CIBSE’s Retrofit Project of the Year – UCL, 22 Gordon Street

The CIBSE award-winning retrofit of 22 Gordon Street has saved University College London £110,000 in annual bills. Andy Pearson looks at how BuroHappold Engineering used thermal mass in the original structure to minimise energy use and how researchers helped identify comfort issues

CIBSE’s Building Performance Champion – The Engine Shed

The Engine Shed in Scotland was named Building Performance Champion because sustainability was embedded at every stage of the project, from the briefing workshop to building aftercare. Andy Pearson speaks to Max Fordham about the design process behind the exemplar scheme

On the right track: services retrofit saves TfL’s Palestra £400,000

Like most large offices, TfL’s Palestra building is complex. To realise its true potential, it underwent significant interventions resulting in £400,000 of energy savings. Andy Pearson explains how an energy performance contract made the building 6% better than good practice

Heat spring’s eternal: The Bath Abbey heating plan inspired by Romans

An ambitious project is under way to replace Bath Abbey’s 150-year-old heating system with low-energy underfloor heating, using heat recovered from hot springs rising in the nearby Roman Baths. BuroHappold Engineering’s Neil Francis describes the challenges encountered at the Unesco World Heritage city site

National Gallery of Ireland’s hidden services

Refurbishment of the National Gallery of Ireland required tight environmental control in the galleries, but there was minimal space to make this happen, writes Chris Croly

Film noir: Avoiding sky glow in the South Downs

Lights, curtain calls and lofty ambitions were thrown into the spotlight when an old brewery was converted into a cinema in Sussex– but awards soon followed, writes Daniel Howes

How a National Trust blog inspired a low-carbon network

A network of companies and not-for-profit organisations has is slashing energy bills by sharing ideas and innovation. Andy Pearson looks at how a blog on heating historic buildings turned into the Fit for the Future forum