PurposeThe purpose of this study is to evaluate the real estate investment performance portfolio decision-making of the insurance firms by the National Housing Fund (NHF) Act in reducing the housing deficit in Nigeria. The insurance companies' gross premium, real estate investment and return on investment trends for the period 2014–2019 were evaluated, to determine the extent of their investment in real estate in Nigeria, this ought to have reduced the shortfall in housing.Design/methodology/approachBoth primary and secondary sources were used. Cronbach’s alpha was used for testing the reliability. The Friedman mean rank with Chi-square was used for different types of real estate investment properties and for reasons for investing in real estate by insurance companies in Nigeria. The test for normality was conducted using the Shapiro–Wilk and Spearman correlation for the significance. The percentage and the data envelopment analysis frontier model were used for measuring performance and efficiency.FindingsThe results showed that the majority of real estate investments made by insurance companies were in commercial and land buying and reselling and that their performance was below average. However, their motivation for investing is not toward the NHF Act but rather for diversification and increasing their capital.Originality/valueTo the best of the authors’ knowledge, this is one of the first studies in Nigeria that looked at how well insurance firms have performed investing in real estate as required by the NHF Act. However, the new Act, the National Housing Fund (Establishment) Act of 2018 which was put on hold due to flaws, affected data availability beyond 2019.