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Planning application

26/1011/CLE

6 Brickfield Cottages Theobald Street Borehamwood Hertfordshire WD6 4SD

Awaiting decision Hertsmere Certificate Existing Lawful Use/Dev

Proposal

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).

As published by the council, reference 26/1011/CLE

Timeline

Dates from the published record

  1. 21 Jul 2026

    Received by Hertsmere

  2. 1 Aug 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.

What happens while it is decided

The process from here

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.

About lawful development applications

How this application type works

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

Nearby applications

Within 500 metres

  • 26/1002/FUL Awaiting decision

    6 Brickfield Cottages Theobald Street Borehamwood Hertfordshire WD6 4SD

    Subdivision of the existing dwelling into two self-contained one-bedroom dwellings (Use Class C3), together with minor internal alterations, enlarged refuse storage, secure cycle storage and associated operational improvements. (Part retrospective.)

    21 Jul 2026 0m away Full applications
  • TP/10/1715 Withdrawn

    31-33 Theobald Street Borehamwood WD6 4RN

    Retrospective application for a timber boarded storage shed and succah area to rear of property.

    6 Sep 2010 65m away Full applications
  • 25/1645/FUL Awaiting decision

    49C Theobald Street Borehamwood Hertfordshire WD6 4RZ

    Change of Use Commercial (Class E) to Community Hall (Class F2).

    17 Nov 2025 89m away Full applications
  • 26/0890/HSE Awaiting decision

    33 Park Crescent Elstree Borehamwood Hertfordshire WD6 3PT

    Demolition of existing detached garage and construction of part single, part two storey side and rear extension with new entrance porch and associated roof alterations to include additional front dormer, and removal of front rooflight and chimney stack.

    26 Jun 2026 176m away Householder
  • 21/1153/VOC Granted

    11 Gables Avenue Borehamwood Hertfordshire WD6 4SP

    Application for variation of condition 3 (materials) to allow for alterations to the roof tiles from Redland 49 tiles to Jutland Slate tiles following grant of planning permission 21/0427/HSE.

    28 May 2021 192m away Amendments
  • 26/0788/FUL Awaiting decision

    Elstree Telephone Exchange 23 Shenley Road Borehamwood Hertfordshire WD6 1AU

    Replacement of 1x existing window pane with aluminium louvre, on each of North West and North East elevations.

    8 Jun 2026 238m away Full applications

In Hertsmere

  • 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
  • 26/0791/CLP Granted

    56 Rushfield Potters Bar Hertfordshire EN6 3HJ

    Conversion of loft to habitable space with rear dormer and Juliet balcony, and insertion of 3x front rooflights. Certificate of Lawful Development (Proposed).

    8 Jun 2026 Lawful development