Walk Belsize Park from Belsize Village outwards and the mainly Victorian pattern is obvious: 93% of the 3,000 households in NW3 live in flats, 7% in houses.
51% of households rent privately and 39% own, which is why all hanging and mounting services demand here peaks around tenancy changeovers and completion dates.
Belsize Park substrates run to lath and plaster over timber studs; locally that also means with solid brick on the party and external walls — the reality on the streets around Belsize Village. Nothing is drilled until the wall has been sounded, because a plasterboard plug spun into lime plaster in NW3, which crumbles the key and drops the panel — and with 45% one-person households in Belsize Park, one adult is usually the only pair of hands on site is the mistake that costs a NW3 customer twice.
Two streets can behave very differently in Belsize Park: stucco villas and mansion blocks on the slope between Hampstead and Chalk Farm. The quote reflects the street the job is actually on. Belsize Park sits inside the Congestion Charge zone as well as ULEZ, so both are itemised on the quote rather than absorbed into an hourly rate.
Getting to the door matters as much as the job: resident-permit streets, hill gradients and conversion flats up three or four flights. Belsize Park (Northern) is the nearest station, and one fitter for a typical multi-item visit; two where anything crosses 30kg or has to be carried up a shared stairwell.