ZEMCH 2015 - International Conference Proceedings | Page 313

Figure 2: Detailed sample survey of a detached house (D2) with the initial house layout and the current status of the building and greenery Green space design in the different typologies The first general observation relative to the spatial organization of greenery is that the green spaces form and location present striking similarities in all three housing typologies. However, the dimensions and the type of plants differ from one unit to another. The green space is exclusively rectilinear, located along the property walls and is sometimes punctuated by trees as illustrated in Table 1, presenting a sample of five units per typology. The setback width does not appear to impact the green space design. It should be noted that all units have at least a 1.5 meter-high perimeter wall regardless of the building layout, and may ultimately have influenced the linearity of the green spaces. Green space is most of the time designed by the occupants. However, even when specialists intervened to design the open areas (Units S3 and S5), the result was not different than the rest in terms of forms, location, design and finishing materials. Probably facing the same issue of limited space to work with, the specialists also reverted to rectilinear forms in their design. The green space explored in different individual housing typology, Algeria 311