The authors investigated why valuation estimates are likely to be biased estimates of market values ​​due to customer influence. The studies were conducted on customer behaviors in the UK, US and New Zealand. The authors highlighted that the information found has made a significant contribution to the real estate literature, but the purpose of this research was to examine the prevalence of customer influence and impact on valuation in Nigeria. The survey found that almost 80% of real estate appraisers and appraisers say they are aware of client influence, mostly from private individuals. It was not stated whether clients were able to influence appraisers and appraisers to change the valuation of their properties. While the study focused on customer influencing behaviors in Nigeria, the US and New Zealand were part of the experience. The results of the behavioral experiments used in the survey may or may not be a reality of what is happening in the real world of real estate, as noted by the authors; however, the findings could serve as a framework for improving how inspectors and appraisers conduct business. Real estate is a profitable business and steps should be taken to ensure that customers receive accurate information on property values. This behavior impacts personal and business transactions, especially when companies and/or individuals are willing to invest in communities by renovating existing properties and building new homes or structures. It is difficult for companies that are considering providing consultancy services on property renovation and recycling issues if the valuation information is distorted. Baroni et al studied the possibility of using rent and... half of paper... practice [Electronic version]. Journal of Corporate Real Estate, 12(3),185-189Jayne, M., Mackmin, D., & Syms, P. (2007). Environmental liabilities for owners and tenants and their impact on the valuation of industrial buildings: implications for property managers [Electronic version]. PropertyManagement, 25(4), 360-380.McDonagh, J., & Nichols, G. (2009). Corporate strategy and real estate strategy: How strong is the link?[Electronic version] Journal of Corporte Real Estate, 11(4), 213-228.Phelps, A. (2010). Logic, practice and results in the management of municipal real estate [Electronic version].Journal of Corporate Real Estate, 12(3), 157-174.Roulac, S. (2007). Brand+beauty+utility=property value. Property Management, 25(5), 428-446. Retrieved March 29, 2011. Seldin, M. Transitions [Electronic version]. Real estate problems, 20(1), 1-7.