350 likes | 413 Views
The Summer Green Star MURT Pilot. www.lincolnescott.com. 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
E N D
The SummerGreen Star MURT Pilot www.lincolnescott.com
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
Ottimo Home Maymont MATCH “Match is a boutique development company, who’s aim is to build quality design based developments.”
Palandri Winery Lottery West – Tree Top Walk Christchurch Grammar 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”
Perth CBD ~15 km Rottnest Island Fremantle South Beach Cockburn Sound Garden island The Site <2 km
Lot 232 “The Summer” The Local Area
Lot 232 “The Summer” The location
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
Comparison Green Star Sustainability Schedule Energy Management Water Indoor Environment Quality Materials Land use and Ecology Transport Climate responsiveness and energy efficiency Water Efficiency and Conservation Liveability Materials Innovation and Construction Technology
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
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
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…)
Thank You Questions? www.lincolnescott.com