Haus Neptune is a 1,400 sq ft home, 32′ wide by 20′ deep. The house is split in the middle, so each side is 16′ wide. The loft above the master bedroom is also 16′ wide by 8′ deep plus some space on the side of the stairs. It has 2 bedrooms and both have identical bathrooms except for the sinks, which are different designs. The master bedroom has a walk-in closet, whereas the guest room at the lower level does not. Downstairs are also 2 rooms which house the batteries for the solar and the gas tanks for the hot water heater and stove. An extra space was created for the large backup generator, which in turn created another patio. The kitchen has stained concrete countertops and sink, gas stove and fridge, and a wooden pantry.