Did the Horde races help the Blood elves rebuild Silvermoon?

The city looks fully restored and bigger than before but I wonder if the Blood elves managed to do this on their own or if Horde races helped them in this task, maybe the Nightborne since the two races are quite close to each other. In any event it is certain the fact Blood elves are in the Horde and enjoyed their protection allowed them to rebuild without being attacked too often.