In Old Street (EC1V) the split is 98% flats to 2% houses over 4,949 households, and the stock is post-war.
The social-housing-led mix here (19% owned, 28% privately rented) means a EC1V diary swings between short-notice tenancy deadlines and appointments set a fortnight out.
Expect precast concrete panels and dense blockwork; locally that also means often with surface conduit, a median age of 32 in this neighbourhood shapes what gets ordered here behind the plaster in EC1V. That is why fixings are picked in the room rather than off a van shelf, and why Old Street gives us drilling blind into a panel with reinforcement or a buried cable behind it, where 19% owner-occupation means the same home is booked again rather than a new tenant each year is the fault we are called back to undo.
Old Street 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 — the roundabout, tech offices and warehouse conversions on the City fringe — which is why a EC1V quote is not a Islington average.
On access, red-route roundabout with no kerbside loading, goods-lift booking in the towers and gated estate yards — one reason one fitter for a floating fit in a single room; two for glued or secret-nailed floors and any job over 25m² in a day. Fitters travelling in use Old Street (Northern, Great Northern).