Equinox Marulan

Home » Equinox Marulan

Equinox Marulan | End-to-End Subdivision Delivery

Project Details

Date

2023 – Ongoing

Client

Corio Developments

Infrastructure Value

$25M

Service

AT&L provided end-to-end civil engineering services, including feasibility and due diligence, civil design, water and wastewater design, stormwater management and flood impact assessment and management to facilitate successful project delivery and Statement of Compliance outcomes.

Project Overview

Equinox Marulan is a significant residential subdivision development being delivered by Corio Developments in Marulan, New South Wales.

AT&L has provided comprehensive civil and infrastructure engineering services across Stages 2, 3 and 4 of the development, supporting the project from master planning through to construction completion.

The development includes:

228 residential lots
Internal road network and associated infrastructure
Stormwater drainage systems
Water reticulation networks
Sewer infrastructure
External works and supporting services

The project required the delivery of critical infrastructure while addressing significant servicing constraints associated with the existing sewer network.

The project also faced ongoing approval and certification challenges, with delays arising from planning approvals, inspections and acceptance processes. Throughout the five-year project journey, AT&L provided proactive support to the developer, helping navigate complex Council requirements and maintain project momentum.

AT&L’s Role & Key Infrastructure Features

AT&L worked closely with the developer throughout all phases of the project, delivering civil and infrastructure engineering solutions that enabled the successful progression of the subdivision.

Scope included:

Master planning support
Civil and infrastructure engineering design
Earthworks design and coordination
Internal road and pavement design
Stormwater drainage design
Water reticulation design
Sewer infrastructure design
External works design
Development Application (DA) support
Construction phase services
Operational management planning
Maintenance management planning

Key infrastructure features:

Delivery of civil infrastructure supporting 228 residential lots
Comprehensive road, drainage, water and sewer networks
Design and implementation of a dedicated Sewage Treatment Plant (STP)
Integrated servicing solution for Stages 2 and 3
Coordination of infrastructure delivery through planning, approvals and construction phases

Design Innovations That Reduced Disruption

One of the project’s most significant challenges was the inability of Council’s existing sewer network to provide sufficient capacity to service the proposed development.

To address this issue, AT&L assisted Corio Developments in developing a practical and sustainable wastewater servicing solution through the design and implementation of a dedicated Sewage Treatment Plant.

Design innovations included:

Design and delivery of a dedicated Sewage Treatment Plant servicing Stages 2 and 3

Alternative wastewater servicing solution that removed reliance on constrained Council infrastructure

Integration of treatment plant infrastructure into the broader subdivision servicing strategy

Practical and sustainable engineering solution enabling continued development delivery

Ongoing adaptation to evolving project and regulatory requirements

Proactive management of approval, inspection and certification challenges throughout the project lifecycle

Key Outcome & Benefits

Successful delivery of civil infrastructure supporting 228 residential lots

Development of an alternative wastewater servicing solution through a dedicated STP

Continued progression of the development despite limitations within existing public infrastructure

Reduced project risk through proactive engineering and regulatory coordination

Effective management of Council requirements and stakeholder expectations

Ongoing technical and strategic support throughout a complex approvals environment

Strong collaboration with the developer from master planning through construction delivery

Client Testimonial

AT&L had a professional approach in designing a development that gave the developer and council the best outcome whilst dealing with technical issues in the development. They have a good understanding of how to maximise every square inch of the development, lot sizing and all infrastructure.

David Matthews – Development Manager, Corio Developments

Corio Developments benefited from AT&L’s long-term involvement, technical expertise and proactive approach to overcoming servicing and approval challenges, ensuring the successful progression of the Equinox Marulan development.