SEPTEMBER KEY FIGURES

		Sep qtr 17	Jun qtr 17 to Sep qtr 17	Sep qtr 16 to Sep qtr 17
		$m	% change	% change
TREND ESTIMATES(a)
Value of work done
	Building	27 653.9	-0.2	-0.3
	Residential	18 033.2	-0.8	-3.2
	Non-residential	9 611.6	0.7	5.7
	Engineering	21 546.5	1.5	4.9
	Total construction	49 225.6	0.6	2.0
SEASONALLY ADJUSTED ESTIMATES(a)
Value of work done
	Building	27 621.8	-0.4	1.4
	Residential	18 102.4	-0.3	-1.7
	Non-residential	9 519.3	-0.6	7.9
	Engineering	34 241.4	33.0	68.4
	Total construction	61 863.2	15.7	30.1
(a) Reference year for Chain Volume Measures is 2015-16.

Value of construction work done, Chain Volume Measures - Trend estimates

Value of building work done, Chain Volume Measures - Trend estimates

SEPTEMBER KEY POINTS


VALUE OF WORK DONE, CHAIN VOLUME MEASURES

TOTAL CONSTRUCTION

• The trend estimate for total construction work done rose 0.6% in the September quarter 2017.
• The seasonally adjusted estimate for total construction work done rose 15.7% to $61,863.2m in the September quarter.

BUILDING WORK DONE

• The trend estimate for total building work done fell 0.2% in the September quarter.
• The trend estimate for non-residential building work rose 0.7% and residential building work fell 0.8%.
• The seasonally adjusted estimate of total building work done fell 0.4% to $27,621.8m in the September quarter.

ENGINEERING WORK DONE

• The trend estimate for engineering work done rose 1.5% in the September quarter.
• The seasonally adjusted estimate for engineering work done rose 33.0% to $34,241.4m in the September quarter.

NOTES

FORTHCOMING ISSUES

ISSUE (QUARTER)	Release Date
December 2017	21 February 2018
March 2018	23 May 2018
June 2018	22 August 2018
September 2018	28 November 2018

ABOUT THIS ISSUE

This publication provides an early indication of trends in building and engineering construction activity. The data are estimates based on a response rate of approximately 85% of the value of both building and engineering work done during the quarter. More comprehensive and updated results will be released in Engineering Construction Activity, Australia (cat. no. 8762.0) on 17 January 2018 and in Building Activity, Australia (cat.no. 8752.0) on 17 January 2018.


CHANGES IN THIS ISSUE

A new base year, 2015-16, has been introduced in the chain volume estimates resulting in revisions to growth rates in subsequent periods. In addition, the chain volume estimates have been re-referenced to 2015-16, preserving additivity in the quarters after the reference year. Re-referencing affects the levels of, but not the movements in, chain volume estimates. For further information, see the explanatory notes.


DATA NOTES

Trend estimates should be used with caution due to the volatility caused by large engineering projects. For more details on trend estimates, please see paragraphs 24 to 26 of the explanatory notes.

Mining projects tend to be complex in structure and comprise a number of different investment activities including exploration, engineering construction, plant and equipment and buildings. A feature article released in the March 2012 issue of Private New Capital Expenditure and Expected Expenditure, Australia (cat. no. 5625.0) provides a summary of the conceptual basis of the relevant ABS publications that measure investment in Australia, using a hypothetical mining project to illustrate how this investment is reflected in ABS data.


INQUIRIES

For further information about these and related statistics, contact the National Information and Referral Service on 1300 135 070.