The restoration of a historic factory and the transformation of a former school into a restaurant complex have won an annual award.
The award is handed out annually to what the society deems the most successful conservation project such as the restoration of a derelict building, park or structure or the conversion of a redundant and neglected building.
The Birmingham Conservation Trust carried out a wholesale renovation and restoration project at the Grade II, former Newman Brothers Coffin Works in Fleet Street which closed in 1999 and reopened last autumn.
The judging panel said the project unlocked the fascinating history and industrial heritage of the building and also demonstrated the key role the city played during the Industrial Revolution.
Simon Buteux, director of Birmingham Conversation Trust, said: "It took more than ten years to raise the funding to restore Newman Brothers coffin fittings works, with many ups and downs.
"Recognition from Birmingham Civic Society means so much to our staff and many volunteers and has made all the effort worthwhile."
EDG Properties was praised for "fully embracing" the heritage of the original School Yard building and its Grade II-listed clock tower while creatively bringing them back into modern and vibrant uses.
Judges said the bars and restaurants which had taken space at the development had "enlivened Harborne High Street and given it a new lease of life".
Phase 2 of the development involves the construction of a new residential building to the rear of the school and is scheduled for completion in May 2016.
Neil Edginton, founder of EDG Properties and who worked on the development of The Cube, added: "Saving and bringing new life to this listed building has already been a catalyst for change in Harborne and we are delighted our work has been recognised by the prestigious Civic Society Renaissance Award.
"The recognition really does mean a lot as it's awards like this that bring the whole project team together to celebrate everyone's efforts."