Series
Dwelling and Household Estimates
en-NZDwelling Estimates Private Dwelling Estimates Household Estimates Estimated Dwellings Estimated Private Dwellings Estimated Households Occupied Permanent Private Dwelling Estimates
en-NZStatistics New Zealand
en-NZStats NZ 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, 2006, 2013, and 2018 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.
Dwelling estimates are currently on a 2018-base while household estimates remain on a 2013-base. Household estimates will be rebased and revised after the 2018-base estimated resident population is published.
en-NZThe 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 .
en-NZUse 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 nine 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 observed between the 1991 and 2018 Censuses.
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.
- Statistics New Zealand – National Accounts
- Market research companies (eg AC Nielsen)
- Consultants
- Researchers
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.
2019
Dwelling estimates 2013–18 revised based on enumerated dwelling counts and tenure proportions from the 2018 Census of Population and Dwellings. Interim revision of household estimates incorporating tenure proportions from the 2018 Census of Population and Dwellings.
2021
Household estimates 2013–18 revised based on estimated household 2018-base (30 June 2018) and tenure proportions from the 2018 Census of Population and Dwellings.
3 Quarterly