请教自己装修过房子的朋友, especially兔宝宝6 O! A. k$ W: e; O
I purchased a 2 storey house with 2100 sqft, partial fininshed basement(1/4 finished), I want to finish the left 3/4 basement plus a full bathroom and a small kichen, do I need some permission? How much I have to pay?( Q. _! }& m' r$ G7 Y