Our Team

JBA’s strength lies in our ability to combine the skills of our multidisciplinary team to deliver a truly integrated service. Our staff are passionate and innovative professionals in their respective fields, while the organisation is committed to excellence through coordination and detail.

Dr Josh Byrne

BSc(Hons)(EnvSc), DipHort, PhD


Josh is the Director of JBA and is a widely respected sustainability practitioner and communicator well known for his work on ABC TV’s Gardening Australia program. He has a unique and integrated approach to environmental design, community engagement and environmental communication projects, with over 20 years experience in the landscape design, sustainability and media industries.
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Josh regularly consults to West Australian state agencies such as Water Corporation, DevelopmentWA and the Metropolitan Redevelopment Authority on matters relating to urban water management, environmental technology and design, and has contributed to projects around Australia.

Josh is a Research Fellow with Curtin University’s Sustainability Policy Institute and the CRC for Low Carbon Living, and an Adjunct Associate Professor with the School of Civil and Environmental Engineering at the University of New South Wales. His research activities span high performance housing, water sensitive design and sustainable urban developments.

Josh is a recipient of the Australian Water Association’s WA Water Professional of the Year Award, Murdoch University’s Distinguished Alumni Award for Science and Engineering and the WA Planning Industry of Australia Planning Champion Award. He is Patron of the Conservation Council of WA and Sustainable Gardening Australia, an Advocate for the national collaborative 202020 Vision urban greening initiative and an Ambassador for the Living Smart household sustainability program and Nature Play WA.

Morgan Gillham

General Manager

Morgan Gillham is JBA’s General Manager overseeing the day-to-day operations of the company and its work streams. Morgan commenced work with the company in 2010 and as JBA’s Senior Project Manager he has delivered numerous high profile projects for various Federal, State and Local Government Departments.
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Morgan worked on the Sustainable Landscape Management Plans for the Department of Defence, the MRA’s Perth Cultural Centre Revitalisation Project, which encompasses the Urban Orchard, the Urban Wetland and Musical Playspace, and a number of important water efficiency projects for the Water Corporation.

Morgan’s passion for bespoke nature based playspaces is evident in his work on the Kwinana Adventure Park, the Yallingup Foreshore and school nature play areas with the Department of Education.

Morgan has specialist expertise in commercial irrigation and hydraulic systems, which ensures that JBA’s fit for purpose irrigation systems are designed for maximum efficiency, benefiting our clients and the landscapes they service.

Paul Verity


Principal – Landscape Architecture and
Urban Design

Paul’s work intertwines the disciplines of Urban Design and Landscape Architecture. He comes from a strong theoretical research base and he lectured in Landscape Architecture, Urban Design and Environmental Systems at the University of Western Australia.
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This multidisciplinary perspective enables Paul to combine lateral and critical thinking with design and scientific principles to foster designed outcomes that benefit the client, community, and the environment at large.

Hannah Lindsay


Senior Landscape Architect

Hannah enjoys challenging the way people inhabit and engage with their environment, especially within the urban context. She has a thoughtful approach to site and context analysis, which is combined with a passion for creating unique spaces. Her combination of creativity and attention to detail makes her a valuable design lead and the perfect team member to run JBA’s Melbourne office.
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Hannah has worked on numerous high-profile projects for the likes of DevelopmentWA, Water Corporation and many metropolitan and regional councils. Projects include residential infill developments, water parks, feature playgrounds, sporting reserves and streetscapes.

Hannah graduated from RMIT University in Melbourne in 2013, during which time she completed a semester abroad at Arizona State University, USA.

Since working with JBA Hannah has developed a strong sense of responsibility to design for environmentally sustainable outcomes, adding to her passion for culture and heritage. Hannah is also fully aware that she works among a knowledgeable, supportive and creative team, that foster her curiosity and willingness to challenge built-environment norms while using design as a tool to create a better future.

Dr Jen Lorrimar-Shanks

Architect(ARB UK), BAppSc, BArch(Hons), PhD, WELL AP

Senior Designer

Jen is a passionate and creative designer whose aim is to craft environments that enhance the experience of their users, benefit the community and reduce adverse environmental impact on the planet.
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Her experience is in developing place-specific, people-centred, sustainable, evidence-based design responses – from single residential to strategic sustainable urbanism. She has undertaken community engagement and co-design, developed masterplans for eco-villages, produced sustainability strategies, assessed buildings against sustainability frameworks, and delivered highly sustainable built projects. She has extensive experience in developing sensitive responses to significant historic, cultural and landscape assets.

Jen has expertise and specialist qualifications in sustainability and health and wellbeing. She has authored academic publications on sustainability and urbanism, and created output for health and wellbeing taskforces. She is a qualified WELL Building Standard AP and has extensive knowledge of how the designed environment impacts occupants and users and how it can be optimised for human health and wellbeing.

Cathryn Kohn

BLArch, ADipMus

Senior Landscape Architect

Cathryn (Cat) is a highly experienced Landscape Architect. Her design ethos focusses on creating tangible social and environmental outcomes. She specialises in detail design, materials and documentation of projects.
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Cat has worked on a wide variety of project types and her ability to learn and adapt in combination with her eye for detail and her problem solving skills are an asset. She also has a flair for planting design and revels in combining colours and textures in her Australian native-dominated planting designs. Alongside her creativity, she has a methodical approach to work, which influences and is influenced by her previous role as a CAD Documentation Manager.

Cat began her landscape architecture career in Melbourne in 1999 after completing her degree in Perth and has been based in Melbourne ever since. While maintaining her ‘other’ career as a musician, she has attained a wealth of experience from her work on high profile landscape architecture, streetscape and urban design projects in Victoria and Western Australia.

Asile Wong


Senior Landscape Architect

Asile is a highly skilled designer who is experienced in urban design, landscape architecture, and furniture design. This includes 3D modelling and printing skills, hand drawn & computer-aided design/documentation experience.
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His experience has been gained working on international and Australian projects, focusing on high-end commercial, private and public residential developments, and master-planning/urban design developments. He has also contributed to key research-driven projects, urban design guidelines, and land-scape policy-making in Singapore.

Asile has practical experience supervising the building of projects through to practical completion as well as overseeing the project management and construction coordination. He has knowledge of South-east Asian & Western Australian plants and a thorough understanding of the Australian Standards and BCA code knowledge.

He graduated from the University of Western Australia and had completed a semester abroad at the University of Copenhagen (Denmark) pursuing Urban Design.

Michal Carder


Landscape Architect

Michal has a deep enjoyment and flair for research, history and imbuing design with a sense of place. She has an excellent knowledge of West Australian, Australian and exotic plants and their uses within the Landscape, and a passion for sustainable and ecologically sensitive design and its role in conserving and growing our urban, suburban and rural eco-systems.
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During her time at Josh Byrne & Associates (JBA) Michal has worked with numerous local WA government organisations to deliver high quality public open space with detailed planting designs. Michal has also supported the JBA Landscape Architecture team to deliver larger more complex projects, such as Broome Town Beach redevelopment and the Wharf Street Next Generation Park.

Michal’s focus is on developing valuable local eco-systems and vibrant community areas. Her solid experience in the Autocad and Adobe software suites allows her to easily illustrate these concepts while achieving the desired outcomes.

Michal worked in the horticulture industry after completing a Bachelor of Landscape Architecture at the University of Western Australia. This was the outcome of a long-standing desire to direct her career into an industry that is personally meaningful while also making a valuable and dynamic contribution towards a thriving ecological and social environment. Prior to this Michal had a long term career within the finance industry.

Michal is excited with the opportunities presented at JBA who champion her ideals for the industry, in particular, the transformation of space and place for the betterment of the environment, society and the individual.

Joy (jinxin) Zhang


Landscape Architect

Joy has a passion for creating meaningful and sustainable landscapes. Her experience travelling the world and her background in finance, research and design means that she approaches landscape architecture in a unique way.
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Joy has completed a broad range of work including high-profile, commercial landscape projects in China, as well as research for the University of Melbourne. During this work, Joy gained experience modelling and testing different environmental scenarios using ANSYS engineering simulation and 3D design software and computational fluid dynamics (CFD).

Joy is skilled in AutoCAD, Rhino, SketchUp, ArcGIS and the Adobe Creative Suite, and she has advance hand drawing skills. She completed her Master of Landscape Architecture in Melbourne and has studied in India, France, Canada and China.

Joy’s range of experience and passion for research-based design makes her a valuable member of the JBA design team. Similarly, she appreciates the opportunity to develop holistic solutions to landscape environmental issues which showcase design thoughtfulness and innovation.

Mark Taylor


Principal – Built Environment Sustainability

Mark is an expert in creating strategies that support local government, state agencies and large firms to set and achieve stretch targets in sustainability.
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He and his team work collaboratively with clients to discover the opportunities that emerge through a multidisciplinary approach to the fields of sustainability. This results in sustainability advice that improves energy, resource and water efficiency in the built environment, as well as liveability.

Mark has worked on built environment sustainability projects throughout Australia, promoting newly emerging holistic sustainability frameworks, such as One Planet Living and the Living Building Challenge.

He advises on retrofitting, NABERS and energy efficiency, and he has project experience with the U.S. based LEED framework. Mark has conducted extensive work with the Green Building Council of Australia, and he has provided built form sustainability advice on a broad range of project types throughout metropolitan and regional Australia.

Mark sits on the Urban Development Institute of Australia (UDIA) management board for the EnviroDevelopment framework in Western Australia. He assesses EnviroDevelopment projects, advises on management of the assessment tool and he contributes to UDIA WA’s wider position on sustainability.

Melissa McGrath

BSc(Hons), GradCertUrbDesign


Melissa joined JBA in 2017 and she is a skilled researcher who has worked with Australian communities in a variety of contexts to solve complex environmental and land use issues.
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Mel has a Graduate Certificate in Urban Design from the Australian Urban Design Research Centre at the University of Western Australia (UWA) and a Bachelor of Science with Honours in Geography from UWA. Melissa’s focus is often on community engagement, trying to understand the barriers and drivers of behaviour change and supporting governance arrangements to better inform decision making, project implementation and policy formation.

D’arcy Hodgkinson

BA (Broad)

Communications Manager

D’arcy is JBA’s Communications Manager and has been with the company since June 2013. In this position D’arcy manages project communication strategies, the day-to-day corporate communications of JBA and the media commitments of Josh Byrne.
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At JBA D’arcy has led high profile marketing campaigns for the likes of the Water Corporation, LandCorp, Department of Parks and Wildlife and the Metropolitan Redevelopment Authority. Stakeholder engagement and management has played a big part within each of these projects.

D’arcy is an experienced event manager and he has produced radio and television for a variety of public and commercial broadcast organisations. D’arcy is proficient in dealing with various content management systems as well as design software tools.

Geraldine Male

BCom(Acc), CPA

Finance & Administration Manager

Gerri is JBA’s Finance and Administration Manager and has been with company since April 2012.
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Gerri is a CPA with over 15 years management and financial accounting experience. Her previous roles saw her develop experience in financial modelling, business improvement processes and proficiency in a suite of various software applications.

Gerri’s career spans a diverse range of industries, working for publicly listed and private companies, which has provided her with a broad commercial foundation to complement the JBA team.