Chris Eaton, Good Homes Alliance
Building type, sector and stage
Domestic new build, post construction, in-use monitoring, South East, Brighton
Keywords Affordable housing, biomass, photovoltaic panels (PV), MVHR, efficient building fabric, thermal mass
One Brighton is a mixed-use development designed by Feliden Clegg Bradley studios comprising 172 residential units, office space and 929 m2 of community space. It was designed in accordance with the 10 One Planet Living Principles.
The building is constructed from a low carbon concrete frame with 50% cement replacement and 100% recycled aggregate concrete and is in-filled with honeycomb clay block walls and wood fibre insulation. The highly insulated building fabric has led to a tested Heat Loss Parameter (HLP) of 0.86 W/m2/K.
Heating and hot water has been supplied by a 500kW communal biomass boiler and a 9.5kWp PV roof mounted array supplies. These systems are managed by a community Energy Services Company (ESCo). Heat is supplied to each residential unit through a heating coil in each homes Mechanical Ventilation system, the ventilation system also contains an element of heat recovery.
The TSB BPE in-use monitoring is being carried out on residential units only. 5 dwellings are undergoing detailed monitoring of energy use and internal comfort conditions. UCL, who installed the monitoring equipment and are carrying out much of the analysis have found some interesting variations in the amount and proportions of different energy uses between the 5 apartments.
Monitoring is ongoing and will continue for a full 2 year period. Once complete detailed analysis will be carried out and findings collected and disseminated.
Key Performance Indicators
Air tightness: 4.5 m3/hr/m2 @ 50Pa average
SAP rating: 85 (B) average