Section 23, Sub-Section C of Dwarfen Common Law

Section 23, Sub-Section C of Dwarfen Common Law stipulates that no above ground structure should be leased unless all the angles are aligned to Dwarfen building code standards as decreed by the Lawmakers of Karaz-a-Karak. 
This law is more famous than others as it is commonly known to be the 'Last Imperial Decree'. As the Karaz Ankor, the great Dwarfen Empire was beset on all sides and below, the need arose for more buildings to be built above ground. Thus, there was need to expand on the little-used Section 23 of Dwarfen Common Law which dealt with above ground structures. Sub-sections A and B already accounted for most above-ground building regulations, but Sub-Section C was added after Godric Grimbody V Wonky Bill. This was one of many later common law cases that had to be decided quickly as Goblins had made it to the doors of the court room. (In this case, the Judge killed forty-two Greenskins with his Gavel before succumbing to the foot of a troll.)