Wis. Stat. § 236.335

No lot or parcel in a recorded plat may be divided, or used if so divided, for purposes of sale or building development if the resulting lots or parcels do not conform to this chapter, to any applicable ordinance of the approving authority or to the rules of the department of safety and professional services under s. 236.13. Any person making or causing such a division to be made shall forfeit not less than $100 nor more than $500 to the approving authority, or to the state if there is a violation of this chapter or the rules of the department of safety and professional services.