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Planning application

21/1172/CLP

88 Carpenter Way Potters Bar Hertfordshire EN6 5QQ

Granted Hertsmere Certificate Proposed Lawful Use/Dev

Proposal

Single storey rear extension. Certificate of Lawful Development (Proposed).

As published by the council, reference 21/1172/CLP

Timeline

Dates from the published record

  1. 2 Jun 2021

    Received by Hertsmere

  2. 27 Jul 2021

    Decision issued: Grant Lawful Certificate (Proposed Dev)

  3. 24 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

  • 26/0605/DOC Decided

    70 Forbes Avenue Potters Bar Hertfordshire EN6 5NG

    Application for approval of details reserved by conditions 4 (means of enclosure), 5 (bicycle storage) and 8 (external materials) of planning permission reference 25/1269/FUL.

    5 May 2026 174m away Conditions
  • 26/0702/HSE Awaiting decision

    87 Tempest Avenue Potters Bar Hertfordshire EN6 5LA

    Construction of two storey side extension with associated roof works.

    22 May 2026 212m away Householder
  • 24/1360/CLP Refused

    4 Honeywood Close Potters Bar Hertfordshire EN6 5QE

    Conversion of garage to habitable space to include replacement of garage door with window and new flat roof, construction of single storey rear extension with flat roof. Alterations to fenestration. Certificate of Lawful Development (Proposed).

    21 Oct 2024 276m away Lawful development
  • 26/0981/CLE Awaiting decision

    4 Honeywood Close Potters Bar Hertfordshire EN6 5QE

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

    16 Jul 2026 277m away Lawful development
  • 23/0143/CLP Withdrawn

    51 Park Avenue Potters Bar Hertfordshire EN6 5EN

    Erection of a single storey outbuilding for additional storage. Certificate of Lawful Development (Proposed).

    27 Jan 2023 303m away Lawful development
  • 24/1159/HSE Granted

    19 Coningsby Drive Potters Bar Hertfordshire EN6 5QF

    Construction of infill to existing rear extension with insertion of 2 additional rooflights and widened patio doors.

    10 Sep 2024 305m away Householder

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