Walk Westminster and Whitehall from The Palace of Westminster outwards and the period conversion pattern is obvious: 95% of the 3,927 households in SW1 live in flats, 5% in houses.
Owner-occupation runs at 28% in Westminster and Whitehall, so alongside the 44% rental churn there is steady planned work — refurbishments, downsizes and probate clearances booked weeks ahead.
Westminster and Whitehall substrates run to with metal stud partitions between rooms — and dot-and-dab plasterboard over blockwork — with 29% social-rented stock locally, block access is agreed with the estate office first. Nothing is drilled until the wall has been sounded, because in SW1, short screws that grip only the board and slowly lever it off the dabs — the pattern behind 3,927 households inside the SW1 neighbourhood is the mistake that costs a SW1 customer twice.
Two streets can behave very differently in Westminster and Whitehall: government quarter around Parliament Square, Whitehall and Smith Square. The quote reflects the street the job is actually on. Westminster and Whitehall 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, security cordons, camera-controlled streets and pre-notified vehicle access on many roads — one reason two crew and a Luton on a standard mattress and base; the same crew dismantles bunk frames and storage divans on site before the carry. Fitters travelling in use Westminster (Circle, District, Jubilee).