I walked down to the end of the lane and found this, about 3 poles on from the other images of the splitter and strain relievers...
Image 1
Image 2
Is this one of the Connectorised Terminals?
Looks like it to me....
this or rather its CommScope replacement (see 0:47s
here).
https://www.commscope.com/solutions/multiport-servic...
Interesting then looking at your map... I presume you live in one of the properties shown as no FTTP available? And in the photo of the CBT, that it seems to be the end of the line for fibre, I presume the cable at the top of the pole is the copper line, and that continues onto one or more poles then splits to the two properties you mention (so it's not really the fibre splitting as per your annotation)?
What are roughly the distances and how many poles between the properties? And from the green cabinet on the pole by the main road, can you see how many separate fibre "cables" take the route up your valley? I presume there would be at least one more CBT serving the property with FTTP available... and the same or another CBT to serve the three properties in the middle. Have you got binoculars?!
It looks like the properties at the end, and you'd think therefore also the ones in the middle, should be able to get FTTP... but then with the obviously challenging environment, I guess you can't tell that there's a totally completed link up the valley to the CBT you can see. And where it splits to the other side of the valley, what does the DSLchecker say of these properties... can any of them get fibre?
The splitter seems to have one in, 2 out, so therefore I'm guessing the "in" comes down the valley from the hamlet, and the 2 "outs" go to the CBT you've photographed, and across to the other side... therefore none return to the 3 properties so you'd need to look for more infrastructure downstream nearer the hamlet that could potentially supply these.
In an ideal world you'll be able to find someone in Openreach who can cross-check your map and their records and tell you really if there's a missing link (and any way to get that addressed), or if they just forgot to update everything to show the work as complete. Though I fear that's an impossible task with BDUK/payment implications... unless they've already claimed for them, they wouldn't want to add properties whilst out of contract if it prevents them claiming in due course - plus they'd no-doubt want a field survey to check everything, and have no funding to do that! So good luck!!