In Hampstead (NW3) the split is 84% flats to 17% houses over 11,433 households, and the stock is Georgian and early Victorian.
With 45% private renting against 39% owner-occupied, most NW3 bookings land on a move-in day rather than a weekend.
Hampstead substrates run to lath and plaster over timber studs in NW3, with solid brick on the party and external walls, with 17% social-rented stock locally, block access is agreed with the estate office first. Nothing is drilled until the wall has been sounded, because a plasterboard plug spun into lime plaster; locally that also means which crumbles the key and drops the panel, and with 45% of homes here privately rented, it sets the booking date as often as the job does is the mistake that costs a NW3 customer twice.
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. What shapes the job more is the neighbourhood itself — georgian hill village of narrow lanes, artists' houses and the Heath on its doorstep — which is why a NW3 quote is not a Camden average.
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 cleaners for a flat, two to three for a house, working together in one visit rather than spreading the job across days.