Best Pets for Apartments: Cats, Small Dogs and Small Animals Compared

The best pet for an apartment is usually a short-haired adult cat, followed by a toy-breed dog, then caged small animals and fish. The deciding factors are exercise needs, noise and what your lease charges, not the square footage alone. This guide compares the best pets for apartments by space, daily time and yearly cost. It uses PetBudget's breed data and 2025 rental-market figures.

Photo: Sharon Snider / Pexels

What makes a pet right for an apartment?

A pet suits an apartment when its daily needs can be met inside your unit and your building's rules. Five things decide it: exercise, noise, shedding, size and lease terms. A pet can pass on four of them and still fail on the fifth.

About 95 million U.S. households owned a pet in 2025, according to APPA's May 2026 industry release. Dogs live in 53% of those homes and cats in 39%. Many of those households rent, so the lease question comes up often.

Check each candidate against these five tests:

1. Exercise. Can the pet burn off its energy indoors and on the walks you will really take?
2. Noise. Barking, chirping and night-time activity carry through apartment walls.
3. Shedding and smell. Small spaces concentrate hair, litter and cage odor.
4. Size. An adult weight matters more than puppy size, and a landlord may cap it.
5. Lease terms. Pet rent, deposits and breed or weight limits change the real price.

Best pets for apartments compared at a glance

Cats, toy dogs and small caged animals each fit apartment life in a different way. The table compares them on the factors above. Cat and dog figures come from PetBudget's breed data. The small-animal rows use PetMD and PetLifetimeCost.

Pet	Daily time	Noise	Yearly cost (before pet rent)	Typical lifespan
Short-haired cat	20 min play, litter care	Low	About $822 (Domestic Shorthair)	15 years
Toy dog	30 min walks, 3 or more outings	Medium to high	$1,463 to $1,599	13 to 15 years
Flat-faced small dog	20 to 25 min, short walks	Medium	$2,258 to $2,594	9 to 11 years
Hamster	Evening handling, spot-clean	Low, night wheel	$180 to $360	1 to 1.5 years
Rat or guinea pig pair	Daily time out of the cage	Low	$240 to $480 and up	2 to 6 years
Leopard gecko	Daily temperature check	Very low	Setup-heavy, low monthly	15 to 20 years

Cost and lifespan sources: PetLifetimeCost's cheapest pets by monthly cost and PetMD's leopard gecko care sheet. For care time in more detail, see our guide to low maintenance pets.

Why a cat is the best pet for most apartments

A cat needs no walks, uses a litter box, and spends most of the day resting, so it fits any floor plan. PetBudget's data lists the Domestic Shorthair at 20 minutes of exercise a day, a shedding score of 3 and about $822 a year after the first year. That is below every dog in the dataset.

Some cats suit small homes better than others. These cats stay small and low in energy, per PetBudget's breed data:

Cat	Adult weight (max)	Exercise a day	Yearly cost after year one	Typical lifespan
Domestic Shorthair	12 lb	20 min	$822	15 years
Korat	10 lb	25 min	$797	17 years
Russian Blue	12 lb	25 min	$916	17 years
Exotic Shorthair	12 lb	15 min	$1,067	12 years
Bengal	18 lb	60 min	$1,190	14 years

The Bengal row is there as a contrast. High-energy cats that need an hour of play can tear up a small unit, and they cost more. For a studio, pick an adult with a calm, known temperament. Shelter staff can tell you how a cat behaves around noise and visitors.

Our how much does a cat cost guide covers the first-year price in full. A cat is also the cheapest mammal to insure, as the cheapest cats to insure guide shows.

Which dogs work in an apartment?

A dog works in an apartment when its daily exercise is small enough to meet with a few walks. Size is a weaker predictor than energy. PetBudget's data shows a 70-pound Bulldog needing 20 minutes a day, while a 17-pound Parson Russell Terrier needs 60.

These breeds have low exercise needs and a small adult weight in PetBudget's data:

Dog	Adult weight (max)	Exercise a day	Shedding (1-5)	Yearly cost after year one
Chihuahua	6 lb	30 min	2	$1,599
Russian Toy	9 lb	30 min	2	$1,463
Maltese	7 lb	30 min	1	$2,113
French Bulldog	28 lb	25 min	3	$2,258
Bulldog	50 lb	20 min	4	$2,594
Italian Greyhound	14 lb	45 min	2	$1,682

The chart shows why breed beats size. Three cautions apply to dogs in apartments:

• Small is not cheap. A Chihuahua costs about $1,599 a year, roughly double a Domestic Shorthair cat.
• Flat-faced breeds cost more. The Bulldog and French Bulldog cost $2,258 to $2,594 a year and live 9 to 11 years in PetBudget's data.
• Barking is a lease issue. Alert toy breeds can draw neighbor complaints. Training and daytime company matter more than breed.

For a full cost ranking, see the cheapest dog breeds to own. To price a specific breed, run it through the PetBudget calculator.

Small animals and fish for the tightest spaces

The best indoor pets for a tiny unit are caged animals, fish and reptiles. If your unit is tiny or dogs and cats are banned, a caged animal or an aquarium is the realistic choice, and these are also the best pets for a small house with thin walls. Hamsters, rats, guinea pigs, fish and leopard geckos all live in a few square feet. They also cost the least per month.

PetLifetimeCost's cheapest pets guide lists a hamster at $15 to $30 a month and a rat at $20 to $40. Setup is the larger one-time cost, at $75 to $500 or more depending on the animal. Note these points before you choose:

• Social animals come in pairs. The Humane World guinea pig guide says guinea pigs do best with another guinea pig. That doubles food and bedding.
• Heated habitats need power. A leopard gecko's warm end should sit at 80 to 90°F, per PetMD, so a heat source runs daily.
• Lifespans differ widely. A hamster lives about a year and a half. A leopard gecko can live 15 to 20 years.

Landlords often exclude some species. Ask whether your lease treats fish, small mammals and reptiles differently from cats and dogs. Our cheapest pets to own guide compares yearly costs for all of them.

What apartment pet rent and deposits really cost

Most U.S. rentals now accept pets, but they charge for them. RentCafe's pet-friendly renting statistics report that about 80% of rentals allow pets. The same analysis puts average pet rent at roughly $34 to $37 a month. One-time costs run about $300 as a refundable deposit or about $315 as a non-refundable fee.

Charge	Typical U.S. amount	Source
Monthly pet rent	About $36 ($34 to $37 range)	RentCafe, 2025
Refundable pet deposit	About $300	RentCafe, 2025
Non-refundable pet fee	About $315	RentCafe, as reported by BiggerPockets
Share of rentals allowing pets	About 80%	RentCafe, 2025

A separate report from the Pet-Inclusive Housing Initiative found a similar picture. As summarized by Other Words, 79% of properties accept pets, but under 10% allow them without breed or size limits. Average pet rent was $34 and the average deposit $325.

Read your lease for these items before you adopt:

1. Weight and breed limits. Many properties cap dogs by adult weight or restrict certain breeds.
2. Per-pet charges. Ask whether rent and fees apply to each animal.
3. Pet count. Some buildings allow one pet or two.
4. Liability coverage. Some landlords require renters insurance that covers bites. Our renters insurance dog bite coverage guide explains what policies include.

Service animals are not pets under the federal Fair Housing Act, so landlords may not charge pet fees for them. An emotional support animal request follows a separate process, so ask your landlord for the written policy.

Comparing yearly cost with pet rent added

Adding pet rent narrows the gap between a cat and a small dog less than you might expect, because rent is a flat charge. Take PetBudget's yearly cost and add about $428 a year, which is RentCafe's $35.65 monthly average times 12.

Pet	Yearly cost (PetBudget)	Plus pet rent	Total per year
Domestic Shorthair cat	$822	$428	About $1,250
Chihuahua	$1,599	$428	About $2,027
French Bulldog	$2,258	$428	About $2,686
Bulldog	$2,594	$428	About $3,022

The first-year price is higher for every pet. PetBudget's data lists $2,132 for a Domestic Shorthair, $3,905 for a Chihuahua and $4,849 for a Bulldog, which includes one-time supplies and procedures. Treat a deposit as a separate cash need on move-in day.

A realistic daily time budget for each apartment pet

Time, not space, is the hidden limit in a small home. A dog needs the most scheduled hours, and fish and geckos need the fewest but the least flexible ones. This table turns the care sheets and breed data into a daily routine you can check against your own week.

Pet	Fixed daily tasks	Weekly tasks	Can you skip a day?
Domestic Shorthair cat	Feed once or twice, scoop litter, 20 min play	Deep-clean the litter box	Briefly, with automatic food and water
Chihuahua	3 or more outings, meals, 30 min exercise	Brushing, nail checks	No
French Bulldog	Short walks, meals, avoid midday heat	Skin-fold cleaning	No
Betta fish	Feed once or twice, glance at the heater	15 to 25% water change and test	For a day or two
Leopard gecko	Check both temperature zones, spot-clean	Full clean and disinfect	Not the heat check
Rat pair	Feed twice, spot-clean, supervised play outside the cage	Full cage clean	No

The betta and gecko rows come from PetMD's betta fish care sheet, which sets a 2.5-gallon minimum and a water temperature of 76 to 81°F. The rat row follows PetMD's rat care sheet, which says rats must live in pairs at minimum and need a cage at least 24 inches long, wide and tall. That cage is a large item in a studio.

Work backward from your own schedule. If you leave at 7:30 a.m. and return at 6:30 p.m., a dog needs a midday walker. Our dog and pet sitting boarding cost guide shows what that costs. A cat or a caged pet needs no midday visit, which is a large part of why they win in small rentals.

Moving day: setting up a small space for a new pet

A new pet needs a safe zone, its own supplies and a quiet first week. In a one-room unit, that means carving out a corner before the animal arrives. Setting up first prevents the stress that leads to scratched doors, barking and accidents.

A short checklist for the first week:

1. Pick a safe corner. Place the bed, bowls and litter box where foot traffic is low.
2. Cover the weak spots. Use cord covers and baby gates on balconies, stairs and open windows.
3. Introduce the building slowly. Walk a dog past the elevator and hallway before the first long outing.
4. Tell the neighbors. A short note and a phone number prevents noise complaints from becoming lease issues.
5. Book the vet. Schedule the first visit within the first week. Our first vet visit cost guide shows the typical bill.

A full supplies list helps you price move-in day. See the new puppy checklist and the kitten first-year cost and supplies checklist for itemized prices.

How to choose the best pet for your apartment in five steps

Match the animal to your unit and your week, then price it. Follow these steps in order.

1. Read the lease first. Note the pet count, weight limits, breed lists and fees.
2. Count your free hours. A dog needs three or more outings a day. A cat or caged pet needs less.
3. Test your noise tolerance. Ask neighbors or a manager how thin the walls are.
4. Price the year. Add the breed's yearly cost, pet rent, and a vet fund. Our emergency vet cost guide shows what a surprise bill looks like.
5. Meet the animal. Spend time with an adult cat or dog before you commit, and ask the shelter how it handles small spaces.

If you are still deciding between species, our can I afford a cat guide and can I afford a dog guide walk through the monthly budget.

The bottom line

The best pets for apartments are the ones whose exercise, noise and cost match your unit and your week. A short-haired adult cat is the best all-round choice at about $822 a year. A toy dog fits if you can walk it several times a day. A hamster, rat pair or leopard gecko fits the tightest spaces. Add about $430 a year in pet rent, ask about weight limits before you adopt, and use the PetBudget calculator to price the animal you pick.