Rideau-St. Lawrence (MLS® HPI)

Canadian Real Estate Association (MLS® HPI) published a composite benchmark price of $540,300 for Rideau-St. Lawrence in August 2026, up 1.7% year over year and up 0.1% on the month.

Across the 35 months on record — October 2023 to August 2026 — the benchmark for Rideau-St. Lawrence rose 1.6%, from $531,900 to $540,300.

The high over that window was $547,700 in May 2025; the benchmark now sits 1.4% below it.

The low was $493,500 in December 2023.

Published benchmarks for Rideau-St. Lawrence were $558,200 for detached homes in August 2026, $521,500 for townhouses in August 2026 and $269,500 for apartments in August 2026.

The segments have not moved together: detached homes gained 2.2%, apartments lost 0.7% and townhouses lost 3.6% over the window — a spread of 5.8 percentage points between detached homes and townhouses.

These are figures published by Canadian Real Estate Association (MLS® HPI) for Rideau-St. Lawrence. The comparisons above — the change over the window, the distance from the high and the spread between property types — are arithmetic compiled by this publication from 35 monthly releases, October 2023 through August 2026.