Major Capital Upgrade, Gwandalan STP

Closes in 71 daysClose date: 30 September 2026

Tender Overview

613388
Issued by Central Coast Council
Sydney (NSW)

About this tender

Central Coast Council is seeking tenders for a Major Capital Upgrade at the Gwandalan Sewage Treatment Plant (STP) located in Sydney, NSW. This capital project represents a significant infrastructure investment in the facility's upgrade and improvement. The project is identified under reference number 613388.

Frequently asked questions

This tender is for a Major Capital Upgrade of the Gwandalan Sewage Treatment Plant (STP).
Central Coast Council is the agency responsible for this tender.
The facility is located in Sydney, NSW.
The reference number for this tender is 613388.
This project is in NSW (New South Wales).

How to respond to this tender

A strong tender response is clear, compliant, and backed by evidence. These steps apply to most Australian and New Zealand public tenders.

Read the requirements in full

Open the official listing and download the full tender pack. Note the response schedules, evaluation criteria, mandatory conditions, and the exact closing time and lodgement method.

Confirm you are eligible and it is worth bidding

Check licences, insurances, certifications, and any conformance requirements before you commit. A quick bid or no-bid decision saves days of wasted effort on a tender you cannot win.

Answer every criterion with evidence

Respond to each evaluation criterion directly and back your claims with concrete examples, referees, and past performance. Address the buyer’s stated need, not a generic capability statement.

Lodge early through the official portal

Submit through the source portal well before the deadline. Late or incorrectly lodged bids are almost always rejected, so leave time for uploads, portal errors, and last-minute questions.

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