请教自己装修过房子的朋友, especially兔宝宝 # N+ Z: A0 v; i, R/ E e5 l$ }+ \3 sI 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? v/ U2 C4 c" d/ F # J( Y* v( a* A0 [3 F& c( J" iThanks.