A technical assistance (TA) mission was conducted from July 10 to July 21, 2023, to assist the authorities in Armenia with the development of a Residential Property Price Index (RPPI). Both the Statistical Committee of the Republic of Armenia (ArmStat) and the Central Bank of Armenia (CBA) fully participated during the mission. The mission was conducted under the auspices of the Data for Decisions (D4D) Trust Fund. The following tasks were completed: (i) examined the quality of the register data from the Cadastre Committee of the Republic of Armenia (CCRA), (ii) contributed to capacity building by providing practical training on RPPI compilation, (iii) examined the institutional arrangements for the development of the RPPI, (iv) assisted with the calculation of experimental indices for apartments following international best practice, (v) advised on the dissemination strategy for the RPPI, and (vi) agreed on a workplan for the further development of the RPPI.