Property Assessment Mass Appraisal Evaluation Service

The City of Philadelphia, Pennsylvania, requires consulting services to evaluate its property assessment mass appraisal system and property tax assessment programs. The agency is seeking to produce a comprehensive evaluation of its mass appraisal practices to ensure alignment with International Association of Assessing Officers standards and industry best practices. This initiative aims to improve assessment quality, data availability, and the overall fairness of the valuation process. The selected contractor must assess and recommend improvements to data quality, specifically identifying opportunities to incorporate additional internal, public, and third-party data sources regarding property characteristics and condition. The scope of work includes reviewing valuation models, sales validation processes, and the representativeness of data used in analyses. The agency also requires independent analyses of equity and fairness to identify any disparities in assessment outcomes across different neighborhoods or populations. The project requires a less discriminatory alternative analysis to determine whether modifications to current valuation methods can reduce disparate impacts without compromising accuracy or uniformity. The contractor must deliver both a detailed written report and an oral presentation summarizing all findings, analyses, and recommendations. The agency allows the work to be performed either onsite or offsite. Only onshore organizations based in the United States are eligible to participate in this procurement. Bidders may submit their proposals digitally via email or through an online portal. The agency is currently looking for proposals to determine the budget and has set a deadline of June 09, 2026, for the submission of all questions.