Where a forfeiture imposed by statute shall be incurred it may be recovered in a civil action unless the act or omission is punishable by fine and imprisonment or by fine or imprisonment. The word forfeiture, as used in this chapter, includes any penalty, in money or goods.
Wis. Stat. § 778.01
For a forfeiture action to accrue against a nonresident owner of a building that is in violation of the state building code, the violator should receive notice of the violations. Notice need not be actual, but must be reasonably calculated to inform the building owner with respect to the violation. State v. James, 47 Wis. 2d 600, 177 N.W.2d 864 (1970). The definition of forfeiture in this section applies only to ch. 288 [now ch. 778]. State v. Mando Enterprises, Inc. 56 Wis. 2d 801, 203 N.W.2d 64 (1973). This section does not preclude prosecution under a statute punishable only by forfeiture in the same action with criminal charges. State v. Johnston, 184 Wis. 2d 794, 518 N.W.2d 759 (1994). A judgment for payment of a forfeiture can be docketed, accumulates interest, and may be enforced through collection remedies available in other civil proceedings. OAG 2-95.