The funds would be used for developments, which could include buying the Australian Technology Park in Redfern, Sydney. Mirvac was announced as one of the five potential bidders.

UrbanGrowth, the property arm of the NSW government, is selling ATP.

Agents said the technology park was worth about $200 million.

In the latest tranche, which raised $293 million, the largest sales were two office towers at 210 and 220 George Street, Sydney, to the Goldman Sachs-backed Anton Capital, run by Anthony Kingsley and Tony Martin.

The properties adjoin the under-construction site at 200 George Street, jointly owned by Mirvac and AMP Capital. It will be Mirvac's new home when it relocates from 60 Margaret Street.

Last month, Mirvac sold its 54 Marcus Clarke Street and 60 Marcus Clarke Street offices in Canberra to the Centuria Metropolitan REIT for $49.1 million and $14.2 million, respectively.

Private group Altis Property, which is also on the ATP shortlist, bought a property at 191-197 Salmon Street, Port Melbourne, for more than $85 million. The three-level office building is the GM Holden headquarters.

In Queensland, the real estate arm of Queensland Investment Corporation has bought Hinkler Central in Bundaberg for about $110 million, while 360 Capital has bought the City Central Plaza in Rockhampton for about $48 million to seed a new unlisted fund.

The five office assets were sold at an 11.1 per cent premium to previous book value while the two retail assets were sold at a 10.7 per cent premium to previous book value.

Mirvac chief executive Susan Lloyd-Hurwitz has said that the group is targeting about $200 million to $400 million of asset sales in the 2015 financial year.

"This further improves the quality of the investment portfolio following a number of acquisitions and divestments over the past 24 months," Ms Lloyd-Hurwitz said.

The deals and Mirvac's exposure to the booming residential market have led Citi analysts to upgrade the stock to a "buy" rating.

"We think concerns surrounding macro-prudential policy are valid, but unlikely to significantly slow developer sales. Moves to curtail investor activity are likely to impact the established market more than new development," the Citi report says.

"Similarly, we think house prices, while elevated, are unlikely to pull back in the near term, limiting the risk of a correction in the market. We are attracted to the high degree of visibility in Mirvac's future development earnings and think the stock looks attractive at current levels. Hence, we upgrade to buy."