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Planning application

26/0772/CLP

57 Grantham Green Borehamwood Hertfordshire WD6 2JQ

Awaiting decision Hertsmere Certificate Proposed Lawful Use/Dev

Proposal

Conversion of loft to habitable space including rear dormer and 3x front roof lights. Certificate of lawful development (Proposed).

As published by the council, reference 26/0772/CLP

Timeline

Dates from the published record

  1. 4 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.

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

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    T1 POPLAR To remove the stem growing over the car park. T2 SILVER BIRCH. To remove the lowest branch on the car park side. See annotated photographs

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  • 26/0734/HSE Withdrawn

    16 Burghley Avenue Borehamwood Hertfordshire WD6 2JF

    Single story rear extension.

    28 May 2026 147m away Householder
  • 24/1127/CLP Granted

    54 Dacre Gardens Borehamwood Hertfordshire WD6 2JW

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

    3 Sep 2024 164m away Lawful development
  • 23/0063/HSE Withdrawn

    24 Burghley Avenue Borehamwood Hertfordshire WD6 2JF

    Insertion of dormer window to rear elevation.

    13 Jan 2023 183m away Householder
  • 26/0588/HSE Granted

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    Single storey rear, part first floor rear and front porch extensions with addition of side window.

    30 Apr 2026 186m away Householder
  • 26/0689/CLP Granted

    29 Kimbolton Green Borehamwood Hertfordshire WD6 2NQ

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

    20 May 2026 228m away Lawful development

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
  • 26/1011/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