Erection of single storey rear extension at basement level with rooflights, extension of rear ground floor terrace, lowering of rear window sill to form new doorway, and installation of air source heat pump with acoustic enclosure to rear garden and 4 x internal air conditioning units, with associated alterations to rear terrace staircase and landscaping.
45 Downshire Hill London NW3 1NU
RegisteredReference: 2026/3523/PLondon Borough of Camden
Last published check: 29 Oct 2026, 17:32. Check the council record for more recent changes.
Application timeline
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Erection of single storey rear extension at basement level with rooflights, extension of rear ground floor terrace, lowering of rear window sill to form new doorway, and installation of air source heat pump with acoustic enclosure to rear garden and 4 x internal air conditioning units, with associated alterations to rear terrace staircase and landscaping.
Proposal details
Reference
2026/3523/P
Ward
Hampstead Town
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