www.lincolnescott.com the summer green star murt pilot
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Project Background LandCorp Tender
– Development Guidelines– Sustainability Guidelines
Consortium led by Match– Offered best overall package– Committed to include sustainable initiatives
Design Team– Architect: Donaldson and Warn– ESD, Mechanical, Electrical: Lincolne Scott– Hydraulics: HDA Consultants– Structural: GHD– Quantity Surveyor: RBB
MATCH
“Match is a boutique development company, who’s aim is to build quality design based developments.”
Ottimo Home
Maymont
Donaldson and Warn
“Donaldson+Warn is a multidisciplinary contemporary design studio with extensive experience in architecture, urban design, master planning, interior architecture and public art. For over two decades the practice’s work has consistently featured in national and international publications and attracted numerous awards”
Palandri Winery
Christchurch Grammar
Lottery West – Tree Top Walk
The Site
Perth CBD
Fremantle
South Beach
~15
km
Rottnest Island
Cockburn Sound
Garden island
<2 km
Lot 232“The Summer”
The Local Area
Lot 232“The Summer”
The location
The Summer
Background (ESD) Original
– Agreement with LandCorp to be “Sustainable” – Sustainability Schedule Approved by LandCorp
Evolution– MURT Pilot ROI near start of project– Opportunity to extend commitment to ESD– Determined that Green Star could be achieved– Applied and accepted as a pilot project (1 of 7)– Project was assessed as part of the Green Building Council
of Australia’s (GBCA) Multi Unit Residential Tool Design (MURT)
– Only WA MURT Pilot Project to be assessed– First residential project to achieve a Green Star rating
LandCorp Schedule
Climate Responsiveness and Thermal Performance– Cross flow ventilation, High performance materials– “Additional” AccuRate Energy Rating (average 5 Stars with min
4stars) Energy Conservation and Efficiency
– Low energy lighting– Gas boosted solar hot water– Renewable energy (photovoltaic)
Water Efficiency and Conservation– Efficient fixtures– Install 3rd pipe (for future connection)
Materials Innovation and Construction Technology– Low VOC paints, carpets and adhesives– “Additional” HDPE plumbing in lieu of PVC
Accessibility– Lift access to car park, Universal access to units
Affordability– Diversity of sizes and range of units
Liveability– Climate control, Cross ventilation, High performance glazing
EnergyManagement
WaterIndoor Environment
QualityMaterials
Land use and EcologyTransport
Green StarClimate responsiveness and energy efficiency
Water Efficiency and ConservationLiveabilityMaterials Innovation and Construction
Technology
Sustainability Schedule
Comparison
Green Star vs Sust. Schedule Energy
– Increase in passive performance from 4 stars average (BCA) AccuRate to 7 stars AccuRate (insulation, cross ventilation, orientation)
Rainwater used for toilet flushing Transport initiatives
– Cycle storage facilities– Visitors cycling facilities– Reduced car parking
Waste Management – Recycled waste area
Metering – Additional electricity, gas and water metering
Lighting/equipment controls – increased Construction
– Env. Mgt Plan– Increased commissioning focus
Green Star Rating
4 Star 5 Star 6 Star
Green Star Targets – First Pass
Pilot vs “normal”
No technical manual, limited documentation of requirements
Untested criteria References to Office V3 technical manual (often
not applicable)
More assistance from GBCA
Project Context
Small/medium development with commensurate budget
36 apartments No site “property manager”- only body
corporate
Green Star Strategy– Build on areas already addressed in submission
• IEQ• Energy• Water
– Focus on areas with greatest environmental outcome fro expenditure
– Minimise any ongoing “burden” on occupants/owners
Management Commissioning has increased focus on handover
documentation Metering – changed from pilot to V1(2 points for
smart metering in pilot, plus 2 in energy plus 2 in water, all 6 in Man-16 in V1)
Issues for our project– Struggled to find an economical solution to “smart
metering”– Use of a BMS was not practical for the scale of the project– Had difficulty with commissioning requirements, building
tuning and commissioning agent role • Building is simple with simple service• No property manager for ongoing mgt • Strata Company with Multiple owners at practical
completion, not necessarily on site (could be investors with tenants)
Indoor Environment Quality
Private external spaces added
Issue for Project– Struggled with requirements to demonstrate design
achieved full noise credits
Ventilation Modeling
Daylight Modeling
Sample Daylight Models for Units 18 and 19
Energy Conditional Requirement – average 7 stars AccuRate
(different from V1 which now has 10% improvement over regulated requirement, which is 4 stars average in WA)
Max 15 points in pilot, now 20 in V1 Metering credits in pilot, now in Mgt in V1 Includes energy efficient appliances Peak Demand reduction criteria easier
Issues for our project– 7 star “hurdle” required changes to building fabric/insulation etc
(even though the building was already very efficient)– Metering requirements required dedicated electronic
metering/monitoring system or BMS to get full points– Need to provide appliances as part of base building to get credits
Passive Building Performance High Performance Thermal Materials for
construction Building Orientation Solar Shading Operable Louvres for air flow control by occupants Average 7 Stars AccuRate Rating
4 stars = 118 MJ/m2
7 stars = 52 MJ/m2
If all units living areas were air conditioned (option) saving ~ 30 tonnes GHG emissions per annum (~ 1 tonne per apartment)
Solar Hot Water
Gas boosted Solar hot water Storage tank and boosters on roof Solar panels will provide approx. 70% of the annual
hot water demand Will save approximately 100 tonnes CO2-e of GHG
p.a. Equivalent to permanently removing 30 medium
sized cars off the road
Transport
Parking criteria recognise “minimum requirement’ so credits' for not exceeding minimum allowances can be gained
Credits for being close to amenities Issues for our project
– Location dictated availability of credits– Small vehicle parking option not practical
Water
Reduced use of potable water credits Water efficient appliance credit Pools/spas credits
Issues for Project– Rainwater collection area limited to roof. (Still
sufficient to get 4/5 credits for reduced potable water consumption)
– Need to install washers as part of base building
Water Recycling
Rain water will be collected and reused for toilet flushing - utilising a 3rd Pipe
This will provide in excess of 30% (site restrictions limit the amount available) of the total potable water utilised for toilet flushing
The reuse of rainwater will save the equivalent of 6 domestic swimming pools (30kl) or a total of 177 kL per year.
Materials
Recycling waste area adapted to residential Universal Design (adaptability for disabled
access) is in this section Now more credit points available with V1 (cf
pilot)
Issues for Project– Costs were factor in not targeting many materials
points
Land Use and Ecology
Includes Outdoor Communal Facilities credits
Issues for Project– Scale of project limited ability to provide communal
facilities
Emissions
Issues for Project– Ongoing Mgt of on site recycled (black/grey) water
and scale of project did not make this viable– All stormwater retained on site (full credits for
watercourse pollution)
MURT – Summary of Issues Increased Costs vs Market Benefit
– Green Star design and administration– Construction
Ability to achieve required energy rating (conditional requirement)
Issue of final ownership (multiple owners) and control after settlement
Metering Use of BMS Green Star Process
– Applicability to the scale of the development– Applicability to Residential (vs Office)– Usual submission requirements
(precision,consistency, addressing all requirements…)
Final Result
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