This paper presents a fuzzy logic application for architectural site planning design. A residential settlement layout is the result of a complex design process aiming to manage the most advantageous location for all houses with certain objectives and constraints. The introduced fuzzy layout planning model will help designers to reach the optimum solution by supporting their reasoning patterns and decision making mechanism. This paper gives the general frame of the proposed analysis model with operational steps through a case study. To reconfigure it as a generative model for producing site layouts is the goal of further research. (C) 2016 The Authors. Published by Elsevier B.V.