Domus Floor Plan
The Romans kept a very strict division between their private family life and their public life and this was reflected in the design of their homes. The single story area at the front of the domus was where they held their public life and entertained guests.
They even kept guest bedrooms and a guest dining room for hospitality, only relatives directly related by blood entered the private family areas. This example that I’ve built includes two shops that open onto the street, the owner of the domus would probably run a business in one of them himself and rent the other one out.
This public area of the house also included a shrine to gods that would represent what impression the owner wished to make on visitors, likely gods relating to prosperity and hospitality. There would also be a smaller shrine to the owner’s ancestors, especially if any were famous for power or glory.
The pool in the middle of this area is filled by rain water from the inward sloping roof, it was used for both drinking water and bathing.

The downstairs private area contains the kitchen, storage areas, slave’s quarters and a larger pool fed by rainwater from the inward sloping roof. This was the house water supply, used for drinking, bathing and cleaning.
The slave’s quarters were cramped for space, they all had to share the one room. The kitchens were dark and smoky, chimneys weren’t invented yet and smoke from the ovens had to escape from small grills placed at the top of the wall. The doorways to the kitchens were also a little shorter to try and keep the smoke from going in to the rest of the house.
There were no windows in the ground level of the domus, plate glass for windows wasn’t invented yet and windows would grant easy access for thieves. Even the upper story of the domus would only have windows facing the inner courtyard for the same reason. Windows weren’t for looking out of, they were for letting light in and letting smoke out.
There would also be a shrine to the house gods here, dedicated to whatever gods the owner deemed important to maintaining a happy home.

The upstairs part of the domus is just bedrooms and the Women’s Sanctuary, this area was exclusively for women and small children, males over the age of 10 were strictly forbidden to enter this area. It was a place where women could be themselves and practice whatever hobbies they enjoyed.

Cheers,
Andrew.