Green Star water credits
These are two different credits. Water Use is about potable and reclaimed water demand. Waterway Protection is about stormwater quality and receiving waters. We prepare the modelling and documentation for both, while fixtures, tanks and treatment can still change.
Send us your drawings and the Green Star tool and version you are registered under. We'll confirm the scope and the fee.
This page is part of Water Design.
If Green Star is in the brief, send the drawings, project address, registered tool and version, building type, and which water credits you are targeting. We work to the version your project is registered under. New Green Star Buildings registrations are under v1.1; projects already registered under v1 can continue under that version. The registered version sets the criteria, not this website.
GBCA certifies Green Star projects. We document and model the water credits.
In Green Star Buildings v1.1, Water Use can earn stepped points for performance between benchmarks. We do not reprint credit numbers, point values or reduction percentages here; those sit in GBCA's Submission Guidelines for your registered version.
Fixture and irrigation packages that stay generic force the Water Use claim to be guessed. Quantifying demand now is cheaper than changing sanitaryware or planting after documentation starts.
A rainwater tank can support both credits if the same roof connection, demand and treatment claims appear in both sets of evidence. It does not automatically satisfy Waterway Protection, and neither does a MUSIC model. Both can support the evidence; GBCA still decides the credit.
Raingardens that look generous on a landscape plan can still fall short if catchment, sizing or bypass is wrong. That check belongs before the landscape package is locked.
If the team wants to use a v1.1 credit on a v1 registration, that is a question for GBCA, not something we assume.
[Sound familiar]
Generic fixture and irrigation packages force the Water Use claim to be guessed. Quantifying demand now is cheaper than changing sanitaryware or planting after documentation starts.
Not automatically, and neither does a MUSIC model. A tank can support both credits if the same roof connection, demand and treatment claims appear in both sets of evidence. GBCA still decides the credit.
They can still fall short if catchment, sizing or bypass is wrong. We check that before the landscape package is locked.
Send the rating target and drawings.
We map demand, supply and treatment to the two credits.
We prepare calculator inputs and outputs once the official Water Use calculator is used, plus the Waterway Protection narrative. Timeframes are confirmed at quote.
No. They are two different credits. Water Use covers potable and reclaimed water demand. Waterway Protection covers stormwater quality and receiving waters.
The version your project is registered under. New registrations are under v1.1. Projects already registered under v1 can continue under that version.
Not automatically. Both can support the evidence, but GBCA still decides the credit. A tank can support both credits if the same roof connection, demand and treatment claims appear in both sets of evidence.
That is a question for GBCA. We do not assume it.
Credit numbers, point values and reduction percentages sit in GBCA's Submission Guidelines for your registered version, so we do not reprint them here.
Send us your drawings, the project address, and the Green Star tool and version you are registered under.
