No apartment owner shall do any work which could jeopardize the soundness or safety of the property, reduce the value thereof or impair any easement or hereditament nor may any apartment owner add any material structure or excavate any additional basement or cellar without in every such case the 1[consent of majority of] the other apartment owners being first obtained.
<span style="margin-left:15px;"></span>No apartment owner shall do any work which could jeopardize the soundness or safety of the property, reduce the value thereof or impair any easement or hereditament nor may any apartment owner add any material structure or excavate any additional basement or cellar without in every such case the <sup>1</sup>[consent of majority of] the other apartment owners being first obtained. <br>