REGAIN Building


The project, in short

Funded as part of an Interreg IVB EU demonstration project encouraging low energy and sustainable design in industrial buildings, the Blaenau Gwent REGAIN building is a 500m2 business incubator unit situated in a large redevelopment project on the site of the former Ebbw Vale steelworks.

A number of low carbon technologies were explored during the design stage of this building together with high performance and sustainable construction materials. Design decisions were informed at each stage by the output of a range of prediction tools, providing a parametric style sensitivity analysis.

The resulting building has a very high performance envelope, with very good natural lighting conditions together with low predicted energy consumption and low embodied energy utilising many locally sourced materials. This performance has been achieved without the use of sophisticated systems with high embodied energy, and unnecessary operational and maintenance complexities, and also without compromising design.


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Project name REGAIN Building
Type (new/renovation) New
Designer(s) James Allen, Blaenau Gwent Borough Council
Owner(s) Blaenau Gwent Borough Council
Developer(s) Blaenau Gwent Borough Council
Year of construction 2011
Address, Country Ebbw Vales, Wales, UK
Building life span 60 years
Heating-degree days 2390 (base 15.5 C)
Cooling-degree days 129 (base 15.5 C)
Project gross area above ground [m²] 500
Project gross area (including below ground) [m²] 500
Site area [m²] 2464
Stories (above grade) 1
Occupancy type(s) Speculative business starter units
Typical building population 35
Number of operating hours / year 2266
Assessment phase Design
Assessment tool SBTool, BREEAM, EPC
(Target) rating 3.5 (SBTool), Excellent (BREEAM), A rating (Energy Performance Certificate)

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