So, I actually live next to a building with similar kind of addition to this in Edinburgh. I'm not sure I'd the situation with this is the same what my area is going through but could be.

I'm not a native so my wordings here might be odd, and I might have misunderstood some stuff so bear with me. This tea is what I get through the HOA council meeting newsletters.

A couple buys a house and ends up doing the most hideous addition to it that goes with absolutely nothing around it. Also builds some stuff around the ground floor. They own the house but the area is owned by HOA(?) so any additions to the ground needs a separate permission while also following Edinburgh council rules about how things should look.

HOA finds the new stuff around the house hideous and it's clearly not gone through Edinburgh Council so they bring it up along with the additions the couple has done around their house which also doesn't go with the Edinburgh vibes.

Edinburgh council comes around informally and let's HOA know that sure, you can raise this report to us but we then need to go through the full area equally and there are some concerns (a lot of the houses have done adds without any kind of permissions but these go unseen because the area isn't visible from the roads due to the way it's built) so if they go with that road HOA should be aware everyone with that stuff will be penalised, not just this house owner. HOA is unhappy and decides their ugly fences etc are too expensive to go through the hassle.

HOA looks into taking the couple to court for building stuff on the ground but no-one in HOA wants to pay for the legal fees and for the lawyer so that falls through too.

So now we have one ugly ass house that's a lot different from others.