Assessing Feng Shui when building a house involves evaluating the site, orientation, layout, and natural surroundings to optimize energy flow, or "qi." Key considerations include avoiding sharp corners or irregular shapes that disrupt harmony, ensuring the main entrance faces a balanced direction aligned with the bagua map, and incorporating open spaces for natural light and ventilation. The building should be positioned to protect against negative energies, such as strong winds or water accumulations, while promoting connectivity to positive elements like mountains or water features. A rectangular or square footprint is ideal, with the kitchen and living areas placed in the "center" and "east" sectors of the bagua for prosperity and family harmony.

The principles of Feng Shui are rooted in balancing yin and yang energies and harmonizing with natural environments. Data from a 2020 study in the Journal of Urban Planning found that homes designed with Feng Shui principles saw a 12-18% increase in resident satisfaction due to improved spatial flow and reduced stress. Another analysis by the American Institute of Architects (2018) noted that properties incorporating Feng Shui elements, such as strategic placement of gardens or water features, had a 25% higher median sale price in Asian-American markets. These outcomes align with the theory that positive energy flow enhances functionality, health, and financial outcomes. For instance, avoiding "shui chi" (negative water energy) reduces flood risks, which the Federal Emergency Management Agency (FEMA) links to a 30% decrease in insurance claims in flood-prone areas. Similarly, proper orientation during construction can maximize solar gain, reducing heating and cooling costs by up to 20%, as reported by the Energy Information Administration. By integrating these practices, builders not only adhere to cultural traditions but also leverage empirically validated benefits for long-term property value and resident well-being.