(Must) WALKOUT LOT : +30~ 40K , t, Y5 D! W9 f U0 p
(Must) Basement rear-facing wall, door and windows : +8~ 9K- {* j* x& j7 a3 J5 D6 g% A9 t$ G
(Optional) Rear-facing deck on mainfloor : +6~ 7K% ~+ ], p' L8 K8 [4 d' K- ~# x
(Optional) Basement finish with 2 bedrooms and 1 bath: : +30~ 50K