请教自己装修过房子的朋友, especially兔宝宝 3 Y6 D- T9 b: b. uI 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? % H6 k7 c# b. n, o7 k( p : l0 S6 \* O0 t# u, T% U3 VThanks.