Updated September 2026 · Delaware
Emotional Support Animal (ESA) Letters in Wilmington, DE
- Valid for Wilmington rentals under the FHA
- Issued by a licensed provider
- No pet fees, deposits, or breed limits with a valid letter
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Written and fact-checked by Support Animal Editorial TeamReviewed by licensed providersLast reviewed September 2026

73,176
Population
52%
Households renting
$25-$50/mo for pets
Typical pet rent
what buildings charge pets
$0
ESA pet fees
assistance animals are not pets under the FHA
What Wilmington Renters Pay for a Pet, vs. an ESA
| As a Pet | With a Valid ESA Letter | |
|---|---|---|
| Pet deposit | Barred as accommodation | $0 |
| Monthly pet rent | $25-$50/mo for pets | $0 |
| Breed & weight limits | Commonly enforced | Cannot be applied |
| No-pets buildings | Off limits | Must reasonably accommodate |
Typical Wilmington figures from local listings; individual buildings vary. ESA exemptions apply with reliable documentation from a licensed professional.
More renting households than anywhere in Delaware, at a rent below the state’s
Wilmington holds 16,450 renting households out of 31,655 occupied homes, on the 2020–2024 American Community Survey five-year estimate. That is 52.0 percent of the city, and 15.1 percent of every renting household in Delaware, the largest single concentration of renters in the state by a wide margin.
It is not the largest share. Laurel, a Sussex County town of 4,395, rents at 60.4 percent, and Dover at 53.1 percent also sits above the city. Wilmington leads on the count, not the proportion, and the difference matters when someone tells you the state’s rental law is written for its biggest city.
Median gross rent here is $1,224. The Delaware figure is $1,401. Wilmington rents a hundred and seventy-seven dollars under the state median, because that $1,401 is set by New Castle County’s suburbs and the Sussex beach resorts rather than by the city they surround. The 2024 Census estimate puts Wilmington at 73,176 residents.
So there are more tenants here than anywhere in Delaware who will one day ask a landlord to make an exception for an animal. And when they go looking for the Delaware statute that covers it, they find a Fair Housing Act with no animals in it.
The chapter that never says the word
The Delaware Fair Housing Act is 6 Del. C. ch. 46. The whole chapter, 119 kilobytes of statutory text, was read for this page and searched. “Animal” does not appear in it. Neither does “pet,” “service animal,” “assistance animal” or “support animal.” Not once, in any of its twenty-one sections.
Read that as an omission and you would conclude Delaware has nothing to say. Read it as drafting and it is the reason the right works at all.
What the legislature wrote instead
6 Del. C. § 4603A(a) sets out what disability discrimination includes:
“(2) A refusal to make reasonable accommodations in rules, policies, practices or services, when such accommodations may be necessary to afford such person equal opportunity to use and enjoy a dwelling”
There is no species in that sentence. No training standard, no breed, no weight, no certificate, no list of qualifying animals. It is a duty about rules — and a no-pets clause is a rule. The accommodation is the exception carved into it.
Then the instruction the General Assembly attached to the whole chapter, § 4601(b):
“This chapter shall be liberally construed to the end that its purposes may be accomplished and all persons may fully enjoy equal rights and access to housing for themselves and their families. Furthermore, in defining the scope or extent of any duty imposed by this chapter, including the duty of reasonable accommodation, higher or more comprehensive obligations established by otherwise applicable federal, state, or local enactments may be considered.”
Two useful things in one sentence. Delaware told readers of this chapter to construe it broadly, and it named the duty of reasonable accommodation while doing so — in a chapter whose operative provisions never name an animal. That is a better starting posture than most states hand a tenant.
The charge that usually comes attached is § 4603(b)(2), which makes it unlawful “to discriminate against any person in the terms, conditions, or privileges of sale or rental of a dwelling” because of disability. Behind both sits the federal Fair Housing Act at 42 U.S.C. § 3604(f)(3)(B), with 24 C.F.R. § 100.204 saying the same thing in regulation.
What a Wilmington landlord still gets to argue
Delaware states the limit twice, which is unusual, and an honest page carries it.
§ 4603(c): nothing requires a dwelling be made available to a person with a disability “whose tenancy would constitute a direct threat to the health or safety of other individuals or whose tenancy would result in substantial physical damage to the property of others.” § 4603A(f) repeats it almost word for word.
Note what kind of test that is. It asks about a tenancy and an animal in front of you — not about a breed, a weight class or an insurance schedule. A landlord who reaches for it has to say what this animal has done or will do.
There is one more provision worth knowing and worth reading carefully. § 4603A(a)(4) makes it discrimination “to make an inquiry to determine whether an applicant for a dwelling … has a disability or to make inquiry as to the nature or severity of a disability of such a person,” with exceptions for inquiries “made of all applicants.” That is a screening rule, aimed at what is asked of people applying for housing. Nothing in the chapter addresses what a housing provider may ask after a tenant has made a request of their own, which is a different posture entirely. No Delaware decision construing the subsection was found, so this page states what it says and stops.
Where a Wilmington complaint goes
The Division of Human and Civil Rights enforces the state Fair Housing Law, and its New Castle County office is in the city, at 820 N. French Street. Its own FAQ answers the first question most people have: “No, there is no fee to file a complaint.”
Two clocks, and they belong to different forums. A complaint to the Division must come “not later than 1 year after an alleged discriminatory housing practice has occurred or terminated, or not later than 1 year after such practice has been discovered or reasonably should have been discovered”, 6 Del. C. § 4610(a)(1)a.1. A private civil action under § 4613 runs two years on the same discovery alternative, and the two-year period does not count time while an administrative proceeding is pending. Missing the first deadline is not the same as losing the claim, and the two numbers are not interchangeable.
What has to be shown when the statute names nothing
Because § 4603A(a)(2) names no animal and no document, the whole question moves onto the showing. The Division publishes what that showing looks like, in its own words:
“Fair housing laws only require housing providers to make accommodations when there is a connection, or ‘nexus,’ between the requested accommodation and the person’s disability”
and on documentation:
“From a health professional or other person who can establish that the person has a disability and explain the nexus between the disability and the accommodation request, unless the disability is apparent to the housing provider.”
The Division says nothing at all about assistance animals (its guidance was read in full and the word never appears), so it is quoted here for what it does say, which is about disability, nexus and the interactive process a provider is expected to engage in.
That is the target. Two findings: a disability, and a connection between it and this animal. A certificate cannot make either. Neither can a registry, and Delaware has none to offer, since the one place the Code says “certified” never says by whom.
Start with someone already treating you. A clinician who has seen you over time makes the better document and charges you nothing extra for it. The friction is real: many practices write no disability findings at all as a matter of policy, and a provider who has met you twice may properly decline to make one. Wilmington is the easiest place in Delaware to find specialist capacity (most of the state’s is in New Castle County), and it is still weeks of waiting for a first appointment.
Where that route is closed, a licensed evaluation is the same examination arranged deliberately: someone licensed in Delaware works out whether a disability exists and whether this animal answers it, then writes the finding or says plainly that they will not. Both endings are real, and a service whose answer is decided before you arrive is selling paper.
Delaware wrote a housing right without ever using the word for the thing you want to keep. What it used instead was a duty and a showing, and the showing is a finding somebody has to make.
What Wilmington Landlords Can and Cannot Do
Cannot ✕
- May not refuse a reasonable accommodation in rules, policies, practices or services where it may be necessary to afford a person with a disability equal opportunity to use and enjoy a dwelling: 6 Del. C. § 4603A(a)(2).
- May not discriminate because of disability in the terms, conditions or privileges of the rental, or in the services and facilities provided with it: 6 Del. C. § 4603(b)(2). This is where a charge attached to a required animal is met.
- May not require a security deposit above one month's rent where the agreement runs a year or more, or on a month-to-month tenancy once it has lasted a year, 25 Del. C. § 5514(a)(2)–(3), and those limits do not apply to furnished units at all, § 5514(a)(4).
- May not inquire whether an applicant for a dwelling has a disability, or as to its nature or severity, except by inquiries made of all applicants alike: 6 Del. C. § 4603A(a)(4).
Can ✓
- May require a pet deposit, capped at one month's rent regardless of the length of the agreement, 25 Del. C. § 5514(i)(2), but that deposit is a separate and additive ceiling from the security deposit, which § 5141(33) defines as "exclusive of a pet deposit."
- Must remit the deposit and provide an itemized list of damages within twenty days of the end of the tenancy; failure to itemize is an acknowledgment that no payment for damages is due, and failure to remit entitles the tenant to double the amount wrongfully withheld, 25 Del. C. § 5514(e)–(g).
- May charge an application fee of no more than the greater of 10 percent of the monthly rent or $50, on pain of double damages, 25 Del. C. § 5514(d).
- May decline where the tenancy would constitute a direct threat to the health or safety of others, or would result in substantial physical damage to the property of others, 6 Del. C. §§ 4603(c) and 4603A(f). The assessment is individualised.
- Is outside the state accommodation duty only in the case 6 Del. C. § 4607(e) describes: a dwelling of no more than four families where the owner occupies one of them. Discriminatory advertising under § 4603(b)(3) remains unlawful even there, and the federal Fair Housing Act runs its own exemptions on its own terms.
How to Get an ESA Letter in Wilmington
Check that you qualify
Answer a short screening about how your condition affects daily life in Wilmington. No diagnosis paperwork needed up front.
About 5 minutes: free
Connect with a licensed professional
You are matched with a provider licensed for Delaware clients who reviews your situation in a telehealth evaluation.
Telehealth evaluation
Complete your evaluation
The professional evaluates whether an emotional support animal alleviates symptoms of a condition recognized in the DSM-5. Honest evaluations, not everyone qualifies.
Most of Our Applicants Qualify
Receive your signed letter
Your letter arrives on the professional's letterhead with their license number: the documentation Delaware landlords may lawfully request.
Typically within days of approval
Send it to your landlord
Submit the letter with a short reasonable-accommodation request. Pet fees, pet deposits, and breed limits no longer apply to your animal in Wilmington.
Protection under FHA + state law
Conditions That Can Qualify for an ESA
There is no fixed government list. A licensed professional evaluates whether an animal alleviates symptoms of a qualifying condition recognized in the DSM-5, commonly:
- Generalized anxiety disorder
- Major depressive disorder
- Post-traumatic stress disorder (PTSD)
- Panic disorder
- Social anxiety disorder
- Obsessive-compulsive disorder (OCD)
- Bipolar disorder
- Attention-deficit/hyperactivity disorder (ADHD)
- Phobias with housing impact
- Chronic stress affecting daily function
Only a licensed professional can determine whether you qualify: beware any site promising instant approval.
Housing Help in Wilmington
city government
City of Wilmington
www.wilmingtonde.gov
local housing authority
Wilmington Housing Authority
whadelaware.org
state civil rights agency
Delaware Division of Human and Civil Rights
humanandcivilrights.delaware.gov
legal aid
Community Legal Aid Society (CLASI), New Castle County office
www.declasi.org
court
Delaware Courts, Landlord/Tenant help
courts.delaware.gov
Nearby City Guides
ESA Letter FAQs for Wilmington, DE
The Delaware Fair Housing Act never mentions animals. Does that mean it does not cover mine?
The opposite. The whole of 6 Del. C. ch. 46 was read for this page and the words animal, pet, service animal, assistance animal and support animal appear nowhere in it. Because § 4603A(a)(2) is phrased around rules, policies, practices and services rather than around species or training, there is no animal test in it for a landlord to argue you fail.
What does the "liberally construed" instruction in § 4601(b) actually do for a request?
It sets the reading posture for the whole chapter, and it names the duty while doing so: the chapter is to be liberally construed, and in defining the scope of any duty it imposes, "including the duty of reasonable accommodation," higher or more comprehensive obligations from federal, state or local enactments may be considered. Most states give a tenant no such sentence to start from.
Wilmington has more renters than anywhere in Delaware. Does that change the law here?
No, and the claim needs care. Wilmington holds 16,450 renting households, 15.1 percent of the state's 108,655, which is the largest count anywhere in Delaware. It is not the highest renter share: Laurel is, at 60.4 percent, with Dover at 53.1 percent above the city's 52.0 percent. Neither figure changes what 6 Del. C. § 4603A(a)(2) requires.
Can a Wilmington landlord refuse because of the animal's breed or size?
Delaware gives the landlord an individualised test, not a category one. § 4603(c) and § 4603A(f) both allow refusal where the tenancy would be a direct threat to the health or safety of others or would cause substantial physical damage to the property of others. Those ask what this animal has done or will do; a blanket breed or weight rule is not that assessment.
May a landlord ask about my disability when I apply for an apartment?
§ 4603A(a)(4) makes it discrimination to ask an applicant for a dwelling whether they have a disability, or about its nature or severity, except for inquiries made of all applicants, such as ability to meet the requirements of tenancy. That subsection is about screening applicants. Nothing retrieved from the chapter addresses what may be asked in response to a request a tenant has already made, and no Delaware decision construing it was found.
Where does a Wilmington fair housing complaint go, and what does it cost?
To the Division of Human and Civil Rights, which has its New Castle County office at 820 N. French Street in Wilmington. The Division's own FAQ says there is no fee to file. A complaint must reach it within one year of the practice, or within one year of when it was discovered or reasonably should have been discovered, under 6 Del. C. § 4610(a)(1)a.1.
Is the one-year deadline the only clock I need to watch?
No, and confusing the two is a common error. One year is the administrative window at the Division. A private civil action under 6 Del. C. § 4613 may be brought within two years of the practice or of its discovery, whichever occurs last, and that two-year period does not count time while an administrative proceeding is pending. Missing the first deadline does not automatically end the claim.
Ready to start? Get your Delaware ESA letter : the short, action-first route.
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