||Green Building Performance
||Benchmarks / Notes
||30 kilowatt- hours/m2/year
||100 kWh/m2/year is considered "efficient" for office buildings.
Normal offices often have much higher than 600 kWh/m2/year.
||Under 50% daylighting is common for many "conventional" office buildings.
(high recycled content leads to very low embodied energy)
|Windows & doors - 85%
Walls - 90%
Timber floors - 25%
(Overall - approx 50%)
|Recycled content not common in "conventional" offices. Values of 20% considered good for sustainable buildings.