Green Star FAQs
How do I calculate C&D Waste points when delivering an integrated Interiors project within a Design & As Built building?
Fixed Benchmark Pathway (22A)
Projects teams delivering a Green Star rated Interiors project within a Green Star Design & As Built rated base building may aggregate the base building and fitout construction and demolition waste to determine the maximum waste allowance based on the combined GFA and NLA.
Up to one (1) point for the base building (GFA) and up to three (3) points are awarded for the fitout (NLA) where the construction and demolition waste going to landfill meets a fixed benchmark, defined in kilograms of waste per square metre in the Construction and Demolition Waste Fixed Benchmark pathway.
Points are awarded based on the maximum waste allowance calculated using the combined GFA and NLA:
(GFA x targeted waste benchmark) + (NLA x targeted waste benchmark) = cumulative waste total.
Points are awarded in accordance with the waste benchmarks for a typical building, and typical fitout as per the table below;
Design & As Built (base building) |
Interiors (fitout) |
||
Waste kg/m2 (GFA) | Points Awarded | Waste kg/m2 (NLA) | Points Awarded |
> 15 | 0 | > 3.5 | 0 |
12.5 - 15 | 0.5 | 2.6 - 3.5 | 1.5 |
10 -12.5 | 1 | 1.6 - 2.5 | 3 |
< 5 | 1 INN 30C | < 1 | 1 INN 27C |
Please note only one innovation point is available and that points may be pro-rated in between benchmarks.
Example:
A fitout has an NLA of 4,000 m2 and the base building GFA is 10,000m2. The total waste sent to landfill for the integrated fitout (both fitout and base building) is 100,000 kg.
In order to achieve 3 points under GS Interiors using this approach, the project would need to demonstrate that the total waste sent to landfill is less than the benchmark for cumulative waste total as per the equation above (and exampled below).
(GFA x targeted waste benchmark) + (NLA x targeted waste benchmark) = cumulative waste total.
(10,000 m2 x 12.5 kg/m2) + (4,000 m2 x 2.5 kg/m2) = 135,000 kg.
As 135,000kg > 100,000 kg, the waste sent to landfill is less than the waste benchmark. Therefore, the project is eligible to target 3 points.
Percentage Benchmark Pathway (22B)
Projects teams delivering a Green Star rated Interiors project within a Green Star Design & As Built rated base building may aggregate the base building and fitout construction waste when targeting a percentage benchmark. Up to one (1) point for the base building (GFA) and up to one (1) point for the fitout (NLA) is awarded where at least 90% of aggregated base building and fitout waste, generated during construction and demolition, has been diverted from landfill (waste reported in kilograms) as defined in the 22B Construction and Demolition Waste - Percentage Benchmark pathway.
Documentation Requirements:
Please provide the following in your submission;
- Compliance Verification Summaries from waste contractor(s) and waste processing facilities.
- Disclosure Statement from waste contractor(s) and waste processing facilities.
- Demolition or site drawings.
- Cumulative waste report.
- Calculations based on the total GFA and NLA demonstrating compliance with the fixed waste benchmarks for base building and fitout (22A) OR Calculations demonstrating compliance with the percentage benchmark (22B)
- A copy of this response.
This FAQ is related to the following Rating Tools, Categories or Credits:
- Green Star - Design & As Built v1 / Innovation
- Green Star - Design & As Built v1 / Materials
- Green Star - Design & As Built v1.1 / Innovation
- Green Star - Design & As Built v1.1 / Materials
- Green Star - Design & As Built v1.2 / Innovation
- Green Star - Design & As Built v1.2 / Materials
- Green Star - Design & As Built v1.3 / Innovation
- Green Star - Design & As Built v1.3 / Materials
- Green Star - Interiors v1 / Innovation
- Green Star - Interiors v1 / Materials
- Green Star - Interiors v1.1 / Innovation
- Green Star - Interiors v1.1 / Materials
- Green Star - Interiors v1.2 / Innovation
- Green Star - Interiors v1.2 / Materials
- Green Star - Interiors v1.3 / Innovation
- Green Star - Interiors v1.3 / Materials
These FAQs are:
- provided as additional technical assistance for Green Star users.
- optional and free to use on Green Star projects.
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