When a subject is researched in the office, a summary document is sometimes produced.

You can download them as a pdf here:


Ground Source Heat Pump

Solar Water Heating

UPVC Windows

Domestic Light Considerations

These obviously reflect only our own opinions on these topics and should be read accordingly.

Other useful links:

Royal Institute of British Architects (RIBA):


Natural Building Technologies
A developer and merchant of sustainable building materials and systems

Earth and Reed
East Anglian stockist of Natural Building Technologies products and other sustainable construction materials

AECB - The sustainable building association
The principal umbrella organisation promoting sustainable construction in the UK

Society for the Protection of Ancient Buildings
The foremost organisation promoting responsible conservation of Britain's historic buildings

A useful site giving general guidance on sustainable construction, and particularly comparing the relative impacts of different materials and systems