text: A growing body of research evidence is challenging the perception that sustainable buildings are significantly more costly to design and build than those that simply adhere to regulatory requirements. Research by the Sweett Group into projects using BREEAM, for example, demonstrates that sustainable options often add little or no capital cost to a development project. Where such measures do incur additional costs, these can frequently be paid back through lower running expenses, ultimately leading to saving over the life of the building.
  Research studies have also highlighted the enhanced value and quality of sustainable buildings. Achieving the standards required by BREEAM requires careful planning, design, specification and detailing, and a good working relationship between the client and project team—the very qualities that can produce better buildings and better conditions for building users. A survey commissioned by Schneider Electric and undertaken by BSRIA examined the experiences of a wide range of companies that had used BREEAM. The findings included, for example, that 88% think it is a good thing, 96% would use the scheme again and 88% would recommend BREEAM to others.
  The greater efficiency and quality associated with sustainability are also helping to make such building more commercially successful. There is growing evidence, for example, that BREEAM-rated buildings provide increased rates of return for investors, and increased rental rates and sales premiums for developers and owners. A Maastricht University document, published by RICS Research, reported on a study of the effect of BREEAM certification on office buildings in London from 2000–2009. It found, for example, that these buildings achieved a 21% premium on transaction prices and an 18% premium on rents.