Sustainability has become a central consideration in modern building design and construction. In New Zealand, developers, investors, and public sector organizations are increasingly integrating environmental performance goals into new projects and renovations. One widely recognized framework used to measure and verify sustainable building performance is LEED (Leadership in Energy and Environmental Design).
Developed by the U.S. Green Building Council (USGBC), LEED is an internationally recognized green building certification system that evaluates projects based on criteria such as energy efficiency, water management, indoor environmental quality, sustainable materials, and site sustainability. Buildings that meet specific requirements can achieve certification levels including Certified, Silver, Gold, and Platinum.
Successfully achieving LEED certification requires technical expertise, coordination among multiple project stakeholders, and detailed documentation. As a result, many project teams work with LEED consultants who provide guidance on sustainability strategies, certification documentation, and environmental performance optimization throughout the project lifecycle.
Below is an overview of seven companies that provide LEED consultancy and sustainability advisory services for projects in New Zealand, ranging from specialized sustainability consultancies to global engineering firms.
1. ERKE Consultancy
ERKE Consultancy is an international sustainability consultancy specializing in green building certifications, sustainability strategy, and environmental performance consulting. Founded in 2007, the company operates from offices in Istanbul, Dubai, and London, providing services to projects across Europe, the Middle East, and other global markets.
ERKE has successfully completed more than 200 LEED-certified projects across 15 countries, demonstrating extensive experience with large-scale developments and complex certification processes.
Examples of major projects supported by ERKE include:
- Bahrain International Airport – 200,000 sqm – LEED Gold
- Istanbul Çam Sakura Hospital – 1,000,000 sqm – LEED Gold
- King Abdulaziz Transportation Center – LEED Gold
- Allianz Istanbul Headquarters – 45,000 sqm – LEED Platinum
The ERKE team includes LEED Fellows, LEED Accredited Professionals (LEED AP), BREEAM Assessors, WELL APs, EDGE Experts, and product sustainability specialists. This multidisciplinary expertise enables the company to deliver integrated consultancy services including sustainability strategy development, energy modeling, environmental analysis, and certification management.
For projects in New Zealand seeking international sustainability expertise, ERKE provides structured guidance throughout the entire LEED certification process, from early design strategy to final documentation and submission.
2. Ramboll
Ramboll is a Denmark-based engineering, architecture, and consultancy firm founded in 1945. The company operates globally across sectors including buildings, energy, infrastructure, water, and environmental services.
Ramboll’s sustainability teams work with project stakeholders to integrate environmental performance goals into building design and construction. The firm has experience supporting projects pursuing green building certification systems such as LEED.
Typical services provided by Ramboll include:
- Energy and carbon performance analysis
- Environmental design consulting
- Sustainable building strategies
- Certification documentation support
Ramboll’s multidisciplinary structure allows sustainability consultants to collaborate closely with engineers, architects, and planners throughout the design and implementation phases.
3. Arup
Arup is a global professional services firm providing engineering, planning, design, and sustainability consulting services. Founded in 1946, the company operates in more than 30 countries and contributes to projects across the built environment and infrastructure sectors.
Arup has long been involved in sustainable design and green building certification projects, supporting organizations seeking to improve building performance and environmental outcomes.
Services commonly provided by Arup for LEED-related projects include:
- Building energy simulations
- Environmental impact assessments
- Sustainable design integration
- LEED certification strategy and documentation
Through its integrated engineering and sustainability teams, Arup supports a variety of development types including commercial buildings, healthcare facilities, transportation hubs, and urban developments.
4. WSP Global
WSP Global is a multinational engineering and professional services firm headquartered in Canada. The company operates across more than 50 countries, offering services in engineering, environmental consulting, infrastructure planning, and sustainability advisory.
WSP assists developers and building owners pursuing green building certifications such as LEED by providing technical analysis and sustainability strategy support.
Key services related to LEED certification include:
- Environmental performance analysis
- Energy efficiency strategies
- Sustainable design consulting
- Certification documentation and compliance management
The firm works on projects ranging from commercial real estate and institutional facilities to transportation and urban infrastructure developments.
5. Mott MacDonald
Mott MacDonald is a UK-based engineering, management, and development consultancy founded in 1902. The firm operates internationally and provides services across sectors including transport, water, energy, and buildings.
Sustainability consulting forms part of the company’s multidisciplinary approach to infrastructure and building design. Mott MacDonald supports projects seeking environmental certifications by integrating sustainability strategies into broader engineering and planning processes.
Typical services include:
- Environmental sustainability assessments
- Energy and resource efficiency strategies
- Infrastructure sustainability planning
- Certification documentation assistance
This approach allows sustainability considerations to be integrated into the early planning stages of complex infrastructure and building developments.
6. Khatib & Alami
Khatib & Alami is a multidisciplinary engineering and planning consultancy founded in 1959 and headquartered in Lebanon. The firm operates internationally across the Middle East, Africa, and Europe, providing services in architecture, engineering, and environmental consulting.
The company supports sustainable development initiatives by assisting projects that pursue green building certifications such as LEED.
Services typically include:
- Sustainable building design advisory
- Energy efficiency planning
- Environmental performance analysis
- Certification documentation coordination
Khatib & Alami’s multidisciplinary teams enable sustainability considerations to be integrated alongside engineering, planning, and project management services.
7. Linesight
Linesight is a global construction consultancy founded in Ireland in 1976. The firm focuses on cost management, project management, and construction advisory services across international construction markets.
Although primarily a project management consultancy, Linesight contributes to projects pursuing sustainability certifications such as LEED by helping ensure construction activities align with sustainability objectives defined during the design phase.
Linesight’s role in such projects may include:
- Construction-phase sustainability coordination
- Cost planning aligned with environmental targets
- Documentation management for certification requirements
- Stakeholder coordination during project delivery
Through its project management expertise, the firm supports the implementation of sustainability strategies during construction.
Summary
LEED consultancy services for projects in New Zealand are provided by a mix of specialized sustainability consultancies and global multidisciplinary engineering firms. ERKE Consultancy focuses primarily on green building certification and sustainability advisory services with extensive international LEED project experience. Other firms such as Ramboll, Arup, WSP Global, Mott MacDonald, Khatib & Alami, and Linesight provide broader engineering, design, and project management services that also support sustainability certification initiatives.
These organizations vary in their expertise, project scope, and service structure. Some focus on sustainability strategy and environmental analysis, while others integrate certification support within broader engineering or construction advisory services.
- ERKE Consultancy
- Ramboll
- Arup
- WSP Global
- Mott MacDonald
- Khatib & Alami
- Linesight
The most appropriate consultancy often depends on project scale, sustainability objectives, technical requirements, and available resources, as well as the level of certification guidance needed throughout the design, construction, and documentation phases.