There are few attempts to study the vernacular architecture in Gaza based on indoor space distribution. No attempts, so far, has been made to analyze Gazan indoor housing spaces from the perspective of adjacency distribution. This study aims to provide specialists with future design that meets the demand and requirement of Gazan people. A survey conducted in 2005 by the main author on some semidetached houses built by people themselves to fit with their culture and climate revealed that majority of these houses were categorized into two common types: type one: Corridor-Type Plan and type two: Hall-Type Plan . To select the most flexible type that could be used in future housing development, evaluations and social analyses were carried out using the theory of Adjacency Distribution and part of the Space Syntax. As a result, the outcome of the analysis has shown that the number of alternatives of space distribution in the type one is greater than those of type two as the ratio between these types is 30 to 4 types consequently.