PTA Landscapes have completed construction on a signature project for long standing Client, Monash University Clayton. Designed by Rush Wright Associates, Innovation and College Walk is a functional landscape featuring a multipurpose granite paved boulevard, plaza and a significant stormwater treatment basin comprising of a wetland and biofilter zone.


Originally an access road, delivery depot and car park, the space has been transformed into a resourceful, reflective and educational environment.

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The wetland treats stormwater from the adjacent catchment and buildings, comprising of approximately 800m2 of roof area. Stormwater is directed from the roof into the wetland via a custom stainless steel water feature. Once the wetland fills, water spills over the insitu concrete weir walls and into the marsh planting zones, before being captured and transferred to the underground storage tank which is used to irrigate the surrounding landscape.

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The biofilter is responsible for the treatment of a catchment area of approximately 3300m2 from the upstream roads and landscaping. The biofilter is ameliorated with biochar to improve the retention of heavy metals from the road runoff to improve the soils moisture holding capacity. Once the stormwater exits the biofilter it is also captured by the underground storage tank for irrigation.

As the water transitions through the systems, it can be tested via monitoring pits for sediment, nutrient and other pollutants. This allows for the collection of data to be used by the University for teaching and case studies.

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The surrounding landscape looks over the water treatment system and allows for passive observation and interaction with the exciting new environment.

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A recycled hardwood boardwalk wraps around three sides of the bio basin.

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Granite staircases and ramps lead from the boardwalk onto the expansive granite paved walk.

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Exposed aggregate was used throughout to create designated pedestrian areas.

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One of the pedestrian walkways counter leavers over the biobasin, featuring a glass balustrade and stainless steel handrail etched with graphics.

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A fallen tree was reused in the landscape construction as a feature.

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Recycled hardwood and plastic was utilised for the decking structures and furniture.

For further information regarding this project, or if you would like to talk to one of the team members from PTA Landscapes about a project you are planning, please call (03) 9872 3055 or email