Bede

After him, their brothers, the Levites, built, etc. Up to this point, the first wall of the city is constructed, from here the measure of the second, that is, the inner wall, which we mentioned above, begins. Hence, in this description, it is said that many of the builders built opposite their own house; for many houses of the city were either adjacent to or joined to the inner wall. …

Commentary on Ezra and Nehemiah ↗