The study is aimed at investigating the relationship between capital intensity proxy by property, plant and equipment ratio and investment property ratio and financial returns, which was measured using return on assets and return on equity. The study considered deposit money banks in Nigeria as the unit of study and the scope of study covers a period of 10 year (2021 to 2020). The choice of ten years period is premised on the availability of current data as a matter of interest to the researchers. Using an ex-post facto research strategy, the study drew its secondary data from the audited annual reports of the selected banks. The outcomes indicated that among Nigerian listed banks, property, plant, and equipment ratio significantly affects return on assets as well as return on equity of the studied banks. Also, return on assets and return on equity of Nigerian listed banks was significantly impacted by investment property ratio. All the null hypotheses were rejected as a result of this outcome.  It was thus concluded that financial performance of banks listed on the Nigeria Exchange is positively, statistically and significantly affected by capital intensity. Based on the results, the study suggests that finance managers of banks listed on the Nigerian Exchange should invest in property, plant, and equipment and other investment properties to improve their financial performance and operational efficiencies. A solid capital structure should also be a top priority for them in order to boost their financial metrics like return on equity, return on assets, earnings per share, profit margin, and others.