3D Utility Mapping and Modelling Sydney
A 2D services plan tells you where a utility runs. A 3D utility model tells you where it runs, how deep it sits, and what it will hit when your design goes in. Locate & Map builds 3D utility models from field-detected and potholed data across Sydney, so design teams can run proposed works against the existing network before anyone breaks ground.
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What a 3D model gives you that a plan cannot
On an open site with three services in it, a 2D plan is enough. On a congested site, it stops being enough quickly. Depths become a column of annotations, crossings stack on top of each other in plan view, and the question that actually matters, “does my new drainage line clear the existing gas main at that crossing?”, takes a scale rule and an assumption to answer.
A 3D model answers it by inspection. Services sit at their surveyed depth and their real diameter. Your proposed works are dropped in alongside them and the conflicts show up as conflicts. On multi-trade civil sites, the model becomes the single reference that every stakeholder works from, instead of each contractor holding their own version of what is underground.
The model is drafted in-house in 12d and AutoCAD by the same team that surveyed the site, and every service in it carries an AS 5488 quality level so the reader knows how much to trust each line.
How we build the model
A 3D model is only as good as the data under it, so the model starts in the field, not in the software.
Detection
Our utility locating team traces conductive services with electromagnetic induction and sweeps for the rest with ground penetrating radar. Marks are surveyed so every detected point has a position.
Depth
EM and GPR give an indicative depth. Where the design needs a depth it can rely on, we pothole the service by vacuum excavation and measure it directly, which lifts that point to QL-A.
Structures
Services buried inside slabs, walls and footings are picked up by concrete scanning and added to the same model.
Drafting
The surveyed points, depths and diameters are built into the 3D model in 12d and AutoCAD, with the quality level and capture method attached to every utility.
Quality levels in the model
A service traced by EM and surveyed is QL-B, and AS 5488 sets its tolerance at 300 mm horizontal and 500 mm vertical. A service that has been potholed and measured is QL-A, with a tolerance of 50 mm. A service drawn only from records is QL-D and is flagged as such.
We turn 10 years old this year!
We’re turning 10 years old this July and there’s never been a better time to see what we’re all about. Watch our video to discover how Locate & Map can support your project from start to finish. With a decade of experience behind us, you can trust us to get it right the first time.
Ceritified Locators
At Locate & Map, all our locator surveyors are CertLoc accredited (previously known as BYDA accreditation), ensuring they meet the highest industry standards for locating underground utilities.
This certification means our team is trained, tested, and qualified to work safely and accurately across a wide range of project types. Whether it’s for residential, commercial, or infrastructure work, you can trust that our locators use best-practice techniques, follow all relevant guidelines, and are equipped with the latest technology to get the job done right.
When you work with Locate & Map, you’re not just hiring a locator — you’re working with certified professionals who are committed to delivering clear, precise results every time.
24Hr Service
At Locate & Map, we understand that time-sensitive projects don’t always fit into a 9–5 schedule. That’s why we offer a reliable 24 hour service, working day and night to support your needs and minimise disruption on site.
Whether it’s an emergency locate, night works, or a tight construction timeline, our team is ready to respond quickly and safely. We coordinate closely with our clients and contractors to ensure all work is carried out with care, precision and full compliance — no matter the hour.
With a strong focus on safety and communication, you can trust Locate & Map to deliver dependable service when you need it most.
Professional Reports
At Locate & Map, we provide detailed and accurate reports tailored to your project requirements. Our deliverables are available in 12d, DWG, and PDF formats, making them easy to integrate into your existing workflows — whether you’re an engineer, surveyor, architect or project manager.
Every report is prepared by experienced professionals to ensure clarity, precision, and compatibility with industry-standard software. No matter your field, we’ll make sure you receive the data you need in the format you prefer.
Cost Effective
With over a decade of industry experience, Locate & Map knows how to keep your project running on time and within budget. Our streamlined processes, skilled team, and accurate data help reduce costly delays, design changes, and safety risks on site.
By identifying underground utilities correctly the first time, we help you avoid unnecessary surprises and rework — saving both time and money. When you partner with Locate & Map, you’re investing in efficiency, accuracy, and long-term value.
Formats and how it fits your workflow
We deliver in the formats Sydney design teams already run: 12d model files for civil and drainage design, and 3D DWG for AutoCAD-based workflows. Tell us what platform your design is in when you send the scope and we will confirm the handover format at quoting.
The model is built on a project datum and coordinate system agreed at the start, so it overlays your design directly. Where the project keeps a GIS, the same data can be supplied as spatial layers.
When to choose 3D over 2D
- Congested urban sites where several services cross or run in the same trench
- Deep excavation, piling and tunnelling, where vertical clearance is the risk
- Multi-trade civil projects installing new services around existing ones
- Brownfield redevelopment where the records are old and the ground is full
- Any project where design coordination is happening in 3D already
If your site is simple, say so and we will tell you a 2D plan is the better spend. Our utility mapping page covers the 2D deliverables.
What the model can and cannot promise
Every utility in the model carries the quality level at which it was captured, and we will not present a records-only line as a detected one. Where a service could not be detected because of depth, soil conditions or pipe material, that limitation is recorded in the model. A gap you know about is manageable; a gap you do not know about is the one that costs money.
The full quality level explanation is on our utility mapping page, and the survey program that produces the data is described under subsurface utility engineering.
Proven on large civil projects
On Sydney Water’s 42 kilometre Upper South Creek pipeline, subcontracted to John Holland, Locate & Map managed utility data and GIS across the full alignment, potholed every existing utility crossing, and supported redesigns as field conditions changed. Read the Upper South Creek project summary.
The data discipline that makes a model trustworthy on a 42 kilometre job is the same discipline we apply to a single site.
Frequently asked questions
Do I need a full survey before you can model in 3D?
Yes, if you want a model you can design against. We can build a QL-D model from records alone for early scoping, but it will be flagged as records-only throughout and is not fit for excavation planning.
Can you add our proposed design to the model?
Send us the design files and we will overlay them so the clashes are visible in the same model. Most teams prefer to import our model into their own design environment, and the 12d and DWG formats are built for that.
How accurate are the depths?
As accurate as the method used to get them. EM and GPR depths are indicative and reported as QL-B. Potholed depths are measured and reported as QL-A. The model tells you which is which for every service.
Client Testimonials
We had a great experience with Locate and Map. Their service was professional, efficient, and very helpful throughout the entire process.
The team was easy to communicate with, always willing to assist, and went the extra mile to make sure everything was done right.
Highly recommend them – truly a great company to work with!
Wow, Locate and Map are a pleasure to work with. They are very professional and always respectful. They do a fantastic job all-round and have been a pleasure to work with and for.
I would recommend them to anyone requiring locating survey or utility services.
Locate & Map is an outstanding local company that truly walks the talk when it comes to supporting community. Whether it’s sponsoring local carols or backing junior sports teams, they never miss an opportunity to get behind our community. Always willing to answer the call and help the next generation thrive — we’re so grateful for their ongoing support!
Why Sydney Teams Choose Locate & Map
- CertLoc accredited locator surveyors, previously known as BYDA accreditation
- More than a decade of Sydney projects behind us
- Locating and drafting under one roof, so field context is not lost in a handover
- 24 hour service for night works, shutdowns and tight programs
- Deliverables in the software your team already uses
3D models fail when the field data and the drafting are done by different companies. Depths get transcribed, diameters get assumed, and the model looks precise while being wrong. Keeping both under one roof is how we avoid that.
The model draws on our utility locating, ground penetrating radar, concrete scanning and vacuum excavation services, and sits alongside the 2D deliverables from our utility mapping team.
Get Your Site Modelled
Send us the site, the design stage and the software your team runs, and we will come back with a quote and a delivery date. Call (02) 8753 0049 or use our contact page. CertLoc accredited locator surveyors, more than a decade of Sydney projects, and 24 hour service for night works and tight programs.
Locate & Map. 201/49 Queens Rd, Five Dock NSW 2046.