BedZED

BedZED or Beddington Zero Energy (fossil) Development is a small district, small island residential of 82 residences, built in the south of London by the cabinet of architects Bill Dunster.

The project covers 1,7 hectares. It includes/understands 2.500 m ² offices and trade, a Community space, a theater, green areas public and deprived, a center médicosocial, a sports complex, a crib, a coffee and a restaurant as well as a unit of cogeneration. It is the first whole of this size and on this level of energy efficiency to be built in the United Kingdom, with the principles of the ecological Habitat and an social objective, with the support of the Fondation Peabody (ONG caritative of London, dedicated to the habitat, partner of the project). This realization quickly became a reference. One comes to visit it many countries.

The step approaches that of the environmental High-quality (HQE) and of the écoquartier S.

History

The initiative comes from the town of Sutton (southern of London), within the framework of sound Agenda 21 established in 1994. As of January 1999, the city obliges its suppliers to present a certification EMAS or ISO 14001 and invite them to provide écocertifiés products (ex FSC for wood).

Association Bioregional Dévelopment Group and the Fondation Peabody join the project of a écoquartier of Bill Dunster, specialist in construction with zero emission. WWF International supports the team as of her beginnings and will initiate a Franco-British structure of promotion of the concept in France.

Large a Analysis of the life cycle (ACV) measurement environmental impact of the life of the products for all the life of the district, construction to the energy needs, in transport and for the economic activities, social and cultural, for the management of waste, water and the air. Work starts in 2001. The first section is finished at the beginning of 2002. The first inhabitants settle March in November 2002.

In July 2000, the project BedZED , prize winner of the Price of IRCA ( Royal Institute of the Builders and the Architects ) becomes model for the program of housing “eco-homes” initiated by the English government (1 million ecological residences over 10 years!).

Objectives

To decrease the ecological print, with:

For energy:

a assessment-carbon of zero (neutral impact) without use of fossil energies

Consommation of reduced energy of 60% compared to the request domesticates average

Réduction of 50% of energy consumption related to transport

Fall in the demand in heating of 90%

For the environment:

Consumption of water reduced by 30%

reduced Volume of waste and increased recycling

Use of construction materials coming for half at least of a distance lower than 60 km

Development of the biodiversity of the spaces vegetalized, until on the roofs

No consumption of original or agricultural ground: the Approach is of type Ville renewed, here on a waste land (old carboniferous site) if it is not on itself, by using materials and primarily local resources

For the social one:

Social diversity is required

trade and sociocultural activities are integrated

the joint grid system supports the contact with outside

Results

BedZED seems to have succeeded in decreasing by 50% its ecological print is 2,88 hectares total/nobody or 1,6 planet (the print was calculated for an average scenario-type).

Compared to traditional residences:

the consumption of energy for the heating is reduced of 88%.
the warm water consumption is reduced of 57% (87 liters per capita per day).
the consumption of electricity is of 3 kWh per day, that is to say 25% less than the average in the United Kingdom. 11% are produced by the solar panels. The remainder is generated by a power station in cogeneration which uses residues of cut wood - but in this moment, it does not go. A replacement solution is being studied. Electricity currently comes from renewable energies.
the water consumption is reduced by 50% (or 67% in comparison with a house with a `power shower').
the mileage of the residents is tiny room of 65%.
There are 0,6 parking space by housing against 1,2 for a traditional housing.

The district is in addition close to green big spaces and each apartment has a small garden of approximately 15 m ² as well as greenhouse exposed to the South (heat and light) air-conditioned by ventilation passive.
The district is also connected to the network of public transport (station of Hackbridge, stop of tram between Wimbledon and Croydon), to encourage a less use of the cars, which in addition if they are electric can be reloaded by solar terminals. The use of the bicycle is facilitated. Lastly, a third of the apartments is reserved for social housing, a third is reserved for " key partners" (people having a public utility: doctors, male nurses, firemen, professors, etc), and the last third are sold/rented unconstrained specific.

Costs

Total costs : 17 d'€ million, of which:

14 million for construction,
2,5 million for the professional taxes,
0,5 million for planning and the control of construction.

Costs per m ² (in £)

930 £/m ² for the residences,
752 £/m ² for the offices
636 £/m ² for the trade.

The purchase price of housing was of 20% higher than the average costs of the real estate in these suburbs, but this apparent overcost quickly is deadened and compensated by very the low costs of exploitation and energy, and the availability in improved local services.

See too

External bonds

Official site
Site of BioRegional, the ecological organization which facilitated BedZED
Site of Bill Dunster, the architect of BedZED
BedZED in Google Earth
Photos of BedZED on Flickr
Vidéo of BedZED on EuroNews

Random links: