Dwelling and Household Estimates

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Abstract

Statistics New Zealand currently derives estimates of private dwellings and households at the national level. No subnational dwelling or household estimates are available, apart from the subnational household estimates at 30 June 1996, 2001 and 2006 derived for subnational family and household projections. Estimated private dwellings is a measure of the private dwelling stock in New Zealand and includes occupied and unoccupied dwellings. Estimated households is a measure of the number of households usually living in private dwellings in New Zealand.

Purpose

The Dwelling and Household estimates are used for many purposes including planning, policy formation, business decisions, and as 'bottom lines' in the calculation of market coverage rates .

Citation Information

Title

Dwelling and Household Estimates

Alternate Title

Dwelling Estimates Private Dwelling Estimates Household Estimates Estimated Dwellings Estimated Private Dwellings Estimated Households Occupied Permanent Private Dwelling Estimates

Creator

Population Statistics Unit

Publisher

Statistics New Zealand

Rights

Statistics New Zealand

Series Information

Series Name

Dwelling and Household Estimates

Abbreviations

Est Dwell
Est HH

Description

Statistics New Zealand currently derives estimates of private dwellings and households at the national level. No subnational dwelling or household estimates are available, apart from the subnational household estimates at 30 June 1996, 2001 and 2006 derived for subnational family and household projections. Estimated private dwellings is a measure of the private dwelling stock in New Zealand and includes occupied and unoccupied dwellings. Estimated households is a measure of the number of households usually living in private dwellings in New Zealand.

Coverage Information

Temporal Coverage

  • 31/03/1961 to present

Topical Coverage

  • Population
  • Households
  • Dwellings

Publication

Usage and limitations of the data

Use of estimates

The estimates are used for many purposes including planning, policy formation, business decisions, and as 'bottom lines' in the calculation of market coverage or penetration rates, for example.

Limitations of estimates

The accuracy of the estimates depends on the accuracy of both the estimated base and estimated quarterly change in numbers.

The accuracy of the base is dependent on the accuracy of the census and the estimated adjustments made to the base.

The estimated quarterly change in numbers is based on the building consents (lagged six months to allow for completion) multiplied by a weighting factor. The weighting factor is a net adjustment factor to allow for building consents not fulfilled, new dwellings not registered, and other changes in the nature of the dwelling. There is no information on how this weighting factor may vary between quarters, so it is kept constant during each intercensal period. The latest estimates use the weighting factor derived for the latest available intercensal period.

The accuracy of the estimates by tenure depends on the accuracy of both the estimates and estimated tenure proportions applied to those estimates. Tenure is influenced by a number of factors: lifestyle, investment, economy, interest rates, patterns of family and household formation, job security, stage in life-cycle, cohort effects and population ageing, income and wealth distribution, social security and income support. Given the uncertainty of how these various factors inter-relate and in future trends in tenure, the latest estimates use the tenure proportions from the latest available census.

Household estimates are not directly comparable with census counts. Census counts give a snapshot of the population at that time but make no allowance for net census undercount or households temporarily elsewhere in New Zealand or temporarily overseas.

Main users of the data

  • Statistics New Zealand – National Accounts
  • Market research companies (eg AC Nielsen)
  • Consultants
  • Researchers

Significant events impacting this study series

1996

First post-enumeration survey held in New Zealand following the 1996 Census of Population and Dwellings.

1997

Revision of the dwelling estimates 1991–96, based on the results from the 1996 Census.

1998

The base for the dwelling estimates included, for the first time, adjustments for:

  • the estimated net census undercount of occupied permanent private dwellings
  • the estimated number of households temporarily absent overseas.

Dwellings occupied solely by overseas residents were excluded.

1998

Second revision of the dwelling estimates 1991–1997. This revision was required due to the published figure for unoccupied permanent private dwelling in 1996 Census, Population and Dwelling Statistics being incorrect.

The figure for unoccupied permanent private dwellings was overstated by about 10,000. This caused the figure for total permanent private dwellings to be also overstated by about 10,000.

2001

Second Post-enumeration Survey carried out in New Zealand following the 2001 Census of Population and Dwellings.

2002

Interim revision of the 1996–2002 dwelling estimates incorporating tenure proportions from the 2001 Census.

2003

The 2001-base Family and Household Projections derived base household estimates at 30 June 1991, 1996 and 2001.

2004

The estimated households derived for 2001-base Family and Household Projections is adopted by Statistics New Zealand for quarterly household estimates series.

2009

The estimated households derived for 2006-base Family and Household Projections is adopted by Statistics New Zealand for quarterly household estimates series. The estimated households 2001-base were revised.

Dwelling estimates from 2001 to 2008 revised based on tenure from the 2006 Census. Household estimates from 1996 to 2008 revised based on tenure from the 2006 Census and the revised estimate of the number of households at 30 June 2001.

2014

Dwelling estimates 2006–13 revised based on enumerated dwelling counts and tenure proportions from the 2013 Census of Population and Dwellings. Interim revision of household estimates incorporating tenure proportions from the 2013 Census of Population and Dwellings.

2015

Household estimates 2006–14 revised based on estimated household 2013-base (30 June 2013) and tenure proportions from the 2013 Census of Population and Dwellings.

Frequency

3 Quarterly

Revision Information

Currently viewing revision 43 by on 16/06/2015 7:53:30 p.m.

Revision 49
20/10/2016 3:17:21 a.m.
Revision 45
6/07/2016 2:11:35 a.m.
Revision 43 *
16/06/2015 8:49:58 p.m.

Identifiers

DDI Agency
nz.govt.stats
DDI Id
25baddf1-766b-423a-8a5a-c8f9de8a1d57
DDI Version
43

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