British Land is recognised by our peers and shareholders for achieving the highest international standards for sustainable
design and responsible construction.

At 10 Portman Square, this is demonstrated through
the building's BREEAM 'Excellent' rating and an
Energy Performance Certificate (EPC) rating of 'B'.

The design exceeds energy regulations with efficient heating,
cooling and lighting systems supplemented by ground
source heating pumps as a low-carbon heating and cooling
source in the basement and photovoltaic electricity
generation on the roof.

The building contains a sub-metering system significantly
beyond British Council for Offices (BCO) standard which
enables detailed monitoring of energy and water use,
and therefore accurate billing.

Modern control methods such as photo-electric or dimmer
lighting controls, and central and local time controls for
heating and cooling have also been specified to help tenants
to control and reduce their energy use.

The design also includes safe and secure space for
124 bicycles, and 7 showers.