John Gill Commentary Nehemiah 3:21

"After him repaired Meremoth the son of Uriah the son of Hakkoz another portion, from the door of the house of Eliashib even to the end of the house of Eliashib." — Nehemiah 3:21 (ASV)

After him repaired Meremoth the son of Uriah, the son of Koz,
another piece

He had worked before in another part (Nehemiah 3:4), but having finished that, he sets his hand a second time to the work.

from the door of the house of Eliashib, even to the end of the house of
Eliashib;

The door of his house seems to have been at one end of it, and from that end to the other was a considerable length; he being a great man, the high priest, had a large house.