Planning appeal decision
New Grange, Blanche Lane, South Mimms, Potters Bar, EN6 3PA
Planning appeal 3303067 at New Grange, Blanche Lane, South Mimms, Potters Bar, EN6 3PA (Hertsmere Borough Council) was dismissed on 12 December 2023 by Inspector Walker A, by written representations. The main issue, as the Inspector framed it: Whether the Council's decision to refuse to grant a certificate of lawful use or development is well-founded.
the use of detached two storey cottage (C3 use) to include the subdivision of the existing plot, associated parking and access from Blanche Lane
- Authority
- Hertsmere Borough Council
- Appeal type
- ldc · Lawful Development Certificate
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Walker A
- Postcode
- EN6 3PA
Main issues, as the Inspector framed them
- Whether the Council's decision to refuse to grant a certificate of lawful use or development is well-founded
What decided it
The evidence submitted by the appellant was not sufficiently precise and unambiguous to demonstrate that the material change of use to a C3 dwelling occurred at least 10 years before the application date and continued without significant interruption.
The decision letter
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With an account
What an account adds to this decision


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The main issues, what decided it, the planning balance and the policies and judgments listed as cited are read from the published letter by Town Planner Pro and are our summary, not the Inspector’s words; the letter itself is the record. Contains public sector information licensed under the Open Government Licence v3.0. Research, not advice.
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