Complex sentence: Work on creating BREEAM began at the BRE (based in Watford, England, UK) in 1988, and the first version for assessing new office buildings was launched in 1990.
Split into simpler sentences: Work on creating BREEAM began at the Building Research Establishment (based in Watford, England, UK) in 1988. The first version for assessing new office buildings was launched in 1990.