Enviroblock concrete blocks supplied to a ground breaking Carbon Neutral Business Zone (CaNeBuZo) development.



The Carbon Neutral Business Zone (CaNeBuZo) near Spalding in Lincolnshire, is a ground breaking development which aims to prove that commercially viable buildings can be created with today's technology to meet the aspirations of Level 6 of the UK's Code for Sustainable Homes - a standard which will not be mandatory for commercial buildings until 2019.

Designed by architect Dr. Jeremy Harrall from SEArch Architects, the £1,300,000 CaNeBuZo development includes office buildings, an eco cafe, classroom and demonstration eco house. The architect wanted to prove the potential of thermal mass buildings by designing the UK's first truly zero carbon business park and show how they require no heating, eliminating associated CO2 emissions.


Aggregate Industries supplied Enviroblock to the scheme which contains a minimum 80% recycled/secondary aggregate. The blocks helped SEArch to achieve their carbon emission targets as the raw materials are selected specifically for their environmental performance while complying to all European and UK technical standards.

Enviroblock was chosen for its generic BRE A rating which will assist in attaining high BREEAM scores. Additionally, as part of Aggregate Industries, Masterblock is certified as a Responsible Source supplier under the BES 6001 framework developed by BRE (Building Research Establishment).

More concrete, less carbon

SEArch actively proffers the use of concrete in buildings as having a positive environmental benefit; it does this with the benefit of evidence-based research. 9 Hoddins Way (one of the office buildings) has contributed some of that evidence. It’s a superinsulated high thermal mass building, designed using a passive solar strategy and has reduced its heating loads with concomitant carbon dioxide emissions. Viewing such buildings as reservoirs of heat energy with an active thermal core assists in understanding how to use concrete for positive environmental benefit.

Project details

  • SEArch Architects Ltd

  • SEArch Architects Ltd

    • The UK's first truly zero carbon neutral business park
    • Structural concrete blocks with 80% non-primary material content
    • BRE A-rated Enviroblock used
    • Up to 98% carbon reduction in occupation
    • 80% reduction in running costs
    • 75% reduction in energy consumption