Drone Feature and Contour Survey
Drone feature and contour survey is fast, accurate aerial mapping for development sites, infrastructure projects, and large or inaccessible landholdings, delivering CAD-ready deliverables referenced to AHD.
Ready to scope your project?
What is a drone feature survey?
A drone feature land survey is the systematic aerial capture of site features, contours, and ground levels using a UAV equipped with a high-resolution camera or LiDAR sensor.
The resulting imagery and point data are processed through photogrammetric software to generate orthophotos, digital terrain models, and CAD-ready feature plans referenced to AHD — datasets your design and engineering team can rely on immediately.
Need a known parcel measured on the ground? Our land surveys complement aerial capture for high-precision, small-site work.
From raw imagery to survey-grade data
Every drone feature survey is built around three technical foundations that turn aerial imagery into an AHD-referenced, survey-grade dataset.
Photogrammetry
3D from 2D imagery
Overlapping aerial photographs are processed to derive precise three-dimensional measurements across the entire site.
GSD
Ground sample distance
The real-world distance represented by one image pixel — typically 10–25mm at an 80m flight altitude.
GCPs
Ground control points
Surveyed reference targets used to georeference the aerial dataset and lock it to real-world coordinates.
Standard deliverables
Orthophoto
A geometrically corrected aerial image with uniform scale.
Digital Surface Model
Elevation grid including buildings and vegetation.
Digital Terrain Model
Bare-earth elevation grid with vegetation removed.
Contour Plan
Vector contours at 0.25m, 0.5m, or 1.0m intervals.
Feature Plan
Annotated CAD plan of buildings, services, fences, and vegetation.
How Avian conducts a survey
An end-to-end, five-stage process managed by a licensed pilot and experienced survey team — designed to minimise site disruption and deliver certified, project-ready data on time.
Pre-Flight Planning
Site review, airspace check, CASA notifications, and flight altitude and overlap calculation before any equipment reaches the ground.
GCP Placement
UAV Flight
A RePL-licensed pilot flies an autonomous mission capturing 150–300 images per hectare at locked, consistent overlap and GSD.
Processing
Deliverables
A dual-platform fleet
We select the right sensor system based on site conditions, vegetation density, and accuracy requirements. All hardware is maintained to manufacturer specifications and calibrated prior to deployment.
RGB Photogrammetry Drones
High-resolution RGB cameras purpose-built for aerial mapping. At standard flight altitudes they deliver a GSD of 10–25mm — sufficient for most commercial development, civil, and infrastructure work requiring plan and contour output at 1:500 or better.
LiDAR-Equipped UAVs
Achievable accuracy by method
When to use a drone survey
A drone feature land survey becomes the logical choice when ground-based methods are impractical, too slow, or unable to capture the full spatial extent of a site.
Property Development & Feasibility
For sites of 5 hectares or more, a drone survey delivers a complete spatial picture in a fraction of the time of traditional ground methods — topography, vegetation, structures, services, and adjoining boundaries.
Common deliverables
- Site context plan
- Contour map
- Volume calculation
- 3D model
Sloping or Vegetated Sites
Where steep terrain or dense vegetation make ground-crew deployment slow and costly, LiDAR-equipped UAVs penetrate up to 80% of vegetation for reliable ground returns and accurate terrain models.
Common scenarios
- Forested rural blocks
- Riparian zones
- Steep hillside developments
Restricted Ground Access
When site conditions pose a safety risk or operational disruption, aerial capture eliminates the need for personnel on the ground entirely.
Common scenarios
- Live mining pit
- Operational rail corridor
- Contaminated land
- Active construction zone
Drone feature survey cost in Melbourne
A drone feature contour survey starts at $3,500 for sites under 5 hectares using standard photogrammetry. Final cost is driven by site area, terrain complexity, accuracy tier, deliverable formats, and turnaround urgency.
* Pricing valid as of January 2026. Updated quarterly. Project-specific quotes within 24 hours.
CASA, RePL & ReOC compliant
All Avian drone operations are conducted in full compliance with Australian aviation law. CASA oversees civil aviation safety, including unmanned aircraft systems, regulated under Part 101 of the Civil Aviation Safety Regulations 1998 and the Part 101 Manual of Standards.
Operator Type
Pilot Experience
Drone vs ground-based survey
The right method depends on site scale, the accuracy specification in your brief, and how the data will be used downstream.
Industries we serve
We deliver drone feature and contour surveys across the full spectrum of land development and asset management — and we understand the downstream workflows each sector relies on.
Property Development
Site feasibility, due diligence, and DA submission support — the topographic and contextual data development managers need to progress through approvals with confidence.
Civil Engineering
Construction
Mining & Resources
Stockpile volumetrics, pit surveys, and haul-road mapping — survey-grade data without ground-crew entry into active or contaminated areas.
Land Management
Environmental baseline surveys, riparian mapping, and vegetation classification across large, remote, or ecologically sensitive landholdings using LiDAR.
Why choose Avian
Public Liability Insurance
Satisfying the insurance requirements of major construction contracts, government procurement, and private development mandates.
CASA-Certified Pilots
Photogrammetry + LiDAR
Pilot Experience
Quote Turnaround
CAD Format Outputs
Our Drone Feature and Contour Survey Projects in Melbourne
Popular Melbourne Metropolitan Area and Inner Suburbs We Cover
Contact the Avian today to discuss your land surveying project
FAQs about Drone Feature and Contour Survey
We have answered some common questions that AEC clients have about our land surveying services in Melbourne.
A drone feature survey in Melbourne starts at $3,500 for photogrammetry on sites under five hectares. LiDAR-equipped surveys start at $6,500 for the same site size. Final cost scales with site area, accuracy tier, terrain complexity, and required turnaround. Avian provides project-specific quotes within 24 hours.
With RTK GNSS and a dense GCP network (8–12 points), Avian achieves ±20mm horizontal and ±30mm vertical accuracy – sufficient for engineering design and BIM-grade output. Standard GCP configurations deliver ±30–50mm, which covers the majority of commercial development and civil applications. RTK-only surveys without GCPs are suitable only for reconnaissance, with accuracy typically ±100mm or worse.
Not always, but every survey requires a pre-flight airspace check regardless of approval status. Surveys in controlled airspace, near aerodromes, or above standard altitude limits require formal CASA authorisation via the AAN system. Avian manages all regulatory notifications and approvals as part of every project scope.
Use a drone feature and contour survey when your site is five hectares or larger, has significant vegetation or steep terrain, involves restricted ground access, or requires rapid data capture across a broad area. For smaller sites requiring millimetre point accuracy, our ground-based feature and level survey service is the better fit.
Standard deliverables include an orthophoto (GeoTIFF), Digital Surface Model, Digital Terrain Model, vector contour plan, and annotated CAD feature plan, delivered in DWG, GeoTIFF, LAS, OBJ, and FBX formats. All outputs are certified by a project surveyor and referenced to AHD.