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Planning application

21/1088/CLP

Oak Villa Wash Lane South Mimms Potters Bar Hertfordshire EN6 3QA

Granted Hertsmere Certificate Proposed Lawful Use/Dev

Proposal

Construction of single storey side extensions and alterations to fenestration. Certificate of Lawful Development (Proposed). Revised Application.

As published by the council, reference 21/1088/CLP

Timeline

Dates from the published record

  1. 20 May 2021

    Received by Hertsmere

  2. 15 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

  • 25/1550/OUT Awaiting decision

    Premier Inn Swanland Road South Mimms Potters Bar Hertfordshire EN6 3NH

    Outline planning application (with all matters reserved except for means of access) to include demolition of 179 bed hotel and construction of a new industrial and logistics building, Use Class B8 (storage and distribution) and associated electric vehicle charging points, parking and enhanced soft and hard landscaping.

    27 Oct 2025 79m away Outline
  • 26/0666/DOC Decided

    Beacon Service Station St Albans Road South Mimms Potters Bar Hertfordshire EN6 3NE

    Application for approval of details reserved by conditions 1 (Asbestos Survey), 2 (removal of Asbestos), and 4 (Demolition Management Plan) of planning permission reference 25/0788/PD28O.

    15 May 2026 175m away Conditions
  • 26/0673/FUL Awaiting decision

    Land Adjacent To Romani St Albans Road South Mimms Potters Bar EN6 3PP

    Change of use of land to use as a residential caravan site to include 4x caravan/mobile homes with associated hardstanding and erection of acoustic fencing.

    18 May 2026 270m away Full applications
  • 26/0915/MA Awaiting decision

    South Mimms BP Connect Service Station Bignells Corner St Albans Road South Mimms Potters Bar Hertfordshire EN6 3QQ

    Application for a non-material amendment to allow for changes to number of EV charging spaces following the grant of planning permission reference 23/1625/FUL.

    3 Jul 2026 462m away Amendments

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