Drone Topographical Surveys in Ireland
Survey-grade accuracy of ±5cm for engineers, architects, planners, and developers. CAD-ready deliverables in ITM/IRENET95 projection, processed and returned within one to two working days. Photogrammetry and LiDAR capability for any site condition.
Typically 60-70% cost savings compared to traditional ground surveys
Topographical Survey Services Explained
How we capture, process, and deliver survey-grade topographic data for your project
Drone Services Ireland delivers comprehensive topographical surveys combining photogrammetry and LiDAR technology. We provide CAD-ready deliverables verified to ±5cm accuracy, with access to licensed surveyors for projects requiring professional sign-off.
A drone topographic survey captures the natural and man-made features of a site from the air, producing an accurate, scaled representation of the ground surface. The survey records elevation data, contours, spot heights, ground features, boundary lines, structures, roads, watercourses, vegetation, and services including overhead power lines and poles.
The output is a detailed topographic drawing or model that engineers and designers use as the foundation for site design, planning submissions, volume calculations, and construction layout.
The result is not a sketch or an approximation. It is a survey-grade topographic plan with ±5cm accuracy in X, Y, and Z coordinates, verified against ground control points and suitable for engineering design.
Project scoping and mission planning begin before we arrive on site. We review the survey boundary, confirm deliverables and accuracy standards, and plan the flight using terrain-following to maintain consistent ground sampling distance across the full survey area.
Ground control points (GCPs) are established on site using RTK GNSS to provide known reference coordinates. For some projects, we operate in full RTK or PPK mode where the drone records centimetre-accurate positions in real time, reducing GCP requirements while maintaining accuracy.
Data capture uses our DJI Matrice 300 RTK with either the Zenmuse P1 photogrammetry camera (45 MP full-frame) or the Zenmuse L2 LiDAR payload. For open ground, photogrammetry delivers excellent results. Where vegetation obscures the ground, we deploy LiDAR to capture bare-earth elevation data.
Processing uses Pix4D, Agisoft Metashape, and 3D Survey. Raw data is classified, processed into a DTM, and used to generate contour lines and feature linework. CAD drawings are delivered in DWG/DXF format in IRENET95/ITM projection (EPSG:2157) with Malin Head vertical datum.
Photogrammetry works best on open sites with minimal vegetation where the ground surface is visible from above. It produces high-resolution orthomosaic imagery alongside elevation data, ideal for construction sites and open terrain. It requires good light conditions and cannot penetrate vegetation.
LiDAR is essential when the site has vegetation, tree canopy, long grass, or scrub that obscures the surface. LiDAR laser pulses penetrate gaps in foliage to record the bare-earth surface beneath, producing accurate DTMs that photogrammetry cannot achieve on vegetated sites.
Combined LiDAR and photogrammetry delivers the best of both. LiDAR provides bare-earth data and captures features like power lines that photogrammetry misses, while photogrammetry provides colourised imagery and visual context.
Some projects require a licensed surveyor for professional sign-off, boundary verification, or statutory compliance. We have access to licensed surveyors who can review and verify our topographical survey outputs and provide professional survey reports.
This is particularly relevant for planning submissions where the local authority or An Bord Pleanála requires certification by a qualified surveyor, and for engineering projects where the design team needs assurance that the data meets professional survey standards.
Our survey data is produced to a standard that licensed surveyors are comfortable certifying, because the equipment, workflows, and accuracy levels match or exceed those of conventional survey methods.
Engineering-grade data you can rely on
All deliverables are produced in IRENET95/ITM projection (EPSG:2157) with Malin Head vertical datum as standard, verified against independent ground control points and formatted for direct import into AutoCAD Civil 3D and GIS platforms.
Drone Topo vs Traditional Total Station Survey
| Factor | Drone Topographical Survey | Traditional Total Station |
|---|---|---|
| Capture Time (5 acres) | 30-45 minutes flight | 1-3 days on site |
| Data Density | Thousands of points per m² | Selective points (operator chooses) |
| Vertical Accuracy | ±3-5cm with GCPs | ±1-2mm |
| Cost (5-acre site) | €800 - €1,500 | €2,500 - €5,000 |
| Visual Record | Full orthomosaic included | Not included |
| 3D Model | DTM, DSM, and 3D mesh | Lines and points only |
| Site Disruption | Minimal (airborne) | Crew walking full site |
Survey Deliverables
CAD-ready outputs verified to ±5cm accuracy, formatted for your engineering and planning workflows
Topographic CAD Drawings
Contour lines at specified intervals, spot heights, feature linework, and annotation. Delivered in DWG/DXF format for AutoCAD Civil 3D.
Digital Terrain Models (DTM)
Bare-earth elevation data with vegetation and structures removed. Essential for cut-and-fill calculations, drainage design, and road alignment.
Digital Surface Models (DSM)
Full surface including vegetation and buildings for line-of-sight analysis, visual impact assessments, and planning context.
Orthomosaic Imagery
True-to-scale, georeferenced aerial photograph of the site from which direct measurements can be taken.
Dense Point Clouds
LAS/LAZ format for clients who process their own data or require integration with existing geospatial datasets.
Cross-Sections & Profiles
Longitudinal and cross-sectional profiles extracted along specified alignments for road design, pipeline routes, or corridor assessments.
IRENET95/ITM Projection
All deliverables produced in EPSG:2157 with Malin Head vertical datum as standard. Alternative coordinate systems available on request.
Reading Your Topographical Survey Data
Not everyone works with survey data every day. Here is a plain English explanation of what you will receive and what it means.
DTM (Digital Terrain Model)
A 3D surface showing ground elevation across the site. Think of it as a digital version of the terrain with buildings and vegetation stripped away. Your engineer uses this for cut-and-fill calculations, drainage design, and earthworks planning. It is the foundation of most site design work.
Contour Lines
Lines connecting points of equal elevation. We typically generate at 0.25m intervals for detailed earthworks design, 0.5m for general planning applications, and 1m for large rural sites. If you are not sure which interval you need, ask your engineer before we process the data. It saves a revision.
Spot Heights
Individual elevation readings at specific locations. Different from contours because they mark exact levels at key features: road centrelines, manhole covers, floor levels, kerb lines, and drainage inverts. We place these where they matter most for your design, not just on a random grid.
ITM Coordinates
Irish Transverse Mercator (EPSG:2157) is the national coordinate system. All our survey data is referenced to ITM with heights on Malin Head datum. This means your data ties directly into Ordnance Survey mapping and is ready for planning submissions without any conversion.
DXF Layer Structure
When you open the DXF file in AutoCAD or Civil 3D, you will see separate layers for contours (major and minor), spot heights, site boundary, buildings, fences, walls, trees, roads, and other mapped features. We use standard layer naming conventions so your design team can work with the file immediately. If your office uses a specific layer template, send it to us before we process and we will match it.
Not Sure Which Survey Method You Need?
Whether your site needs photogrammetry, LiDAR, or a combination of both, we will recommend the right approach and provide a fixed-price quote within 24 hours.
When You Need a Drone Topo (and When You Don't)
Good fit for a drone topo:
- Pre-planning surveys for housing developments, where you need accurate contours across the full site before design begins.
- Road design and realignment projects. The dense data means your engineer gets continuous elevation along every possible alignment, not just selected points.
- Drainage and earthworks design. Cut-and-fill volumes calculated from drone data are accurate to within 2-3% of actual, which is more than sufficient for tender pricing.
- Renewable energy sites, wind and solar, where large areas need to be surveyed quickly and affordably.
- Any site over half an acre where you need elevation data for design or planning.
Not the right fit:
- You need underground utility mapping. That requires GPR (ground penetrating radar) and a CAT scanner on the ground. We can fly the topo and a utility surveyor can handle the subsurface work separately.
- You need a legal boundary survey. A boundary survey determines property lines and requires a chartered land surveyor. A topo survey maps what is on the ground, not who owns it.
- A single building footprint. For one structure on a small plot, a surveyor with a total station is quicker and cheaper.
Survey Applications
Trusted by engineers, architects, planners, and developers across Ireland
Renewable Energy Sites
Wind farm access road planning, solar farm site preparation, turbine positioning, cable routes, and EIA submissions.
Learn moreConstruction & Development
Pre-planning ground conditions, architectural layouts, drainage design, foundation levels, and cut-and-fill volumes.
Learn morePlanning Submissions
Topographical survey data meeting local authority requirements for residential, commercial, and infrastructure planning packs.
Learn moreLinear Infrastructure
Road schemes, greenways, pipeline routes, and power line corridors surveyed efficiently with LiDAR and photogrammetry.
Learn moreQuarries & Earthworks
Cut-and-fill volumes, material movement tracking, and progressive volume reports for quarry operators and contractors.
Learn morePower Line Corridors
Pole positions, pylon heights, cable sag measurements, and ground clearance data captured by LiDAR.
Learn moreHow We Work
Our process from initial scope through final delivery
Scope & Plan
Share your survey boundary and requirements. We confirm deliverables, accuracy, coordinate system, and provide a fixed-price quote.
GCPs & Fly
Ground control points are placed using RTK GNSS. Our pilot captures data using photogrammetry, LiDAR, or both sensors.
Process & Extract
Point cloud classification, DTM generation, contour extraction, and CAD drawing production in your required format.
Verify & Deliver
Data verified against independent checkpoints. CAD drawings, models, and imagery delivered within one to two working days.
±5cm
Survey-Grade Accuracy
50+
Hectares Per Half Day
32
Counties Covered
1-2days
Typical Turnaround
Coverage Map
Areas We Cover
Nationwide deployment across the island of Ireland
We conduct topographical surveys across the Republic of Ireland and Northern Ireland. For renewable energy projects, we frequently deploy in the Midlands and Western counties. For multi-site projects, we efficiently schedule deployments to reduce mobilisation costs.
Can't see your county? We cover all 32 counties. Contact us with your site location for a quote.
Why Choose Drone Services Ireland?
Ireland's most experienced aerial topographical survey team
Operating Since 2016
One of Ireland's longest-established drone survey operators with extensive experience across wind farms, solar farms, construction sites, and infrastructure projects.
Photogrammetry & LiDAR
Both technologies available from one provider. We survey any site regardless of ground conditions, vegetation, or terrain complexity.
Licensed Surveyor Access
Professional sign-off available for planning submissions and engineering projects requiring certified survey data.
EASA Specific Category
Authorised for operations in controlled airspace. €6.5 million public liability insurance. Full regulatory compliance.
Industry Leadership
Secretary, Drone Professionals Ireland. Former Chair, IPDPA. Former Co-Chair, UAAI. A depth of experience clients rely on.
Fast Turnaround
Processed deliverables typically returned within one to two working days from data capture. Priority delivery available for time-critical projects.
Frequently Asked Questions
Our standard accuracy is ±5cm in X, Y, and Z coordinates, verified against ground control points. This meets engineering survey standards and is suitable for planning submissions, construction design, and volumetric calculations. For projects requiring tighter tolerances, we can adjust our methodology to achieve higher accuracy.
A typical site of up to 50 hectares can be surveyed in half a day. Processed deliverables (point cloud, DTM, orthomosaic, CAD drawings) are usually returned within one to two working days. Larger sites or projects with complex deliverable requirements may take longer. We provide a timeline estimate at the quoting stage.
Unless otherwise specified, all deliverables are produced in IRENET95/Irish Transverse Mercator (EPSG:2157) with Malin Head (OSGM15) vertical datum, which is the standard for engineering and planning work in Ireland. We can deliver in alternative coordinate systems on request.
This depends on the local authority and the scale of the development. Some planning authorities accept drone survey data without a professional surveyor’s sign-off; others require certification by a licensed surveyor. We can arrange a licensed surveyor review and sign-off through our surveyor network if your project requires it.
Use LiDAR when your site has vegetation, tree canopies, tall grass, or other ground cover that obscures the surface. LiDAR penetrates vegetation to capture the bare-earth surface beneath. Photogrammetry works well on open ground where the surface is visible from above. For sites with mixed conditions, we can combine both technologies in a single survey.
A drone topographic survey typically costs 60-70% less than an equivalent traditional survey using total stations and GNSS rovers. The time saving is even greater on large sites, where a drone can capture in hours what would take a ground crew days or weeks. The drone also captures a much denser dataset, providing millions of data points compared with the hundreds or thousands a ground surveyor would typically record.
Yes. Our LiDAR and photogrammetry case study demonstrates exactly this. We surveyed 15 km of power lines along the site topography, extracting pole positions, pylon spot heights, cable sag measurements, and ground clearance data, and entered them into CAD drawings. LiDAR is essential for capturing thin cable features that photogrammetry cannot reliably reconstruct.
Request a Topographical Survey Quote
Share your site boundary and requirements. We will confirm the right survey method, deliverables, and a fixed price within 24 hours.