12 Grove Place Hartspring Lane Watford Hertfordshire WD25 8AH

1. 29 Dec 2022

   Received by Hertsmere

2. 15 Feb 2023

   Decision issued: Grant Lawful Certificate (Proposed Dev)

3. 9 Aug 2026

   Added to PlanIndex

Hertsmere granted permission on 15 February 2023, 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.

• 5 Grove Place Hartspring Lane Watford Hertfordshire WD25 8AH

  19/1769/HSE Submitted 4 Nov 2019 100 yards away

  Conversion of garage to habitable room and new front porch.

  Granted Householder Extension 12 docs
  Small domestic

• Hazetta House Hartspring Lane Watford WD25 8AD

  DOC/12/1860 Submitted 3 Sep 2012 150 yards away

  Application for approval of details reserved by condition 4 of planning permission reference TP/12/0208.

  Granted Conditions

• Hartspring House Berry Grove Lane Watford Hertfordshire WD25 8AE

  22/1968/HSE Submitted 24 Nov 2022 200 yards away

  Demolition of existing garage and conservatory, construction of a single storey front and side extension and alterations to fenestration.

  Granted Householder Extension Demolition +1 14 docs
  Small domestic

• Willow Tree Cottage Hartspring Lane Watford Hertfordshire WD25 8AD

  22/1916/DOC Submitted 15 Nov 2022 250 yards away

  Application for approval of details reserved by condition 4 (external materials) of planning permission reference 18/1409/FUL and appeal reference APP/N1920/W/18/3216672.

  Granted Conditions 8 docs

• 10 Hilfield Lane Aldenham Watford Hertfordshire WD25 8AJ

  26/1161/PD42 Submitted 13 Aug 2026 250 yards away

  Single-storey rear extension. Depth: 8.00m, Height: 3.437m, Eaves: 3.00m (as amended by plans received on 08.09.2026).

  Decided Extension 7 docs
  Small domestic

• Hilton National Hotel Elton Way Watford Hertfordshire WD25 8HA

  26/1237/ADV Submitted 26 Aug 2026 250 yards away

  Installation of 3x high level internally illumined individual letters 'Hilton' sign and 1x internally illuminated replacement panel to existing totem sign (Application for advertisement consent).

  Decided Advertising 5 docs

• 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
• 26/1494/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
• 26/1247/CLP Decided

  314 Mutton Lane Potters Bar Hertfordshire EN6 2AX

  Conversion of loft to habitable space including hip to gable roof alterations, rear dormer and 2x front roof lights. Certificate of lawful development (Proposed).

  Received 27 Aug, published by the council 4 Sep 2026 Lawful development