GROWTH SHELTER BASED ON GDS-BB PRINCIPLES FOR MANDAILING ETNIC SOCIETY IN MOUNTAINOUS AREA, NORTH SUMATERA, INDONESIA

This research aims to provide an alternative design of core house and its development by using GDS-BB principle for Mandailing etnic society in mountainous area. This qualitative research is use the combine methods such as planning, design and brainstorming. An analysis of the characteristics of the findings in the previous study yielded two land alternatives for the proposed GDS-BB home design development. Two types of land are proposed after analyzing each stage of housing development in 24 growing house cases in three villages. The stages of development and construction of each case study house indicated that houses which is grow static but also developing dynamically, even extent of reaching three times the core house. This phenomenon shows that there are two tendency of interest of society to its dwelling, such as simple type (small) and big type. This finding recommends two types of land to be developed into GDS-BB core house and its development, namely 1) land type 1 with measuring 8 x 9 meters called pakarangan and 2) land type 2 with measuring 9 x 13 meters called pakarangan bolak. For one type of land, there are four design alternatives, while two land types have two alternative design of core house and its development. The number of GDS-BB design of core house and its development in each type of land was influenced by the tendency of more modest grown houses (13 samples) compared to the vast growing house (11 samples).