Best Small Pets for Apartments

Selecting a pet for apartment living requires careful consideration of space constraints, noise regulations, odor management, and the owner's ability to provide species-appropriate care. While dogs and cats remain popular, many small mammals are better suited to the confined environment of an apartment. This veterinary-guided article evaluates the best small pets for apartments using four clinical and practical criteria: space requirements, noise output, odor potential, and care level. We draw on guidelines from the American Veterinary Medical Association (AVMA), the Merck Veterinary Manual, and species-specific welfare organizations such as the Rabbit Welfare Association & Fund (RWAF) and the House Rabbit Society.

Quick Q&A

Question: What is the quietest small pet for an apartment? Answer: The quietest small pets for apartments are generally hamsters and gerbils, as they produce minimal vocalizations and their activity is largely confined to their enclosure. However, their nocturnal wheel-running can generate noise, so a silent wheel is recommended. Guinea pigs are more vocal but their sounds are typically low in volume and not disruptive to neighbours.

Evaluating Apartment Suitability: The Four Pillars

When assessing a small pet for apartment living, veterinarians and animal behaviourists consider four primary factors:

1. Space Requirements: The minimum enclosure size and need for out-of-cage exercise.
2. Noise Output: Vocalizations, activity sounds (e.g., wheel running, digging), and potential for disturbing neighbours.
3. Odor Potential: Urine and faeces smell, scent-marking behaviour, and ease of litter training.
4. Care Level: Daily time commitment, dietary complexity, veterinary access, and lifespan.

These criteria are adapted from the AVMA's guidelines on responsible pet ownership and the Merck Veterinary Manual's sections on exotic pet husbandry [1][2].

Top Small Pets for Apartments: A Comparative Analysis

1. Guinea Pigs (Cavia porcellus)

Guinea pigs are social, diurnal rodents that make excellent apartment pets due to their predictable activity patterns and relatively low space needs.

Space Requirements: The minimum recommended enclosure for a pair of guinea pigs is 7.5 square feet (0.7 m²) of floor space, though 10.5 square feet (1.0 m²) is preferred according to the RWAF [3]. They require a solid-bottomed cage with deep bedding (e.g., paper-based or aspen shavings) to prevent pododermatitis (bumblefoot). Daily floor time of 2-4 hours is essential for musculoskeletal health.

Noise Output: Guinea pigs are moderately vocal, producing "wheeking" sounds when anticipating food, purring when content, and chattering when agitated. These sounds are low in volume and rarely disturb neighbours. However, they are diurnal, so noise is concentrated during daylight hours.

Odor Potential: With proper husbandry, guinea pigs have minimal odor. Their urine contains urea which breaks down into ammonia, necessitating cage cleaning every 3-4 days. Spot-cleaning daily and using a high-quality, absorbent bedding (e.g., kiln-dried pine or paper pellets) significantly reduces smell. They are not easily litter-trained, but some individuals can be trained to use a corner litter tray.

Care Level: Moderate. Guinea pigs require a diet of unlimited timothy hay, fresh vegetables (e.g., bell peppers, leafy greens), and vitamin C supplementation (20-30 mg/kg daily) as they cannot synthesize this vitamin [4]. They are prone to dental malocclusion, respiratory infections, and ovarian cysts in females. Lifespan is 5-7 years. Veterinary care should be provided by an exotics-specialist veterinarian.

Veterinary Consensus: The AVMA and House Rabbit Society (for comparative care) emphasize that guinea pigs should never be housed alone due to their strong social needs [5]. A bonded pair or trio is ideal.

2. Rabbits (Oryctolagus cuniculus domesticus)

Rabbits are increasingly popular apartment pets, but they require significant space and enrichment.

Space Requirements: The RWAF recommends a minimum enclosure size of 3m x 2m (10 ft x 6.5 ft) for a pair of rabbits, with a height of 1m (3.3 ft) to allow standing on hind legs [3]. This is larger than many apartment dwellers can accommodate. However, a free-roaming setup with a large exercise pen (x-pen) can work if the rabbit is litter-trained and the apartment is rabbit-proofed (cables, baseboards, toxic plants).

Noise Output: Rabbits are generally quiet. They may thump their hind feet when alarmed, grind their teeth (bruxism) when content or in pain, and make soft honking sounds during courtship. These sounds are unlikely to disturb neighbours.

Odor Potential: Rabbits are fastidious groomers and can be reliably litter-trained. Their urine has a strong ammonia smell if not cleaned regularly (every 2-3 days). Neutering males reduces territorial spraying and urine odor. A high-quality, dust-extracted hay-based litter is recommended.

Care Level: High. Rabbits require unlimited timothy hay, a measured portion of high-fibre pellets, and fresh leafy greens. They are prone to gastrointestinal stasis (GI stasis), dental disease, and uterine adenocarcinoma in unspayed females. Lifespan is 8-12 years. The House Rabbit Society strongly recommends spaying/neutering for health and behavioural reasons [5].

Veterinary Consensus: The AVMA and CVMA recognize rabbits as requiring specialized veterinary care. They are not "starter pets" and are best suited to owners with time for daily interaction and enrichment.

3. Hamsters (Mesocricetus auratus and Phodopus spp.)

Hamsters are solitary, nocturnal rodents that are well-suited to small apartments due to their minimal space needs.

Space Requirements: The minimum enclosure size for a Syrian hamster is 450 square inches (0.29 m²) of continuous floor space, with a deep layer of bedding (6-10 inches) for burrowing [6]. Dwarf hamsters (e.g., Roborovski, Winter White) require similar space but should be housed singly to prevent fighting. Wire cages with deep plastic bases or large glass aquariums with mesh lids are appropriate.

Noise Output: Hamsters are virtually silent vocally. However, their nocturnal activity (wheel running, chewing, digging) can be audible. A silent, solid-surface wheel (not wire) and providing chew toys can mitigate noise. Placing the cage in a room away from the bedroom is advisable.

Odor Potential: Hamsters have a mild, musky odor that is easily managed with weekly cage cleaning and spot-cleaning of the urine-soaked bedding. They are not litter-trainable but will designate a specific corner for urination.

Care Level: Low to Moderate. Hamsters require a diet of commercial pelleted food supplemented with small amounts of fresh vegetables and occasional protein (e.g., mealworms). They are prone to wet tail (proliferative ileitis), a stress-induced diarrhoeal disease, and dental overgrowth. Lifespan is 2-3 years.

Veterinary Consensus: The Merck Veterinary Manual notes that hamsters are prone to stress-related diseases and should be handled gently and infrequently [2]. They are not ideal pets for young children due to their nocturnal nature and tendency to bite when startled.

4. Gerbils (Meriones unguiculatus)

Gerbils are social, diurnal rodents that are quieter and less odorous than hamsters.

Space Requirements: A pair of gerbils requires a minimum of 10 gallons (0.04 m³) of tank space, with a deep bedding layer (8-12 inches) for burrowing. Glass aquariums with mesh lids are preferred to wire cages, as gerbils can chew through plastic and may injure their noses on wire bars.

Noise Output: Gerbils are very quiet. They may thump their hind feet (a warning signal) and make soft chirping sounds. Their activity is primarily diurnal, so they are active when owners are awake.

Odor Potential: Gerbils produce very little urine and have a dry faecal pellet, resulting in minimal odor. Their bedding requires changing every 2-3 weeks, making them one of the lowest-odor small pets.

Care Level: Low. Gerbils require a diet of commercial gerbil pellets, seeds, and occasional fresh vegetables. They are prone to seizures (epilepsy in some lines), tail slip (loss of tail skin due to improper handling), and respiratory infections. Lifespan is 3-4 years.

Veterinary Consensus: The AVMA and European small animal veterinary associations recommend gerbils for owners seeking a low-maintenance, low-odor pet. They should always be kept in same-sex pairs or groups to prevent loneliness.

5. Rats (Rattus norvegicus domesticus)

Rats are intelligent, social, and highly trainable, making them excellent apartment pets for dedicated owners.

Space Requirements: A pair of rats requires a minimum cage size of 2.5 cubic feet (0.07 m³), with multiple levels, hammocks, and enrichment items. Wire cages with narrow bar spacing (0.5 inches) are ideal to prevent escape.

Noise Output: Rats are quiet, producing soft squeaks and bruxing sounds. They are nocturnal but will adapt to their owner's schedule. Their activity (climbing, playing) is generally silent.

Odor Potential: Rats have a strong, musky odor if not cleaned regularly. Their urine contains pheromones used for scent-marking. Daily spot-cleaning and weekly full cage cleaning are essential. Neutering males reduces odor and aggression.

Care Level: High. Rats require a high-protein diet (commercial rat pellets), fresh vegetables, and occasional lean meat. They are prone to respiratory infections (mycoplasmosis), mammary tumours, and dental malocclusion. Lifespan is 2-3 years.

Veterinary Consensus: The Merck Veterinary Manual and VCA Animal Hospitals emphasize that rats require daily out-of-cage social interaction and mental stimulation [2][7]. They are not suitable for owners who cannot commit to daily handling.

6. Chinchillas (Chinchilla lanigera)

Chinchillas are long-lived, active rodents that require specific environmental conditions.

Space Requirements: Chinchillas need a large, multi-level cage (minimum 3 ft x 2 ft x 2 ft) with solid shelves and a dust bath. They are highly active and require daily out-of-cage exercise in a chinchilla-proofed room.

Noise Output: Chinchillas are quiet but can make barking sounds when alarmed. Their activity (jumping, chewing) can be noisy.

Odor Potential: Chinchillas have almost no odor due to their dense fur and dry faecal pellets. Their urine is concentrated but not strongly odorous if cleaned weekly.

Care Level: High. Chinchillas require a dust bath 2-3 times per week, a diet of timothy hay and chinchilla pellets, and a cool, dry environment (below 25°C/77°F) to prevent heatstroke. They are prone to dental disease, fur chewing, and gastrointestinal stasis. Lifespan is 10-15 years.

Veterinary Consensus: The AVMA and European veterinary associations caution that chinchillas are not suitable for warm climates or owners without access to air conditioning [1][2].

Comparative Table: Apartment Suitability Scores

Scoring: 1 = Poor, 5 = Excellent. Noise Score: 5 = Very Quiet, 1 = Very Loud.

Regional Considerations for Apartment Pet Owners

United States and Canada

In North America, apartment leases often have pet policies that restrict certain species. The AVMA recommends that owners check with their landlord before acquiring any pet [1]. Rabbits and guinea pigs are generally accepted, while rats and chinchillas may be prohibited in some buildings. Rabies vaccination is not required for small rodents, but owners should be aware of local zoonotic disease risks (e.g., lymphocytic choriomeningitis virus from hamsters).

Europe

The Federation of Veterinarians of Europe (FVE) and the European Medicines Agency (EMA) provide guidelines on small mammal welfare. In many European countries, it is illegal to house guinea pigs or rabbits alone (e.g., Switzerland, Germany). Owners should ensure compliance with local animal welfare laws. Additionally, the European Pet Food Industry Federation (FEDIAF) provides nutritional guidelines for small mammals.

Australia

The Australian Veterinary Association (AVA) and the Department of Agriculture, Fisheries and Forestry (DAFF) regulate the importation of small mammals. Quarantine requirements apply to some species. Native rodents (e.g., spinifex hopping mice) are available but require specialized care. Rabbits are classified as pests in some states (e.g., Queensland) and may be prohibited.

Clinical Considerations for Apartment Pet Owners

Zoonotic Disease Prevention

All small mammals can carry zoonotic pathogens. The Centers for Disease Control and Prevention (CDC) and the European Centre for Disease Prevention and Control (ECDC) recommend:

• Hand washing after handling pets or cleaning cages.
• Avoiding contact with pet urine, faeces, or saliva.
• Keeping pets away from immunocompromised individuals, pregnant women, and young children.

Environmental Enrichment

The AVMA and AAHA emphasize that all pets require environmental enrichment to prevent stereotypic behaviours (e.g., bar chewing, pacing) [1]. For apartment pets, this includes:

• Foraging opportunities: Hiding food in puzzle toys or scatter-feeding.
• Chew items: Untreated wood, cardboard, or hay-based toys.
• Social housing: Keeping compatible pairs or groups (except for solitary species like Syrian hamsters).

Veterinary Access

Owners should identify an exotics-specialist veterinarian before acquiring a small mammal. The Association of Exotic Mammal Veterinarians (AEMV) provides a directory of qualified practitioners. Routine health checks (every 6-12 months) are recommended for all small mammals.

Conclusion

The best small pets for apartments are those that balance low space requirements, minimal noise, manageable odor, and a care level that matches the owner's lifestyle. Based on veterinary criteria, gerbils and hamsters score highest for overall apartment suitability due to their small enclosures, quiet nature, and low odor. Guinea pigs and rats are excellent choices for owners willing to commit to daily interaction and cleaning. Rabbits and chinchillas, while rewarding, require more space and specialized care, making them better suited to larger apartments or houses with dedicated pet areas.

Ultimately, the decision should be guided by the owner's ability to provide species-appropriate care, including proper nutrition, enrichment, and veterinary access. Consulting with a veterinarian and reviewing guidelines from organizations such as the AVMA, RWAF, and House Rabbit Society will ensure a successful and humane pet ownership experience.

References

[1] American Veterinary Medical Association (AVMA). Pet Ownership Guidelines. AVMA, 2023. Available at: avma.org/resources/pet-owners

[2] Merck Veterinary Manual. Exotic and Laboratory Animals. 11th ed. Merck & Co., 2020. Available at: merckvetmanual.com/exotic-and-laboratory-animals

[3] Rabbit Welfare Association & Fund (RWAF). Housing and Exercise Guidelines. RWAF, 2022. Available at: rabbitwelfare.co.uk

[4] National Research Council (NRC). Nutrient Requirements of Laboratory Animals. 4th ed. National Academies Press, 1995.

[5] House Rabbit Society. Veterinary Resources and Care Guidelines. House Rabbit Society, 2023. Available at: rabbit.org

[6] VCA Animal Hospitals. Hamster Care Guide. VCA, 2023. Available at: vcahospitals.com/know-your-pet/hamster-care

[7] VCA Animal Hospitals. Rat Care Guide. VCA, 2023. Available at: vcahospitals.com/know-your-pet/rat-care

[8] Federation of Veterinarians of Europe (FVE). Small Mammal Welfare Position Paper. FVE, 2021. Available at: fve.org

[9] Australian Veterinary Association (AVA). Pet Care Guidelines for Small Mammals. AVA, 2022. Available at: ava.com.au

[10] Centers for Disease Control and Prevention (CDC). Healthy Pets, Healthy People: Small Mammals. CDC, 2023. Available at: cdc.gov/healthypets/pets/small-mammals