wooden house 3d model

make me a mordeon house which looks good and is 3d and which fits in 1200 sq ft 2.5 story in the second floor there must me 3 room 1 kitchen 2 b/t and a living room and in the ground floor there much be 3 rooms and 1 T/b top floor 2 bedrooms and 1 toilet and the stare case must be outside but we should not get wet when its raining and the house should not have too many glass in the house and only 2.5 floors not 3 floors the stare case should have a roof to hide from sunburns and rain like the stare case must me inside but outside yk