GSR Engineering... invaluable. High-level technical expertise and strong understanding of Sydney Water codes... elevated our quality control and compliance.
Specialist water and civil engineering for complex sites.
Practice statement
GSR provides specialist potable water and wastewater engineering services and design, including C3 Water Servicing Coordinator support for developers and consultants. GSR also provides potable water/wastewater servicing feasibility assessments, technical assessments/project management, design reviews, and site inspections.
Capabilities
- 15+ years across consulting, council and WSC environments
- Strong knowledge of Sydney Water requirements and approval pathways
- Specialist potable water and wastewater focus
- Direct access to senior-level input on every job
- Stormwater, S3QM and DA plans
- Servicing feasibility assessments
Residential / Illawarra, NSW 01 / Services
Specialist support across the water cycle, end to end.
We provide potable water, wastewater, and stormwater servicing designs for developments, alongside C3-level Water Servicing Coordinator engineering support where additional capacity or specialist input is required. We also assist Councils in delivering development engineering regulatory functions and supporting project delivery.
01.1 01.2 01.3 01.4 01.5
Sydney Water BPA and Specialist Engineering Assessment
Engineering review of in-scope and out-of-scope building plan approvals, including SEA reports to support Sydney Water submissions.
Practical advice before submission.
Servicing feasibility assessments
Early-stage assessment of potable water, wastewater and stormwater constraints, options and approval considerations.
Practical advice before submission.
C3 Water Servicing Coordinator support
Short or long-term overflow capability for WSC firms needing additional potable water and wastewater capacity.
Practical advice before submission.
Development engineering for councils
Technical referral reviews, water and sewer servicing input, and site surveillance for regulatory delivery.
Practical advice before submission.
Stormwater, S3QM and DA servicing plans
Stormwater design, erosion and sediment control, water quality modelling and utility plans for small developments.
Practical advice before submission.
02 / Why GSR
Senior input on every job. No handoff, no junior layer.
GSR is led directly by Gabriel Sciannimanica, a specialist potable water and wastewater engineer with 15+ years across consulting, council and WSC environments.
About the practice15+Years across consulting, council and WSC
C3Water Servicing Coordinator level
6NSW service areas
1:1Direct senior contact
03 / Who we work with
Engaged by firms, councils and developers shaping NSW infrastructure.
A / 01
WSC firms needing overflow support
A / 02
Engineering consultancies lacking water/wastewater capability
A / 03
Councils needing development engineering / water-sewer support
A / 04
Planners
A / 05
Developers needing servicing feasibility / early advice and/or designs for Development Application and Section 68 submissions
04 / Field notes
Testimonials
Direct feedback from past project work and technical support engagements.
Highly capable sewer and water engineer and excellent PM... practical, solutions-focused, clear, timely, proactive.
Gabriel provided stormwater, erosion and sediment control, and S3QM modelling support for our rural shed DA project in Quialigo. His advice was practical, responsive and helped move the approval process forward.
05 / Select work
Each project moved an approval, lifted capacity, or unlocked a site.
Loftus Street Pedestrianisation, Sydney CBD
Multiple SEAs and two out-of-scope BPAs; secured Sydney Water approval and works commencement.
WSC Technical Overflow
Ongoing reviews, servicing advice, Sydney Water interface, inspections; lifted capacity and delivery of complex projects.
Riverleigh Ave, Gerroa
Design amendments to align with Sydney Water guidelines; avoided out-of-scope BPA, saving time and cost.
Willow Vale Planning Proposal
Potable/wastewater feasibility and servicing strategy; demonstrated viable servicing for rezoning.
Need support on a current project?
GSR can assist with design, approvals, servicing feasibility, technical overflow support, inspections, and related development engineering work.
Discuss your project