Cossill & Webley

19/10/2026

Cossill & Webley: Supporting Victoria’s Sustainable Data Centre Action Plan

The Victorian Government’s new Sustainable Data Centre Action Plan changes what it takes to get a data centre approved. New facilities will be expected to match their new electricity demand with new renewable generation, provide their own battery storage, pay for their own grid connection and network upgrades, use recycled or non-drinking water for cooling, and meet stricter siting rules, including 150m set back from homes.

Cossill & Webley’s Energy Transformation Services team can help developers and landowners meet these requirements from the earliest feasibility stage.
Our services include:
• Solar and battery systems: planning and design of on-site and nearby renewable generation and storage to offset new demand.
• Microgrids and embedded networks: private distribution systems that combine generation, storage and load for resilience and energy independence.
• Non-renewable solutions that may include Localised Gas Generation and Third Party Power Purchase Agreements. Assist in negotiating power connections to third party operators for power offtake, and/or co-locating with Third-Parties to share existing power connections to be used during non-peak times.
• Network connections and upgrades: managing connection applications and the network augmentation that operators now have to fund.
• Integrated civil and electrical design: our civil and electrical engineers work together, so power, water, recycled-water servicing, earthworks and traffic management are considered together from site selection onward, not added later.

We can help clients test site suitability early, set out a practical plan to meet the new rules, and reduce approval risk as the planning changes come into effect.

Get in touch with us at https://www.cossillwebley.com.au/contact/

12/10/2026

We’re proud to be the lead civil engineer supporting Development WA on the Madigan Estate project in Karratha, a key piece of the WA Government’s regional housing strategy.

We have recently achieved Practical Completion on three stages, delivering 130 lots over 1.5 years. The development supports employment, the regional economy, and a reduction in reliance on fly-in-fly-out workers.

Cossill & Webley have been involved in the project since 2010, providing services from early planning investigations through to all construction works delivered to date. Madigan Estate is a great example of what’s possible when good planning and strong delivery partnerships come together to meet real community need.

05/10/2026

Cossill & Webley has proudly delivered civil engineering services for Averley, a 1,500-lot masterplanned community, since 2019.

We’re pleased to celebrate several project milestones achieved over the past 6 months:
• Statement of Compliance (SOC) and Titles achieved for four Stages (163 lots), with another three stages (94 lots) SOC anticipated in the next month
• Detailed Design approval secured for four stages (184 lots), which are now under construction, alongside an 8Ha wetland and 500m waterway
• A new permit obtained, unlocking a further 450 lots, along with a proposed school and commercial precinct
• Functional Design Approval of the first four stages (209 lots) of the new permit

29/09/2026

Peet Medium Density's Glendalough Townhouse development delivers contemporary, sustainable living within an established urban community. Cossill & Webley's Energy Transformation Services team proudly supported the project through the design and documentation of the electrical and communications infrastructure. Working collaboratively with the project team, C&W helped deliver efficient, future-focused servicing solutions while supporting the development's broader sustainability objectives and transition towards smarter, lower-impact residential infrastructure for the Glendalough community.

10/09/2026

Cossill & Webley’s Avril Thomson presented at the recent UDIA Red Tape Summit – Here is a summary of some of our thoughts on how industry and government can work together to cut approval times without cutting corners:
1. More plans, less words
2. More face-to-face briefings with approving officers
3. More focus on project outcomes, less process for its own sake
4. More technicians, less administrators
5. Greater delegated authority and trust for assessing officers
6. No new red tape without pruning old red tape
UDIA WA

30/08/2026

We're incredibly proud that our Melbourne office has been awarded the Best Small or Medium Sized Consultancy of the Year, recognising our commitment to developing our people, widening participation and creating a more diverse and inclusive engineering industry.

In the acceptance speech, Director, Brock Jeffery-Monck, reflected on what makes our team so special, highlighting that we "share the values and philosophy of teamwork and collaboration."

A Huge thank you to ALDE and congratulations to our incredible Cossill & Webley team!

26/08/2026

We’ve launched our new website!

As our team continues to grow across Perth, Melbourne and Geelong, we’ve updated our website with a refreshed design and easier navigation.

Explore the land development, infrastructure and energy transformation projects we deliver alongside industry-leading partners

Take a look:

Award-winning civil engineering consultancy delivering land development, infrastructure and energy transformation projects across Perth, Melbourne and Geelong.

14/08/2026

We are proud to be the major sponsor of the 2026 WILD Event - She Means Business.
WILD creates a space for Women In Land Development to share experiences, support one another and build a strong, connected community.

As the program continues to grow, this year's event was the largest yet. The evening kicked off with a panel discussion featuring four brilliant female leaders from across our industry.

Thank you to our incredible panellists for sharing their experiences, insights and perspectives.

Katie Murphy - Tract
Victoria Leavold - Peet
Hilary Marshall - Ratio Consultants
Avril Thomson - Cossill & Webley

Events like this wouldn't be possible without the hard work of the committee behind them. A special thank you to our own Caroline Brady and Sara Ziffer, alongside Rebecca Ingleton - Human Habitats and Esther Brandon - Stockland.

We also thank the organisations who continue to support WILD: Stockland Living , Human Habitats, Spiire and MNG.

It was fantastic to see so many people come together to celebrate ad champion women in our industry. We're proud to be part of it

14/08/2026

Proud to see our own James Cappellari join the panel at the recent YEiLD event, sharing his expertise and insights into the industrial development market.

At Cossill & Webley, James focuses on large-scale industrial developments and brings a valuable perspective to the evolving needs of the sector.
James describes the distinction simply: “Industrial development isn’t just a ‘bigger residential.’ The infrastructure a site needs is driven by what the end user actually does there, not just the size of the lot.”

It was also great to have many of our team attend the event, with several of our early-career engineers taking the opportunity to learn from industry leaders.
One of our team members reflected: “The event left me feeling inspired by the continued development and opportunities within land development. It reinforced the importance of understanding the constantly shifting market and broader factors influencing development and market demands”

We’re proud to see our team contributing to these important industry conversations while continuing to learn and share knowledge across the industry.

13/07/2026

Our Melbourne team celebrated the end of financial year in casino style on Friday night. Swapping work desks for blackjack and roulette tables, it was a fantastic evening recognising our incredible team’s hard work and toasting to another successful financial year.

Throughout FY26, our team has continued to deliver high quality outcomes for our clients while helping shape thriving communities. We’re proud of what we’ve achieved together and look forward to continuing to work alongside our clients and project partners in FY27