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Madison, WI Public Health Rules: Rodent Control (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Single-family default duty
Occupant exterminates pests/rodents
Duty shifts to owner if
Unit unclean at move-in or not rodentproof
Multi-unit buildings
Owner responsible for extermination
Debris definition includes
Rodent harborage and infestation
Severe cases
Building can be placarded unfit

Summary

Madison makes single-family occupants responsible for exterminating pests, vermin, or rodents in their own unit, but shifts that duty to the owner if the unit wasn't clean at move-in or the building isn't rodentproof, under MGO § 27.07(2)(d).

(d)Every occupant of a single-family dwelling shall be responsible for the extermination of any pests, vermin or rodents therein with the following exceptions: when the owner or operator has failed to clean the dwelling prior to occupancy or when the owner or operator is out of compliance with Madison General Ordinances Sec. 27.05(2)(g)2., extermination shall be the responsibility of the owner. Whenever infestation exists in any residential dwelling other than a single-family dwelling, extermination shall be the responsibility of the owner.

Source: Madison Property Maintenance Code Ch. 27View official code

Full Breakdown

Sec. 07(2)(d) fixes responsibility for pest control between owners and occupants of residential buildings. The default rule for a single-family dwelling is that the occupant handles extermination of pests, vermin, or rodents. That default flips to the owner in two situations: when the owner or operator failed to clean the dwelling before the tenant moved in, or when the owner is out of compliance with Sec. ' For any residential dwelling other than a single-family home, duplexes, apartment buildings, lodging houses, the ordinance puts extermination squarely on the owner whenever infestation exists, without the occupant-first default.

The code separately defines the trigger for these duties at Sec. ' The related maintenance duty at Sec. ' The Building Inspection Division of the Department of Planning and Community and Economic Development enforces these duties and can issue compliance orders under Sec. 09; a building found 'vermin infested' to the point of creating a serious health hazard can be designated unfit for human habitation under Sec. 08.

Violations & Fines

Failure to comply with an extermination or debris-removal order from the Building Inspection Division exposes the responsible owner or occupant to a municipal citation under Sec. 27.09's enforcement authority, and a building that is vermin-infested to a degree that creates a serious hazard to occupants or the public can be placarded as unfit for human habitation under Sec. 27.08, requiring the space to be vacated until the condition is corrected.

Frequently Asked Questions

Who is responsible for pest control in a Madison rental home?
In a single-family dwelling, the occupant is responsible for extermination by default under MGO § 27.07(2)(d), unless the landlord failed to clean the unit before move-in or the building isn't rodentproof, in which case the owner is responsible.
Who handles pest control in a Madison apartment building?
The owner. Sec. 27.07(2)(d) makes the owner responsible for extermination whenever infestation exists in any residential dwelling other than a single-family home.
What counts as 'infestation' under Madison's housing code?
Sec. 27.03 defines infestation as 'the sustained presence of pests, vermin, or rodents,' which triggers the extermination duties in Sec. 27.07(2)(d) and the debris-free requirement in Sec. 27.05(2)(c).

Sources & Official References

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