Iris Robinson has resigned as an MP, assembly member and councillor
Iris Robinson lobbied for three planning applications on behalf of two developers who each provided £25,000 to help set up her ex-lover in business.
In the past six years, she spoke on behalf of two applications from Ken Campbell and one from Fred Fraser.
Environment Minister Edwin Poots confirmed the details in the Assembly.
The DUP minister said his list was not definitive, as a company search and manual trawl of the records would cost a "disproportionate" amount.
He was responding to a question tabled by Sinn Fein assembly member Daithi McKay.
The planning applications listed by Mr Poots were for sites in Comber and Newtownards, both in former DUP MP Mrs Robinson's Strangford constituency.
Ken Campbell loaned Kirk McCambley £25,000
Mrs Robinson has resigned her three political positions as an MP, MLA and councillor.
Earlier this month, the BBC's Spotlight programme revealed details of Mrs Robinson's financial and personal relationship with Kirk McCambley.
The programme reported that Mrs Robinson sought to provide Mr McCambley with capital to open his business, the Lock Keeper's Inn cafe in south Belfast.
Mrs Robinson obtained a total of £50,000 from two developers, Fred Fraser, now deceased, and Ken Campbell to fund the project.
She kept £5,000 for her herself and then, when their relationship ended, she demanded Mr McCambley pay the money back.
Mr Campbell has said he contributed between £4,000 and £5,000 to the DUP several years ago.
He said he had never personally donated any money to Mrs Robinson or her DUP leader husband Peter Robinson.