Can both dwellings share a sewer connection?

Yes, if the dual occupancy remains on a single lease. Icon Water allows the two dwellings to use one shared connection to the sewer network.

However, if the property is subdivided into separate leases, each lease must have its own independent sewer connection to the Icon Water sewer network.

So, whether the sewer connection can be shared depends on whether the two dwellings remain on one lease or are separately subdivided.

Reference: Icon Water – Building Requirements, Book 5: Dual Occupancy and Secondary Residences, pp. 43–44 – Water Supply and Sewer Connection - https://www.iconwater.com.au/sites/default/files/2023-10/Book%205%20-%20Dual%20occupancy%20and%20secondary%20residences.pdf