The Team

The Green Roofs and Living Walls Centre is part of the Landscape and Environmental Design Research Group, at the University of Greenwich. Collectively, this multidisciplinary group has an array of expertise, some of which includes hydrology and flooding, noise attenuation, air pollution, plants, living walls, green roofs, urban agriculture, Ecosystem Services and Comparative Life Cycle Analysis. They also bring their experience from working in, and with industry.


Dr. Benz Kotzen

Dr. Benz Kotzen leads the Green Roofs and Living Walls Centre and the Landscape Environmental Design Research Group. He is a Chartered Landscape Architect with over 25 years of experience and has been teaching landscape design for over 15 years at the University of Greenwich.

Benz’s expertise includes environmental noise particularly related to landscape design and he has written two books on the subject. Other fields of research include a focus on dry and arid lands, the combat of desertification and in particular restoration techniques through planting. Micro landscape manipulation, plant choice and water supply play a big part in designing appropriate solutions and this focus on water extends into research into the ‘green cities agenda’ with green roofs and living walls as well as aquaponics as a part of urban agriculture.

Benz is Chair of two EU funded projects, COST Action ES1104 on the combat of desertification and restoration in drylands ( and
COST Action FA1305 on EU aquaponics ( Benz has led the establishment of the University of Greenwich Green Roofs and Living Walls Centre which will become a leading focus for research and education in creating sustainable ‘green’ solutions for the 21st century.


Dr. Sarah Milliken

Dr. Sarah Milliken is a Research Assistant in the School of Architecture, Computing and Humanities at the University of Greenwich.  Originally trained as an archaeologist, Sarah has taught at various universities in the UK, Ireland and Italy. A keen interest in environmental issues and a desire to be able to actively address them, recently led her to undertake postgraduate qualifications in landscape architecture and urban sustainability. Her current research focuses on how the economic and non-monetary evaluation of ecosystem services can be integrated into the discourse and praxis of landscape planning and design.

Photo.ShelleyMShelley Mosco

Shelley Mosco is a Landscape Research Assistant in the School of Architecture, Computing and Humanities at the University of Greenwich where she is also Senior Lecturer in landscape design and GIS (Geographical Information Systems) for Landscape Planning.

Shelley is a landscape architect and director of her own private practice, specialising in green and living wall design. She has been involved in projects such as the UK’s tallest living wall, recently installed at the University of Newcastle’s Science Central; Network Rail’s Birmingham New Street Station and Transport for London’s Puddle Dock living wall which was used as a study for air pollution mitigation.

Her plant knowledge and growing expertise of Europe’s living wall system leaders, puts her at the forefront of this emerging technology.

Photo. Michelle.Sanches

Michelle Sanchez de Leon Brajkovich

Michelle Sanchez de Leon is a PhD Architecture candidate on the University Ramón Llull La Salle (Barcelona, Spain), researching Comparative Life Cycle Assessment on different types of external walls to analyse the importance that the building envelope has on its sustainable performance.  An Architect, Michelle graduated in 2006 from the Central University of Venezuela (Caracas, Venezuela). She specialised in Sustainable Architecture and Energy Efficiency in 2012-2011 at the University Ramón Llull La Salle (Barcelona, Spain) and in 2011-2012 completed a Masters degree in Integrated Project of Architecture at the same university. Michelle has worked with architectural firms in Venezuela and Spain in the development, coordination and management of projects in terms of design, manufacturing and construction.  Michelle is a specialist in the analysis, simulation and project certification from the standpoint of sustainability and energy efficiency.

In academia she has been a visiting professor and researcher at the Central University of Venezuela (Caracas, Venezuela), the University Simón Bolivar (Caracas, Venezuela), and the University Ramón Llull La Salle (Barcelona, Spain) and University of Greenwich (London, UK).


Dr. Spyros Stravoravdis

Dr. Spyros Stravoravdis is part of the Sustainable Built Environment Research Group, as well as the Landscape Environmental Design Research Group. Spyros has extensive experience in teaching, research and consulting in the field of environmental performance modelling, looking at the performance of buildings and their surroundings.

Spyros has worked on numerous research and consulting projects investigating the effect of the environment on buildings and the effect of buildings on the surrounding environment as well as ways of mitigation and adaptation due to climate change.

Other notable areas include the design of stadium roofs for enhanced turf performance and recovery, the effect of green roofs and walls on buildings and the surrounding environment. Spyros is interested in applying an integrated approach to the design of buildings or public spaces and his research involves the prediction and measurement of environmental parameters within or outside of buildings, for better informed decision making.


Dr. Anna Rommanova

Dr. Anna Rommanova is a Research Fellow in the Department of Civil Engineering at the University of Greenwich where she investigates the corrosion process in buried pipe networks and studies water retention properties, capillary suction as well as noise and air pollution absorption by a mixture of different soils, substrates and porous materials to be accommodated in Green Wall infrastructures. The aim of the above research is to eliminate the use of pumps and deliver a vertical green panel with low carbon footprint and sustainable benefits of mitigating surface floods, reducing urban noise, enhancing air pollution and improving thermal properties of the building.

Prior joining the University of Greenwich, she was working at Grontmij Group Ltd as Project Design Engineer in Water Department dealing with fire / potable and wastewater infrastructures mainly on acting Royal Air Force sites. As a research associate at the University of Bradford she working on two EPSRC projects titled: ‘Sewer Condition and Blockage Detection Classification Using Novel Acoustic Instrumentation’ and ‘Sonic Characterisation of Water Surface Waves, Turbulence, Mixing and Bed Friction in Shallow Water Flows’.

Dr. AlejandPhoto.Alenadroro Dussaillant Jones

Dr. Dussaillant joined the Department of Civil Engineering at the University of Greenwich in January 2010 as a senior lecturer in water and environment. Prior to this, he was associate professor at Universidad de Concepción, Chile (2007–09), assistant professor at Universidad Católica, Chile (2003–06), and engineer at Dames & Moore (1994–96). He earned a PhD in civil and environmental engineering from University of Wisconsin, Madison, in 2002, graduated from civil and environmental engineering from P. Universidad Católica, Chile (1994) and holds a BEng (1993) from the same institution.

Dr. Dussaillant’s broad area of research is eco-hydrology, which he has pursued for over a decade in the USA, Chile and the UK. He studies processes in surface and subsurface waters using sensor networks, data analysis and modelling tools, to improve prediction and design applications. Current research interests include hydrologic prediction on ungauged catchments and catastrophic floods, water resource adaptation strategies in view of global change, green infrastructure and sustainable drainage systems, and wetland eco-hydrology. He has been involved in leading-edge research projects dealing with sustainable drainage systems such as rain gardens and bio-retention cells, and has developed numerical design models currently used in the US for licensing new urbanisations in the state of Wisconsin.

His teaching interests are in the subjects of water resources, hydrology, hydraulics, fluvial geomorphology and numerical modelling.

Dr. Dussaillant currently serves as an editorial board member of the Hydrological Processes Journal. He is a member of EGU and AGU, IAHS and IAHR, BGS and BHS and is currently an associate researcher at CIEP-Chile.