Building on brownfield sites and density of new developments
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A useful document from the UK governmenty. It covers building on brown field and also density of new developments. It has both regional breakdown of results and local authority - covers 1996 onwards.
I don't know if there is a recommended minimum density level from green planners, but it seems to me that most of these density levels won't be able to easily support public transport and local services. It is broken down by English region.
●In 2006, provisional estimates show that new dwellings were built at an average density of 40 dwellings per hectare. This is unchanged compared to 2004 and 2005, but compares to 25 dwellings per hectare for each year between 1996 and 2001.
●Provisional estimates of densities of new dwellings in 2006 show at least 34 dwellings per hectare in all nine regions and increased densities in six out of the nine regions (all but East Midlands, London and West Midlands remained the same) compared with 2005 fi gures. Before 2002 all except London were below 30 dwellings per hectare (see Table 6).
●Over the period 2002–2006, dwellings built on previously-developed land were built at densities of between 33 to 43 dwellings per hectare in each region, with the exception of 87 dwellings per hectare for London.
●Over the same period, dwellings built on land not previously-developed were built at densities of between 24 to 29 dwellings per hectare in each region, with the exception of 56 dwellings per hectare for London.
●Densities increased in all regions between the periods 1997–2001 and 2002–2006.
The smallest such increase was from 25 to 32 dwellings per hectare in the North East and 23 to 30 dwellings per hectare in the East Midlands while the largest increase was from 53 to 85 dwellings per hectare in London.
Dwellings per hectare London - shows how it changed with Mayor's London Plan being brought in
1996 - 56
1997 - 51
1998 - 53
1999 - 56
2000 - 56
2001 - 48
2002 - 59
2003 - 85
2004 - 97
2005 - 104
2006 - 84
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