Beh Dad House is designed across three functional zones — entry, public and private — which can be introduced across five levels. In the entry zone are the study, the entry hall, the central courtyard (atrium) and the pool hall. In the intermediate layer between the entry and the home's public zone sits the guest washroom. The public zone is composed of the kitchen, the dining area and the sitting room; the half-floor between the public and private zones holds the television room; and finally the private part of the house is shaped by the private hall, the parents' room and two rooms for the children — one of which is set on a lower half-floor with greater independence, beside a terrace facing the street. The main question was the relation between the small plot and the large built area the client required, so the possibility of building upward was used as the answer; but as the building spread in height, the house began to lose its unity. On the other hand, the plot's position on the northern side of the urban grid and its limited width made a light well a necessity.
The idea that took shape within the problem was an empty middle that, with a roof skylight, stretches the functional levels of the building into one another and, in a contrary role, separates them. The vertical staircase was also enlisted for spatial linkage and separation, so that while it connects the levels of the building it also produces a layering of spaces in functional terms — every level defining its role in relation to the next, with the section then allowing the intermediate spaces on the middle layers to detach themselves from the public spaces and to grant the public spaces a greater unity. In this way the empty middle becomes the agent of spatial expansion and division in answer to the constraint of the plot against the required built area. Because the light enters from the roof, a spectrum of light forms in the section of the house; with wooden louvres placed over the outer windows it is possible to darken the house, and a quality of light emerges between the darkness of the body and the brightness of the centre.
