This residential project is initiated by the client's desire to has a house with the concept of a growing house, in accordance with client's budget. Standing on a large enough area, client wants his residential building design to consist of only one floor. Architect then developed this design into some of building masses by dividing zones according to client needs. The zone division itself consists of the main building with a semi-public zone that accommodates the function of communal space, the second zone accommodates spaces in the service area, the third zone accommodates bedrooms, and the last zone accommodates the function room for cats which is the owner hobby.

The zone division influences the construction process of growing house later. The first stage is building in first zone to third zone, while the fourth will be the second or final stage in the construction process.

In this design, the concept of CATOOM or Cat House was initiated based on one of the client's hobbies which raised Bengal cat. The client's desire to have a house with a separate building specifically for the cat is then developed by the architect by designing the orientation of the building that has a large innercourt connecting the residential zones with the cat zone. Innercourt itself will later serve as a green open space in this residence, as well as an area for the owner's interaction with his cat, considering the Bengal cat is a cat that is quite active and likes to play.