Planning appeal decision
20 Park Hill, Harpenden, AL5 3AT
Planning appeal 6007464 at 20 Park Hill, Harpenden, AL5 3AT (St Albans City Council) was dismissed on 9 September 2026 by Inspector B Plenty, by written representations. The main issue, as the Inspector framed it: the effect of the proposed development on protected species, namely bats.
Energy efficiency improvements to the existing house; demolition of existing garage and conservatory; erection of a two-storey side extension and a one-storey outbuilding in the rear garden
- Authority
- St Albans City Council
- Appeal type
- householder · Householder
- Procedure
- Written
- Development
- residential
- Inspector
- B Plenty
- Postcode
- AL5 3AT
Main issues, as the Inspector framed them
- the effect of the proposed development on protected species, namely bats
- the character and appearance of the area
What decided it
The absence of a Preliminary Roost Assessment to establish whether bats would be affected by the proposed roof modifications, combined with the absence of exceptional circumstances to justify imposing a condition requiring such a survey, meant insufficient information existed to comply with the Habitat Regulations and Policy 106.
What the Inspector cited
- Development plan policies
- Policy 106 of the City and District of St Albans District Local Plan Review (1994)Policy 69 of the City and District of St Albans District Local Plan Review (1994)Policy 72 of the City and District of St Albans District Local Plan Review (1994)Policy ESD1 of the Harpenden Neighbourhood Plan 2018-2033Policy ESD2 of the Harpenden Neighbourhood Plan 2018-2033
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 St Albans City Council
The authority’s record since 2016 · every decision in 2026
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- Dismissed22 September 2026601380233 Oakfield Road, Harpenden, AL52NP
- Invalid17 September 2026600824718 Manland Way, Harpenden, AL5 4QS
- Planning permission granted15 September 20263311314Land at Former Butterfly World, Miriam Lane, St. Albans, Hertfordshire, AL2 3NY
- Notice upheld15 September 20263311308Land at Former Butterfly World, Miriam Lane, St. Albans, Hertfordshire, AL2 3NY
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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