'Re-using and adapting a building for a low carbon future' - Millennium Bridge House features in New Steel Construction

ISG’s Millennium Bridge House project in London was featured in the New Steel Construction’s April issue. The 1980’s-built City of London office block is being redeveloped and enlarged with structural steelwork forming a south elevation overlooking the River Thames and a new rooftop public amenity.

The article shines light on the trend of refurbishing and enlarging existing city centre office blocks. While discussing how retaining parts of the existing built environment can result in carbon savings and reducing disruptions to small, narrow and busy thoroughfares. 

Now known as One Millennium Bridge, the concrete-framed commercial block is being transformed into a low carbon mixed-use scheme, which comprises the full regeneration of the five-storey building in its entirety. A partial demolition programme has been undertaken, however over 60% of the original structure has been retained. 

The front of the south elevation of the building is created with a series of two-storey high feature upside-down L-shaped steel columns that also form a sheltered overhang along the riverside walkway, while supporting the building above.

The overall development also includes an additional sixth floor and a rejuvenated rooftop with Blue roof areas; providing a sustainable urban drainage system as well as extensive green roof areas. An all-electric solution that maximises the area available for a publicly accessible rooftop garden, further encourages biodiversity, attenuates rainwater and reduces the urban heat island 

On completion, this space will offer a publicly accessible terrace and restaurant, maximising urban greening and external amenity space with new views over the Thames.

Find out more about the project