7 Haydon Road Watford WD19 4DE

1. 17 Mar 2026

   Received by Hertsmere

2. 25 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 19 May 2026

   Decision issued: Grant Lawful Certificate (Proposed Dev)

4. 9 Aug 2026

   Added to PlanIndex

Hertsmere granted permission on 19 May 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.

• 9 Haydon Road Watford WD19 4DE

  23/0337/DOC Submitted 27 Feb 2023 50 yards away

  Application for approval of details reserved by condition 2 (external materials) of planning permission reference 22/1224/HSE.

  Granted Conditions 4 docs

• 13 Haydon Road Watford WD19 4DE

  21/0936/PD42 Submitted 28 Apr 2021 50 yards away

  Construction of single storey rear extension. Depth 4m, Height 3.9m, Eaves 3m

  Withdrawn Prior approval Extension 9 docs
  Small domestic

• 13 Haydon Road Watford WD19 4DE

  21/1183/PD42 Submitted 4 Jun 2021 50 yards away

  Construction of single storey rear extension. Depth 4m, Height 3.9m, Eaves 3m.

  Granted Prior approval Extension 10 docs
  Small domestic

• 13 Haydon Road Watford WD19 4DE

  23/0367/CLP Submitted 7 Mar 2023 50 yards away

  Conversion of loft to form habitable space including rear dormer and 3 rooflights to front. Certificate of Lawful Development (Proposed).

  Granted Lawful development Loft or dormer 6 docs

• Land Adjacent To 1 - 7 Brick Kiln Close Watford Hertfordshire

  23/0970/FUL Submitted 4 Jul 2023 50 yards away

  Construction of a block of 6 x terraced, 3-bed residential dwellings with accommodation in the roof space, basement level car parking and associated landscaping (revised application) (amended flood risk assessment received on 12/01/2024, amended and additional plans received on 12/07/2024, amended plans on 19/08/2024 and amended plan received on 24/10/2024).

  Granted Full applications 73 docs

• 18 Haydon Road Watford Hertfordshire WD19 4DD

  23/00657/LDC Submitted 28 Jul 2023 50 yards away

  Lawful Development Certificate for the demolition of existing front and rear roof dormers, proposed new rear roof dormer and two roof lights to front roof slope and proposed single storey rear extensions.

  Granted Lawful development Extension Loft or dormer +1 6 docs
  Small domestic

• 26/1156/CLP Decided

  30 Ladbrooke Drive Potters Bar Hertfordshire EN6 1QR

  Single storey rear extension. Conversion of loft to habitable space with hip-to-gable roof alterations to include rear dormer. Certificate of Lawful Development (Proposed).

  Received 12 Aug, published by the council 25 Aug 2026 Lawful development
• 26/1507/CLP Awaiting decision

  30 Ladbrooke Drive Potters Bar Hertfordshire EN6 1QR

  Single storey rear extension and conversion of loft to habitable space including hip to gable roof alterations, rear dormer, and 4x roof lights. Certificate of lawful development (Proposed).

  Received 19 Oct, published by the council 22 Oct 2026 Lawful development
• 26/1494/CLP Awaiting decision

  32 Billy Lows Lane Potters Bar Hertfordshire EN6 1XN

  Demolition of existing garage and temporary shed to facilitate construction of single storey side extension, conversion of loft to habitable space to include hip to gable roof alterations, rear dormer and 4x front rooflights Certificate of Lawful Development (Proposed).

  Received 16 Oct, published by the council 21 Oct 2026 Lawful development
• 26/1489/CLP Awaiting decision

  6 Minorca Close Bentley Heath Barnet Hertfordshire EN5 4FA

  Erection of detached outbuilding in the rear garden for uses ancillary to the main dwelling. Certificate of Lawful Development (Proposed).

  Received 15 Oct, published by the council 20 Oct 2026 Lawful development
• 26/1258/CLP Granted

  106 Whitehouse Avenue Borehamwood Hertfordshire WD6 1HE

  Construction of single storey rear extension. Certificate of Lawful Development (Proposed).

  Received 1 Sep, published by the council 8 Sep 2026 Lawful development