Waterloo, IA Property Maintenance: Vacant Lot Maintenance (2026)

Waterloo's weed ordinance in chapter 5, article B treats vacant land differently from developed lots. Section 7-5B-7(C) exempts non-noxious weeds and other growth from the general height limit on properties within the city limits where development has never occurred, but only if the parcel sits at least three hundred feet from the nearest property line of any developed area, so uncontrolled growth on the vacant parcel does not become a hazard or nuisance to the neighbors. The same exceptions section also exempts land zoned agricultural, steep slopes, wooded areas, ravines and lots over three acres in size (subsection F).

Once a vacant or abandoned lot is confirmed to be an excessive nuisance rather than qualifying land under these exceptions, section 7-5B-4(C) lets the code enforcement department put it on a list to be mowed under the city's mowing contract, with the mowing cost assessed against the property's taxes. The same notice-and-abatement process that applies to other weed nuisances under section 7-5B-5 governs enforcement, with unpaid mowing costs collectible the same way as a property tax under section 7-5B-6.