The NW3 stock around The Roundhouse is mainly Victorian. ONS records 88% flats, 12% houses and 3,654 households in Chalk Farm.
Private renting sits at 28% and owner-occupation at 25%; the first group books patio and decking cleaning at short notice, the second plans it.
Chalk Farm substrates run to often with surface conduit, over precast concrete panels and dense blockwork — where 25% owner-occupation means the same home is booked again rather than a new tenant each year. Nothing is drilled until the wall has been sounded, because in NW3, drilling blind into a panel with reinforcement or a buried cable behind it — measured on the walk in from Chalk Farm (Northern) rather than assumed from a map is the mistake that costs a NW3 customer twice.
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 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. Fitters travelling in use Chalk Farm (Northern).