请教自己装修过房子的朋友, especially兔宝宝 2 t$ X" B- q$ l: u2 iI 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? ) I' \. R0 P: x " X" p {2 w; p+ fThanks.