Keeping fit with less energy: Ravelin Sports Centre

Designers behind the Ravelin Sports Centre have crunched its energy-use numbers down to an impressive 87kWh·m-2 per year, less than half that required to achieve a DEC ‘A’ rating. Andy Pearson discovers how an innovative mix of passive and active technologies produced a sector-leading building that won a CIBSE Building Performance Award

Plantroom pioneer: CIBSE Engineer of the Year Phil Draper

Phil Draper has been pioneering heat pump retrofits in commercial buildings since 2012 and has now been recognised as CIBSE’s Engineer of the Year. Andy Pearson finds out what the industry can learn from his innovative and collaborative approach

Science in the city: the challenge of retrofitting labs

Empty retail space in the UK is attracting the attention of the booming life sciences sector. Cundall’s Rob van Zyl looks at the trend for retrofitting laboratories and, in particular, the challenge of ventilating them in built-up areas

Luxury awaits: turning the Old War Office into an upmarket hotel

Transforming the 1,000-room Old War Office building in London into a luxurious Raffles hotel has been a momentous project for Aecom engineers. Andy Pearson discovers how an extensive services refit was in keeping with the magnificence of the makeover

Boxing clever: retrofits in Ireland

With Dublin planners now requiring that building re-use is considered over demolition, innovative office retrofits will soon become the norm. Andy Pearson looks at two: Tom Johnson House and the Tropical Fruit Warehouse

The big picture: embodied energy at 100 Gray’s Inn Road

With a new development at 100 Gray’s Inn Road, in central London, set to become the UK’s largest full-timber, net zero carbon office building, Phil Lattimore finds out how the building’s whole life-cycle carbon impact has been assessed