26/0810/CLE

1. 11 Jun 2026

   Received by Hertsmere

2. 24 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

This application is with Hertsmere for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 26/0395/VOC Awaiting decision

  4 Newberries Avenue Radlett Hertfordshire WD7 7EW

  Variation of condition 2 (openings) to allow for removal of opaque glass window and replacement clear glass window following grant of planning permission TP/09/1253.

  25 Mar 2026 0m away Amendments
• TP/09/1684 Granted

  23 Canons Close Radlett WD7 7ER

  *Electronic documents only, no paper fileErection of a single storey side extension and insertion of side window

  1 Oct 2009 123m away Householder
• TPO/2010/1182 Granted

  Flat 13 Bridge Court Craigmount Radlett Hertfordshire WD7 7LF

  BLACK POPLAR - Fell

  6 Sep 2010 141m away Trees
• 24/1354/CLP Granted

  40 Craigweil Avenue Radlett Hertfordshire WD7 7EY

  Conversion of garage to habitable space to include replacement of garage door with window. Certificate of Lawful Development (Proposed).

  21 Oct 2024 160m away Lawful development
• 26/0774/HSE Awaiting decision

  Grove House 21 Shenley Hill Radlett Hertfordshire WD7 7AT

  Construction of single storey outbuilding.

  4 Jun 2026 203m away Householder
• 24/1041/FUL Withdrawn

  1 Craigweil Avenue Radlett Hertfordshire WD7 7ES

  Single storey front, side and rear extension to existing dwelling following demolition of garage. Erection of a detached single storey 3x bed house adjacent to 1 Craigweil Avenue with associated works and landscaping.

  12 Aug 2024 219m away Full applications

• 26/0872/CLP Granted

  118 Theobald Street Borehamwood Hertfordshire WD6 4PA

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

  24 Jun 2026 Lawful development
• 26/0681/CLP Granted

  40 Carrington Avenue Borehamwood Hertfordshire WD6 2HA

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

  19 May 2026 Lawful development
• 26/1014/CLP Awaiting decision

  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 Awaiting decision

  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
• 26/1011/CLE Awaiting decision

  6 Brickfield Cottages Theobald Street Borehamwood Hertfordshire WD6 4SD

  Construction of a single-storey detached outbuilding within the rear garden of the existing dwellinghouse for use as a private gym incidental to the enjoyment of the main dwelling (Use Class C3). Certificate of Lawful Development (Existing).

  21 Jul 2026 Lawful development