Abstract The proliferation of multi-function real-estate developments (MRD) frequently leads to the erosion of unique architectural identity (AI), threatening the historical and cultural character of urban areas. This research addresses a critical gap in understanding how new developments can effectively preserve and leverage local cultural heritage. Grounded in the theoretical understanding of heritage-led urban regeneration, this study aims First, to identify the specific architectural elements and design strategies crucial for preserving cultural sustainability (CS) in multi-function real estate projects; and second, to quantify the perceived impact of these strategies on local community engagement and economic viability. The hypothesis posits that multi-function real estate projects that deliberately integrate historically significant architectural features and engage local stakeholders, as evidenced by specific design parameters and community participation metrics, will exhibit a measurably stronger sense of AI and CS, alongside demonstrably higher levels of community acceptance and economic benefit, compared to those that do not. A mixed-methods approach was employed, including a comprehensive literature review on cultural identity and urban development. An analytical case study of the Sur area in Majra El-Oyoun, Cairo, Egypt was conducted to delineate key aspects of its heritage and assess the implications of recent MRD on its AI and CS. A targeted survey questionnaire was then administered to gather both qualitative and quantitative data on perceptions of cultural heritage preservation (CHP). Quantitative data from the survey, analyzed using SPSS, focused on comparing perceptions between professionals and non-professionals, revealing statistically significant insights into cultural identity preservation. The findings highlight the undeniable importance of maintaining architectural identity as a cornerstone for fostering cultural heritage (CH), enhancing the sense of place, and contributing to sustainable urban development. This research asserts that real estate projects prioritizing CHP not only safeguard heritage but also stimulate economic growth and tourism, with statistically significant positive correlations observed. By fostering stakeholder engagement and honoring local customs, these initiatives can achieve a harmonious integration of contemporary development with cultural continuity. The study concludes by offering a set of practical guidelines for preserving cultural identity within MRD, providing a valuable resource for urban planners, architects, and developers.
ElDamshiry et al. (Wed,) studied this question.