Singapore

Summary

Singapore’s mandatory code for residential and non-residential buildings applies to all new building works, which include a gross floor area of at least 2,000 m2. Energy performance criteria are addressed by the level of environmental performance outlined according to a points based system, which will allow a project to decide which efficiency initiatives should be included in order to meet the 50 point minimum requirement. The code does include some mandatory prescriptive elements for both building types, including thermal envelope performance, HVAC efficiency, lighting, air-tightness and sub-metering.

The Code was implemented in 2008 and largely adopted the voluntary 2005 Green Mark criteria, which was released to drive Singapore’s buildings to be more environmentally friendly. The Green Mark points system encompasses a number of dynamic suggestions to improve overall environmental performance of buildings including, indoor air-quality and comfort, renewable energy, water efficiency, waste reduction, public transport accessibility, levels beyond minimum standard and environmental management practice.

General Information

Full Title of Code

Singapore: Code for Environmental Sustainability of Buildings

Year of Adoption

2008

Date of Enforcement

Tuesday, April 1, 2008

Authority in Charge

Urban Redevelopment Authority (URA) and the Building and Construction Authority (BCA).

Link

http://www.bca.gov.sg/envSuslegislation/others/env_Sus_Code.pdf

Remit of Code

Geographical Coverage

Singapore

Code set at:

National Level

Coverage

Coverage of Building Code:

  • Residential buildings
    • One family
    • Multiple family buildings
      • Slightly different requirements for buildings with a mixed use.
  • Commercial buildings
    • Offices
    • Retail and wholesale
    • Hotels
    • Hospitals
    • Educational buildings
    • Green Mark Platinum award is the highest award under the BCA Green Mark Scheme. A typical Platinum will need to score at least 90 points and they will be at least 43% more efficient as compared to 2005 standard.
  • Public buildings
    • Offices
    • Hospitals
    • Educational buildings

GBPN Climate Classification:

  • Cooling Based
  • Warm and Humid

Type of Building Code

Type of Building Code:

  • Model code, frame or actual code:
    National 'certification scheme' code. The environmental sustainability standard of building development is determined by the level of environmental performance and the numerical scores (i.e Green Mark points) achieved in accordance with the degree of compliance with the applicable criteria using the scoring methodology as specified in the code.
  • Prescriptive Codes:
    Energy performance criteria are addressed by the level of environmental performance outlined according to a points based system, which will allow a project to decide which efficiency initiatives should be included in order to meet the 50 point minimum requirement. The code does include some mandatory prescriptive elements for both building types, including thermal envelope performance, HVAC efficiency, lighting, air-tightness and sub-metering.
  • Energy Declaration:
    Partially, there is no energy declaration requirements for buildings upon completion. However, building owners of existing buildings are required to submit their building information annually to BCA under the Environmental Sustainability regulation of our Building Control Act. The energy data of these buildings would be drawn directly from the utility suppliers.

Energy Covered

Basis for Energy Requirements:

  • Overall performance frame
  • Primary Energy
  • Life Cycle Assessment considered (embedded energy):
    Partially, Building Energy Efficiency Master Plan (BEEMP) “contains programs and measures that span the whole life cycle of a building” and are apportioned among six programs.

Energy Uses and Functions Covered by the Code:

  • Cooling
  • Dehumidification
  • Ventilation
  • Thermal bridging
  • Hot water
  • Building parts (lifts, pumps etc)
  • Technical installations
  • Lighting
  • Design, position & orientation of building
  • Heat recovery
  • Passive solar
  • Passive cooling
  • Natural ventilation
  • Solar protection
  • Daylighting requirements
  • Renewable Energy (solar, PV, others):
    Encourage the use of renewable energy sources in buildings, 20 bonus points can be obtainable through incorporating renewable energy in both residential and non-residential buildings.

Enforcement

Enforcement Status of Code:

Mandatory

Type of Enforcement:

  • Local enforcement
  • Central enforcement
  • Accreditation of applicants
  • Post Occupancy control

On-site Inspections Occur

  • During construction
  • Post completion
  • Post occupancy

Certification to Support Enforcement of Code:

  • Energy Performance Certificate support BC
  • Positive labeling for building beyond the minimum BC level
  • Energy Offsets/Green Certificates
    • Number of certified buildings:
      232
  • Inspection of HVAC systems

Penalties for Non-compliance:

  • Fine
  • Refusal of permission to occupy
  • Refusal of permission to construct

Measures Supporting Enforcement:

  • Commissioning requirements
  • Mandatory Computer Modeling
  • Training of Inspectors

Values for New Buildings

Residential Buildings - Non Air-Conditioned

GBPN Climate Classification

Cooling based

Coefficient for Comparison of Climate Zones

0.00

MeanMinMax
HDD (°C)000
CDD (°C)356835683568

Humidity

70-80%

U-Value (W/m²K)
Roof0.8Roof21.5
Wall-Wall2-
Floor-Floor2-
Window-Window2-
Others---
Overall U-Value---
Window1Window2
G Value/SHGC--
Visible Transmission--
Percent--

Other Requirements Set for:

  • Efficient Lighting

Non-Residential Building - Air Conditioned

GBPN Climate Classification

Cooling based

Coefficient for Comparison of Climate Zones

0.00

MeanMinMax
HDD (°C)000
CDD (°C)356835683568

Humidity

70-80%

U-Value (W/m²K)
Roof0.5Roof21.2
Wall-Wall2-
Floor-Floor2-
Window-Window2-
Others---
Overall U-Value---
Window1Window2
G Value/SHGC--
Visible Transmission--
Percent--

Other Requirements Set for:

  • Ventilation:
    Minimum efficiency requirements of the air-conditioning system in Commercial buildings
  • Technical HVAC systems
  • Efficient Lighting

Non-Residential Buildings - Non Air-conditioned

GBPN Climate Classification

Cooling based

Coefficient for Comparison of Climate Zones

0.00

MeanMinMax
HDD (°C)000
CDD (°C)356835683568

Humidity

70-80%

U-Value (W/m²K)
Roof0.8Roof21.5
Wall-Wall2-
Floor-Floor2-
Window-Window2-
Others---
Overall U-Value---
Window1Window2
G Value/SHGC--
Visible Transmission--
Percent--

Other Requirements Set for:

  • Efficient Lighting

Code History and Future Targets

General Process in Setting Requirements:

  • How far in advance are future targets set?:
    2030
  • Stakeholders are informed of future targets far in advance

Zero Energy Targets:

  • All end uses are not included
  • There is a realistic roadmap in place:
    First and Second Green Building Master Plan. The first master plan emphasized greening new buildings and major renovations, the second develops a road map covering new buildings, existing buildings, and “beyond” buildings 
  • National Target date for nZEB:
    Partially, Greening” 80% of its buildings by 2030.
  • Special Requirements for public buildings:
    All new public building with air-conditioning areas more than 5,000m2 will need to achieve Green Mark Platinum and all existing public building with air-conditioning areas more than 10,000m2 will need to achieve Green Mark GoldPlus by 2020.

Number of Earlier Codes

0

Current Defined Levels beyond Minimum Standard (present code)

3

Multiple set of data:

  • Levels beyond minimum:
    3
  • Year historic or aspirational codes (planned) :
    2012
  • Baseline (actual code if nothing else):
    1990
  • Actual level of energy consumption in target
    • Relative target in percent:
      0
  • Primary Energy Performance Frame Residential:
    50 point Green Mark score
    Minimum 50 point Green Mark score, Green Mark Certified rating.
  • Primary Energy Performance Frame Non-Residential :
    50 point Green Mark score.
    Minimum 50 point Green Mark score, Green Mark Certified rating.

Supporting Measures

Incentives/Rewards to Encourage People to go beyond Minimum Level?

Building Retrofit Energy Efficiency Financing (BREEF) Scheme - provides credit facilities for commercial building owners, MCSTs and Energy Services Companies to carry out energy efficiency retrofits under an Energy Performance Contract arrangement, Enhanced Green Mark Incentive Scheme for New Buildings (GMIS-NB), Green Mark Gross Floor Area Incentive Scheme (GM-GFA), Green Mark Incentive Scheme - Design Prototype (GMIS-DP) and Green Mark Incentive Scheme for Existing Buildings (GMIS-EB).

Involvement of Stakeholders in the Development of Codes

Key stakeholders are sought at the code drafting stage, pre-launch stage and after code has been launched, Such industry perspectives are usually co-ordinated by the Spring Singapore Standard or the statutory board concerned.

Level of Training Provided to Stakeholders Following Implementation of Code?

Industry associations like IES, PEB, SEAS or academic institutions like SEI, BCAA, polytechnics normally may run courses/briefings to help the industry practitioners keep abreast with the new code developments/amendments.

Provision of Appropriate Information for General Public

Appropriate information is provided to the public.

Supporting Certification Schemes

The Singapore government has released a green building certification program called Green Mark. It encompasses new and existing buildings in both the residential and commercial sectors and has five main assessment criteria: 1. Energy efficiency 2. Water efficiency  3. Environmental Protection  4. Indoor Environmental Quality 5. Other.  10-30% energy savings.

Codes Free to Access?

http://www.bca.gov.sg/envSuslegislation/others/env_Sus_Code.pdf