1. WIR SIND
NOVA
ENERGIE
Sustainability Concept Erlenmatt Ost
Priska Sacher, Nova Energie, September 2018
September 2018
Bild: Nova Energie/Sacher

2. Content
1. Introduction / Background
2. Development of the sustainability concept
3. Contents of the sustainability concept
4. Findings from the Implementation Phase
5. Conclusion
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3. Introduction / Background
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4. Area Erlenmatt Ost
• 19’000 m2 logistical area vacant
through reorganization
• Goal: development of a sustainable
district
• 700 apartments, 2000 work places
• school, shopping mall
• green and open spaces
Individual sustainability concept
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Former logistic area 2009. S: BVD
Site logistic area Kt. BS
Visualisation urban-development comeptition. S: Vivico Aerial view 2018: Vistadoc, Stefan Burri

5. Understanding Sustainable Development
community
design
use / infrastructure
well-being/health
building substance
investment costs
operating and maintenance costs
building materials
operational energy
soil/ landscape
infrastructure
balanced
sustainability
Society Economy
Environment
Today’s generation
Non industrialized
Industrialized
Future generations
Source: Own representation
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6. Sustainable Site Development
City (=Σ Areas)
2000-Watt-Area
SMEO
…
…
DGNB/SGNI City Districts
LEED ND
BREEAM Communities
…
MINERGIE
MINERGIE-P / A
MINERGIE-ECO
SNBS
DGNB/SGNI
LEED B+C NC
BREEAM
Energy city
…
…
…
…
…
…
LEED ID+C
…
Source: BFE
Processing Levels and Planning Tools
II) Area III) BuildingI) City
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7. Role of the Stakeholders
City
Sells property
Specifies zoning plan
Foundation
Sets framework conditions
(criteriacatalog)
Assigns parcels according to
building rights agreement
Investor
Holder of building rights
Selects criteria for design
and construction Model Erlenmatt Site. S: Basellandschaftliche Zeitung, added
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8. Development of the
Sustainability Concept
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9. Goals of the Foundation Habitat
• Enable living and working in a livable environment
• Create a comfortable living and working space to maintain on a
long-term basis
• Act according to ecological principles
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10. Involved Parties – the Sustainability Committee
• Foundation Habitat, Jo Dunkel
 Representation of the client
• Office for environment, Urs Vonaesch
 Energy efficiency, legal requirements
• Zimraum, Joëlle Zimmerli
 Social criteria
• Nova Energie, Priska Sacher
 Criteria environment and economy
 Project management
The sustainability committee has developed the sustainability
concept and accompanies all projects during the implementation.
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11. Development of the Criteria Catalogue
• Project timeline 2013 – 2019
• Development of criteria catalogue in close cooperation with the
foundation Habitat
• Inclusion of
 SIA Norm 112/1
 NH-Labels such as Minergie-P, Minergie-Eco
 Relevant guidelines and recommendations (such as age-appropriate
residential buildings, efficient washing and drying in single-family houses,
etc.)
 Criteria Catalogue; assessment tool (Excel-File)
 Sustainability Concept
file:///S:/Nova_PROJEKTE/1810_Referate/1810_02_Wohnnetz/url_NH_Konzept.html
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12. Criteria Catalog as a Tool
Society
Economy
Environment
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13. Options to select
• Mandatory criteria (exclusion criteria)
• Specifications (can be compensated with bonus)
• Bonus criteria (voluntary)
• Minimum requirements (75% of all points per section)
Choice between specifications and bonus criteria offers planners
scope for their own orientation and economic solutions
Comprehensive: Requirements go beyond existing labels, variety
of social criteria
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14. The Process: 5 Milestones
Testplanning
• Voluntary assessment of project in early stage
• Resolve contradictions with sustainability concept early on
• Define proceeding (schedule, etc.)
Pre-Project
• Examination of pre-project based on self-declaration and supplementary
documents
• Joint discussion
Construction
project
• Examination of construction project based on self-declaration and revised,
refined documents
• Joint discussion
Building control
& inspection
• Building inspections on certain aspects of sustainability
• Building inspection with client
• Project completion: phase construction
Operational
phase
• Evaluation of the operating data after two years of operation to check the
success
• Optimization
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15. Contents of the Sustainability
Concept
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16. Criteria for Buildings (extract)
Environment
• Efficient building envelope (insulation, air tightness)
• Summer thermal insulation / usage of solar heat gain / daylight
• Origin of the materials, reutilization, Grey energy (= embodied energy), Small
ecological footprint
• Energy efficiency, low use
• Obligation to connect to the self contained heat and energy network > ADEV
Economy
• Flexibility of use (simple alterable building structure)
• Shared infrastructures for residential and commercial areas
Society
• Promotion of exchange between site users, encounter-fostering design
• High security perception for the site users (openness, view, lighting, „social
control”, no pure „sleeping accommodations“)
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17. Criteria for buildings (supplement)
Economy
• Building structure for flexible use in order to possibly modify the
apartments or commercial spaces in the future
 Additional storeys are possible
 Floor plans and statics for high flexibility of use
 Accessibility of technical equipment, shafts and pipes for later
adjustments
 Commercial spaces and apartments suitable for different user groups
(diversity)
 Shared infrastructures for residential and commercial areas
• Use of long-lasting materials and technical equipement
• Local materials and production
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18. Findings from the
Implementation Phase
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19. The Sustainability Concept is effective
• The granter of the building rights imposes a sustainability
character on the projects
• Increased need for discussion and planning effort among the
building owners and planners
• Different requirements and the multiple-eye principle leads to a
broader view and mature projects
• Planning takes longer and leads to higher quality
• Criteria catalogs can be used as control tools, leaving decisions
open
Important: The sustainability committee sets a common thread at
milestone meetings. Knowledge transfers take part
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20. Control of small Apartments
• Restriction of living space consumption: < 45 m2 / person
(including corridor, staircases and common rooms)
• Housing mix: Between 30% and 50% of the apartments have 4 or
more rooms
The combination between these two mandatory criteria led to a
very economical use of living space at Erlenmatt East
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21. Control of favorable rental prices
• Restriction of living space at 45 m2 / person
• Rental prices below the quarterly average
Regardless of the construction costs/m2, the smallest apartment
in terms of area has the cheapest rent
Small apartments with good, functional floor plans are
preferable
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22. User flexibility has its price
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23. User flexibility has its price
Different switchability becomes a challenge for the building services
and the costs (example of block 2)
Solutions for cost savings:
select the most likely and useful variants
only one variant per side
Decisions of planning team:
• Accessible installation shafts in the staircase with opening fronts
• Comfort ventilation tubes can be switched
• reduced electrical conduits and loop boxes laid on sight
• Underfloor heating room for room, heat is charged by m2
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24. Incentive for voluntary commitment
How can the effort for claiming evidence be reduced?
With an incentive system over the ground rent.
LevelofGroundRent
.Basis 100% Bronze Silber Gold Platin
Raising the ground rent at
number of fulfilled criteria
So the obligation to act lies
with the applicant, less
work for the sustainability
committee
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25. Conclusion
The granter of the building rights has power, freedom of creation,
and control capabilities. He can:
• Set the framework conditions for a sustainable lifestyle
• Lay down requirements on the buildings and thus indicate a
direction towards sustainability
• Due to the compilation of the holders of the building rights, the
granter of the building rights can influence the neighbourhood
significantly
These possibilities can be used by the private granter of building
rights and authorities
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26. Thank you for your attention!
What experiences have you had with similar projects?
Sustainability concept Erlenmatt Ost and
further findings in the annual reports of the P+D project:
https://www.stiftung-habitat.ch/sh/liegenschaften/haeuser-und-projekte/erlenmatt-ost.html
Contact
Priska Sacher
Nova Energie Basel AG
Freie Strasse 2, 4001 Basel
+41 61 273 00 73 https://novaenergie.ch/basel
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