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Planning appeal decision

Allowed3 December 20253352973

75 Pinner Park Avenue, Harrow , HA2 6JY

Planning appeal 3352973 at 75 Pinner Park Avenue, Harrow , HA2 6JY (London Borough of Harrow) was allowed on 3 December 2025 by Inspector Braithwaite J, by written representations. The main issue, as the Inspector framed it: Whether the cubic content of the proposed roof space would exceed the cubic content of the original roof space by more than 50 cubic metres, and whether roof overhangs should be included in that calculation.

Hip to gable loft conversion with rear dormer extension and four rooflights to front

Authority
London Borough of Harrow
Appeal type
ldc · Lawful Development Certificate
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Braithwaite J
Postcode
HA2 6JY

Main issues, as the Inspector framed them

  • Whether the cubic content of the proposed roof space would exceed the cubic content of the original roof space by more than 50 cubic metres, and whether roof overhangs should be included in that calculation

What decided it

The cubic content of the proposed roof space increase, excluding roof overhangs as required by the GPDO interpretation clause, is 48.7 cubic metres, which does not exceed the 50 cubic metre threshold for Class B permitted development.

The decision letter

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More decisions in London Borough of Harrow

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

  1. Dismissed27 October 20266006380
    Thrale Farm, 1 Oxhey Lane, Pinner, HA3 6SX
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  3. Dismissed19 October 20266011336
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  4. Dismissed16 October 20266011223
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  5. Dismissed16 October 20266008284
    24 Uxbridge Road, Stanmore, Harrow, HA7 3LG

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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