In Bloomsbury (WC1) the split is 95% flats to 5% houses over 6,576 households, and the stock is Georgian and early Victorian.
The renter-heavy mix here (20% owned, 38% privately rented) means a WC1 diary swings between short-notice tenancy deadlines and appointments set a fortnight out.
Bloomsbury substrates run to precast concrete panels and dense blockwork; locally that also means often with surface conduit, with 42% social-rented stock locally, block access is agreed with the estate office first. Nothing is drilled until the wall has been sounded, because drilling blind into a panel with reinforcement or a buried cable behind it, as the Bloomsbury stock goes, a median age of 28 in this neighbourhood shapes what gets ordered here is the mistake that costs a WC1 customer twice.
Bloomsbury 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 — garden squares, university faculties and the British Museum's streets of Georgian terraces — which is why a WC1 quote is not a Camden average.
On access, camden CPZ all week, listed staircases and squares where loading needs a bay suspension — one reason one fitter for a room or a straight flight; two for large open-plan floors, winder staircases and anything carried up above the third floor without a lift. Fitters travelling in use Russell Square (Piccadilly).