A much-trumpeted state government crackdown on property developers on councils has been described as unenforceable after a councillor was able to declare he was not a developer, despite running a company that had made nearly 100 development applications in three years.

Weeks before declaring he was not a developer on nomination forms for council elections, Fairfield Liberal Peter Grippaudo (also known as Fowler) lodged plans to develop Grippaudo Glade, a private street with five accompanying homes in Minchinbury.

Peter Grippaudo is the CEO of Fowler Homes.

Fairfax Media can reveal that Fowler Homes, a company of which Cr Grippaudo is chief executive and jointly owns with his wife, has lodged more than 90 other recent development applications.

Councillors have been required to declare if they are developers since September, as part of reforms to "restore community confidence" in local government with measures such as forcing developer-councillors to disclose their income sources.