This report provides a comprehensive analysis of consumer behavior in the context of house purchases within Sabah, Malaysia. It begins with an overview of the study, outlining the background, problem statement, research objectives, questions, significance, scope, limitations, and operational definitions. A detailed literature review explores consumer behavior, house purchase consumer behavior from both global and Malaysian perspectives, and the factors influencing house purchases, including price, income, financing, developer branding, and house features. The report also examines goal-setting theory, the theory of planned behavior, and the stimulus-organism-response model. A conceptual framework and hypotheses are developed to guide the research. The methodology chapter outlines the research design, sampling plan, data collection methods, measurement instruments, and hypothesis testing. The report aims to identify the factors that influence purchasing decisions, analyze real estate trends in Sabah, and determine how these trends affect consumer choices. The findings are expected to assist real estate developers, investors, and government agencies in making informed decisions and improving the housing market in Sabah.