Total new housing and net new housing
In the year ending June 2016, building consents were issued for 3,630 new dwelling units in Christchurch City. Around half of these were rebuilds (i.e. demolition and subsequent rebuild on the same site). In order to measure changes to the city’s housing stock, it is necessary to focus on net new housing, which excludes replacement housing.
In the year ending 30 June 2016, there was a net 2,280 new dwellings units consented for, which was similar to 2015.
The total number of all residential consents (including rebuilds) peaked in 2015, when there were consents issued for 4,340 new dwellings and units. Around half of these were rebuilds (on the same site) meaning the net amount of new housing added to the city’s stock in 2015 was 2,260 dwellings and units.
In the time series beginning 2001, the highest number of net new housing in the city occurred in the year ending June 2004, when there were 2,350 net new dwelling units added to the city stock. Following this, there was a general decline in the number of net new dwelling units prior to the 2010/11 earthquakes, which reflected the local and global recession.
Following the earthquake series, for the two years ending June 2012, there was the lowest amount of net new housing in the time series while the earthquakes were still active and insurance decisions were taking place. Since July 2012, there has been a large increase in the number of consents for both replacement housing and new housing– a reflection of insurance claims being settled, increased demand for housing, and increased migration.
|Year to June||New Units||New Dwellings||Total New Dwelling Units||Demolitions & Rebuilds (Replacement)||Net New Housing|
Infill vs Greenfield
As a result of the earthquakes, large areas of existing residential land were red-zoned as the land was considered unsuitable for residential purposes (without substantial remediation). The shift towards increased greenfield development post-earthquakes can be explained by the requirement for replacement residential land, and the availability and appeal of greenfield land for development.
Since the 2010/11 earthquakes, there have been more new residential housing consents issued for greenfield sites than for existing infill sites, although this is starting to ease after peaking at nearly 70% in 2013. In the year to June 2016, 60% (1,260) of net new housing was located within greenfield sites, compared with 39% (890) for infill residential sites. A further 20 consents (<1%) were issued in Banks Peninsula.
Area unit location
Five of the top six areas units which have had the highest number of net new housing consents since 2012 include large greenfield areas: Wigram (1,640 consents), Halswell West (940), Prestons (910), Aidanfield (310) and Mairehau North (260). The other area unit in the top six was Avon Loop, located centrally within the Four Avenues, which had 350 net new consents for the four years to June 2016.
For the year ending 30 June 2016, Wigram area unit had the highest net number of consented new housing units at 519, followed by Prestons (325), Halswell West (220), Cathedral Square (100) and Avon Loop (80).