Building construction site has been viewed as the most dangerous work environment with a significant level of health and safety risk. The study assessed the health and safety related accidents on building construction site in Nigeria. A cross-sectional survey involving 65 professionals and 72 site operatives’ respondents was conducted. The data revealed that Availability of first aid box and well-being amenities on site, Appropriate health and safety threat valuation, Suitable site arrangement and layout, were top among the existing health and safety practice in place on selected construction site. It also revealed that falling from heights, been struck by an object, wide-open to life-threatening weather, were top among the health and safety related accidents. The study concludes that site operative is majorly susceptible to falls from heights and this may be due to their negligence and noncompliance with safety practices; hence these accidents can be reduced through proper safety practice.