Unlock Precision and Clarity with Avian’s BIM Services
Millimetre-accurate BIM models built from reality capture, not assumptions.
Scan accuracy: ±7-10mm
Model detail: LOD 100-500
Delivery: 2-8 weeks depending on scale
Services > CAD Drafting and 3D Models > BIM Services
At Avian, we deliver industry-leading building information modelling (BIM) services that transform laser scan data into intelligent, data-rich BIM models.
What Are Building Information Modelling (BIM) Services?
Building information modelling services create intelligent 3D digital representations of buildings that go far beyond traditional drawings. Unlike basic 3D models, BIM embeds geometry with real-world data – materials, dimensions, quantities, and performance information – enabling teams to coordinate, analyse, and build with confidence.
At Avian, our BIM models are grounded in reality. Using 3D laser scanning, we capture existing conditions with millimetre accuracy, then convert that data into verified Revit models. This approach eliminates the errors commonly found in CAD-to-BIM conversions or outdated as-built drawings.
Our scan to BIM services are particularly valuable for:
- Renovations and refurbishments
- Heritage buildings
- Complex commercial or infrastructure sites
- Projects where accuracy is non-negotiable
Our Core BIM Services
As-Built Modelling
For projects that require an accurate as-built BIM model of an existing building, Avian’s as-built BIM services convert 3D laser-scan point cloud data into a parametric Revit model at a specified Level of Development. The right starting point for renovations, heritage conservation, MEP retrofits, and asset documentation.
Ideal for:
- Existing building documentation
- Heritage conservation
- Refurbishments and extensions
- Facility management
Deliverables include:
- As-built Revit models (LOD 100-500)
- Registered point clouds
- 2D plans, sections, and elevations
Revit BIM Services & BIM Drafting Services
Our BIM drafting services and BIM drawing services support design development and construction documentation across architectural, structural, and services disciplines.
We produce:
- Intelligent Revit models
- Accurate BIM drawings extracted directly from models
- Schedules and quantities for planning and cost control
These Revit BIM services ensure consistency across drawings, reduce coordination errors, and support smoother project delivery.
BIM Coordination Services
As a specialist BIM coordination services provider, Avian helps project teams identify and resolve clashes before construction begins.
Through federated models and structured coordination workflows, we:
- Detect conflicts across architectural, structural, and MEP systems
- Reduce costly on-site rework
- Support faster approvals and construction sequencing
Accurate coordination starts with accurate base data – which is why our BIM coordination is often paired with 3D laser scanning.
Who Benefits from Avian’s BIM Services?
Avian’s BIM solutions are designed for professionals who need certainty, not guesswork:
✅ Architects requiring reliable existing-condition models
✅ Engineers needing precise geometry for analysis and coordination
✅ Builders aiming to reduce RFIs and construction delays
✅ Fabricators requiring dependable dimensions for off-site manufacturing
✅ Asset owners seeking long-term digital building records
Many clients engage Avian as an experienced drone surveying company for as-built surveys of the complete building envelope, including inaccessible roof or facade areas of high rise buildings. Avian complies with the regulations governing drone use in Australia (refer to the Casa drone guide) and we skillfully combine aerial data and terrestrial scanning to work together seamlessly.
BIM Modelling Methodology: From Point Cloud to Intelligent Models
Avian’s BIM modelling methodology is designed to deliver accurate, reliable, and LOD-compliant models without unnecessary complexity. Every stage is structured to minimise risk, maintain quality control, and ensure your BIM deliverables are ready for real-world use across design, construction, and asset management.
✓ Stage 1: Project Scoping & Definition (1-2 Days)
We begin by reviewing existing drawings, documentation, and project objectives. This stage defines the required LOD (100-500), deliverable formats, coordination requirements, and timelines, ensuring the BIM model is aligned with how it will actually be used on site and in design workflows.
✓ Stage 2: Reality Capture & Data Collection (1-3 Days)
For scan-based projects, our team captures existing conditions using industry-leading 3D laser scanning technology. This ensures millimetre-accurate geometry is recorded from the outset, removing reliance on assumptions or outdated drawings.
✓ Stage 3: BIM Model Development (1-8 Weeks)
Using Revit, our BIM consultants convert captured data or design inputs into intelligent BIM models. Parametric objects are created to the agreed level of detail, ensuring accuracy suitable for coordination, documentation, fabrication, or asset management.
✓ Stage 4: Quality Control & Verification (3-5 Days)
Every model undergoes rigorous internal checks. We validate geometry against source data, review model consistency, and confirm compatibility across platforms. This step ensures confidence in both accuracy and usability.
✓ Stage 5: Final Deliverables & Handover (1-2 Days)
We provide fully packaged BIM deliverables, including native Revit files, IFC exports, supporting drawings, and documentation. All files are issued ready for immediate use across design, coordination, or construction teams.
BIM Coordination Workflow: From Model Alignment to Clash Resolution
Avian’s BIM coordination workflow is designed to uncover and resolve coordination issues early, before they become costly problems on site. Our structured, repeatable process ensures all disciplines work from aligned models, with clear accountability and measurable progress at every stage.
✓ Stage 1: Model Collection & Federation (Weekly)
We collect the latest models from all disciplines and federate them into a single coordinated environment using Navisworks. Coordinate systems, model alignment, and clash detection parameters are verified to ensure a reliable baseline before analysis begins.
What this delivers:
- A single source of truth for coordination
- Consistent model alignment across all disciplines
- Reduced risk of downstream coordination errors
✓ Stage 2: Automated Clash Detection (2-4 hours)
Using predefined rulesets, we run automated clash detection across architectural, structural, and MEP models. This identifies physical clashes, clearance issues, and constructability risks that would otherwise surface during construction.
Clashes identified may include:
- Hard clashes (physical interferences)
- Soft clashes (clearance or access violations)
- Workflow clashes (installation sequencing conflicts)
✓ Stage 3: Clash Review & Prioritisation (4-8 hours)
Detected clashes are reviewed, filtered, and categorised by severity. False positives are removed, responsibility is assigned to the relevant discipline, and visual clash reports are prepared to support efficient decision-making.
This step ensures coordination meetings stay focused on critical issues.
✓ Stage 4: Multidisciplinary Coordination Meetings (Weekly 2-hour sessions)
We facilitate structured coordination meetings (either virtual or on site) bringing together all disciplines to review clashes, agree on resolutions, and document outcomes. Each issue is tracked with clear ownership and deadlines.
Progress is measurable week-on-week, with clash counts reducing significantly as coordination advances.
✓ Stage 5: Resolution Verification & Ongoing Tracking (Continuous)
Updated models are re-federated and re-checked to confirm clashes have been resolved correctly. We maintain a live coordination register, ensuring visibility across the project team and preserving a clear audit trail.
Outcome:
- Verified clash resolution
- Reduced rework on site
- Confidence that coordinated models are construction-ready
Why Choose Avian as Your BIM Consultant?
Avian combines advanced capture technology with practical construction knowledge. As an experienced BIM coordination services provider, we focus on accuracy, constructability, and clarity, not just visuals.
What sets Avian apart:
Our Revit BIM services are trusted by consultants and contractors who need dependable data, fast turnaround, and responsive support.
Ready to Start Your BIM Project?
Whether you need accurate as-built models, coordinated Revit documentation, or a reliable BIM coordination services provider, Avian delivers clarity from capture to completion.
Talk to Avian today to see how reality-based BIM can reduce risk, save time, and support better project outcomes.
BIM Services Across Melbourne, Sydney & Brisbane
Avian provides local BIM expertise backed by national capability.
Melbourne
Strong heritage and CBD project experience
High-rise commercial and infrastructure support
Address: 152 Elizabeth St, Melbourne VIC 3000
Sydney
Complex urban developments and transport infrastructure
Large-scale commercial coordination
Address: 465 Victoria Ave, Chatswood NSW 2072
Brisbane
Mixed-use and institutional projects
Subtropical building considerations
Address: 1554, 17 Gould Rd, Herston QLD 4006
Our teams mobilise quickly and understand local regulations, ensuring smoother project delivery from day one.
FAQs About BIM Services
We have answered some common questions that clients have about BIM Services.
How does Avian Australia measure volume in BIM services?
Avian Australia measures volume within its BIM services using high-accuracy 3D laser scanning and scan-to-BIM services. Laser scanners capture millions of data points to generate precise point clouds, which are converted into intelligent BIM models. This allows for reliable volume calculations across structures, earthworks, and building elements, supporting accurate cost planning, quantity take-offs, and construction decision-making.
How do Avian’s 3D BIM modelling services improve collaboration across project teams?
Avian’s 3D BIM modelling services create a shared digital environment where architects, engineers, consultants, and contractors work from a single, coordinated model. Through the combination of drafting and design service expertise and real-time updates and federated BIM models help to improve visibility across disciplines, reduce miscommunication, and streamline approvals. This collaborative BIM approach leads to fewer clashes, faster design resolution, and smoother project delivery from design through construction.
How do Avian’s BIM services benefit construction professionals?
Avian Australia’s BIM services provide construction professionals with millimetre-accurate 3D models derived from laser scanning and BIM modelling. These models integrate seamlessly with platforms such as Autodesk Revit, Civil 3D, CAD, Rhino, and MicroStation, enabling precise verification of as-built conditions, improved site coordination, progress tracking, and clearer communication between teams. By combining multiple BIM and surveying services under one provider, Avian helps reduce project risk, improve efficiency, and control costs.
Can Avian Australia’s BIM modelling and design services handle projects of different scales?
Yes. Avian Australia’s BIM drawing and modelling services are scalable and suited to projects of all sizes – from small architectural refurbishments to large commercial, infrastructure, and engineering developments. Utilising laser scanning technology and structured BIM workflows, Avian ensures consistent accuracy across all project complexities. With experience across Melbourne, Sydney, Brisbane, and regional Australia, Avian reliably supports BIM projects at every scale.
How does Avian Australia incorporate sustainability into its architectural BIM services?
Avian Australia integrates sustainability into its architectural BIM services by delivering accurate, data-rich BIM models that support energy analysis, material optimisation, and lifecycle planning. High-precision models enable architects and engineers to evaluate building performance early, identify opportunities to reduce waste, and enhance energy efficiency.
Why are architectural BIM modelling services essential for complex design projects?
Architectural BIM modelling services are essential for complex projects because they provide a highly accurate digital representation of real-world conditions before construction begins. Avian’s BIM models allow architects to validate design intent, analyse constructability, and identify potential risks early. When integrated with Avian’s broader BIM modelling and coordination services, this approach reduces rework, minimises construction delays, and improves overall project quality.
Can you convert existing CAD drawings to BIM?
Yes. Avian Australia can convert existing 2D CAD drawings into fully intelligent 3D BIM models. Where drawings are outdated or incomplete, we enhance accuracy using scan-to-BIM services and laser scanning, ensuring the resulting BIM model reflects current site conditions and meets required LOD standards.
Do you offer BIM coordination meetings?
Yes. Avian provides structured BIM coordination services, including clash detection and regular coordination meetings. Using federated BIM models, we help project teams identify, prioritise, and resolve design conflicts across architectural, structural, and MEP disciplines before construction begins.
When paired with our BIM modelling services, these insights help reduce construction risks and deliver high-quality outcomes across every phase of a project.
What file size can I expect for BIM models?
BIM model file sizes vary depending on project scale, level of detail (LOD), and model complexity. Avian optimises all BIM services deliverables to balance performance and accuracy, ensuring models remain manageable while retaining the detail required for coordination, construction, and asset management.
What software does Avian use for BIM services?
Avian uses industry-leading BIM software, including Autodesk Revit, Navisworks, Civil 3D, AutoCAD, and compatible point cloud processing platforms. This ensures seamless integration with consultant workflows and consistent delivery across all building information modelling services and coordination services.
How do I know if my project needs BIM services?
If your project involves complex design coordination, refurbishment of existing buildings, tight construction tolerances, or multiple stakeholders, BIM services can significantly reduce risk and improve outcomes. BIM is particularly valuable for commercial buildings, infrastructure, and projects requiring accurate as-built documentation or clash detection.
What is the difference between 2D CAD and 3D BIM?
2D CAD provides flat drawings with limited intelligence, while 3D building information modelling services create data-rich, intelligent models that represent geometry, materials, and building systems. BIM allows teams to visualise designs, detect clashes, analyse performance, and manage assets throughout the building lifecycle.