Online payments and requests unavailable

Online hard waste bookings will be unavailable from 6pm Friday 5 to 6am Monday 8 December. Online payments, customer requests, and other e-business services may also be unavailable from 8pm to midnight on Friday 5 November. We apologise for any inconvenience.

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Free boat launching at O’Sullivan Beach boat ramp

Free boat launching will commence at O’Sullivan Beach boat ramp from 1 November 2025 thanks to a harmful algal bloom response partnership between the City of Onkaparinga and the state government.

Regulated and significant trees

Per the Planning, Development and Infrastructure Act 2016, any activity that damages a tree identified as a Regulated Tree or Significant Tree is classed as development.

As such, the proposed activities against Regulated and Significant Trees require development approval:

Removal, killing, poisoning or destruction
Branch or limb lopping
Ringbarking or topping
Any substantial damage to the tree, including to its root system

Identifying regulated and significant trees

In the City of Onkaparinga, the state government’s native vegetation legislation applies, and can take precedence to regulated and significant trees.

Native vegetation

The Native Vegetation Council (NVC) is an independent body that monitors the state’s vegetation.

Garden guide for new homes

The Adelaide Garden Guide for New Homes aims to inspire people to add more greenery to new homes.

Tree species exempt from development approval

The Minister of Housing and Urban Development has released a list of exotic tree species exempt from development approval, click on the link below to view the list:

Ministers Notice: List of exempt species

If interested in browsing our frequently asked questions regarding trees, please take note that we have two separate FAQ pages pertaining to trees on a contextual basis:

Planning & development | Identifying regulated and significant trees

Environment and sustainability | Tree FAQs

Interested in the environment or wish to get more involved with your community?

Trees

Trees are awesome! They keep us cool, clean the air, reduce stormwater runoff and provide habitat. We value trees and have a target to plant 100,000 around our region by 2037.

Food and gardens

We are involved in a wide range of food initiatives promoting health and wellbeing in our community. We also have information relating to food security to assist those in need.