21 Holly Drive Potters Bar Hertfordshire EN6 2QL

This site has had 4 applications since 2026: 1 approved, 2 refused.

• 26/0508/PD42 Refused

  21 Holly Drive Potters Bar Hertfordshire EN6 2QL

  Single storey rear extension. Depth: 5.0m, Height: 3.0m, Eaves: 3.0m.

  Decided 26 May 2026 Prior approval
• 26/0453/PD42 Refused

  21 Holly Drive Potters Bar Hertfordshire EN6 2QL

  Single storey rear extension. Depth: 6.00m, Height: 3.00m, Eaves: 3.00m.

  Decided 14 May 2026 Prior approval
• 26/0454/PD42 Granted

  21 Holly Drive Potters Bar Hertfordshire EN6 2QL

  Single storey rear extension. Depth: 6.00m. Height: 3.00m, Eaves: 3.00m.

  Decided 14 May 2026 Prior approval

1. 26 May 2026

   Received by Hertsmere

2. 14 Jul 2026

   Decision issued

3. 24 Jul 2026

   Added to PlanIndex

Hertsmere has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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.

• 7 Holly Drive Potters Bar Hertfordshire EN6 2QL

  23/0155/HSE Submitted 30 Jan 2023 50 yards away

  Erection of front porch. (Retrospective application)

  Refused Householder Extension 9 docs
  Small domestic

• 7 Holly Drive Potters Bar Hertfordshire EN6 2QL

  23/0097/HSE Submitted 19 Jan 2023 50 yards away

  Outbuilding in rear garden. (Retrospective application)

  Granted Householder 8 docs
  Small domestic

• 28 Mutton Lane Potters Bar Hertfordshire EN6 2PA

  26/1090/CLE Submitted 3 Aug 2026 50 yards away

  Conversion of house to 5x bed HMO (Class C4). Certificate of lawful development (Existing).

  Granted Lawful development 7 docs

• 21 Holly Drive Potters Bar Hertfordshire EN6 2QL

  26/0508/PD42 Submitted 14 Apr 2026 50 yards away

  Single storey rear extension. Depth: 5.0m, Height: 3.0m, Eaves: 3.0m.

  Refused Prior approval Extension 5 docs
  Small domestic

• 21 Holly Drive Potters Bar Hertfordshire EN6 2QL

  26/0453/PD42 Submitted 7 Apr 2026 50 yards away

  Single storey rear extension. Depth: 6.00m, Height: 3.00m, Eaves: 3.00m.

  Refused Prior approval Extension 6 docs
  Small domestic

• 21 Holly Drive Potters Bar Hertfordshire EN6 2QL

  26/0454/PD42 Submitted 7 Apr 2026 50 yards away

  Single storey rear extension. Depth: 6.00m. Height: 3.00m, Eaves: 3.00m.

  Granted Prior approval Extension 6 docs
  Small domestic

• 26/1315/CLP Granted

  52 Carrington Avenue Borehamwood Hertfordshire WD6 2HA

  Replacement rear dormer and alterations to front roof lights. Certificate of lawful development (Proposed).

  Received 10 Sep, published by the council 19 Sep 2026 Lawful development
• 26/1220/CLP Decided

  The Farm House The Green Letchmore Heath Watford Hertfordshire WD25 8ES

  Removal of approximately 1.4m of private garden hedge and installation of an inward-opening pedestrian gate and posts, with a maximum overall height of 1.0 metre above existing ground level, wholly within the property boundary. Certificate of Lawful Development (Proposed).

  Received 24 Aug, published by the council 28 Aug 2026 Lawful development
• 26/1300/CLP Granted

  111 Church Road Potters Bar Hertfordshire EN6 1EY

  Conversion of loft to habitable space to include rear dormer, 3x front rooflights and removal of chimney stack. Certificate of Lawful Development (Proposed).

  Received 7 Sep, published by the council 14 Sep 2026 Lawful development
• 26/1573/CLP Awaiting decision

  49 Warenford Way Borehamwood Hertfordshire WD6 5ER

  Construction of single storey outbuilding Certificate of Lawful Development (Proposed).

  Received 29 Oct, published by the council 6 Nov 2026 Lawful development
• 26/1276/CLE Granted

  81 Barton Way Borehamwood Hertfordshire WD6 1PQ

  Retention of existing use of an outbuilding as a self-contained dwellinghouse. Certificate of Lawful Development (Existing).

  Received 3 Sep, published by the council 9 Sep 2026 Lawful development