Census 2021 puts Hampstead at 11,433 households with a median age of 35.4. The Georgian and early Victorian stock is renter-heavy, which is why 17% houses and 84% flats need different handling in NW3.
Private renting sits at 45% and owner-occupation at 39%; the first group books garden clearance at short notice, the second plans it.
Hampstead substrates run to with solid brick on the party and external walls — and lath and plaster over timber studs — the reality on the streets around Hampstead Heath and Kenwood House. Nothing is drilled until the wall has been sounded, because which crumbles the key and drops the panel — and a plasterboard plug spun into lime plaster — which is why London Borough of Camden kerb rules get settled before the van is loaded is the mistake that costs a NW3 customer twice.
Two streets can behave very differently in Hampstead: georgian hill village of narrow lanes, artists' houses and the Heath on its doorstep. The quote reflects the street the job is actually on. Hampstead sits inside the Congestion Charge zone as well as ULEZ, so both are itemised on the quote rather than absorbed into an hourly rate.
Steep, narrow lanes where a 3.5t Luton is the practical maximum; several streets need a shuttle from Whitestone Pond. Nearest station is Hampstead (Northern), and two crew and a Luton or tipper; three where everything has to be carried through a hallway.