Multi-family is Ottawa’s most sought-after commercial asset class — and the most mispriced. Sellers anchor to replacement cost. Buyers anchor to cap rates. The real value sits somewhere in between, and the investor who understands all three valuation approaches wins the deal.
The Three Valuation Methods
1. Income Approach (Cap Rate)
This is the primary method for multi-family. Take the net operating income and divide by the market cap rate. The formula is simple. Executing it correctly is not.
NOI = Gross Potential Rent — Vacancy Loss + Other Income — Operating Expenses
Key pitfalls: sellers often understate vacancy (using in-place rather than market vacancy) and exclude capital reserves. A building showing 6% cap may actually be 5.2% once you normalize the numbers.
2. Comparable Sales Approach
Look at recent sales of similar buildings in the same submarket. Ottawa multi-family trades are reported through MLS, CBRE, and Colliers. Key comps to pull: price per door, price per square foot, and effective cap rate. In 2026, Ottawa multi-family trades at $180,000-$250,000 per door for stabilized assets, with downtown and transit-adjacent commanding the top of the range.
3. Replacement Cost Approach
What would it cost to build the same building today? In Ottawa, new multi-family construction runs $300-$400 per square foot for mid-rise. If a building trades below replacement cost, it’s a potential value-add opportunity — but check why. Deferred maintenance, environmental issues, or zoning constraints may explain the discount.
Rent Roll Analysis
The rent roll is the single most important document in a multi-family acquisition. Go unit by unit. Compare in-place rents to market rents. Units rented below market are upside — you can raise rents on turnover. Units above market are risk — tenants may leave. If 40% of units are at market and 60% are below, you have significant NOI growth potential without any capital investment.
Red Flags
- Above-market vacancy with no explanation
- Utility costs materially higher than comparable buildings
- Deferred maintenance visible in the walkthrough but not reflected in the financials
- Rent roll shows “other income” that’s more than 10% of total revenue — coin laundry and parking shouldn’t carry the deal
- Seller won’t provide trailing 12-month actuals and insists on pro-forma only
Frequently Asked Questions
What’s the most important metric when valuing multi-family?
Cap rate on normalized NOI. Not the seller’s pro-forma. Not gross rent multiplier. Normalize the income, normalize the expenses, and apply the correct market cap rate.
How many units do I need for commercial financing?
Five or more units typically qualifies for commercial (CMHC-insured or conventional). Under five units, you’re in residential mortgage territory — different qualification, different rates.
What is a good price per door in Ottawa?
Stabilized multi-family trades at $180,000-$250,000 per door depending on location, age, and unit mix. Downtown and Westboro command premiums. Vanier and east-end trade at discounts.