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Housing Density

Summary
  • The proposed density of housing on MG 2 (43) is not unusual or exceptional - even in St Nicholas.


The proposed housing site, MG 2 (43) is 3.7 hectares, or 9.1 acres in size according the the council.  


Ignoring the space required for roads and footpaths, this would allow 0.04 hectares per dwelling or 0.09 acres per dwelling.  Below

The average developer will place a 4 bedroomed home on 1/8th to 1/16th of an acre


 Density gradient  Units/Ha Persons/Ha
 Low density detached – Hertfordshire  5 20
 Average net density – Los Angeles15 60 
 Milton Keynes average 199017 68 
 Average density of new development in UK 1981–912288 
 Minimum density for a bus service25 100 
 Private sector 1060s/70s – Hertfordshire25 100 
 Inner-war estate – Hertfordshire30 120 
 Private sector 1980s/90s – Hertfordshire 30 120 
 Ebenezer Howard – Garden city 189845 180 
 New town higher density low-rise – Hertfordshire45 180 
 Sustainable urban density 69 275 
An average dwelling size of 4 bedspaces has been assumed throughout this table
although 
it should be noted that this is higher that the average household size in the UK
 Source: Better Neighbourhoods: Making higher densities work - CABE (Commission for Architecture & the Built Environment).

Average density levels

House type Urban Victorian or other period terraces
Density (dwellings per hectare) 60 to 80 
Number of habitable rooms per hectare 280

House type Modern executive home developments
Density (dwellings per hectare) 5 to 10
Number of habitable rooms per  hectare 40

House type 20th century garden cities
Density (dwellings per hectare) 30 to 40
Number of habitable rooms per hectare 165

House type Suburban semi-detached Density (dwellings per hectare) 15 to 30
Number of habitable rooms per hectare 90

Source: CABE report Making higher densities work

CABE name a number of benefits of higher density housing, including: Higher density development makes it easier to create a sense of identity and place. When combined with greenery and attention to detail, it can turn locations into desirable places. Far from reducing the quality of neighbourhoods, higher density housing can make them more distinctive and introduce a much-needed element of diversity. 


The top 10 biggest barriers to building higher density development in the South East

Source: CABE


It should be remembered that there are relatively densely built properties already in existence in St Nicholas, including Merrick Cottages, Dyffryn Close and Church Row.


A lack of garden space has, even in St Nicholas in the past, been dealt with in the form of allotments.


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