If you have a large dog that provides emotional support, you may be wondering whether size could prevent your animal from qualifying as an ESA. Maybe your landlord has a weight limit for pets, or you’ve been told your dog is “too big” to be an emotional support animal.
The short answer is no — there is no size or weight limit for emotional support animals under federal law. But the details matter, especially when it comes to housing versus air travel. Here’s what you need to know.
There Is No ESA Size Limit for Housing
The Fair Housing Act (FHA) requires landlords and housing providers to make reasonable accommodations for tenants with disabilities. This includes allowing emotional support animals, regardless of any pet policy the property may have.
Under the FHA, ESAs are not considered pets — they are assistance animals. That distinction is important because it means standard pet policies, including size limits, weight caps, and breed restrictions, do not apply to ESAs. A landlord who enforces a “no dogs over 25 pounds” policy cannot use that rule to deny your ESA accommodation request.
This principle has been upheld in court. In Bhogaita v. Altamonte Heights Condominium Association (11th Circuit, 2014), a condo association tried to enforce a 25-pound weight limit against a tenant’s emotional support dog. The court ruled in the tenant’s favor, finding that applying size restrictions to an ESA violates the Fair Housing Act.
What About Breed Restrictions?
Breed restrictions follow the same logic. A landlord cannot deny your ESA simply because it is a pit bull, German Shepherd, Rottweiler, or any other breed that might appear on a “restricted breeds” list.
In Warren v. Delvista Towers Condominium Association (S.D. Florida, 2014), a court found that even a county-level pit bull ban could not override FHA protections for an emotional support animal. The court required an individualized assessment of the specific animal rather than a blanket breed ban.
The bottom line: your ESA’s breed, size, or weight cannot be used as the sole reason to deny your accommodation request.
When a Landlord Can Deny an ESA
While size and breed alone are not valid reasons to deny an ESA, landlords do have limited grounds to refuse an accommodation request. The most common is the “direct threat” exception.
A landlord may deny an ESA if the specific animal poses a direct threat to the health or safety of others, or would cause substantial physical damage to the property. However, this determination must be based on the actual behavior of your individual animal — not assumptions about its breed or size.
For example:
- Valid denial: Your dog has bitten a neighbor on two documented occasions. The landlord can cite these specific incidents.
- Invalid denial: Your landlord says your 80-pound Labrador “could be dangerous” because of its size. No specific conduct is cited.
Other limited grounds for denial include situations where the accommodation would impose an undue financial burden on the housing provider, or when the tenant cannot establish a connection between their disability and the need for the animal.
What Documentation Do You Need?
To exercise your rights under the FHA, you will need a valid ESA letter from a licensed mental health professional. This letter confirms that you have a disability and that your emotional support animal is part of your treatment. Your landlord may request this documentation, but they cannot ask for details about your specific diagnosis.
ESA Size Limits and Air Travel
Air travel is a different situation. In January 2021, the Department of Transportation revised the Air Carrier Access Act (ACAA) to no longer require airlines to accommodate emotional support animals. Under the updated rule, airlines can now treat ESAs as regular pets.
In practice, this means most airlines require pets to fit in an approved carrier that slides under the seat in front of you. Many airlines impose a combined weight limit of around 20 pounds for the pet and carrier together. If your large dog cannot fit in a carrier, most airlines will not allow it in the cabin as a pet.
Psychiatric Service Dogs Are Different
It is worth noting that psychiatric service dogs — dogs individually trained to perform a specific task related to a psychiatric disability — still have full protections under the ACAA. There is no size or weight restriction for psychiatric service dogs on flights, and airlines must accommodate them in the cabin regardless of their size.
The key difference is training. A psychiatric service dog must be trained to perform a task directly related to your disability, such as interrupting a panic attack or providing deep pressure therapy during a crisis. An ESA provides comfort through companionship but is not trained to perform a specific task.
Your Large Dog Can Be an ESA
If your dog helps you manage a mental health condition, its size does not disqualify it from being an emotional support animal. Whether you have a Great Dane, a Saint Bernard, or any other large breed, you have the right to request a reasonable accommodation from your landlord under the Fair Housing Act.
To get started, you will need an ESA letter from a licensed mental health professional. The ESA Registration of America can help you understand the process and connect with a qualified provider.
Key Takeaways
- There is no size, weight, or breed limit for emotional support animals under the Fair Housing Act
- Landlords cannot apply pet size restrictions to ESAs
- Denials must be based on the specific animal’s behavior, not its breed or size
- Airlines are no longer required to accommodate ESAs, so size restrictions may apply when flying
- Psychiatric service dogs retain full airline protections with no size limits
- A valid ESA letter from a licensed mental health professional is required to exercise your housing rights