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Planning appeal decision

Allowed2 April 20253359899

59 Cowley Hill, Borehamwood, Hertfordshire, WD6 5LQ

Planning appeal 3359899 at 59 Cowley Hill, Borehamwood, Hertfordshire, WD6 5LQ (Hertsmere Borough Council) was allowed on 2 April 2025 by Inspector Down K, by written representations. The main issue, as the Inspector framed it: Whether the retention of the outbuilding as constructed would amount to it being a self-contained dwelling unit that was not ancillary to the main dwelling.

Retention of a single storey outbuilding” without complying with condition 3 attached to planning permission Ref 24/1126/HSE, dated 8 November 2024

Authority
Hertsmere Borough Council
Appeal type
householder · Householder (HAS)
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Down K
Postcode
WD6 5LQ

Main issues, as the Inspector framed them

  • Whether the retention of the outbuilding as constructed would amount to it being a self-contained dwelling unit that was not ancillary to the main dwelling
  • The effect on the living conditions of occupiers of the dwelling and outbuilding with respect to privacy if Condition 3 was removed

What decided it

The outbuilding's functional and physical integration with the main dwelling, combined with the enforceability of an ancillary use condition, demonstrated that it would remain ancillary residential accommodation rather than a self-contained dwelling unit.

What the Inspector cited

Development plan policies
CS22CS25SADM3SADM30SADM40

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 applied

The decision letter

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The authority’s record since 2016 · every decision in 2025

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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.

In the app this decision sits on the map beside every appeal around it, with its letter to read and the main issues, policies and judgments cited picked out.