Founded by Gary Wertheimer in 2007, GIW is a multi-disciplinary team of passionate sustainable design professionals. We work closely with our clients in order to deliver streamlined solutions, approaching every project with the utmost professionalism, diligence and commitment in the delivery of ESD services.
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Team GIW
B.App Sci (Construction Management).
MSc.Renewable Energy & Architecture. (UK)
MSc.Renewable Energy & Architecture. (UK)
Gary Wertheimer is an ESD consultant with broad experience in the areas of statutory planning ESD Reporting submissions, Regulatory compliance reporting and existing building retrofits. Gary has built up a wealth of knowledge, experience and industry rapport based on a proven track record of delivering ESD excellence.
Given his background in project and development management, Gary is acutely aware of the total development process. He has solid working knowledge of the Building Act, Regulations and NCC, and is well attuned to delivering consulting services to the highest professional standard. He leads a multi-disciplinary ESD consultancy passionate about delivering tangible expressions of ESD within the built environment.
B.Sc (Science, Business and Innovation)
M.Sc (Sustainable development)
M.Sc (Sustainable development)
Ines Buskermolen is an ESD consultant with experience in sustainability consulting, renewable energy technologies, lifecycle assessments and innovation management. Ines brings to the team an expertise in state-of-the-art and future ESD technologies.
Ines has been involved in multiple successful town planning applications. She contributes to early stage design review, identifies inherent ESD opportunities that are both economically feasible and sustainable. During this process, she engages with all involved sub consultants to achieve a well-balanced and practical result. She has developed expertise in sustainable reporting and BESS assessments. Ines has contributed to the development of the BESS tool and continues to be involved to optimise the use and performance of the tool.
B.Eng (Mechanical)
M.Eng. (Sustainable Energy)
M.Eng. (Sustainable Energy)
Niraj Patel is an ESD Engineer with experience in services engineering on large scale commercial building projects. He is driven by a passion for energy efficiency and green building technologies. Niraj has developed an expertise in building simulation energy modelling including JV3, energy auditing, NABERS assessments and existing buildings retrofit design solutions.
Niraj offers a technical expertise in research, analysis and appropriate adoption of innovative engineering design solutions and system technologies. In particular, he has an aptitude for architectural integration of renewable energy technologies, energy efficient services, natural ventilation and solar control strategies. He has developed experience in a variety of property sectors including some of Melbourne’s most iconic buildings. He has had particular exposure to multi-unit residential and aged care developments. Additionally, many of projects that he has been involved with have required Green Star design or assessment. As part of his Masters program, Niraj completed a research project with the support of AIRAH on the effectiveness of co/tri-generation systems in commercial buildings.
Ciaran is a Senior ESD Consultant specialising in building physics, passive design, and embodied carbon. He is passionate about minimising the environmental impact of the built environment while creating comfortable, livable spaces for people to work and thrive in.
With extensive experience across the design and planning process, Ciaran has contributed to projects ranging from town planning applications to detailed building energy modelling and energy assessments. He has developed numerous Building Energy Models to support energy compliance, assess overheating risks, and enhance occupant comfort.
B.Eng. (Mechanical)
M. (Energy Efficient and Sustainable Buildings)
Mareena Saleem is an ESD Engineer with experience in building services and environmental engineering. ESD has provided the means to merge her passion for both sustainability and engineering.
Mareena has been involved within town planning applications through to building simulation energy modelling and Section J assessments. Through her passion she continues to develop a wide and thorough understanding of these processes.
Bachelor of Technology (Chemical Engineering)
Masters of Engineering (Sustainable Energy)
Krunal Vyas is an ESD Engineer with a background in the solar industry. He has a good working knowledge of building services and has developed an expertise in Section J assessments, encompassing building simulation energy modeling and Deemed-to-Satisfy assessments. Krunal is dedicated to developing environmentally responsible and energy-efficient buildings that align with regulatory standards. His passion lies in shaping a sustainable future through innovative design and engineering solutions.
Sam is a graduate sustainability consultant with a background in interior architecture. She has a passion for climate-resilient and self-sufficient buildings. She is enthusiastic about energy simulations, daylight modelling, and energy ratings. As a Green Star Accredited Professional, Sam is dedicated to advancing sustainability in the built environment, ensuring that buildings are not only energy-efficient but also adaptable to future climate challenges. Her expertise in sustainability strategy and commitment to creating meaningful change drive her efforts to promote long-term environmental improvements and community resilience. Sam's goal is to help produce buildings that are sustainable, liveable, and aesthetically pleasing.
B.Eng (Hons) - Mechanical
B.Design (Hons) - Industrial Design
B.Design (Hons) - Industrial Design
Max is an ESD engineer with extensive experience in delivering sustainable design for large scale residential developments. He is an adaptable jack-of-all-trades that brings a wide skill-set and knowledge base to all projects he manages. Max comes from a product design engineering background, and brings a design lens to finding and resolving innovative solutions to project challenges and objectives.
As a Green Star accredited professional, Max is dedicated to developing and implementing tailored sustainability strategy for the built environment. He is passionate about fostering liveable, long-lasting, valuable environments while equally minimising the upfront costs of the built environment.
BEng (Hons) Civil & Construction Engineering
M.Sc. (Energy Efficient & Sustainable Buildings)
M.Sc. (Energy Efficient & Sustainable Buildings)
Sachini is a graduate sustainability engineer with a background in civil engineering. Her passion lies within sustainability in the built environment, particularly in improving energy efficiency of residential buildings through various ESD applications. She actively contributes expertise in energy ratings, water-sensitive urban design, and sustainable management plans during town planning stages. As an Accredited Green Star Professional, she integrates principles of climate action, resource efficiency, and health & wellbeing into sustainable design projects. She firmly believes in collective action for change and is driven to collaborate on projects that create a positive impact on our planet and future through comprehensive ESD services.
B.Arch (Architecture)
M.Sc. (Energy Efficient and Sustainable Building)
M.Sc. (Energy Efficient and Sustainable Building)
Tejal is a graduate sustainability consultant with a background in architecture and a strong focus on improving the performance of buildings. She is driven by her passion for enhancing the built environment to provide users with a comfortable and efficient spaces. Her work spans across NatHERS energy ratings, as-built verification reporting, and Water Sensitive Urban Design (WSUD) inputs for different projects.
As a Green Star Accredited Professional, she combines technical capability with a passion for sustainable design, continually expanding her expertise to deliver thoughtful, data-driven ESD solutions. Tejal is dedicated to contributing to a more resilient, aesthetically pleasing and environmentally responsible built environment.
B.Arch (Architecture)
M.Sc. (Energy Efficient and Sustainable Building)
M.Sc. (Energy Efficient and Sustainable Building)
Atharva is a graduate sustainability consultant with a background in architecture and a strong focus on improving the energy performance of residential buildings. His work spans NatHERS energy ratings, daylight assessments, as-built verification reports, and Water Sensitive Urban Design (WSUD) inputs for residential projects. He provides practical recommendations and sustainability improvements tailored to each project, helping clients achieve better environmental and performance outcomes. Through hands-on experience across a variety of residential assessments, he continues to build his knowledge and apply new learnings to deliver thoughtful, effective ESD solutions. Atharva is committed to driving positive environmental outcomes and is passionate about supporting projects that contribute to a more sustainable, resilient future.
B.S Mechanical Engineering
Kimberly Paris is an ESD Engineer with a background in ESD and building services. She supports the team in undertaking Section J, NatHERS Assessments, and Daylight studies. She believe that shaping or improving built environment plays a vital role in creating a sustainably, and responsibly built projects for the community and future generations.
Melanie Lim is an indispensable member of the GIW Environmental Solutions team, serving as the right-hand woman to the Director. Renowned for her all-around expertise and dedication, Melanie is the glue that holds the business together. Her legendary work ethic and cool demeanor make her a standout in the industry. As a true professional, she ensures seamless operations and contributes significantly to the company’s success.
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