Aldermans House, London
Following an initial period of enabling, an extensive archaeological dig, retaining two facades on three floors to two buildings on Bishopsgate and Liverpool Street, a new nine storey Cat A 65,000 sq. ft. multi tenanted office has changed the London sky line. Aldermans House is part of Lord Sugar’s Amsprop property business and has been recreated on the street corner rising to an elliptical shape to maximise rights of light to the adjacent buildings. The building has been designed to very stringent planning conditions that dictated the shape and envelope.
The key challenge for us was to ensure the design of the building services achieved a carbon saving of 11% over the Part L 2010 compliant baseline. The total carbon savings are achieved primarily through lean energy efficient measures saving a total of 7.1% and a further 4.0% through the introduction of PV panels on the roof. The building achieved BREEAM ‘Excellent’ and the services solutions comprise of an energy efficient variable refrigerant heating and cooling system complete with full heat recovery capabilities. A number of ceiling mounted fan coil units have been located within a planked ceiling arrangement. Fresh air is through a central ventilation unit complete with heat recovery and inline heat pump unit to minimise the requirement of supplementary heating to the fresh air supply. A number of crane lifts were carried out during the construction phase to install the plant in the basement using the lift shafts and lifting on to the intermediate floors whilst the construction of the building continued at pace around the installed plant.
The incoming electrical mains terminate into a new mains panel that is generator backed and also has the PV supply connected to. From the mains panel, a series of distribution boards are provided on every floor allowing the floors to be fitted out by the individual needs of each tenant. An office LED lighting scheme has been incorporated throughout and includes battery backed emergency lighting and exit signs. Further electrical services include lightning protection, fire alarm, accessible toilet alarms, disabled refuge alarms, CCTV, access control and containment for a structured cabling system.