The W1 stock around The Wallace Collection is Georgian and early Victorian. ONS records 88% flats, 12% houses and 3,555 households in Marylebone.
57% of households rent privately and 32% own, which is why bath and shower screen fitting demand here peaks around tenancy changeovers and completion dates.
Walls are dot-and-dab plasterboard over blockwork in W1, with metal stud partitions between rooms — where 32% owner-occupation means the same home is booked again rather than a new tenant each year, so the fixing that matters in Marylebone is chosen on site — the usual failure here is short screws that grip only the board and slowly lever it off the dabs on these streets — which is why Westminster City Council kerb rules get settled before the van is loaded.
Two streets can behave very differently in Marylebone: village high street, Georgian estate streets and the medical quarter along Harley Street. The quote reflects the street the job is actually on. Marylebone sits inside the Congestion Charge zone as well as ULEZ, so both are itemised on the quote rather than absorbed into an hourly rate.
Estate-managed streets, single-yellow evening restrictions and mansion blocks with porters and small lifts. Nearest station is Marylebone (Bakerloo, Chiltern Railways), and one fitter for a pivot or fixed screen; two for sliding and bi-fold enclosures and any wet-room panel over 190cm, which is awkward to hold plumb alone.