In Hampstead (NW3) the split is 84% flats to 17% houses over 11,433 households, and the stock is Georgian and early Victorian.
Because 45% of Hampstead is privately rented and 17% socially rented, a lot of NW3 work is agreed with a landlord or managing agent rather than the person opening the door.
Hampstead substrates run to with solid brick on the party and external walls — and lath and plaster over timber studs, a median age of 35 in this neighbourhood shapes what gets ordered here. Nothing is drilled until the wall has been sounded, because a plasterboard plug spun into lime plaster in Hampstead, 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.
Getting to the door matters as much as the job: steep, narrow lanes where a 3.5t Luton is the practical maximum; several streets need a shuttle from Whitestone Pond. Hampstead (Northern) is the nearest station, and one technician for a standard garden patio or deck; two for a roof terrace or balcony where water has to be carried up by bowser and furniture moved through a lift or stairwell.