Sumita Ghosh

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Floods partially submerged a house in Richmond during the April 2022 flood. Mark Baker/AAP

We pay less for houses in one‑in‑100 year flood zones – but overlook risks of more devastating floods

Song Shi, University of Technology Sydney; Mustapha Bangura, University of Technology Sydney, and Sumita Ghosh, University of Technology Sydney

Floods are common in the Hawkesbury-Nepean Valley north of Sydney. But trends in house prices show us buyers don’t fully grasp the risk
Allowing residents to remove trees within three metres of buildings or ‘ancillary structures’ could dramatically alter the green infrastructure of dense inner Sydney suburbs like Rozelle. Tom Casey/Shutterstock

Trees can add $50,000 value to a Sydney house, so you might want to put down that chainsaw

Sara Wilkinson, University of Technology Sydney; Agnieszka Zalejska-Jonsson, KTH Royal Institute of Technology, and Sumita Ghosh, University of Technology Sydney

Greater urban density is making it harder to preserve, let alone increase, tree cover. It’s vital, then, to demonstrate the full value of green infrastructure for healthy liveable cities.
Green rooftops give a backyard feel to smaller housing units in Sydney Author Provided

Australian cities are lagging behind in greening up their buildings

Sara Wilkinson, University of Technology Sydney; Paul J Brown, University of Technology Sydney, and Sumita Ghosh, University of Technology Sydney

Research shows if Australia encourages greenery on buildings, it will reduce temperatures in the city, as well as potential for flash flooding. It also creates new habitats and socialising spaces.

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