Properties changing hands also follow a similar pattern but up through 2007. The number of transactions peaked in 2007, with August 2008 as a major turning point.
A recent IMF working paper attributes much of the growth in housing prices in Armenia and a number of countries in the region to factors such as GDP, remittances, and external financing. See House Price Determinants in Selected Countries of the Former Soviet Union.

Average price in USD per sq meter in Yerevan (excluding New Marash): 2003-2010Q1
Source: Calculated from Cadastre data. For greater detail see data page of http://www.aea.am/ (under Resources).

Number of transactions in Armenia: 1998-2009.
Source: Cadastre. For greater detail see data page ttp://www.aea.am/ (under Resources)