Axima Building Services Ltd have provided the mechanical services installation for a most unusual office development built alongside Tower Bridge in London. It is part of a whole complex of buildings currently being build near the Tower Bridge. The building will be occupied by the Greater London Authority (GLA) and is where the Mayor of London will reside. This development was designed by leading International Architects Foster & Partners, and is one of the most energy efficient buildings in London. For example, the heating and energy load is equal to only one quarter of the energy consumed by a conventional air-conditioned office of similar size. The new headquarters for the Greater London Authority was carefully designed to reduce the area exposed to the sun, in order to minimise consumption of cooling energy. The lower floors are stepped inwards to provide natural shade for the offices below, reducing solar gain in the summer and heat loss in the winter.

Therefore, in some ways, this was an unusual project for Axima Building Services Ltd, which was awarded a £2 million contract by the constructiion manager, Mace, to install heating, air conditioning and other services. For example, there are no chillers: the air conditioning system uses ground water, pumped up through two boreholes, directly from the cold water table below London.

The design by Foster & Partners recognises that a sphere has 25% less surface area than a cube of the same volume. So it provides 21,700 sq m (2,000 m²) of accommodation on ten levels for Greater London's mayor, Ken Livingstone and his 400 staff, mainly in open plan. They occupy floors three to eight, while the ninth floor provides an assembly chamber, six committee rooms and offices for assembly members. The top floor is a flexible public space, dubbed "London's Living Room" by the GLA, which can be used for exhibitions or for functions for up to 200 people. The ground, lower ground and first floors are given over to public areas for a cafeteria, display space, library and so on. Circulation is by lifts and gentle ramps, so the disabled also have easy access.

Outside is a piazza, equivalent in size to Trafalgar Square and Leicester Square, landscaped with seating, trees, a cafe and water features.

Overall this exciting new building provides a worthy modern partner to the Tower of London, which it faces across The Thames, alongside Tower Bridge. The Mayor of London, Ken Livingstone, described it as "one of the most spectacular examples of architecture to be seen in the capital for years". Her Majesty Queen Elizabeth II officially opened the new building in July 2002 as part of her Jubilee Year.