JE

  Erection of a part ground-floor rear extension and part first-floor rear extension

  6 Jul 2026 451m away Full applications
• PL/26/05199/FA Awaiting decision

  20 Nightingale Way Denham Green Buckinghamshire UB9 5JJ

  Garage conversion to habitable accommodation ancillary to main house

  25 Jun 2026 481m away Full applications
• PL/25/06525/EU Granted

  9 Denham Green Close Denham Buckinghamshire UB9 5NA

  Certificate of lawfulness to confirm the commencement of development of planning permission 16/01781/FUL (Two storey side extension and part two storey/part single storey rear extension)

  13 Feb 2026 490m away 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/26/01721/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