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Planning appeal decision

Dismissed13 May 20263367893

455 Westhorne Avenue, Eltham, London, SE9 5LR

Planning appeal 3367893 at 455 Westhorne Avenue, Eltham, London, SE9 5LR (Royal Borough of Greenwich) was dismissed on 13 May 2026 by Inspector Merrett R, by written representations. The main issue, as the Inspector framed it: Whether the garage extension constituted permitted development under the Town and Country Planning (General Permitted Development) (England) Order 2015.

a garage extension

Authority
Royal Borough of Greenwich
Appeal type
ldc · Lawful Development Certificate
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Merrett R
Postcode
SE9 5LR

Main issues, as the Inspector framed them

  • Whether the garage extension constituted permitted development under the Town and Country Planning (General Permitted Development) (England) Order 2015
  • Whether the development is immune from enforcement due to the passage of time

What decided it

The garage extension would not have constituted permitted development under the GPDO on either the front or rear elevation grounds, and the appellant failed to provide sufficiently precise and unambiguous evidence that the works had been substantially completed more than four years before the application date.

The decision letter

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More decisions in Royal Borough of Greenwich

The authority’s record since 2016 · every decision in 2026

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  4. Dismissed6 July 20263376767
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  5. Allowed19 June 20266000585
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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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