45 Siddington Drive Aylesbury Buckinghamshire HP18 0UE

1. 22 Aug 2025

   Received by Buckinghamshire

2. 17 Oct 2025

   Decision issued: Cert of Law PROPOSED-granted

3. 12 Aug 2026

   Added to PlanIndex

Buckinghamshire granted permission on 17 October 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 59 Siddington Drive Aylesbury Buckinghamshire HP18 0UE

  PL/26/00309/SA Submitted 15 Jan 2026 100 yards away

  Certificate of lawfulness for proposed loft conversion

  Granted Lawful development Loft or dormer 6 docs

• Parcel EMP 03 Nimrod Street Berryfields Mda Bucks HP18 0WS

  PL/25/3510/CONDA Submitted 5 Sep 2025 300 yards away

  Application for approval of details subject to condition 5 (materials), Condition 9 (Slab Levels), Condition 13 (Construction Traffic Management Plan), condition 18 (Foul Water Drainage scheme) and condition 20 (Surface Water Drainage Scheme) of planning approval ref:21/00485/AOP

  Decided Conditions 53 docs

• Parcel EMP 03 Nimrod Street Berryfields Mda Bucks HP18 0WS

  PL/25/4643/CONDA Submitted 15 Oct 2025 300 yards away

  Application for approval of details subject to condition 6 (biodiversity), condition 7 (landscape and ecology) and condition 12 (noise report) of planning approval 21/00485/AOP

  Decided Conditions 4 docs

• Parcel EMP03 Nimrod Street Berryfields MDA Aylesbury Buckinghamshire HP18 0WS

  PL/26/01803/CONDA Submitted 4 Mar 2026 400 yards away

  Application for approval of details subject to condition 23 (travel plan) of planning approval 21/00485/AOP

  Decided Conditions 4 docs

• 4 Mirabelle Close Aylesbury Buckinghamshire HP18 0PU

  PL/26/01237/SA Submitted 13 Feb 2026 400 yards away

  Certificate of lawfulness for the proposed rear extension and outbuilding.

  Granted Lawful development Extension 14 docs

• Berryfields Local Centre Concorde Square Aylesbury HP18 0PT

  PL/25/6785/CONDA Submitted 24 Dec 2025 450 yards away

  Application for approval of details subject to condition 3 (planting scheme) of planning approval 25/01481/APP

  Decided Conditions 2 docs

• PL/26/01937/SA Granted

  63 Ingram Avenue Aylesbury Buckinghamshire HP21 9DJ

  Certificate of lawfulness for proposed dropped kerb.

  Received 18 Mar, published by the council 17 Sep 2026 Lawful development
• PL/26/02452/SA Granted

  217A Desborough Avenue High Wycombe Buckinghamshire HP11 2TW

  Certificate of lawfulness for the proposed erection of an outbuilding.

  Received 25 Mar, published by the council 25 Sep 2026 Lawful development
• PL/26/00836/SA Granted

  33 South View Downley Buckinghamshire HP13 5UL

  Certificate of lawfulness for the proposal to create new access at the front of the property.

  Received 2 Feb, published by the council 4 Aug 2026 Lawful development
• PL/26/07553/SA Awaiting decision

  4 Marlborough Road Aylesbury Buckinghamshire HP21 8AU

  Certificate of Lawfulness for proposed new vehicular crossover (dropped kerb) to 4.6m total width including transition kerbs, with associated enlargement of the opening in the front boundary wall, and formation of a permeable hardstanding within the front garden to provide off-street parking for the existing dwellinghouse. Works are engineering/building operations as defined by s55 TCPA 1990. No change of use is proposed; the dwelling remains in Use Class C3. Existing drop kerb reinstated.

  Received 18 Sep, published by the council 3 Oct 2026 Lawful development
• PL/26/07397/EU Awaiting decision

  22 Priory Road High Wycombe Buckinghamshire HP13 6SL

  Certificate of lawfulness for existing use of property as a block of eight self-contained flats, each falling within use class C3.

  Received 14 Sep, published by the council 3 Oct 2026 Lawful development