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Planning application

W Block Clare Hall Laboratories Blanche Lane South Mimms Hertfordshire

Granted Hertsmere 22/0876/FUL Full Planning Permission

Works: Extension

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Erection of two new buildings within the grounds and an extension to the W-Block for research and development use (Class E), car parking, servicing, landscaping and associated works.

As published by the council, reference 22/0876/FUL

Application record

Reference
22/0876/FUL
Type
Full Planning Permission
Status
Decided
Decision
Granted As published: Grant Permission
Received
18 May 2022
Validated
18 May 2022
Decided
16 Jan 2023
Ward
Shenley
Parish
South Mimms Parish Council
Decision by
Committee Decision

Site history

Applications at this address on the Hertsmere register

This site has had 2 applications since 2022: 1 approved, 0 refused.

  • 26/0988/OUT Awaiting decision

    W Block Clare Hall Laboratories Blanche Lane South Mimms Hertfordshire

    Outline application (with all matters reserved except for means of access) for the demolition of buildings on site and erection of up to 185 homes (including 50% affordable housing) alongside access, landscaping, car parking and associated works.

    Submitted 17 Jul 2026 Outline

Timeline

Dates from the published record

  1. 18 May 2022

    Received by Hertsmere

  2. 16 Jan 2023

    Decision issued: Grant Permission

  3. 9 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

RPS Group plc Agent

125 applications on PlanIndex · across 50 councils · 80% granted

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

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Forge Life Sciences GP Limited Applicant, registered in London

Active · incorporated 2021 · London

1 application on PlanIndex

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

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Documents

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

76 documents on file for this application

  • Decision Decision · 04 Apr 2023
  • S106 Section 106 · 28 Mar 2023
  • Llfa response Consultee replies · 31 Oct 2022
  • Consultee comment submitted online Consultee Comment · 21 Oct 2022
  • Update sheet Committee Report · 20 Sep 2022
  • Committee report august 2022 Committee Report · 08 Sep 2022
  • Update sheet Committee Report · 08 Sep 2022
  • Eco - comments Consultee replies · 15 Aug 2022
  • Consultee comment submitted online Consultee Comment · 02 Aug 2022
  • Highways comments Consultee replies · 29 Jul 2022
  • Highways comments Consultee replies · 27 Jul 2022
  • Proposed site layout plan Amended Plan · 18 Jul 2022
  • Proposed site layout plan (wider site) Amended Plan · 18 Jul 2022
  • Proposed landscaping plan Amended Plan · 18 Jul 2022
  • Block b - proposed elevations 1 Amended Plan · 18 Jul 2022
  • Block b - proposed elevations 2 Amended Plan · 18 Jul 2022
  • Proposed entrance gate details Amended Plan · 18 Jul 2022
  • Highways comments Consultee replies · 24 Jun 2022
  • Dot comment Consultee replies · 17 Jun 2022
  • Architectural liaison officer response Consultee replies · 16 Jun 2022
  • Place services built heritage comment Consultee replies · 16 Jun 2022
  • Consultee comment submitted online Consultee Comment · 14 Jun 2022
  • Consultee comment submitted online Consultee Comment · 10 Jun 2022
  • Bst comment Consultee replies · 08 Jun 2022
  • Enn comment Consultee replies · 07 Jun 2022
  • Enn comment Consultee replies · 07 Jun 2022
  • Cadent gas response Consultee replies · 06 Jun 2022
  • Cadent gas response Consultee replies · 06 Jun 2022
  • Cadent gas response Consultee replies · 06 Jun 2022
  • Minerals and waste comments Consultee replies · 06 Jun 2022
  • Hp response Consultee replies · 01 Jun 2022
  • Hm1 response Consultee replies · 01 Jun 2022
  • Thames water response Consultee replies · 01 Jun 2022
  • Cadent gas response Consultee replies · 01 Jun 2022
  • Tfl response Consultee replies · 01 Jun 2022
  • Drawings register 20220520 Drawing/Plans · 23 May 2022
  • Block c _ proposed sections. Drawing/Plans · 23 May 2022
  • Block c _ proposed elevations 2 Drawing/Plans · 23 May 2022
  • Block c _ proposed elevations 1 Drawing/Plans · 23 May 2022
  • Block c _ proposed roof plan Drawing/Plans · 23 May 2022
  • Block c _ proposed ground floor plan Drawing/Plans · 23 May 2022
  • Block b _ proposed sections Drawing/Plans · 23 May 2022
  • Block b _ proposed roof plan Drawing/Plans · 23 May 2022
  • Block b _ proposed ground floor plan Drawing/Plans · 23 May 2022
  • Block a _ proposed sections Drawing/Plans · 23 May 2022
  • Block a _ proposed elevations 2 Drawing/Plans · 23 May 2022
  • Block a _ proposed elevations 1 Drawing/Plans · 23 May 2022
  • Block a _ proposed roof plan Drawing/Plans · 23 May 2022
  • Block a _ proposed ground floor plan Drawing/Plans · 23 May 2022
  • 220511_pottersbarcruk_das Drawing/Plans · 23 May 2022
  • Existing sections Drawing/Plans · 23 May 2022
  • Existing elevations 2 Drawing/Plans · 23 May 2022
  • Existing elevations 1 Drawing/Plans · 23 May 2022
  • Existing roof plan Drawing/Plans · 23 May 2022
  • Existing ground floor plan Drawing/Plans · 23 May 2022
  • Existing site layout plan Drawing/Plans · 23 May 2022
  • Site block plan Drawing/Plans · 23 May 2022
  • Site location plan Drawing/Plans · 23 May 2022
  • Applicationformredacted Application Form · 18 May 2022
  • W block cil form - final CIL · 18 May 2022
  • W-block - planning statement - final Supporting Documents · 18 May 2022
  • W-block das-30-62 Supporting Documents · 18 May 2022
  • W-block das-1-29 Supporting Documents · 18 May 2022
  • Block a and b energy statement-s2-p05 Supporting Documents · 18 May 2022
  • Breeam pre-assessment report-p01 Supporting Documents · 18 May 2022
  • Ecological impact assessment Supporting Documents · 18 May 2022
  • Framework travel plan Supporting Documents · 18 May 2022
  • Heritage statement Supporting Documents · 18 May 2022
  • Stage 1 rsa designers response Supporting Documents · 18 May 2022
  • Transport assessment_compressed Supporting Documents · 18 May 2022
  • Tree survey and aia and method statement and tree protection plan Supporting Documents · 18 May 2022
  • Aia appendix h rev. a Supporting Documents · 18 May 2022
  • Flood risk assessment and drainage strategy (main text) Supporting Documents · 18 May 2022
  • Flood risk assessment and drainage strategy (appendices)_compressed Supporting Documents · 18 May 2022
  • Phase 1 desk study report_compressed Supporting Documents · 18 May 2022
  • W-block covering letter final Supporting Documents · 18 May 2022

Watch members (£5 a month) open the document list from here.

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What this grant of permission means

Hertsmere granted permission on 16 January 2023, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

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    22/1180/LBC Submitted 5 Jul 2022 50 yards away

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    Granted Heritage and listed buildings 15 docs
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    26/0988/OUT Submitted 17 Jul 2026 100 yards away

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    Outline application (with all matters reserved except for means of access) for the demolition of buildings on site and erection of up to 185 homes (including 50% affordable housing) alongside access, landscaping, car parking and associated works.

    Awaiting decision Outline Demolition 105 docs
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In Hertsmere

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    Received 23 Jul, published by the council 8 Aug 2026 Full applications
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    Received 19 Oct, published by the council 23 Oct 2026 Full applications
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    Received 16 Oct, published by the council 22 Oct 2026 Full applications