21CD twenty-first century development

Hammarby Sjöstad

Stockholm, Stockholm County, Sweden

Hammarby aspires to develop an innovative sustainable urban greyfield development with closed-loop resource systems and a pedestrian friendly design. Hammarby unifies energy, water and waste infrastructure, and reduces vehicle use to develop efficient infrastructure. 

Size:

495 acres, 9000 unit

Dates:

1995-2015

Project Team:

Eskil Sundahl and Arthur von Schmalensee

 

Performance levels achieved:

  • Standard

  • Good

  • Better

  • Living

  • Regenerative

Place
Limits to Growth
Food
Habitat
Transportation
Water
Energy
Health + Happiness
Civilized Environment
Neighborhood Design
Biophilia
Resilient Connections
Materials
Material Plan
Embodied Energy & Carbon
Waste
Equity
Neighborhood & Access
Access to Nature
Access to Community Services
Investment
Beauty
Beauty & Spirit
Inspiration

Goals & Strategies:

Place

Food

Goals: Not defined.

Strategies: Not defined.

Habitat

Goals: Not defined.

Strategies: Green roofs and roof top gardens for storm water retention, tree plantings, lake with wetland habitat.

Transportation

Goals: Not defined.

Strategies: Tram line, biogas fueled public transportation, ferries, carpooling, pedestrian path ways, bicycle infrastructure.

Water

Water

Goals: 53 gal/person/day, hazardous substances in water reduced by 50%, 95% of phosphorus separated and returned to agriculture.

Strategies: Water to biogas, storm water runoff cleaned locally, rain water collection in a landscaped canal purified through constructed wetlands and is delivered to Lake Hammarby Sjö, test wastewater facility for innovative technologies.

Energy

Energy

Goals: 50% reduction in energy consumption.

Strategies: Solar PV and battery storage, solar hot water heating, hydro-power, bio-gas for transportation, district heating, co-generation for heat and electricity, metering.

Health + Happiness

Equity

Goals: 50% rental, 50% owner-occupied, promote a sense of community.

Strategies: Social sustainability principles: balanced public and private mixed use community, walkable, accessible services, public art, environmental education, cultural activities.

Materials

Embodied Energy & Carbon

Goals: Selection of sustainable materials.

Strategies: Double glazed facades, low energy appliances, products need to prove that they can be recycled at the end of their life, contractors required to follow material specifications, select non-toxic materials.

Waste

Goals: 20% waste reduction.

Strategies: Solid waste sorting through underground vacuum system, fertilizer from bio-gas digestion, waste water from co-generation plant circulates city in cooling network.

Download Case Study (PDF)

Sources: thenatureofcities.com  |  aeg7.com (PDF  |  futurecommunities.net  |  ourworld.unu.edu  |  bygg.stockholm.se  |  symbiocity.org

*Note: This case study was developed using found information.