The vulnerability of New Zealand (NZ) to earthquakes and floods highlights the need for robust residential construction methods after natural calamities. This research aims to examine the enduring impact of diverse geotechnical parameters on the safety of residential structures in the aftermath of natural calamities. This study aims to fill a vacuum in knowledge by examining how geotechnical factors collectively impact residential safety over time, in contrast to past research that has typically focused on specific post-disaster issues such as socio-economic consequences. The Quantitative (Systematic Literature Review) and Qualitative (Semi-structured Interview) methodologies assess the efficacy of existing safety techniques concerning defined geotechnical characteristics to determine their suitability in guaranteeing long-lasting residential security in NZ. The primary geotechnical factors like liquefaction, settlement, water content of soil, and slope stability influence the safety of the construction site. Various factors alter the site conditions after a disaster, adversely affecting the soil’s stability. There comes the importance of knowledge of site history and expected future land changes before the construction stage. This research highlights the gap between post-disaster construction frameworks and improved procedures to enhance residential structures’ long-term safety and resilience in NZ post-disaster.