Monitor area:

Land Use

CWM Determinant:



Key Council Role/s:

Service Provider - Regulatory


Community Plan 2035:

Objective 1.1 Active diverse destinations

Objective 1.3 Great lifestyles


Strategies / chapters:

Land Use Strategy 2008-2013

Integrated Transport Strategy 2008-2013

Trend movement: Indicators:
Number of infill lots

 Number of infill lots   

Ratio of number of lots created in infill to greenfield

 Ratio of the number of lots created in infill to greenfield   


Data source/s:

City of Onkaparinga, Development Policy


Responding to the challenge of population growth requires the introduction of planning policies to ensure efficient and sustainable use of available urban land.  These will achieve a better balance between the development of established urban areas (infill) and previously undeveloped areas (greenfield).

A more diverse range of housing styles as part of transit orientated development and the regeneration of areas experiencing population decline will be a feature.  Medium density residential development will occur in areas that have good access to services, public open space and public transport.  Welcoming, safe and pedestrian friendly streets is a key feature that supports social interaction and community participation. 

Trending data

Number of infill lots

Infill development can be defined as new construction that fills in empty or under-utilised lots in areas that are already established. It usually comprises of small parcels of land for minor subdivisions and includes varying residential densities and dwelling types.

Figure 1: Number of infill residential lots, Onkaparinga, 2005-06 to 2012-13

number of infill residential lots Onkaparinga 2005-06 to 2012-13

Source: City of Onkaparinga, Development Policy Section


The number of new infill residential lots that has been developed in the city has fluctuated over the years.[1] This is largely due to factors such as the timing of large-scale residential developments and the general economic and market conditions at the time.

In 2005-06, there were 259 residential lots developed in infill areas, which accounted for 32.5 per cent of all lots developed during the year. Since that time, the number of infill residential lots has increased, reaching a peak of 475 lots in 2010-11 but falling to 188 new infill lots by 2012-13. Between 2005-06 and 2012-13, the number of infill residential lots within the city has fallen by 27.4 per cent.

Ratio of the number of lots created in infill to greenfield

The term ‘greenfield’ is used to describe undeveloped land for urban purposes outside the current edge of development.  These areas are usually large tracts of land, vacant or used for agricultural or amenity properties being considered for urban development due to their proximity to existing services and facilities. Examples of greenfield sites are seen in Seaford Heights, Seaford Meadows, Moana Heights and Hackham South-East.

Table 1: Ratio of infill lots to greenfield lots, 2005-06 to 2012-13

Financial Year Number of greenfield  lots Number of Infill lots Total lots Proportion of greenfield lots Proportion of Infill lots
2005-06 537 259 796 67.5% 32.5%
2006-07 334 211 545 61.3% 38.7%
2007-08 696 346 1,042 66.8% 33.2%
2008-09 450 297 747 60.2% 39.8%
2009-10 392 324 716 54.7% 45.3%
2010-11 318 475 793 40.1% 59.9%
2011-12 67 271 338 19.8% 80.2%
2012-13 242 188 430 56.3% 43.7%
TOTAL 3,036 2,371 5,407 56.1% 43.9%

Source: City of Onkaparinga, Development Policy Section


The ratio of infill to greenfield lots has varied between 2005-06 and 2012-13. Infill lots accounted for only 32.5 per cent of the total residential lots developed in 2005-06 but this had increased to 80.2 per cent of the total developments by 2011-12. On average, the ratio of infill lots to total lots has been around 45 per cent between 2005-06 and 2012-13. According to the 30 Year Plan for Greater Adelaide, the state government is looking to achieve an infill to greenfield ratio of 70/30.

The proportion of greenfield residential allotments were the highest during 2005-06 and 2007-08, accounting for over two-thirds of total residential developments during the year. The proportion of greenfield lots fell in 2011-12, accounting for just under one-fifth of total residential lots before picking up again in the last financial year to account for 56.3 per cent of total developments. Between 2005-06 and 2012-13, the number of greenfield residential lots within the city fell by 54.9 per cent.


[1] The number of residential lots in 2011-12 and 2012-13 was extracted using a different methodology from previous years, which may have an impact on the results.