Australian Institute of Landscape Architects 2022 Land Management Award for the Koala Habitat Establishment Project, Pacific Highway Upgrade, Wardell, NSW.

National Award of Excellence in Infrastructure 2021, Australian Institute of Landscape Architects for the Pacific Highway.

Pacific Complete won the 2021 Global Road Achievement Award for Program Management by the International Road Federation.

NSW Regional Achievement Award 2021, Australian Institute of Landscape Architects NSW, Pacific Highway Upgrade (Studio Colin Polwarth)

NSW Infrastructure Award 2021, Australian Institute of Landscape Architects NSW, Pacific Highway Upgrade (Studio Colin Polwarth)

NSW Infrastructure Award 2019, Australian Institute of Landscape Architects, Pacific Complete (Studio Colin Polwarth)

NSW Infrastructure Award 2017, Australian Institute of Landscape Architects NSW, Pacific Complete, Portion C (Hassell as an applicant with Studio Colin Polwarth)

National Award for Engineering Excellence, Engineers Australia, for Tintenbar to Ewingsdale Upgrade of the Pacific Highway (Arcadis), Studio Colin Polwarth was urban design administrator, Colin was lead urban designer and Associate Director of CM+

Municipal Safety Award 2009, Glebe Point Road, City of Sydney, Colin was lead designer and Associate of CM+

Planning Award 2008, Planning Institute of Australia for Brunswick to Yelgun Upgrade of the Pacific Highway (HBO+EMTB applicant), Colin was lead designer and Associate of CM+ author of the concept design

NSW Infrastructure Award 2008, Australian Institute of Landscape Architects NSW, Brunswick to Yelgun  Pacific Highway Upgrade, (HBO+EMTB applicant),  Colin was lead designer and Associate of CM+  author of the concept design

Planning Merit Award 2007, Australian Institute of Landscape Architects NSW, Bobbin Head and Apple Tree Bay Conservation Management Plan, Colin was lead designer and Associate of CM+

Energy Australia 2007 Award, National Trust Heritage Award, Bobbin Head and Apple Tree Bay Conservation Management Plan, Colin was lead designer and Associate of CM+

Global Roads Achievement Award 2007, International Roads Federation (SMEC) Westlink M7, Colin was lead urban design and Associate Director of CM+

Engineering Excellence Award: Infrastructure category 2006, Engineers Australia (National) - (SMEC) Westlink M7, Colin was lead urban design and Associate Director of CM+

Engineering Excellence Award: Infrastructure category 2006, Engineers Australia (NSW Division) (SMEC) Westlink M7, Colin was lead urban design and Associate Director of CM+

Transport and Civil Infrastructure Award for Excellence 2006, Association of Consulting Engineers Australia (Maunsell) Westlink M7, Colin was lead urban design and Associate Director of CM+

International Concrete Award 2006 (Maunsell) Westlink M7, Colin was lead urban design and Associate Director of CM+

Award recipient of the Ernest Oppenheimer Memorial Trust, 1992

Award recipient Centre for Science Development SA, 1992

Merit Award for Architectural Design II, 1983, School of Architecture, University of Natal (University of Kwazulu Natal)

Merit Award for Architectural Design III, 1984, School of Architecture, University of Natal, (University of Kwazulu Natal)

D. Calvert Mac Donald, Best Student in Third Year Architecture, 1984, University of Natal, (University of Kwazulu Natal)

SA Institute of Steel Construction Award, 1984, University of Natal, (University of Kwazulu Natal)