Which parts of the property’s performance are evaluated for the greenproperty certification?
For the greenproperty certification, ecological, economic and social criteria are assessed in five different aspects. These aspects are divided into different criteria and around 50 indicators, that must be checked for every construction project. The five greenproperty aspects influence the assessment in equal parts: each aspect is weighted with 20%.
- Life Cycle
The specified criteria stand for different areas within the individual aspects. For each aspect, five standard criteria and one innovation criterion are defined. Each criterion makes up 4% of the total rating. In each aspect there is a sixth criterion named “Innovation”, through which the degree of fulfillment within a single aspect can be improved by 5%. The innovation criterion can change annually and thus promotes both proven and new ways and solutions.
In turn, up to four indicators are defined for the individual criteria, on the basis of which the projects are evaluated. Depending on the number of indicators, these make up 1 to 4% of the overall rating. Some indicators are marked as situation indicators. Their rating depends on the property or the location. The results here can sometimes be improved by employing measures appropriate to the property.
To meet the individual indicators, single or multiple measures are formulated, which are defined and published once a year.
How does the greenproperty certification progress work?
If a property or a construction project is to receive greenproperty certification, a multi-stage assessment process must be carried out. The fullfillment of economic and sustainability criteria is reviewed during the planning and acquisition phase and a provisional seal of approval (gold, silver or bronze) is issued if the test is passed successfully.
There are no minimum requirements for individual criteria that have to be met here – it makes sense, however, to include the certification intention in the planning from the start, as the provisional seal of approval is awarded in the planning phase. The evaluation in the area of use in particular is strongly influenced by decisions made in the project definition phase and the early project phases (e.g. determination of procedures, apartment mix, participation, semi-public spaces, use of daylight, etc.). In the implementation phase of the project, adjustments are still possible if necessary in order to meet the requirements for the desired seal of approval, but again – the earlier the better. If the decision on certification is only made at an advanced stage in the project planning, the optimization potential is severely limited and the chance of achieving the minimum degree of fulfillment of 30% for bronze certification is low. Basically, the earlier the aspect of sustainability flows into the planning, the better sustainability goals can be formulated and integrated and the higher the prospect of meeting the goals.
After the project has been completed, the same examination process takes place again as at the beginning of the project; if the check is passed successfully again, the definitive seal of approval is awarded.
Are there different greenproperty certification stages?
The greenproperty seal of approval is awarded in gold, silver and bronze.
The following requirements must be met for the respective certification levels:
A minimum fullfillment rate of 55% has been achieved for all aspects. A Minergie® or Platinum certification for SNBS, DGNB or LEED has been obtained and the following Minergie® -Eco exclusion criteria detailed in the “Requirement specifications and implementation guidelines for new buildings” (Vorgabenkatalog und Umsetzungshinweise für Neubauten), version 1.4 (January 2018) have been met:
- NA1.010 Harmful substances in buildings
- NA1.020 Chemical wood preservatives in interiors
- NA1.030 Biocidal products
- NA1.040 Formaldehyde emissions from construction materials
- NA1.050 Solvent emissions from construction and auxiliary materials
- NA2.010 Assembly and sealing work
- NA2.020 Heavy-metal-containing components exposed to weathering (roofing, facade, and finishing materials)
- NA2.030 Lead-containing materials
- NA2.040 Wood selection
- NA2.050 Recycling (RC) – Concrete
A minimum fulfillment rate of 45% has been achieved for all greenproperty aspects and Minergie® certification has been obtained or SNBS, DGNB, or LEED gold certification has been obtained.
A minimum fulfillment rate of 45% has been achieved for four of the five greenproperty aspects. In every aspect, the fullfillment rate must be above 30%.
Overview of the greenproperty aspects, criteria and their ESG classification in environment (E), social (S) and governance (G):
|1 Use||Planning||1.1.1 Participation||x|
|1.1.2 Structural density||x|
|Target groups||1.2.1 Barrier-free architecture||x|
|1.2.2 Integration und mixing||x|
|Space design||1.3.1 Social contact||x|
|1.3.2 Spatial identity||x|
|Indoor comfort||1.4.1 Indoor climate||x|
|Visual and acoustic comfort||1.5.1 Daylight||x|
|1.5.2 Sound isolation||x|
|Innovation||1.6.1 e.g.: Online platform for tenants|
|2 Infrastructure||Location||2.1.1 Basic services||x|
|2.1.2 Recreation / leisure||x|
|Mobility||2.2.1 Public transportation||x|
|2.2.2 Infrastructure for bikes||x|
|2.2.3 Motorized private transportation||x|
|Security||2.3.1 Natural hazards||x|
|2.3.2 Sense of security||x|
|2.4.3 Outside air||x|
|Outdoor space||2.5.1 Infiltration / retention||x|
|Innovation||2.6.1 zB: intelligent digital infrastructure for tenants|
|3 CO2 / Energy||Architecture / concept||3.1.1 Building||x|
|3.1.2 Summer heat protection||x|
|3.1.3 Efficient hot domestic water distribution||x|
|3.1.4 Energy and control concept||x|
|Self-supply||3.2.1 Heat used on-site||x|
|3.2.2 Degree of self-sufficiency, electricity||x|
|Greenhouse gases||3.3.1 CO2 emissions in operation||x|
|Primary energy||3.4.1 Energy consumption index, operation||x|
|3.5.3 Household appliances||x|
|3.5.4 Electricity product||x|
|Innovation||3.6.1 zB: predictive heating system|
|4 Materials||Contaminated sites||4.1.1 Contaminated sites on the premises||x|
|Embodied energy||4.2.1 Primary energy, construction||x|
|Environmental impact||4.3.1 Recycling||x|
|4.3.2 Raw materials||x|
|4.3.3 Recycled concrete||x|
|4.3.4 Pollutant input||x|
|Indoor air quality||4.4.1 Indoor air pollutants||x|
|Water||4.5.1 Water consumption||x|
|Innovation||4.6.1 zB: Use of the latest technological materials|
|5 Life cycle||Efficiency / flexibility||5.1.1 Space efficiency||x|
|5.1.2 Use flexibility||x|
|5.2.2 Energy controlling / Operational optimization||x|
|Maintenance||5.3.1 Building envelope||x|
|5.3.2 Building structure/fit-out||x|
|Operation||5.4.1 Comparison based on life cycle costs||x|
|5.4.2 Planning / construction||x|
|5.4.3 Building operation||x|
|Data management/ documentation||5.5.1 Building information modeling||x|
|5.5.2 Documentation of operation||x|
|Innovation||5.6.1 zB: Applications for a visual representation of personal energy data|