Walk St James's from St James's Palace outwards and the mixed-era pattern is obvious: 95% of the 3,927 households in SW1 live in flats, 5% in houses.
Owner-occupation runs at 28% in St James's, so alongside the 44% rental churn there is steady planned work — refurbishments, downsizes and probate clearances booked weeks ahead.
St James's substrates run to with metal stud partitions between rooms — and dot-and-dab plasterboard over blockwork — which is why Westminster City Council kerb rules get settled before the van is loaded. Nothing is drilled until the wall has been sounded, because short screws that grip only the board and slowly lever it off the dabs on these streets — with 29% social-rented stock locally, block access is agreed with the estate office first is the mistake that costs a SW1 customer twice.
Two streets can behave very differently in St James's: gentlemen's clubs, galleries and Jermyn Street shirtmakers between the palace and Piccadilly. The quote reflects the street the job is actually on. St James's sits inside the Congestion Charge zone as well as ULEZ, so both are itemised on the quote rather than absorbed into an hourly rate.
Getting to the door matters as much as the job: royal Parks restrictions, listed building rules and narrow service entrances off Duke Street. Green Park (Piccadilly, Victoria, Jubilee) is the nearest station, and one technician with a van-mounted dip tank; two where a barbecue has to be carried through a flat to reach a terrace.