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Planning application

171 Mutton Lane Potters Bar Hertfordshire EN6 2AN

Awaiting decision Hertsmere 26/0608/CLE Lawful development

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Retention of existing self-contained residential outbuilding / dwelling Certificate of Lawful Development (Existing).

As published by the council, reference 26/0608/CLE

Application record

Reference
26/0608/CLE
Category
Lawful development
Status
Awaiting decision
Received
5 May 2026
Validated
5 Jun 2026
Ward
Potters Bar Furzefield
Parish
No Parish
Postcode
EN6 2AN

Timeline

Dates from the published record

  1. 5 May 2026

    Received by Hertsmere

  2. 5 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 24 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 31 July 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Hertsmere took a median of 58 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

UPP Architects + Town Planners Agent, an architecture practice

129 applications on PlanIndex · across 29 councils · 78% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

7 documents on file for this application

  • Site location plan Drawing/Plans · 05 Jun 2026
  • Existing right side elevation plan Drawing/Plans · 05 Jun 2026
  • Existing rear elevation plan Drawing/Plans · 05 Jun 2026
  • Existing ground floor plan Drawing/Plans · 05 Jun 2026
  • Existing front elevation Drawing/Plans · 05 Jun 2026
  • Application form Application Form · 05 May 2026
  • Planning statement + appendix.p Supporting Documents · 05 May 2026

Trade members open them from here.

Open the documents

What happens while it is decided

This application is with Hertsmere for determination, against a statutory target of eight weeks. Over the last year Hertsmere decided lawful development applications in a median of 55 days. More in our guide to how long planning decisions take.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 201 Mutton Lane Potters Bar Hertfordshire EN6 2AN

    23/0117/CLP Submitted 24 Jan 2023 39m away

    Construction of dormer to side elevation. Certificate of Lawful Development (Proposed).

    Granted Lawful development Loft or dormer 5 docs

  • 201 Mutton Lane Potters Bar Hertfordshire EN6 2AN

    23/0116/CLP Submitted 24 Jan 2023 39m away

    Single storey side and rear extensions. Certificate of Lawful Development (Proposed).

    Refused Lawful development Extension 5 docs
    Small domestic

  • 201 Mutton Lane Potters Bar Hertfordshire EN6 2AN

    23/0410/HSE Submitted 15 Mar 2023 39m away

    Single storey side and rear extensions and alterations to fenestration.

    Withdrawn Householder Extension Windows or glazing 3 docs
    Small domestic

  • 190 And 192 Mutton Lane Potters Bar Hertfordshire

    19/1788/HSE Submitted 6 Nov 2019 44m away

    Demolition of existing side extensions to both properties and construction of two storey & part first floor side extension with integral garage, single storey rear extension and hard landscaping at front boundary to No 190; and two storey & part first floor side extension and single storey rear extension to No 192 (Amended description only).

    Withdrawn Full applications Extension Demolition 18 docs
    Small domestic

  • 190 And 192 Mutton Lane Potters Bar Hertfordshire

    19/1788/FUL Submitted 6 Nov 2019 44m away

    Demolition of existing side extensions to both properties and construction of two storey & part first floor side extension with integral garage, single storey rear extension and hard landscaping at front boundary to No 190; and two storey & part first floor side extension and single storey rear extension to No 192 (Amended description only).

    Withdrawn Full applications Extension Demolition 18 docs
    Small domestic

  • 188 Mutton Lane Potters Bar Hertfordshire EN6 2AW

    26/1282/FUL Submitted 3 Sep 2026 46m away

    84% historically approved · decision due ~29 Oct

    Change of use from class C4 (6 bedroom HMO) to sui generis (7 bedroom HMO) use facilitated by internal alterations, loft extension and bin and bike storage.

    Awaiting decision Full applications Extension Loft or dormer

In Hertsmere

  • 26/0981/CLE Decided

    4 Honeywood Close Potters Bar Hertfordshire EN6 5QE

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

    16 Jul 2026 Lawful development
  • 26/1014/CLP Decided

    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 Decided

    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
  • 26/1021/CLP Decided

    57 Aberdale Gardens Potters Bar Hertfordshire EN6 2JN

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

    22 Jul 2026 Lawful development
  • 26/0996/CLE Decided

    8 Melrose Avenue Potters Bar Hertfordshire EN6 1SZ

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

    20 Jul 2026 Lawful development