Building a Comp Set: How to Choose the Right Benchmark Properties

Benchmarking without the right comparison group is guesswork in a spreadsheet. A comp set — a carefully selected group of comparable properties — is the foundation of meaningful performance analysis in short-term rentals. Build it well, and every metric you track becomes genuinely informative. Build it poorly, and you risk drawing conclusions from data that has nothing to do with your competitive reality.

What a comp set is and why it matters

A competitive set, or comp set, is the group of properties against which you benchmark your own performance. It is the answer to the question: "How are we doing relative to properties that are actually competing for the same guests?"

Without a defined comp set, operators default to market averages that are too broad to be useful — comparisons that lump luxury five-bedroom villas with studio apartments and rural retreats with urban lofts. The result is a benchmark that describes nobody's specific competitive situation.

The five criteria for a good comp set

Strong comp sets are built around five defining characteristics. A property that matches on all five is a genuine competitor; one that misses two or more is a distraction.

• Location proximity. In most markets, the relevant geography for benchmarking is tighter than operators assume. A property one neighbourhood away may attract entirely different guest profiles. Start with a one-mile radius in urban markets and expand only if the sample size is too small.
• Property type and configuration. Benchmark against properties guests would genuinely consider as alternatives. A three-bedroom townhouse should be compared to other three-bedroom units, not to a collection of anything in the postcode.
• Bedroom and bathroom count. These are the primary search filters guests use. A two-bathroom property and a one-bathroom property of the same bedroom count attract different demand even in the same location.
• Amenity tier. A property with a private pool, hot tub, and cinema room competes in a different demand segment than a well-furnished standard unit. Match on the amenities that actually drive booking decisions in your market.
• Pricing tier. If your standard rate is $200 per night, your comp set should not include properties priced at $800. Price segment matters because it determines which guests are even considering your property.

Common comp set mistakes

Too large a comp set is almost as unhelpful as too small a one. A group of 50 or 100 properties contains so much variation that averages lose meaning. Aim for 8 to 15 properties as a working comp set — large enough to be statistically meaningful, small enough to be genuinely comparable.

Selecting aspirational rather than realistic comps is another frequent error. If your property performs at the P50 level in your market, benchmarking against the top 10% of performers will make every metric look discouraging without revealing anything actionable.

Failing to update your comp set is a third mistake. Markets evolve. New properties enter. Others exit. A comp set built 18 months ago may no longer reflect your current competitive landscape. Review it quarterly.

How to maintain your comp set

Set a quarterly review cadence. At each review, assess whether each property in your comp set is still active, still comparable, and still competing for the same guests. Add new entrants that meet your criteria. Remove properties that have changed significantly in quality, pricing, or configuration.