Planning appeal decision
18 Mansion Drive, Tring, Hertfordshire, HP23 5BD
Planning appeal 3364582 at 18 Mansion Drive, Tring, Hertfordshire, HP23 5BD (Dacorum Borough Council) was allowed in part (a split decision) on 14 July 2025 by Inspector Fallon R, by written representations. The main issue, as the Inspector framed it: The effect of the proposed two storey side extension on the character and appearance of the host building and heritage assets, with particular reference to the Tring Conservation Area and No 12 Rothschild Place.
described on the application form as “Two storey side extension and conversion of existing garage”
- Authority
- Dacorum Borough Council
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Fallon R
- Postcode
- HP23 5BD
Main issues, as the Inspector framed them
- The effect of the proposed two storey side extension on the character and appearance of the host building and heritage assets, with particular reference to the Tring Conservation Area and No 12 Rothschild Place
What decided it
The harm to the character and appearance of the conservation area and the setting of the non-designated heritage asset at No 12, assessed as low to medium level less than substantial harm, outweighed the limited public benefits of the two storey side extension.
What the Inspector cited
- Development plan policies
- Policy 120Policy CS27
- National Planning Policy Framework
- Paragraph 212Paragraph 215Paragraph 216
How the Inspector dealt with each one is set out in the app, in order: the development plan, national policy, housing land supply, other considerations and the planning balance, beside the letter.
See how each was appliedThe decision letter
Town Planner Pro holds this letter. The Appeals plan opens it and every other letter we hold, all of them searchable, with the main issues and what decided each case picked out. We do not show letters on the free site because they carry people’s names and addresses.
With an account
What an account adds to this decision


More decisions in Dacorum
The authority’s record since 2016 · every decision in 2025
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- Invalid20 October 20266011032Greymantle, Hempstead Road, Bovingdon, HP3 0HF
- Invalid16 October 20266011849Greymantle, Hempstead Road, Bovingdon, HP3 0HF
- Allowed15 October 20266012966126 Bennetts End Road, Hemel Hempstead, HP3 8DZ
- Allowed14 October 20266006896Apsley Depot, Ebberns Road, Apsley, HP3 9RE
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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