AI Analysis: Canada Mortgage and Housing Corporation, housing starts, under construction and completions, all areas, quarterly

Executive Summary

Canada's housing dataset spanning 78 years (1948–2026) reveals a construction pipeline under unprecedented strain, with units under construction reaching an all-time high of 378,042 in late 2022 while completions have failed to keep pace, signaling systemic delays. Housing starts remain well below their 1976 peak of 80,540 units, and strong positive correlations across all three pipeline stages confirm that today's construction backlog will have lasting downstream effects on housing supply.

Key Findings

• Units under construction hit an all-time record of 378,042 in late 2022 — the largest construction backlog in over 78 years of recorded Canadian housing data.
• Housing starts peaked at 80,540 units in April 1976 and stood at only 51,211 units as of January 2026, indicating current construction activity is roughly 36% below its historical high.
• Housing completions peaked at 71,576 units in October 1973 and reached 56,690 units in October 2022, confirming that finished supply has not kept pace with the surge in units under construction.
• All three pipeline metrics are positively correlated, with the strongest relationship between completions and starts (r = 0.787), reflecting the natural sequential flow from groundbreaking to finished unit.
• Housing data is heavily right-skewed across all estimate types: for example, housing starts have a mean of 3,191 units but a median of just 409, indicating a small number of large markets dominate national totals.
• The dataset covers 313 quarters across 13 geographies and 6 unit types, yielding 213 unique data series — with apartment and multi-unit categories contributing disproportionately to recent volume growth.
• Notable outlier periods include the early 1970s construction boom, post-2015 urban intensification, and the COVID-19 era (2020–2021), all of which produced unusual short-term fluctuations across starts, completions, and units under construction.