请教自己装修过房子的朋友, especially兔宝宝 ! }; J8 _% Z2 B, x, y0 J* A4 LI 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? 9 r: R5 f* G' J E" J% ^& Q 9 L1 ~4 @6 e' iThanks.