Block Level

• Urban Redevelopment ─ The building development does not use redeveloped or reclaimed land.

• Public Transportation Access ─ The project site is located within 100m radius from a Mass Rapid Transportation (MRT) station and bus stops. Building One has a proximity to food shops and a post box within 500m, and has a proximity to bank, school, community centre, public house, and children’s play area within 1000m.

• Heat Island Effect ─ The building’s roof is made of RC and Ferrocement which are not highly reflective and high emissivity materials, and there is no green (vegetated) area on the roof.

• Construction Management ─ Building One was built in 1971. However, the International Organization for Standardization (ISO) published the first edition of the ISO 14001 standard on Environmental Management System (EMS) in 1996.

According to the architect, there was no implementation of an environmental management plan for the project.

• Pollution During Construction ─ Information is not available to demonstrate that the project met the credit requirement during construction.

• Noise from Building Equipment ─ Building One meets the credit requirement.

• Building User Handbook ─ Building user handbook is not provided to building users.

7.3.2.2 Water Efficiency

• Innovative Wastewater Technologies ─ No innovative wastewater technology is applied in Building One.

• Metering and Controls ─ It is observed that water meters are installed for every unit. One credit is achieved.

• Water Quality ─ According to Public Utilities Board, potable water meets WHO drinking water quality standards. However, no measure is installed for treatment of potable water supplies to ensure quality to WSD (WHO) drinking water quality standards at point of use.

• Water Recycling ─ Water recycling facilities are not provided in Building One.

7.3.2.3 Energy Use

• Improvement of the Average U-value ─ The average U-value of external building surfaces is 0.84W/m²K, and the average roof U-value of Building One is 0.5384W/m²K. Both of them meet the credit requirements.

• Building Orientation ─ According to the drawings of Building One, total area of external building surfaces facing N-S is less than total area of external building surfaces facing W-E. No credit is achieved.

• CO2 Emission due to Energy Consumption in Public Areas ─ The energy consumption of the operation of lifts, lighting and other services in public areas of Building One is not available.

• Renewable Energy ─ All building energy use is not generated from renewable energy sources.

• Clothes Drying Facilities ─ It is observed that all units have a row of bamboo slots on the external wall of the kitchen for residents to place bamboo poles and dry cloth.

• Natural Ventilation ─ None of the required two analyses was undertaken.

However, all public/circulation areas (corridors and staircases) are open areas and capable of providing adequate ventilation. Therefore, 4 credits are awarded.

• Energy Efficient Lighting in Public Areas ─ Site survey results show that energy efficient lighting equipments are installed in public areas, and under the control of town council with time switching and photoelectric switching lighting control for the lamps in areas where daylight is available.

• Energy Efficient Appliances ─ No certified energy efficient appliance is used in Building One.

• Building Systems Commissioning ─ HDB has implemented the following fundamental best practice commissioning procedures:

 Engage a commissioning team that does not include individuals directly responsible for project design or construction management.

 Review the design intent and the basis of design documentation.

 Incorporate commissioning requirements into the construction documents.

 Develop and utilize a commissioning plan.

 Verify installation, functional performance, training and operation and maintenance documentation.

There is no commissioning report, only the commissioning result e.g. “approval”.

• Energy Consumption on Site ─ No information indicates that a firm commitment is made to require the constructor to set up systems to monitor and report energy consumption resulting from energy use on site and fuel consumption resulting from transport to and from site on a monthly basis.

• Metering and Monitoring ─ Water, gas and electrical sub metering are installed for every unit, and metering for landlord’s electricity consumption in common space/public areas is installed as well.

• Operation and Maintenance Manual ─ Operations and maintenance manual are not provided.

7.3.2.4 Materials & Resources

• Recycled materials ─ No recycled material was used in this building.

• Resource Reuse ─ No resource was reused in the project.

• Rapidly Renewable Materials ─ No rapidly renewable material was used in the project.

• Local/Regional Materials ─ Concrete and sand used by the contractor in this project are from Malaysia and Indonesia, which are within the 800km radius. And concrete constitutes more than 80% of the whole materials used in the project.

• Sustainable Forest Products ─ HDB information shows that durable and reusable formwork systems were not used in this project.

• Green Building Materials ─ Building One did not meet the credit requirement that choosing building materials for 50% of key building elements which have been labeled under the Singapore Green Labeling scheme.

• Ozone Depletion ─ According to HDB architect, not all thermal insulation in building fabric and services are made only from materials with zero ozone depletion potentials. In Singapore, environmental pollution control (ozone depleting substances) regulations were issued by government in 2001 to prohibit importation and exportation of CFC and HCFC (National Environment Agency, 2001). Singapore has already successfully phased out the consumption of CFCs and Halons, and the government will work closely with local industries to move away from HCFC technologies as soon as practically possible (Ministry of the Environment, 1999). Hence one credit is achieved in “Banned by Government”.

• Off-site Fabrication ─ Off-site fabrication was not used in this project.

• No Asbestos ─ According to the architect, no asbestos was used in Building One.

Therefore, this project meets all the credits’ requirements.

• Adaptability and Deconstruction ─ The Design of Building One did not provide spatial flexibility that can adapt spaces for different uses, nor provide flexibility through the choice of building structural system that allows for change in future use.

• Modular and Standardized Design ─ Modular and standardized design was not used in this project.

• Construction Waste Management ─ HDB does not impose an active waste management system on the building contractor at construction stage.

• Storage of Recyclables and Waste Disposal ─ It is observed that neither central waste recycling space at ground level of building nor recycling bin in each floor level is provided in Building One.

7.3.2.5 Indoor Environmental Quality

• Ventilation Effectiveness ─ The building is obstructed by a MRT station and the MRT track on one longer side, and is obstructed by a seven-storey building on the other longer side. No credit is achieved.

7.3.3 Precinct Level