A Brownfield site is land which has been developed previously and is or has been occupied by a permanent structure. It may be in an urban or rural setting. It does not include agricultural land, forest or parks. Whereas a Greenfield site is Land which has not been occupied by a permanent structure. It usually applies to land in the countryside but can be undeveloped land within an urban setting. Both of these sites can be ideal for the development of new housing but both also have benefits and drawbacks to doing so. Firstly redeveloping Brownfield sites eases pressure on Greenfield sites and is more sustainable. Although Greenfield sites are often on the edge of towns and cities and may have better access, have less congestion, be in a more pleasant environment and have more space and room to expand. Redeveloping a Brownfield site would cause House prices to increase in inner city areas as people are encouraged back to the area. This is a benefit for people already living there but, this might mean that other people cannot afford the houses, and the council will have to provide for them which may cause problems.
Basic Infrastructure already exists in Brownfield sites but in Greenfield sites new drainage, electricity, roads etc. would all have to be produced deeming them more expensive. Although Light industry and Science Parks favour out of town locations on Greenfield sites opposed to Brownfield sites and crucially so do their workers who are happier to live away from urban areas.
New sites are easier to build on as remains of previous land use do not need to be cleared making them more attractive to retail parks, housing developers etc. But using Greenfield sites is not sustainable as there is too much pressure on the rural-urban fringe therefore making the development of Brownfield sites a better option.
There is an issue of contamination and making sites safe for development, given what the...