Last edited 28 Oct 2024

Main author

Institute of Historic Building Conservation Institute / association Website

178a High Road, Leytonstone

Ref APP/U5930/W/23/3320424 178a High Road, Leytonstone (dismissed)

This appeal relates to the addition of a mansard-roof extension to a property with no heritage designation. (The revised NPPF provides that authorities should ‘allow mansard roof extensions on suitable properties’ where their external appearance ‘harmonises with the original building’.) The inspector found that the scheme would create a building much taller than its neighbours and, as such, would be very visible, altering the character of the area by the loss of an attractive Dutch-style gable.


This article originally appeared in the Institute of Historic Building Conservation’s (IHBC’s) Context 179, published in March 2024. It was written by Alexandra Fairclough, conservation officer for Cheshire East, a lecturer and a member of the IHBC legal panel. A former planning inspector, she was called to the Bar in 2009, and before that was IHBC law and practice coordinator.

--Institute of Historic Building Conservation

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