How to Find Rental Comps

If you own a rental property, you've probably asked yourself: "What should I charge for rent?" The answer almost always starts with rental comps.

Rental comps (short for "comparable rental properties") are nearby properties that are similar to yours and have recently been rented. They're the most reliable way to figure out what the market will actually pay for a property like yours.

This guide walks through what makes a good comp, where to find them, and how to use them to set a competitive rent price.

What Counts as a Rental Comp?

Not every nearby rental qualifies as a good comp. You're looking for properties that are similar enough to yours that a tenant would consider both options. The closer the match, the more useful the comp is.

Here's what to look for:

• Location. The closer, the better. Ideally within a mile, and definitely in the same neighborhood or zip code. A comp across town isn't very useful because different neighborhoods have very different rent levels.
• Property type. Compare single-family homes to single-family homes, apartments to apartments. A 3-bedroom house and a 3-bedroom apartment are not the same thing to a renter.
• Bedrooms and bathrooms. Match these as closely as possible. A 2-bed and a 4-bed in the same neighborhood can have wildly different rents.
• Square footage. A 1,200 sqft home and a 2,000 sqft home with the same bedroom count will rent for different amounts. Try to stay within about 20% of your property's size.
• Recency. Rental prices shift over time. A comp from two years ago isn't worth much. Stick to comps from the last 6 to 12 months when possible.

The Similarity Score Matters

Not all comps are created equal. A 3-bed/2-bath down the street from you that rented last month is a much stronger data point than a 2-bed/1-bath half a mile away that rented eight months ago.

When you're looking at comps, you want to weight the closest matches more heavily. This is where a similarity score is useful. It takes into account how close the comp is in terms of location, size, bedroom/bathroom count, and recency, and gives you a single number that tells you how relevant that comp actually is.

In PropMetrics, every rental comp comes with a similarity score so you can quickly see which comps are worth paying attention to and which ones are more of a loose reference.

How Many Comps Do You Need?

Three is the bare minimum to get a reasonable picture. Five to ten is ideal. More than that and you'll start to get a really good sense of the range.

The key word there is "range." You're not looking for one magic number. You're looking for where the market clusters. If most of your comps are renting between $2,300 and $2,500, you have a pretty tight range to work with. If they're spread from $1,800 to $3,000, you'll need to look more carefully at why there's so much variation (usually it comes down to condition, amenities, or exact location).

Where to Find Rental Comps

There are a few places to look:

• Rental listing sites. Zillow, Apartments.com, and similar sites show what's currently listed for rent. These tell you what landlords are asking, but not necessarily what properties are actually renting for.
• Property management companies. If you have a relationship with a local PM, they can often share what similar properties are renting for in the area.
• MLS data. If you have access (or your agent does), the MLS tracks rental listings and lease prices. This is some of the best data available because it shows what properties actually rented for, not just what was listed.
• Rental analytics tools. Tools like PropMetrics pull from multiple data sources and give you a curated list of comps with similarity scores, distance, and price-per-square-foot analysis. This saves you from manually hunting through listing sites and trying to piece together a picture on your own.

Common Mistakes When Using Comps

A few things trip people up:

Using comps that are too far away. Even within the same city, rents can vary significantly from one neighborhood to the next. A comp two miles away might be in a completely different micro-market.

Ignoring condition and amenities. Two houses can look identical on paper (same beds, baths, sqft) but rent for very different amounts if one has been recently renovated and the other hasn't been updated in 15 years. In-unit laundry, updated kitchens, and off-street parking all move the needle.

Only looking at asking prices. What a landlord lists a property for and what it actually rents for can be two different things. If you're using listing sites, keep in mind that overpriced listings that sit vacant for weeks eventually get reduced.

Using too few comps. One or two comps can easily mislead you. Maybe that one comp was underpriced because the landlord needed to fill it fast, or maybe it was overpriced because it's a newly renovated unit. You need enough data points to see the pattern.

Putting It All Together

Once you have your comps, the process is straightforward. Look at where most of the rents cluster. That's your market rate. From there, adjust up or down based on how your property compares. If your property is in better condition than most of the comps, you can price toward the top of the range. If it needs some work, price toward the middle or lower end.

The goal isn't to charge the absolute highest rent possible. It's to charge a rent that attracts quality tenants quickly while maximizing your income. A property that rents in two weeks at $2,400 is better than one that sits empty for two months at $2,600.

PropMetrics handles the comp search automatically. Just type in an address and you'll get nearby rental comps with similarity scores, a rent estimate range, and price-per-sqft analysis. It takes about 10 seconds instead of hours of manual research.