NHBC Foundation Research
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Learn moreFuture homes will be designed to higher standards of insulation with greater wall thicknesses. Heating will be from a low carbon source such as a heat pump and designed to work efficiently, the radiators will also be bigger and deeper, projecting further into the living space. To provide hot water efficiently from the heat pump a larger hot water cylinder will be needed (250L-300L). The future home may also have a battery store and equipment to manage the electricity generated by Photovoltaic (PV) panels.
The ground floor layout of the home has to accommodate many ‘functional’ requirements including adequate circulation and an accessible WC and if the water cylinder is also located on the ground floor, there will be further encroachment on the living space.
When working with current space standards (the Nationally Described Space Standards) designers and housebuilders will be aware of the challenge of trying to accommodate useable ground floor living space within an economical and energy efficient footprint. To provide everything that will be needed in the future home it is likely that ground floors plans will need to increase in area.
However, a home that has a ground floor area that is different from the floors above will create compromises in thermal performance, increasing the form factor and introducing inefficiencies in the detailing and continuity of insulation (see also NHBC NF72 The Challenge of Shape and Form).
When other aspects are considered, for instance the increasing likelihood of space required for home working, it is unlikely that commonly used house types will accommodate all of these changes. Together with the technological challenges on the horizon there will be spatial, house planning, and site layout design challenges.
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