431
VAV Boxes
2
Cooling Towers
96
Air Handling Units
zero
Downtime
Project Highlights
- Live migration from decades old proprietary legacy head end and hardware to a new head end in multiple stages with no major faults or service interruption.
- Operated around a fragile and aged head end server which was coded in LonWorks (a legacy network protocol that few technicians can program) and susceptible to failure at any point throughout the process. Simple mistakes could have destroyed the server and wiped out visibility to the entire building management system.
- Cutover the entire plant room to a new system without impacting data centers or receiving any tenant complaints.
- Delivered an incredibly complex project within aggressive timelines.
Police HQ’s Tech Stack
JCI FX Controls
Highly reliable and widely adopted, Johnson Controls DDC hardware integrates well with Niagara and provides strong support for HVAC, chilled water, and central plant applications.
- •Proven performance in commercial and critical environments.
- •Robust, scalable options for small and large systems.
- •Extensive device libraries for easier programming and fast commissioning.
Tridium Niagara N4
Tridium’s Niagara framework is designed as a Systems Integration Platform with native support for BACnet, Lonworks, Modbus and more, plus many manufacturer-specific protocols.
- •Truly open platform for developers
- •Modern cybersecurity standards
- •Highly customisable
Project Snapshot
| Project Element | Details |
|---|---|
| Client | Growth Point |
| Project Address | 1 Charles St, Parramatta NSW |
| Project Timeline | The project was completed in October 2024 |
| Services Provided | Full replacement of the entire building’s legacy Schneider BMS with a Tridium Niagara N4 headend and Johnson’s Controls hardware. |
| Partners | Growth Point (building owner), BGIS, Atmos Consulting, Powerchill Air Conditioning and NSW Police. |
Building Background
1 Charles St, Parramatta NSW is the NSW Police Headquarters building. The building operates 24/7 and has a wide range of unique requirements including critical server rooms, emergency response facilities, and a range of meeting rooms.
The building is owned by Growth Point, and managed by BGIS who have a projects team and a facilities team. The BGIS projects team worked with their consultant “Atmos” to scope the requirements for this brownfield BMS retrofit project.
The building had been serviced by a “tier 1” BMS contractor for almost two decades. The client had felt they weren’t getting the performance they deserve from the buiding, and sought a complete retrofit and new service provider.
OzTech was engaged to perform a complete retrofit in high stakes conditions.
- The client sought to transition to an open-source Tridium Niagara-based BMS, requiring the deployment of a new head-end system, servers, and an uninterruptible power supply (UPS). As part of the upgrade, the entire building’s communications infrastructure was replaced, including new CAT6 cabling throughout and a reconfigured network backbone across all floors.
- The project included the full replacement of BMS controller hardware within plant rooms, including end-of-life variable speed drives (VSDs). Additionally, new electrical meters were installed, which involved a complete building power shutdown and switchover, coordinated with all key stakeholders during a carefully planned overnight operation.
- An initial BMS audit identified a wide range of non-functioning dampers, valves, and control components, many of which were outdated and required replacement to restore full system functionality and enable effective control under the new platform.
The OzTech Difference
Parrallel Operation Experience
The projects team were able to run the existing BMS while simultaneously installing the new one.
Retrofit Experience
Enabled successful transition with zero downtime, no data loss, and no impact to key systems.
Excellent communication
Coordinated a full building power shutdown with BGIS, Ausgrid, mechanical and fire teams and police security to complete the installation of new electrical meters.
Multiple installation teams
Two floors were completed per week as a result of operating multiple installation teams working concurrently to meet tight timelines without compromising quality.
Here’s where we’re taking 1 Charles St to the next level
Energy Management System (EMS) Focus
Now that electrical meters are fully integrated, we’ve begun to hone in on energy consumption patterns. We’ll identify high-usage areas and equipment, cross-reference with operational data, and develop targeted recommendations to reduce consumption and cost — without compromising comfort or performance.
Fitout & Refurb Coordination
With several fitout floors currently active, our team is ready to support by ensuring that any new supplementary units, VAV relocations, or sensor adjustments are seamlessly integrated into the BMS. This ensures consistent comfort, efficient control, and accurate metering across all zones.
On-the-Ground Support
Our dedicated service technician is on-site every Tuesday, working closely with BGIS to stay across operational updates, identify minor issues before they escalate, and maintain alignment with your performance goals.
NABERS Pathway Planning
With a current NABERS Energy rating of 4.5 stars, our goal is to support Police HQ in reaching and sustaining a 5-star rating. We’ll use BMS analytics, metering insights, and continuous tuning to build a data-driven improvement plan that aligns with your sustainability and compliance objectives.
Experience makes a difference
With strict deadlines and mission-critical infrastructure on the line, there was no room for error. This is where OzTech’s experience truly delivered value. Our team’s deep understanding of complex BMS rollouts enabled us to identify and eliminate inefficiencies — ensuring a precisely coordinated, high-performance delivery.
One of our key strategies was to pre-engineer and pre-configure hardware off-site, allowing for rapid deployment once on-site. This minimised the risk of installation errors and reduced the time needed for troubleshooting during implementation. We also leveraged our strong supplier relationships to accelerate hardware procurement, ensuring controllers were available ahead of schedule.
In another example of forward planning, the team pre-installed cable louvres ahead of system cutovers, ensuring seamless transitions with minimal system downtime. These kinds of tactical decisions — born from years of experience — allowed us to streamline the build, maintain critical services, and successfully deliver on a highly complex project.
Benjamin Hayes
BGIS Account Manager – NSW Police Headquarters
Frank Costas
Site Manager – Fusion Services Group