Refresh Vaucluse and Diamond Bay

Share on Facebook Share on Twitter Share on Linkedin Email this link
Diamond Bay

Below the cliffs of Vaucluse and Diamond Bay, wastewater flows directly into the ocean untreated.

It’s time for change and we’re continuing to work to ensure this iconic area of Sydney gets the clean, blue backyard it deserves. Under the Refresh Vaucluse Diamond Bay project we are building new infrastructure to divert the flows from the last three remaining ocean outfalls in Sydney to the Bondi Resource Recovery Facility (WRRF).

The project scope includes:

  • two new pump stations (one in Parsley Bay and one in Eastern Reserve)
  • 3km of new wastewater pipelines
  • upgrade existing infrastructure such us vent shafts and man holes

Whilst challenging, we know this is the right thing to do and we need you to get involved as we fix this problem once and for all.

Refreshing the wastewater system in Vaucluse and Diamond Bay offers multiple benefits—improving the harbour and coastal water quality, as well as protecting the health of the community and marine ecology.

The project is currently in detailed design with construction expected to start in 2024.


Below the cliffs of Vaucluse and Diamond Bay, wastewater flows directly into the ocean untreated.

It’s time for change and we’re continuing to work to ensure this iconic area of Sydney gets the clean, blue backyard it deserves. Under the Refresh Vaucluse Diamond Bay project we are building new infrastructure to divert the flows from the last three remaining ocean outfalls in Sydney to the Bondi Resource Recovery Facility (WRRF).

The project scope includes:

  • two new pump stations (one in Parsley Bay and one in Eastern Reserve)
  • 3km of new wastewater pipelines
  • upgrade existing infrastructure such us vent shafts and man holes

Whilst challenging, we know this is the right thing to do and we need you to get involved as we fix this problem once and for all.

Refreshing the wastewater system in Vaucluse and Diamond Bay offers multiple benefits—improving the harbour and coastal water quality, as well as protecting the health of the community and marine ecology.

The project is currently in detailed design with construction expected to start in 2024.


  • Eastern Reserve Pump Station - Community Information Session April 13, 2024

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    In early 2022, we consulted with the community on the design of a new pump station and supporting infrastructure at Eastern Reserve that will provide a solution to the legacy ocean outfalls at Diamond Bay.

    After receiving the feedback, we have been working on re-designing the pump station to further minimise impact on community, the reserve and walking track. The pump station will be mostly underground, and we have moved the pump station closer to Eastern Avenue, combined the vent stack with a clifftop light pole, removed sandstone blocks and hardstand area near the pump station footprint to improve local access to the reserve and included landscaping to blend with the local environment.

    Come and meet the team

    Our team will be hosting a drop-in information session so you can learn more about the new pump station design.

    Date: Saturday April 13, 2024

    Where: Eastern Avenue, Eastern Reserve, Dover Heights

    When: 12.00-3.00pm


    We look forward to meeting you on Saturday 13 April 2024 at Eastern Reserve.

    If you have any questions or would like further information, our community engagement team can be contacted by email: vauclusediamondbay@sydneywater.com.au or call: 1800 641 349.

  • Early works and site investigation at Parsley Bay

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    On March 22 our delivery partner, Abergeldie Complex Infrastructure notified local residents about the Parsley Bay site establishment and investigation works.

    What you need to know

    Over the coming weeks you will notice us in the area. You will see our people and vehicles in the Parsley Bay car park and Horler Avenue doing the following work activities:

    • Surveying and installing survey pegs
    • Installing environmental controls
    • Pre-condition surveys of roads, carpark, park facilities, footpaths
    • Locating existing underground services.

    This work will help progress environmental management plans prior to construction starting at the end of April/early May.

    Work hours

    Our work hours will be from 7 am to 6 pm Monday to Friday and from 8 am to 1 pm on Saturdays. We won’t work on Sundays, public holidays or over the Easter long weekend. We will let you know in advance if we need to do work outside of these hours.

    How will the work affect you?

    Access will be maintained into Parsley Bay through Horler Avenue and the car park will remain open while this investigation work is underway. We will notify you when we intend to close any car park access and parking spaces.



    ACI staff onsite at Parsley Bay



    Please refer to the notifications tab for more details.

  • Community Barbeque at Parsley Bay February 24, 2024

    Share on Facebook Share on Twitter Share on Linkedin Email this link
    supporting image

    Thanks to everyone who came to meet the project team at Parsley Bay. We enjoyed meeting over 50 community members who asked questions about the purpose, benefits and work schedule for the new pump station and pipeline in Parsley Bay. We are listening, stay in touch.

  • Site establishment at Dover Heights

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    In late December 2023 we appointed Abergeldie Complex Infrastructure (ACI) to deliver the Refresh Vaucluse and Diamond Bay project.

    Sydney Water’s property on the corner of Portland Street and Lancaster Road will be the site compound for this work. We will start site compound establishment work from late February 2024.

    What you need to know

    You will notice the following work activities:

    • Minor vegetation clearing within the compound area
    • Widening gates, installing fencing and signage
    • Delivery of equipment, temporary site sheds and facilities
    • Establishing parking, laydown, stockpile, plant and equipment storage areas

    We will ensure our contractors are parking on site. Access to properties and the bus stop on Portland Street will be maintained.

    We’ll make every effort to reduce any impact our work may have on you.

    Work hours

    Our work hours will be from 7 am to 6 pm Monday to Friday and from 8 am to 1 pm on Saturdays. The site compound may be in use after these hours with light vehicles only entering and exiting during that time.



  • Project update - February 2024

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    In 2024 we are pleased to announce that we have selected an experienced delivery partner to construct the Parsley Bay project safely while minimising impacts on the environment and the community. We are also progressing the infrastructure at Eastern Reserve. We would like to provide you with an update on the progress of the project and invite you to the community event in Parsley Bay Reserve on Saturday February 24, 2024.

    Please follow the link below to read the latest newsletter.

    Refresh Vaucluse and Diamond Bay February 2024 Newsletter

  • Read our latest FAQ!

    Share on Facebook Share on Twitter Share on Linkedin Email this link
    supporting image

    As we move towards starting construction, we have updated our frequently asked questions about the project. It contains project information, current progress and anticipated start date.

    You can find the latest FAQS here.

    To read our latest newsletter, please follow the link: October 2023 Newsletter.

    If you have any questions or want more information about the project, contact us via: email vaulcusediamondbay@sydneywater.com.au or call: 1800 641 349.

  • Project update and happy holidays!

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    With the year coming to an end, we would like to provide you with an update on the progress of the project.

    A lot has happened this year and we would like to take the opportunity to thank everyone in the community and our stakeholders for their feedback and suggestions.

    Please follow the link below to our two recent newsletters

    Newsletter- October 2024

    Newsletter - February 2024

    We wish you a joyous and happy holiday season and a happy new year.

  • Dover Heights: 33 & 33A Lancaster Rd works - upcoming work

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    We’re installing a new fence and gate on Portland Street and Lancaster Road to secure the site. Fence installation and landscaping works are planned to start from Monday 12 December 2022 and expected to take one week to complete, weather permitting.


    Our work will include:

    • removing all non-native vegetation and timber fence
    • excavation works using small machinery
    • installing a new Colourbond fence and gate
    • restoring impacted areas with new landscaping.

    We’ll make every effort to reduce any impact this work may have on you.


    Work hours

    Our works will be from 7 am to 6 pm Monday to Friday. We will not work on weekends and Public Holidays.

    If you have any questions, please contact our community engagement team on 1800 641 349 or email us on vauclusediamondbay@sydneywater.com.au

  • 50% Design Decision Report now available

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    Between February and May 2022 we consulted with stakeholder and the community on the 50% proposed design of the infrastructure.

    We asked for community feedback and we received 216 submissions. These submissions and our responses to the issues raised have been compiled into a Decision Report, which is now available to download.

    In response to your feedback we have made some changes to the proposal.


    Parsley Bay
    Following the submissions, we had another look at the new pump station at Parsley Bay. We have included safeguards, such as a gate at the proposed stairs and are looking at how we can further improve the aesthetics of the pump station.

    We also changed the layout of the pump station and moved it further into the car park to minimise its impact on the surrounding vegetation and rocky terrain. This is in line with community and Council expectations.

    We are progressing the design towards construction, which we expect to start mid 2023.


    Rose Bay
    We have reviewed the construction methodology for Carlisle St, Rose Bay. To minimise impacts to the community, mainly around traffic and parking, we will be changing the methodology from open trenching to trenchless along Carlisle Street, Rose Bay.


    Eastern Reserve and Diamond Bay
    We acknowledge the proposed design requires further refinement to minimise its footprint and visual impact. Engagement with residents and councils has led to the decision to re- visiting the infrastructure layout, location and design to divert the Diamond Bay outfalls

    An independent geo-technical service provider has been appointed to carry out additional investigations and modelling of the area to complete independent verification of the geo-technical assessments of the construction site.
    We are also pursuing alternative options for servicing the Diamond Bay precinct.

    As we are revisiting the infrastructure layout and design to divert the outfalls, the construction timeline for this part of the project is yet to be determined.

  • Dover Heights: 33 & 33A Lancaster Rd works - progress update

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    The depot at 33A Lancaster Rd demolition is now complete. .

    We are now planning for the demolition of the residential property at 33 Lancaster Rd.

    Upcoming work

    We’re doing site investigations to assess the condition of the property and ground. Soil investigation works are planned to start from Wednesday 14 September 2022 and expected to take two days to complete, weather permitting.

    Following these works, we will start with the removal of the vegetation at the site. We will also install a new fence and gate on Portland St. The new fence and gate will be similar to the one currently in place – it will just be extended to secure the site.

    We’ll make every effort to reduce any impact this work may have on you, but you may notice increased activities on site.

    We thank our neighbours for your cooperation during these works.

Page last updated: 19 Apr 2024, 04:34 PM