This may be of interest to some old London hands...
For many years I have stayed at Vincent House London Residence when in London -- either for a few nights or on occasion for 6 weeks. Can't remember if I learned of it on this forum or Fodors. It started as a Residential Club in the WW2 era, and ended up as a combination long term residence (13+ weeks) , mid-term residence (5-13 weeks) and hotel. Very much like an upscale university residence hall for real grown-ups.
Perfect location, immaculate but simple accommodation, excellent breakfast (and dinner if you were a "resident" ) and the presiding cat, Gigi. A common area/lounge and a fabulous garden, perfect for summer evenings. And very good for solo travelers.
But it is closing (the sale was announced last November when I was staying there for 6 weeks); the last night of accommodation is July 30. I will stay there for a final five nights later this month, and say goodbye to the staff, many of whom have been there for years.
And now I need a new perch in the UK: do you have any suggestions for something similar, anywhere? Somewhere I can pause for 4-6 weeks, in a pleasant neighborhood hood with good transport, not necessarily in greater London?