49 Harrowby Street, LONDON, W1H 5ED

‘the addition of a mansard roof extension and internal alterations to the existing two-bedroom maisonette and one-bedroom lower ground floor flat’

Authority: City of Westminster Council
Appeal type: minor · Planning Appeal
Procedure: Written Representations
Development: residential · Other minor developments
Inspector: Griffiths P

Main issues, as the Inspector framed them

The effect of the works/development on the special architectural and historic interest of the listed building, and whether they preserve or enhance the character or appearance of the conservation area

What decided it

The considerable harm to the significance of the designated heritage assets, particularly the loss of historic fabric and the damaging effect on the architectural proportions and rooftop form of the listed building, outweighs the limited public benefits of the proposal when great weight is given to conservation.

Plan policies cited: Policy 39, Policy 40

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What an account adds

Draw a red line around your site and the appraisal follows.
- Heritage. Listed buildings by grade and distance, conservation areas, scheduled monuments, registered parks and gardens, heritage at risk.
- Landscape and environment. Green belt, national parks and national landscapes, SSSIs, ancient woodland, SPA, SAC and Ramsar sites, nutrient catchments.
- Flooding. Flood zones 2 and 3, surface water, and both again with climate change.
- Transport. The 800 metre station catchment and service frequency, bus stops with their weekday frequency, the cycle network, and the Framework’s transport tests measured for the site.
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