Tables: Indicative economics for case study buildings

Building type	Benchmark building capital cost $/m2	ESD building capital cost $/m2	ESD building premium (saving) $/m2	ESD building premium (saving) %	Annual energy cost savings $/m2	Annual water cost savings $/m2	Total annual cost savings $/m2	Simple payback (years)	20-year NPV for ESD measures $/m2
University	2300	2000	-300	-15.0	6.3	0.0	6.3	N/A	-338

Building type	Benchmark building capital cost $/m2	ESD building capital cost $/m2	ESD building premium (saving) $/m2	ESD building premium (saving) %	Annual energy cost savings $/m2	Annual water cost savings $/m2	Total annual cost savings $/m2	Simple payback (years)	20-year NPV for ESD measures $/m2
Library	2384	2494	110	4.9	7.5	0.0	7.5	14.67	32

Building type	Benchmark building capital cost $/m2	ESD building capital cost $/m2	ESD building premium (saving) $/m2	ESD building premium (saving) %	Annual energy cost savings $/m2	Annual water cost savings $/m2	Total annual cost savings $/m2	Simple payback (years)	20-year NPV for ESD measures $/m2
Secondary school	2430	2570	140	5.7	7.5	0.6	8.1	17.3	41

Building type	Benchmark building capital cost $/m2	ESD building capital cost $/m2	ESD building premium (saving) $/m2	ESD building premium (saving) %	Annual energy cost savings $/m2	Annual water cost savings $/m2	Total annual cost savings $/m2	Simple payback (years)	20-year NPV for ESD measures $/m2
Hospital	2400	2435	35	1.5	9.5	1.0	10.5	3.33	-72