18 Kemprow Aldenham Watford Hertfordshire WD25 8BP

This site has had 2 applications since 2026.

• 26/1077/HSE Awaiting decision

  18 Kemprow Aldenham Watford Hertfordshire WD25 8BP

  Single story rear extension, erection of a new porch, new raised roof incorporating conversion of loft to habitable space with front dormer and 5x roof lights,and associated external works.

  Submitted 31 Jul 2026 Householder

1. 22 Jun 2026

   Received by Hertsmere

2. 24 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 17 August 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hertsmere took a median of 58 days over the applications it decided in the last year.

This application is with Hertsmere for determination, against a statutory target of eight weeks. Over the last year Hertsmere decided lawful development applications in a median of 55 days. More in our guide to how long planning decisions take.

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.

• 18 Kemprow Aldenham Watford Hertfordshire WD25 8BP

  26/1077/HSE Submitted 31 Jul 2026 0m away

  91% historically approved · decision due ~25 Sep

  Single story rear extension, erection of a new porch, new raised roof incorporating conversion of loft to habitable space with front dormer and 5x roof lights,and associated external works.

  Awaiting decision Householder Extension Loft or dormer 13 docs
  Small domestic

• High Cross Garage High Cross Aldenham Watford Hertfordshire WD25 8BN

  21/0846/FUL Submitted 19 Apr 2021 68m away

  Demolition of commercial workshop premises and construction of a new detached 4-bed dwellinghouse with habitable accommodation in the roof space, to include formation of new driveway, front gardens and rear amenity space (revised application to 21/0315/FUL).

  Granted Full applications Demolition 20 docs
  Domestic

• High Point Kemprow Aldenham Watford WD25 8BP

  TP/11/1624 Submitted 23 Aug 2011 93m away

  Erection of single storey kitchen extension; Single storey extension to sitting room with external terrace; New doors, new and replacement windows and construction of Juliet balustrade; Loft conversion and extensions to include insertion of a rooflight to principal elevation; Installation of a swimming pool with bridge over; Single storey arbor enclosure; New South elevation chimney; Demolition of existing flue in brick chimney; Extension of existing soil vent pipe; Ground source heat pump boreholes and insertion of 8 no. solar panels on South West roof of existing garage (Certificate of Lawful Development - Proposed).

  Refused Lawful development Extension Loft or dormer +2 20 docs
  Small domestic

• 26/0981/CLE Decided

  4 Honeywood Close Potters Bar Hertfordshire EN6 5QE

  Existing use as an HMO (Class C4). Certificate of Lawful Development (Existing).

  16 Jul 2026 Lawful development
• 26/1014/CLP Decided

  24 Mount Grace Road Potters Bar Hertfordshire EN6 1RD

  Construction of a single-storey outbuilding within the rear garden. Certificate of Lawful Development (Proposed).

  22 Jul 2026 Lawful development
• 26/1015/CLP Decided

  24 Mount Grace Road Potters Bar Hertfordshire EN6 1RD

  Construction of a single-storey BBQ within the garden. Certificate of Lawful Development (Proposed).

  22 Jul 2026 Lawful development
• 26/1021/CLP Decided

  57 Aberdale Gardens Potters Bar Hertfordshire EN6 2JN

  Conversion of loft to habitable space to include hip to gable roof alterations, rear dormer and 3x front rooflights. Certificate of Lawful Development (Proposed).

  22 Jul 2026 Lawful development
• 26/0996/CLE Decided

  8 Melrose Avenue Potters Bar Hertfordshire EN6 1SZ

  Existing use as a HMO (Class C4). Certificate of Lawful Development (Existing).

  20 Jul 2026 Lawful development