Need for green building in Lagos State.

1. GREEN BUILDINGS: NEED FOR
SUSTAINABLE CONSTRUCTION IN LAGOS,
NIGERIA.
LASISI, Adedoyin K.S.(MNES, MSAN, MICCON)
MINISTRY OF THE ENVIRONMENT AND WATER RESOURCES
234-8028476147
ladedoyin@yahoo.com
http://ladedoyin.blogspot.com/

2. “The building and construction sector has enormous
potential to reduce global greenhouse gas
emissions, water stress and biodiversity loss.
Designing buildings with fewer or alternative
materials, and recycling construction materials
are among the most promising strategies to
reduce emissions.”
UNEP,2020

3. Presentation Objectives:
 Discuss the aims and objectives of Green Buildings
 Environmental Impacts
 Green building and energy savings
 Relevance for Environmental Protection
 Next steps
 Conclusion

7. How traditional Buildings
Construction Affects the Environment
1. Energy Use
 Believe it or not, according to the U.S. Green Building
Council (USGBC), buildings account for an average of 41% of the
world’s energy use. The two other biggest energy consumers
don’t even come close. The industrial sector accounts
for 30% while transportation accounts for 29%.
2. Impact on the Air
 American building construction is responsible for a huge
percentage of the greenhouse gas emissions that have been
affecting climate change. In fact, the buildings are responsible
for 38% of all CO2 emissions.

8. 3. Water Use
 Buildings are responsible for not just a large percentage of the
world’s water use, but a large percentage of wasted water as
well. It’s estimated that buildings use 13.6% of all potable
water, which is roughly 15 trillion gallons of water per year
4. Construction Materials
 The materials used in building construction also have a serious
impact on the environment. First of all, many of the materials
used in the construction of buildings are produced in a non-
sustainable way. The factories that make the materials produce
damaging CO2 emissions.

9. 5. Waste From Building Construction and Demolition
 The destruction and renovation of buildings result in a
large amount of waste. Building waste often includes
concrete, metals, glass, plastics, wood, asphalt, bricks
and more. This waste is often disposed of in either
landfills or incinerators. Not only does this pollute the
land and the air, but the transportation required to
remove such waste has a major impact on the
environment as well

10.  40% of Global Energy Consumption is
building related
 50% of Global Green House emission is due
to Buildings
 50% of material resources taken from
nature are building related
 Over 50% of National waste production
comes from the building sector

11. Would you Continue like this----?
Unknowingly, architecture and
building community is responsible
for almost half of green emission
annually.

12. What Green Building
 Green building (also known as green
construction or sustainable building)
refers to both a structure and the
application of processes that
are environmentally
responsible and resource-
efficient throughout a building's life-cycle:
from planning to design, construction,
operation, maintenance, renovation, and
demolition.

13. LAS VEGAS SAND COOPERATION

15.  The ‘GREEN BUILDING’ concept is gaining
importance in various countries, including
Nigeria. These are buildings that ensure
waste is minimized at every stage during
the construction and operation of the
building, resulting in low costs, according
to experts in technology.
 A Green building is a structure that is
environmentally responsible and resource
efficient throughout it’s life cycle.

16.  Green building are designed to reduce the
overall impact of the built environment on
human health and the natural environment
by :
 Efficiently using energy, water and other
resources.
 Protecting occupant health and improving
employee productivity.
 Reducing waste, pollution and environment
degradation

17. GOALS OF GREEN BUILDING
 Green building brings together a vast array of
practices and techniques to reduce and ultimately
eliminate the impacts of buildings on the
environment and human health. It often
emphasizes taking advantage of renewable
resources, e.g., using sunlight through passive
solar, active solar, and photo voltaic techniques
and using plants and trees through green roofs,
rain gardens, and for reduction of rainwater
runoff.

18. Fundamental principles
 Structure Design Efficiency,
 Energy Efficiency,
 Water Efficiency,
 Materials Efficiency,
 Indoor Environmental Quality Enhancement,
 Operations and Maintenance Optimization,
 and Waste and Toxics Reduction

19. Illustration of Green Building Practices

20. Regulation and operation
• As a result of the increased interest in green building concepts
and practices, a number of organizations have developed
standards, codes and rating systems that let government
regulators, building professionals and consumers embrace
green building with confidence. In some cases, codes are
written so local governments can adopt them as bylaws to
reduce the local environmental impact of buildings.

21. • Green building rating systems such as BREEAM (United
Kingdom), LEED (United States and Canada), DGNB (Germany),
CASBEE (Japan), and VERDEGBCe (Spain), GRIHA (India) help
consumers determine a structure’s level of environmental
performance. They award credits for optional building features
that support green design in categories such as location and
maintenance of building site, conservation of water, energy, and
building materials, and occupant comfort and health. The
number of credits generally determines the level of
achievement

22. RELEVANCE FOR ENVIRONMENTAL
PROTECTION
• Energy (Energy Use, Energy Source, Clean Energy Transport)
• Water (Water Use, Water Filtration, Human Waste, Ground Water
Recharge)
• Landscape (Integrated Pest Management, Green Space, Native Plantings
and Wildlife Habitat)
• Materials (Recycled Materials, Efficient Materials, Salvaged Materials,
Local Materials, Durable and Low Maintenance)
• Waste (Recycling and Composting Facilities) ° Construction Practices
(Construction Waste, Reuse Topsoil, Vegetation and Watercourse
Protection)
• Indoor Environmental Quality (Air Pollutant Emissions, Ventilation
Effectiveness and Air Filtration, System Commissioning and Cleaning,
Daylighting) ° Economic Performance (Life-Cycle Assessment, Capital Cost
Accounting)

23. •DO WE HAVE ANY IN NIGERIA ?

26. • First environmentally certified commercial building in Nigeria
• – LEED certified for both design and construction
• – Between 30-40% reduction in energy use (compared to
common practice building in Lagos)
• – Use of natural light and natural ventilation (mixed mode) to
minimise energy demand
• – Sun pattern driven building orientation to minimise solar
exposure and energy requirements for cooling
• – Automatic presence detectors/sensors and high

27. • High level of indoor air quality and occupant's thermal and
visual comfort increased by ventilation rates, quality of
materials and views out
• – Heat recovery through the centralised fresh air supply system
(cooling)
• – Potable water demand minimised though rain water
harvesting and condensate recovery from cooling units
• – Use of water harvested for toilet flushing and irrigation
• –

28. • Motion sensor-controlled hand-wash basins and urinals
contributing to reducing potable water demand
• – Storm water attenuation to accommodate a one in a twenty
year storm
• – Attenuation tank proposed to limit discharge/flow rates of
foul and storm water to the local sewers in Lugard Road
• –

29. Green Building and Lagos Themes agenda
• T.H.E.M.E.S, an acronym for this administration’s six strategic
development agenda namely:
• Traffic Management and Transportation,
• Health and Environment,
• Education and Technology,
• Making Lagos a 21st Century Economy, Entertainment and
Tourism as well as
• Security and Governance.

30. GREEN BUILDING CERTIFICATION AND
THEMES AGENDA.
BUILDING RATING OR
CERTIFICATION SYSTEM
MANAGING ORGANIZATION ISSUES / AREAS OF FOCUS
Building Research Establishment
Environmental Assessment
Method (BREEAM)
BRE Global Performance in:Energy
Health & Well-being
Transport
Water
Materials
Waste
Land Use & Ecology
Management
Pollution
No prerequisites for In-Use

31. BUILDING RATING OR
CERTIFICATION SYSTEM

32. NEXT STEPS
• Training and Certification of Architects, Contractors and Interior
Designers.
• Update of Building Codes to Encourage Use of Green Energy
Practices.
• Integrative Approach
• Government policy direction

33. CONCLUSION
• Increase awareness of Green Building Strategies
• Training of Professional and Certification
• Establishment of a Green Building body as has been done in
various parts of the world.
• Updating of Building Codes to Take Encourage Adoption of
Green Building Practices. (E.g. Increase Rain Water Harvesting)
• Wholistic Approach to the Design and Construction of Buildings
with Assessment done over the Lifetime of a Building.
• Incorporate Green building into approvals in MOE
&WR,MPPU&D, Housing etc.

34. THANK YOU