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Occupied dwelling type

Definition

Occupied dwelling type classifies all occupied dwellings according to their structure and function.

A dwelling is defined as occupied if it was occupied at midnight on census night, or at any time during the next 12 hours, unless the occupant(s) completed a form at another dwelling during this period.

Related variables

  • Dwelling occupancy status – classifies each dwelling according to whether it is occupied, unoccupied, or under construction.

Where the data comes from

This variable is derived from the office use box, question 4 (dwelling description) and question 5 (number of storeys) on the dwelling form. The office use box is completed by the collector.

How this data is classified

Occupied private dwelling

1 Occupied private dwelling

10 Occupied private dwelling not further defined

1000 Occupied private dwelling not further defined

11 Occupied separate house

1111 Separate house no storey information

1112 Separate house with one storey

1113 Separate house with two or more storeys

12 Two or more flats/units/townhouses/apartments/houses joined together

1211 Two or more flats/units/townhouses/apartments/houses joined together no storey information

1212 Two or more flats/units/townhouses/apartments/houses joined together in a one-storey building

1213 Two or more flats/units/townhouses/apartments/houses joined together in a two- or three storey building

1214 Two or more flats/units/townhouses/apartments/houses joined together in a four- or more storey building 13 Other occupied private dwelling

1311 Dwelling in a motor camp

1312 Mobile dwelling not in a motor camp

1313 Improvised dwelling or shelter

1314 Roofless or rough sleeper

Occupied non-private dwelling

2 Occupied non-private dwelling

20 Occupied non-private dwelling not further defined

2000 Occupied non-private dwelling not further defined

21 Institution

2111 Residential care for older people

2112 Public hospital

2113 Private hospital

2114 Residential and community care facilities

2115 Welfare institution

2116 Educational institution

2117 Religious institution

2118 Prison or penal institution

2119 Defence establishment

2120 Night shelter

22 Other occupied non-private dwelling

2211 Hotel, motel, or guest accommodation

2212 Boarding house

2213 Motor camp/camping ground

2214 Work, construction, or training camp

2215 Youth, school, or scout/guide camp

2216 Communal staff quarters

2217 Commercial vessel

2218 Marae complex

'Occupied private dwelling not further defined' includes baches, cribs, and holiday homes; dwellings joined to businesses or shops; and vague responses that could not be classified as separate or joined private dwellings (eg state house).

Each independent self-care unit, villa, or house within a retirement village is classified as a private dwelling and is included in the appropriate private dwelling category, according to whether it is separate or joined and the number of storeys.

The homes of people who live in a motor camp are classified as private dwellings and are in the 'Dwelling in a motor camp' category.

Rest homes are included in the 'Residential care for older people' category.

'Educational institution' includes non-private dwellings accommodating small groups of tertiary students, as well as traditional halls of residence for tertiary students and other educational institutions such as boarding school hostels.

The night shelter category is solely for night shelters. Other forms of accommodation aimed at people who are housing-deprived such as transitional housing and Salvation Army hostels are classified as welfare institutions.

'Hotel, motel, guest accommodation' includes some dwellings that provide long-term accommodation. Usual residents of these dwellings may include students.

A boarding house is defined as a dwelling that is mainly intended for boarders, has lockable bedrooms that are rented by the room, communal facilities, and can accommodate six or more boarders.

For further information about this classification, refer to the:

For background information on classifications and standards, refer to the Classifications and related statistical standards page.

Subject population

The subject population for this variable are occupied dwellings.

The subject population is the people, families, households, or dwellings to whom the variable applies.

Non-response and data that could not be classified

This variable does not have a not-classifiable category because all occupied dwellings are classified as private or non-private during processing, based on the information provided on the dwelling form by the collector and the respondent.

If no further information is available about what type of private or non-private dwelling it is, then the dwelling is classified as an 'Occupied private dwelling not further defined' or an 'Occupied non-private dwelling not further defined', as appropriate.

  • In 2013, 5.8 percent of private dwellings were classified as 'Private occupied dwelling, not further defined', of which 4.0 percent were substitute records.
  • In 2013, 1.7 percent of non-private dwellings were classified as 'Non-private occupied dwelling, not further defined'. There are no substitute records for non-private dwellings.

How this data is used

Data from this variable is used:

  • to monitor trends and developments in housing and institutional dwellings
  • to plan for the future housing and service needs of the community
  • to monitor dwelling density patterns at a local level
  • to formulate and evaluate housing policy and legislation
  • as an administrative aid for census collectors and processing staff.

Data quality processes

All census data was checked thoroughly during processing and evaluation, to ensure that it met quality standards and is suitable for use. These quality checks included edits.

All data must meet minimum quality standards to make it suitable for use.

Quality level

quality level is assigned to all census variables: foremost, defining, or supplementary.

Occupied dwelling type is a defining variable. Defining variables cover key subject populations that are important for policy development, evaluation, or monitoring. These variables are given second priority in terms of quality, time, and resources across all phases of a census.

Mode of collection impacts – online form compared with paper form

The online forms had built-in editing functionality that directed respondents to the appropriate questions and ensured that their responses were valid. As a result of this, data from online forms may be of higher overall quality than data from paper forms. The significance of this will depend on the particular type of analysis being done. There will always be a mode effect but this cannot be measured. Statistics NZ design and test to minimise the effects of mode for all questions.

There were differences between how the forms were completed online and on paper for this variable:

  • The online form allowed only one response to be selected for the dwelling description and number of storeys questions. If a further response was selected, the response given previously disappeared. Multiple responses to these questions were possible when forms were completed on paper.
  • On the online form a text response in the write-in box for the dwelling description question could only be given if 'Other' was marked. When filling in forms on paper, it was possible to give a text response in the write-in box withut having marked 'Other'.

Quality assessment of data and data quality issues for this variable

Overall quality assessment

Moderate: fit for use – with some data quality issues to be aware of. 2013 Census variable quality rating scale gives more detail.

Issues to note

  • The percentage of private dwellings that are joined is believed to be under-represented because incomplete information resulted in some of these dwellings being classified as 'Occupied private dwelling not further defined'.
  • The number of boarding houses is believed to be an under-count.
  • In 2013, 5.8 percent of private dwellings were classified as 'Private occupied dwelling, not further defined', of which 4.0 percent were substitute records.

Refer to the 2006 Information by variable document for occupied dwelling type for details of quality issues affecting the 2006 data.

For more information on substitute records, refer to the 2013 Census data user guide.

Comparing this data with previous census data

This data is broadly comparable with data from the 2006 and 2001 Censuses.

Changes in the data over this time period may be partly due to changes in the collection, definition, or classification of the data rather than to real change alone.

Changes in the overall number of non-private dwellings, and in certain types of non-private dwellings (eg night shelters, residential and community care facilities), are believed to be partly due to improvements in identifying these dwellings.
There have also been changes in the amount of data classified as 'Not further defined'. This may affect data comparability, depending on the particular analysis being done.

A different classification was used in 2001. Refer to the 2006 Information by Variable document for occupied dwelling type for details of the 2001 classification.

Comparing this data with data from other sources

Census is the only information source that provides comprehensive information for small areas and small populations. However alternative sources of information about this subject are available:

Data from these alternative sources may show differences from census data for several reasons. These could be due to differences in scope, coverage, non-response rates, data being collected at different periods of time, alternative sources being sample surveys and as such subject to sampling errors, or differences in question wordings and method of delivery (self-administered versus interviewer-administered). Data users are advised to familiarise themselves with the strengths and limitations of individual data sources before comparing with census data.

Further information about this data

When using this data, be aware of the following:

  • The numbers of some types of non-private dwellings (eg motor camps, commercial vessels) can fluctuate according to factors such as events at census time or the weather at census time.

Contact our Information Centre for further information about using this variable.

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