The residential housing market in Egypt plays a crucial role in the economy, yet building companies face challenges in meeting diverse customer demands due to the complexity of house designs and components. Effective customization of dwelling houses requires an exact understanding of customer preferences to reduce complexity and avoid post-construction modifications. This study aims to address the gap in mass customization for residential housing design by identifying and prioritizing customer preferences within the Egyptian real estate market. Through a detailed survey conducted on respondents, including architecture experts and prospective buyers, the study employs analytical hierarchy process (AHP) analysis to derive a prioritized list of housing attributes. The research provides insights into customer priorities and preferences, offering a model for developers to enhance customization and align house designs with user needs. The findings are intended to assist construction companies in delivering customized housing solutions and help buyers make informed decisions. The focus is on the Egyptian market, specifically high and upper middle-class categories, with data collection focused on gathering preferences and requirements using the online survey and helping the customer select his dwelling house modules through three streams, the case study stream, the online preference measurement stream, and the design stream.