Ansonia, Conn., Code of Ordinances ch. 13 § 13-25
Same—Insects, rodents, etc
Operative Text
Every occupant of a dwelling containing a single dwelling unit shall be responsible for the extermination of any insects, rodents or other pests therein or on the premises. Every occupant of a dwelling unit in a dwelling containing more than one dwelling unit shall be responsible for such extermination whenever his dwelling unit is the only one infested. Notwithstanding the foregoing provisions of this section, whenever infestation is caused by failure of the owner to maintain a dwelling in a ratproof or reasonable insectproof condition, extermination shall be the responsibility of the owner. Whenever infestation exists in two or more of the dwelling units in any dwelling, or in the shared or public parts of any dwelling containing two or more dwelling units, extermination thereof shall be the responsibility of the owner. The operator of a rooming house shall be responsible for any exterminations which may be required.
Under Ansonia Code of Ordinances ch. 13, art. I § 13-25, responsibility for pest extermination in a dwelling shifts depending on the type of housing and the source of the infestation. In a single-unit dwelling, the occupant bears responsibility; in a multi-unit building, the occupant is responsible only when their unit is the sole infested one. However, when an infestation spreads to two or more units, affects shared or common areas, or stems from the owner's failure to keep the structure ratproof or reasonably insectproof, the owner becomes responsible. Rooming house operators carry extermination responsibility for their entire premises.
Plain English — not legal advice.
Under § 13-25, property owners and operators of multi-unit dwellings and rooming houses generally maintain their buildings in a ratproof and reasonably insectproof condition to avoid bearing extermination liability. When an infestation is present in two or more units or in common areas, compliant operators arrange and pay for extermination promptly. Owners who allow structural deficiencies—such as gaps, cracks, or unsealed entry points—that contribute to infestation may find that extermination responsibility shifts to them regardless of which unit is affected.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
Section 13-25 of the Ansonia Code of Ordinances gives tenants in multi-unit buildings a clear basis to assert that extermination is the owner's responsibility when more than one unit is infested, when common areas are affected, or when the infestation results from the building's structural condition. Tenants who believe their landlord has failed to meet this obligation may consider documenting the infestation with photographs and written notices to the landlord, and can explore filing a complaint with the appropriate local housing or code enforcement authority. Tenant-rights organizations in Connecticut can help residents understand which enforcement paths are available under this provision.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated November 11, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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