Zoning, an aspect of Administrative law, regulates how property can be used. The relevant government authority for a particular area can restrict the purposes for which land in that area can properly be used. Such zoning restrictions limit a landowner's normal right to use their property in any way they wish.
Commonly encountered uses for which land is zoned are: residential purposes; commercial activities; industrial activities; agriculture; transport; and mixed activities. If land is zoned for one specific type of use, other activities are not permitted within that area, at least not without a special permit.
In the present case, raising chickens is an agricultural activity rather than an industrial one and Ewan would not be allowed to continue to farm chickens in an industrial area. Albert could make a report to the relevant authority (such as a local council) who have the responsibility of enforcing their zoning regulations.