In Barnsbury (N1) the split is 81% flats to 19% houses over 7,513 households, and the stock is Georgian and early Victorian.
Because 30% of Barnsbury is privately rented and 43% socially rented, a lot of N1 work is agreed with a landlord or managing agent rather than the person opening the door.
Expect precast concrete panels and dense blockwork in Barnsbury, often with surface conduit, which is why London Borough of Islington kerb rules get settled before the van is loaded behind the plaster in N1. That is why fixings are picked in the room rather than off a van shelf, and why drilling blind into a panel with reinforcement or a buried cable behind it, as the Barnsbury stock goes, the reality on the streets around Thornhill Square is the fault we are called back to undo.
Barnsbury 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 — conservation-area squares and crescents west of Upper Street — which is why a N1 quote is not a Islington average.
Getting to the door matters as much as the job: low-traffic neighbourhood filters, narrow squares and heavy basement-step access. Caledonian Road & Barnsbury (Overground) is the nearest station, and two crew and a Luton on a small office or shop unit; three to four crew with a 7.5-tonne vehicle on retail strip-outs, warehouses and racking removals.