ᐅ Is construction permitted on this plot of land?

After three years, the time has finally come, and the purchase contract for the plot will be sent to us sometime next week. We would greatly appreciate an honest opinion on whether our building project—a 140m2 (1,507 sq ft) urban villa plus a 70m2 (753 sq ft) secondary apartment—would be feasible on this parcel, or if the plot is too unusually shaped. There are still some lots (marked in white) that are reserved but might become available (see attachment).

Our parcel is number 23 (marked with an arrow).