Well, I don't recall as it seems so long since you've been there!
And I never did understand the rules (of MC, I mean, not gwl) although I do have the vague impression that you're not supposed to...
For now, I'll say Borough - try another one.

We might eventually have a HoF here! (Hall of Fame - for frequently appearing pics for those who are new to this game...)

so if I'm understanding this correctly, this picture is from a street that Adrian mentions often, so much so that it has become the Mornington Crescent of GWL (I had to google that 'mornington crescent' reference.... ;-)) but it is neither Mornington Crescent, nor in that other street, nor... in Borough... I'm confused... Lol (just kidding, I have no idea anyways!) It's a church I think...

Yes, I think that about sums it up...
Your are right it is *not* in Mornington Crescent, or Borough or the same borough as Mornington Cres. But it is a former church and nearish to a couple of others I have had in the pool recently.

It's all very confusing...
See Wikipedia
Now I read it again it seems that Whitefield's tabernacle was a wooden building but the 'church' (denomination unspecified) was rebuilt in stone (current building) in 1868. Now I need to look for the foundation stone mentioned in the Wikipedia article. No date in that article for when it was taken over by the school. A ref to Pevsner but I don't have that vol.
No mention of Magistrate's court in WP... (not that I trust it as a definitive reference.)
On the list for further clarification.
PS. Congratulations on the point!

Let me know if you spot the foundation stone. Not sure when I'm going to manage to get down there to look for it (it's too dark now :-)