Sundown Tilehouse Lane Denham Buckinghamshire UB9 5DA

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

Buckinghamshire granted permission on 6 March 2026, 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.

• Glebe Cottage Tilehouse Lane Denham Buckinghamshire UB9 5DA

  PL/26/02645/FA Submitted 31 Mar 2026 100 yards away

  Demolition of existing extension and erection of a new self-build dwelling, alterations to access and associated works

  Granted Full applications New dwelling Extension +1 13 docs
  Domestic

• Denham Green Nursery North Orbital Road Denham Green Buckinghamshire UB9 5EY

  PL/26/00620/FA Submitted 12 Mar 2026 200 yards away

  Erection of two new commercial buildings with ancillary office space and associated vehicle parking

  Granted Full applications 23 docs

• 3 Penn Drive Denham Green Buckinghamshire UB9 5JW

  PL/26/06648/FA Submitted 18 Aug 2026 350 yards away

  85% historically approved · decision due ~13 Oct

  Single storey rear and side extension, loft conversion with rear dormer and front dormer windows. Addition of front porch. Changes to fenestration.

  Awaiting decision Extension Loft or dormer +1 4 docs
  Small domestic

• Sewage Treatment Works Denham Avenue Denham Buckinghamshire

  PL/25/6815/TELN Submitted 17 Dec 2025 400 yards away

  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

  Decided Telecoms 5 docs

• 147 Tilehouse Way Denham Green Buckinghamshire UB9 5JD

  PL/26/00026/FA Submitted 5 Jan 2026 400 yards away

  Single storey rear extension and roof alterations and dormer

  Granted Full applications Extension Loft or dormer +1 4 docs
  Small domestic

• 147 Tilehouse Way Denham Green Buckinghamshire UB9 5JD

  PL/25/3110/VRC Submitted 22 Aug 2025 400 yards away

  Variation of condition 3 (approved plans) of planning permission ref: PL/25/0686/FA (Single storey rear extension) to allow for amendment to approved roof design incorporating hip-to-gable roof extension to main roof and side dormers.

  Withdrawn Conditions Extension Loft or dormer 2 docs
  Small domestic

• 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