Cook County Animal and Rabies Control said the 43 dogs had everything from fleas, skin issues, missing hair and eye infections.
The owner was allowed to keep one of the dogs but was ordered to seek veterinary care within 48 hours, according to the Cook County Sheriff's Department.
The rest of the dogs were eventually taken to South Suburban Humane Society in Chicago Heights, according to officials.
Foster homes have been found for almost every single one of the dogs, according to officials.
No citations were issued regarding the animals, but the property was deemed dangerous and hazardous by the Cook County Building and Zoning Department Officer.