special build

would anyone know of a general contractor for special building in green living,the basic description is
The home is a 1 story, 1 bedroom banked against a hill. The home is to be cast-in-place concrete with commercial store front windows. The roof will be a living green roof. there will be adding the second floor later, when closer to occupying the home full time. So, this is not a normal home construction job. it will be located north of Cloverdale Indiana
thanks