Census 2021 puts Chalk Farm at 3,654 households with a median age of 34.1. The mainly Victorian stock is social-housing-led, which is why 12% houses and 88% flats need different handling in NW3.
Private renting sits at 28% and owner-occupation at 25%; the first group books mattress cleaning at short notice, the second plans it.
Walls are often with surface conduit — and precast concrete panels and dense blockwork — where 25% owner-occupation means the same home is booked again rather than a new tenant each year, so the fixing that matters in Chalk Farm is chosen on site — the usual failure here is drilling blind into a panel with reinforcement or a buried cable behind it on these streets — with 47% social-rented stock locally, block access is agreed with the estate office first.
Two streets can behave very differently in Chalk Farm: roundhouse gigs, market overspill and terraces climbing towards Belsize. The quote reflects the street the job is actually on. Chalk Farm sits inside the Congestion Charge zone as well as ULEZ, so both are itemised on the quote rather than absorbed into an hourly rate.
On access, market weekend congestion, narrow one-way streets and no off-street parking — one reason one technician with a portable extraction machine and air mover on a single household booking; two technicians on HMO, student accommodation and serviced-apartment rounds where six or more mattresses are cleaned in a day. Fitters travelling in use Chalk Farm (Northern).