Good stuff PH, sounds like you worked to get a good hand, and then played it outstandingly!
Estate agent lingo does make me laugh, 'located in a vibrant neighbourhood' = hookers, crack dealers etc if not in your building, then on your street 24/7.
'Now a little tired, but gives a buyer a unique opportunity to put his own stamp on it' = it probably should be demolished and you start again from the foundations up.
... and so on ...
I actually recall there was one London agent back in the late 70s or 80s who wrote honest particulars, to the point of being brutally frank. They were hilarious!!! they even came to be quoted in the press, and parodied in comedy. Smart/reverse marketing?
Buildings, especially 'purpose built' [i.e. not conversions of period
property), that have communal hot water and heating boilers can be a killer. Tenants don't directly pay for the HW/heating, and as a result their usage/cost via the service charge to the owners is often huge.
Even owner-occupiers then tend to think, 'Well, if I'm paying 2k charges a year, then I'll run my heating all year long. too hot? Sod it, I'll open a window' etc.
Over 4-5 floors = needs lifts --=> hideous cost, especially to replace.
So to break-even (as a landlord) you need to charge relatively high rent. The 'free' H/W+heating is not a selling point to a tenant, or not a headline one. That probably makes them harder to let. But I've no direct experience of lifts/communal boilers etc, I have heard a lot of anecdotes.
'Borough creep' is an interesting social phenomenon (lapped up by buyers in the new extremities of an area). Notting hill (IIRC) is purely London W11, but now I've seen property as far east across W2 as Paddington (it's own borough lol) described as NH, since the latter is far more desirable.
Oxford and Cambridge Gardens, safely into W10 to the west also 'became' Notting Hill several years ago. Harrow Road, isn't that W9/W10, is now NH also you say? hehe... it wasn't that long ago that Harrow road and around there was positively dangerous. [My first flat-share in London was off Fernhead road just north off Harrow Road. On the way there with my bags the very first time (fresh from uni), some '''vibrant cosmopolitan young man of Afro-Carib heritage''' offered to sell me drugs in the street and it was mid-afternoon, not 2am). Sorry I digress
That end of Holland Park down by roundabout, and over towards shepherd's Bush Green has always been rough. The Swanscombe Rd blocks, to the NE of the roundabout, that was, and still is, a bad, bad, and damned dangerous area, esp after dark. There is NO way I'd live there, and ***NO*** way I'd live there with my wife. Let's see if Holland Park somehow manages to leap the roundabout and morph shepherd's Bush (a dump) into Holland Park (vvv posh).
[In passing: you mention the hilton down HPAve. That is 'lay-over central' for air-crew in/out of HRW].
funny how when you move around the typical home size, on a similar locally adjusted rent budget works out. I.e. you should getting roughly the same in each international city, but...
London - my baseline, = say 100% space
Tokyo = tiny say 35%
Singapore = about 70% based on the SGn agents GFA. But take out the bomb-shelter, baclony, air-con ledge, internal ledges etc (which they all quote as habitable floorspace), and it might be 55-60%
NYC + suburbs (I've lived in both), 100 > c75%
The surprise was moving to a capital on the European continent (can't name for privacy etc yawn), where the number would be about 130-140%.
Ditto the above, but another country, the place we've just got, perhaps 150%
IME it's very easy to get used to more space. I suppose that's why moving back to smaller space takes quite a lot of adjusting. I wonder how many FTs move home, and find the space they once had and were happy with is now simply not enough, solely because they've got used to having more?
Funny how some of these moves, esp. large -> small turns you into an immediate expert in the latest storage solutions
Anyway, great track record there:
American would say: 'Yo [high-five] way to go man!
Brit: 'you played a good wicket jolly well, congratulations'
Italian: 'Your family must be so happy, bellissimo'
German: 'This is none of my business (embarrassing to hear)'
SGn: 'You did what? <death-glare>'.
hehehe....