The former Dublin HQ of ex-Taoiseach Bertie Ahern has been sold for €180,000 above the asking price.
Fianna Fail's National Executive confirmed that it had approved the sale of St Luke's in Drumcondra.
The sale, for €774,000, was approved at a meeting of the party's executive last night.
Mr Ahern's one-time north city stronghold had been put on the market by Fianna Fail with an asking price of €595,000 last March.
"Yes, we agreed the sale of 161 Lower Drumcondra Road at our meeting," said one senior source.
The Drumcondra offices were the former Taoiseach's HQ for most of his political career.
It formed a key part of the Mahon Tribunal's investigations into planning matters and payments in 2008.
All aspects of the sale are being handled by Lisney Estate Agents.
The online ad for the property, which is 1,900 square foot in size, set the price at €595,000 for the iconic building constructed in the 1930s, and said the premises was a "prominent detached property" and "suitable for a variety of uses".
It has a private garden to the rear with secure off-street parking accessed from Cian Park.
It is set out in office space, with a kitchen and living accommodation on the top floor.
The building was bought in January 1988 for £56,000 by a trust of Mr Ahern's closest associates - including Des Richardson, Joe Burke and Tim Collins - which was dubbed the 'Drumcondra mafia'.
It was turned into a constituency office, with an apartment overhead, where Mr Ahern occasionally lived.
It has been mired in controversy, with Mr Ahern admitting during questioning at the Mahon Tribunal that he kept large amounts of cash in it at a time when he did not hold a bank account. The trust who bought the property had initially attempted to resist efforts to hand over the house to Fianna Fail before releasing ownership in 2012.