In Westminster and Whitehall (SW1) the split is 95% flats to 5% houses over 3,927 households, and the stock is period conversion.
With 44% private renting against 28% owner-occupied, most SW1 bookings land on a move-in day rather than a weekend.
Walls are dot-and-dab plasterboard over blockwork; locally that also means with metal stud partitions between rooms, the reality on the streets around The Palace of Westminster, so the fixing that matters in Westminster and Whitehall is chosen on site — the usual failure here is short screws that grip only the board and slowly lever it off the dabs, as the Westminster and Whitehall stock goes, where 28% owner-occupation means the same home is booked again rather than a new tenant each year.
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. What shapes the job more is the neighbourhood itself — government quarter around Parliament Square, Whitehall and Smith Square — which is why a SW1 quote is not a Westminster average.
Security cordons, camera-controlled streets and pre-notified vehicle access on many roads. Nearest station is Westminster (Circle, District, Jubilee), and two crew and a Luton on a standard timber shed; three crew where the shed is a workshop size, the base is concrete or the only route out is through the house.