Mixed DevelopmentFor a mixed development in London, Hawton Mead worked with an architect, developer and associated team, not merely to meet the local council’s stringent energy requirements, but to reduce energy demand and carbon emissions by a further 20%.

The development was a challenging mix of terraced houses, flats and an office, in a London borough with restrictive carbon emission standards, plus a requirement that at least 20% of energy use must be from renewable sources. Commissioned by architects Turner Associates, Hawton Mead showed how energy demand and carbon emissions could be reduced by as much as 20% below the council’s already stringent requirements, using passive solar design, natural lighting and ventilation, improved insulation and airtightness and reduced thermal bridging, energy-efficient lighting and appliances and highly efficient heating controls and emitters, plus smart meters and a home user guide to influence residents’ behaviour.

We also evaluated a wide range of renewable energy options – biomass boiler, woodburning stove, wind turbines, heat pumps, solar water heating, PV panels and micro-CHP – before arriving at the solution best suited to these properties: PV panels, plus compact units combining an air source heat pump and MHVR together with a hot water tank. This enabled the development to meet the Code for Sustainable Homes level 4, and reduced carbon emissions by an extra 20%.

Hawton Mead’s work included energy assessments, production of energy and sustainability report to support the successful planning application, advising the team on sustainability, introducing them to specialist consultants and suppliers, and bringing them up to speed on energy-saving and renewable technologies.