Talk:Awakening Rage/@comment-175.139.38.27-20180819033404/@comment-16682378-20180822152038

Yes, rebuilding useless buildings such as Fishing spot, Maison de Maiden & Casino give a big boost in XP so you will level up faster & gain extra BP, vitality, unit cost etc, see Level Rewards.

Rebuilding will also help keep resources low ie Yu can harvest more resources & most importantly more XP.