Calgary property sales cooled in September by nearly 12 per cent when compared with last year, but the market for more affordable housing options is making gains, the Calgary Real Estate Board said Monday.

Demand for detached housing slowed for the sixth month in a row, CREB said in a report on September’s sales, and the decline is being attributed to a narrowing segment of the market: homes priced around $500,000.

A “significant” reduction in supply has left few options for potential purchasers, while condos and row houses have seen increased sales activity, CREB said.