Alternatively, a semi-detached house would also be possible (if allowed), but then there would only be one shared garden, etc.
How do you get from a semi-detached house to a shared garden?
Since it was mentioned several times, it doesn't seem unusual that a property purchase fails at the last minute.
Since
both can and both want to must be true, it only works if
both can. If you both can and want to, but the other person's bank does not cooperate (e.g., because he is not approved for such a large financing after all), then in the end it also doesn't work for you (until you find a new partner, if your bank holds its commitment that long, and the seller of course as well). More often it fails because your bank doesn't "hold out" waiting until the other knows whether he can as well as wants to. Note: usually the seller’s willingness to sell is contingent on
both being able to buy (because he doesn't want to sell just one half). If the "instigating" partner wants to eliminate the factor of uncertainty, this usually means he has to buy alone from the seller at first. But his bank usually only wants to finance
his part of the land, and not his speculation of hopefully passing on the other part soon.
Whereas, through the "agreement," you would have more say than usual in who becomes one of the future neighbors. Feels a bit like casting.
From my point of view, it not only feels like that, it actually smells like it.