Planning application
26/0988/OUT
W Block Clare Hall Laboratories Blanche Lane South Mimms Hertfordshire
Proposal
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.
As published by the council, reference 26/0988/OUT
Timeline
Dates from the published record
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17 Jul 2026
Received by Hertsmere
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1 Aug 2026
Added to PlanIndex
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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 outline applications
How this application type works
An outline application tests the principle of developing a site before the detail is worked up. Some or all of the particulars, such as appearance, layout, scale, access and landscaping, are held back as reserved matters for later approval. Permission at outline stage does not by itself allow building to start; the reserved matters must be approved first.
Nearby applications
Within 500 metres
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24/1243/PD42 Granted
15 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Construction of single storey rear extension. Depth: 8.00m, Height: 4.00m, Eaves: 2.90m.
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26/0061/FUL Awaiting decision
15 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Demolition of existing detached bungalow to facilitate construction of 3x two storey dwellings (2x semi-detached and 1x detached) to include hard and soft landscaping, front boundary works to include new crossover and erection of cycle and bin storage.
Other outline applications
In Hertsmere
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26/1005/HCC Awaiting decision
Borehamwood Fire Station Elstree Way Borehamwood Hertfordshire WD6 1JP
Full planning application for the installation of modular sleeping and decontamination units within the site at Borehamwood Fire Station, Elstree Way, Borehamwood, Hertfordshire, WD6 1JP - Planning Reference PL/0586/26 (Consultation from Herts County Council).
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26/0962/EI2 Awaiting decision
Land Known As Home Farm Common Lane Radlett Hertfordshire
Request for a scoping opinion (Environmental Impact Assessment).
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25/1379/OUT Granted
Fields Theobald Street Radlett Hertfordshire WD7 7LS
Demolition of dwelling (Use Class C3) to provide 4x new dwellings (Use Class C3). Outline planning application (with all matters reserved except access).
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26/0838/EI1 Granted
Imperial Place Maxwell Road Borehamwood Hertfordshire
Request for screening opinion (Environmental Assessment - Screening).
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25/1105/OUT Granted
44 Barnet Road Potters Bar Hertfordshire EN6 2QU
Demolition of existing detached two storey mixed use building to facilitate construction of four storey mixed use building with accommodation in the roof space providing 11x flats and 2x ground floor commercial units. Associated hard and soft landscaping and bin / cycle storage. (Outline application with all matters reserved).