Canada’s purpose-built rental market is loosening. However, Ottawa is barely budging. CMHC data shows national multi-family vacancy climbing toward 3-4% in major metros. Meanwhile, Ottawa sits at approximately 2.6% with projections of only 3% by 2026. For investors comparing multi-family opportunities across Canadian markets, that spread is the thesis. Here’s what the data says. In particular, Ottawa remains one of the tightest rental investment markets in the country.
The National Context: Vacancy Is Rising — Except in Ottawa
According to MMC Investments’ Canada Multi-Family Market Report, national vacancy was approximately 2.6% in 2024. By 2026, it is projected to rise modestly to 3.1%. Toronto and Vancouver are expected to reach 3% vacancy. Montreal is trending toward 3-3.5%. In addition, Calgary/Edmonton could potentially hit 5% if supply pressures persist. Ottawa, by contrast, benefits from steady government-driven housing demand. The city also had less of a building boom than other cities. As a result, its market hasn’t loosened as much.
The report specifically notes that Ottawa’s vacancy was ~2.6% in 2024. Furthermore, it is forecast toward 3% by 2027. That’s a 0.4 percentage point increase over three years. Specifically, that’s a fraction of the movement in Calgary or Vancouver. For income-focused multi-family investors, that stability is the differentiator.
Why Ottawa’s Rental Market Stays Tight
Government Employment Stability
Ottawa’s largest employer — the federal government — doesn’t lay off in cycles. Public service headcount provides a baseline of rental demand. This demand doesn’t fluctuate with commodity prices or tech cycles. While the government is reducing its office footprint, employment levels remain stable. Therefore, the workers still need housing.
Less Construction Than Peer Cities
Ottawa didn’t experience the rental construction boom seen in Toronto, Vancouver, or Montreal. CMHC data shows fewer purpose-built rental starts per capita than the Big Three. Less new supply means less downward pressure on vacancy and rents. The supply-demand imbalance has characterized Ottawa’s rental market for a decade. However, a wave of new towers hasn’t resolved it.
Transit-Oriented Development Concentration
PwC’s 2026 property type outlook notes that “developers in Ottawa are prioritizing transit-oriented developments as the city builds out its light-rail network.” New supply is concentrated along LRT corridors. As a result, existing assets in non-transit-served neighbourhoods face less competitive pressure. Investors holding well-located multi-family assets away from new supply nodes retain pricing power.
Ottawa Multi-Family Cap Rates in 2026
CBRE’s Q2 2026 Canadian Cap Rate Report shows Ottawa purpose-built rental cap rates at 4.5-5.2% for Class A. For Class B and value-add, rates sit at 5.2-6.2%. LendCity’s 2026 cap rate survey confirms this. Specifically, Ottawa sits in the “secondary cities” bucket alongside Calgary at 4.5-5.5%. Therefore, it offers meaningfully higher yields than Toronto (3.8-4.5%) or Vancouver (3.5-4.0%).
The spread between Ottawa cap rates and gateway markets is 100-150 basis points. For example, consider a $5 million building at 5% vs 3.5%. That’s $75,000 more in annual NOI. In addition, Ottawa’s vacancy stability means that income is more reliable. This holds especially true compared to markets where new supply is flooding in.
What This Means for Investors
Buy and Hold in Core Neighbourhoods
Multi-family assets in Centretown, the Glebe, Sandy Hill, and Old Ottawa South benefit from walkable amenities. They also offer proximity to government employment and limited new supply. These are the assets where 2.6% vacancy is most durable. Cap rates of 4.5-5.2% with stable cash flow and below-replacement-cost basis make these attractive for long-term holders.
Value-Add in Emerging Corridors
Properties along the LRT Stage 2 alignment offer value-add potential as transit access improves. This is particularly true in the south end (Riverside South, Findlay Creek) and east end (Orleans). Investors can acquire at 5.5-6.2% cap rates. Then, improve units and common areas. Finally, benefit from rent growth as the corridor develops. Our multi-family valuation guide walks through the financial analysis framework.
Sunbelt of Ottawa: Suburban Multi-Family
Kanata, Barrhaven, and Orleans have growing populations but limited purpose-built rental stock. Small multi-family (6-20 units) in these submarkets trades at higher cap rates (6-7%). In addition, it serves demand from young families and tech workers who can’t afford entry-level ownership. Compare cap rates across Ottawa asset classes to see where the yield premium sits.
Risks to Watch
Rent control in Ontario caps annual increases at provincial guidelines (typically 2-2.5%). If inflation outpaces guideline increases, real NOI erodes. However, vacancy decontrol means new tenants can be set at market rates. With 2.6-3% vacancy, turnover is frequent enough to capture market rents. Interest rate movement also matters. For instance, if the Bank of Canada cuts further, cap rates could compress, raising acquisition costs. See our interest rate investment strategy guide for rate-sensitive analysis.
For a cash flow analysis on a specific Ottawa multi-family property, contact Invest613. We provide detailed pro-forma analysis for serious investors.
Frequently Asked Questions
What is Ottawa’s multi-family vacancy rate in 2026?
Ottawa’s purpose-built rental vacancy is approximately 2.6% as of 2024. It is projected to rise modestly toward 3% by 2026-2027. This is among the tightest in major Canadian markets. Specifically, it is driven by stable government employment and limited new rental construction relative to peer cities.
Are Ottawa multi-family cap rates attractive in 2026?
Ottawa Class A multi-family cap rates range from 4.5% to 5.2%. Class B and value-add sit at 5.2-6.2% (CBRE Q2 2026). These are 100-150 basis points higher than Toronto or Vancouver. As a result, they offer higher yields with comparable vacancy stability.
Is Ottawa a good market for rental property investment?
Ottawa combines tight vacancy (~3%), stable government-driven demand, and higher cap rates than gateway markets. In addition, it has limited new supply pressure. For investors seeking income stability with yield premium, Ottawa multi-family is among Canada’s most attractive risk-adjusted opportunities in 2026.