Strategy for low emission refurbishment, the offices of Meyer hospital. A case study in Florence

The overall objective of this paper is to demonstrate how a holistic approach in refurbishment of existing buildings can provide energy efficient system with the only inclusion of some new, not invasive extension (i.e. a greenhouse). In detail the aims of this work have been to evaluate energy and environmental performances of an old building refurbishment and to obtain significant reductions of primary energy use, CO2 emissions and peak electricity demand. The case study was the refurbishment of Villa Ognissanti, the old part of the Meyer Hospital in Florence, one of the most important paediatric institutions throughout Italy and Europe: the realization of its new headquarters in the old building retrofitted.