A rent comp set (comparable set) is the group of competing rental properties an operator tracks to price their own units — and when that comp data is organized into a reportable format, it’s called a market survey. Whether your team says “comp set” or “market survey,” the fundamentals are the same: a well-built one matches your property on location, building type, unit mix, age, and amenities, so that when a competitor drops rents or adds a concession, you know whether it actually affects your leasing.
The concept is the same on both sides of the border. Building a comp set in Canada, however, is not the same exercise as building one in Dallas or Denver: the listing ecosystem is different, and so is the data collection it takes to see the market clearly. This guide covers what changes.
Why comp sets matter more in a softening market
Canada’s rental market has shifted from historic tightness to genuine competition. CMHC’s October 2025 Rental Market Survey put the national purpose-built rental vacancy rate at 3.1%, up from 2.2% a year earlier and a record-low 1.5% in 2023. Historically strong rental completions met slowing demand, and landlords in several major cities lowered rents on new leases to stay competitive.
When every unit leased itself, a rough comp set was good enough. At 3%+ vacancy, pricing against the wrong competitors means either leaving money on the table or watching your traffic go to the building down the street. Retention and precise competitive pricing are now the operating priorities — and both start with the comp set.
What makes Canadian comp sets different
The platforms Canadian renters — and therefore Canadian pricing data — live on are not the US mix, and no single listing source captures the whole market. That makes the collection strategy behind your comp data matter as much as the comps themselves.
ApartmentIQ collects Canadian data the same way it does in the US: property websites are the preferred source — typically the most current and complete picture of asking rents, availability, concessions, and fees — with leading ILS coverage filling in whenever a property’s site doesn’t tell the full story. The result is unit-level data refreshed continuously across all 10 provinces, rather than a snapshot from any single platform.
CMHC remains the authoritative public benchmark for vacancy and average rent, but it’s an annual survey of in-place rents, not a live pricing feed — useful context for a comp set, not a substitute for one.
How to build a Canadian comp set: five steps
- Define your competitive radius. Start with properties renters would actually cross-shop — same neighbourhood or transit corridor, adjusted for the metro’s geography.
- Match on building type and stock. Purpose-built rental against purpose-built rental — not individually listed condo rentals; note building form (high-rise, mid-rise, walk-up) and approximate vintage.
- Match on unit mix. Compare bachelors to bachelors and two-beds to two-beds, normalizing for size where listings disclose it.
- Normalize the rent number. Confirm what’s included — heat, hydro, water, parking, internet — before comparing face rents. “Heat and hydro included” at $2,100 can beat $1,995 plus utilities. Do the same for concessions and fees: a month free on a 12-month term cuts net effective rent (NER) by over 8%, and mandatory fees push all-in rent the other way. Face rents alone won’t tell you who’s actually cheaper.
- Refresh continuously. Asking rents, availability, and concessions move weekly in a softening market. An annual or even quarterly survey snapshot goes stale fast; live listing data is what keeps a comp set honest.
Once your comp set is defined, the ongoing work is running it as a repeatable survey: organizing the same comp data into a reportable format and refreshing it continuously. For the fundamentals of comp selection at scale, see our guide to identifying comparable properties.
FAQ
What is a rent comp set? A rent comp set is the group of comparable rental properties — matched on location, building type, unit mix, and amenities — that an operator tracks to benchmark pricing, concessions, and availability for their own property.
How many properties should be in a comp set? Most operators track 5–10 direct competitors closely.
What’s the difference between asking rent and average rent in Canada? CMHC’s average rents reflect what sitting tenants pay across existing leases (a two-bedroom averaged $1,550 in the October 2025 survey). Asking rents on listing platforms reflect currently advertised units and run materially higher. For competitive pricing, asking rents are the actionable number.
ApartmentIQ Market Surveys now covers all 10 Canadian provinces with live, refreshed rental and availability data — including concessions, fees, amenities, and occupancy. See how Market Surveys works →