What's the right bath-to-bed ratio?

Key finding: Across 146,699 US listings, homes with more than one bathroom per bedroom earn about 44% more than comparable homes with the fewest bathrooms per bedroom, within the same ZIP and bedroom count.

The short version

Bathroom count on its own tells you less than the ratio of bathrooms to bedrooms. When you hold ZIP and bedroom count steady, revenue climbs steadily as that ratio rises. This matters most when you are buying or underwriting a property. Two homes can look identical on paper, and the one with a better bath ratio is worth real money.

The data

Here is what the numbers show, drawn from a single study of US listings.

• Sample: 146,699 US listings.

• Within ZIP and bedroom count, revenue rises steadily as the bathroom-to-bedroom ratio increases.

• Listings with more than one bath per bedroom earn about 44% more than those with the fewest baths per bedroom.

Why it works

Bathrooms remove friction for guests. A group of four sharing one bathroom feels cramped, while the same group with two bathrooms feels comfortable. That comfort shows up in what guests will pay and in how often they book. A higher ratio also signals a more livable home for larger parties, which are the bookings that carry the most revenue. The ratio captures something the raw bathroom count misses, because it measures bathrooms against the demand the bedrooms create.

What to actually do

1. When comparing two similar homes to buy, treat a better bath-to-bed ratio as a real revenue advantage, not a rounding detail.

2. In your underwriting model, factor the ratio into your revenue projection instead of assuming two 3-bedroom homes will earn the same.

3. If a property has an unused space that could become a half bath or full bath, price out that renovation against the revenue lift before you rule it out.

The honest caveats

This finding is correlational. It shows that higher-ratio listings tend to earn more, not that adding a bathroom will guarantee a specific increase for your property. The comparison holds ZIP and bedroom count constant, but other factors like finish quality, location within the ZIP, and amenities also move revenue. Adding a bathroom is a renovation, not a quick fix, so treat this as an acquisition and underwriting lever rather than a same-week change.

Methodology

The study drew on 146,699 US listings, using data from IntelliHost and Key Data for 2026. Revenue was compared within the same ZIP code and the same bedroom count, so that homes were measured against genuine local peers of the same size. The bathroom-to-bedroom ratio was then compared across those matched groups. The 44% figure reflects listings with more than one bath per bedroom against those with the fewest baths per bedroom.

Frequently asked questions

What is the ideal bathroom to bedroom ratio for a short-term rental?

Listings with more than one bath per bedroom earned about 44% more than those with the fewest baths per bedroom in this study. Higher ratios were consistently associated with higher revenue.

Does adding a bathroom increase rental revenue?

The data shows a strong association between a higher bath-to-bed ratio and higher revenue, but it is correlational, so it does not prove a fixed dollar return for any single property. Because a new bathroom is a renovation, weigh the cost against the potential lift before committing.

Should I care about bathroom ratio when buying a rental property?

Yes. This is where the ratio matters most, because when you compare two similar homes in the same area and size class, the one with a better bath ratio is worth real money in projected revenue.