Can I use a drone topographical survey for a planning permission application?

Yes. Drone topographical surveys are accepted by local authorities across Ireland for planning permission applications. Our surveys achieve u00b15cm accuracy, are delivered in Irish Transverse Mercator (ITM), and include DXF/DWG CAD files. We provide a survey report documenting methodology and accuracy achieved, which planning agents typically include in the application pack. If your planning consultant has a specific format requirement, send it to us before requesting a quote.

Drone Topographical Survey | ±5cm Accuracy, CAD-Ready Output

Engineering-grade topographic plans combining drone photogrammetry with survey-grade ground control. We deliver CAD-ready topographic drawings, DTMs, spot heights, and cross-sections – ready for your design team from day one.

Topographical survey pricing from €500

Last updated: April 2026

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±5cm Accuracy

CAD-Ready Output

EASA Certified

SURVEY ACTIVE

Drone LiDAR CAD contour lines topographical survey output, Ireland

Topographic Plans

Fully layered CAD drawings showing spot levels, contours, boundaries, structures, and site features at your chosen scale.

Digital Terrain Models

Accurate bare-earth Digital Terrain Models (DTM) and Digital Surface Models (DSM) for cut/fill analysis, drainage design, and earthworks surveys.

Spot Heights & Levels

Dense spot height grids and feature levels tied to Ordnance Survey datum for precise engineering design work.

Cross-Sections

Longitudinal and transverse cross-sections at your specified chainages for road design, drainage, and earthworks.

Volume Calculations

Drone cut and fill survey data quantifying earthwork volumes between existing ground and proposed design levels – ideal for earthworks tendering and construction budgeting.

OS Coordinate Data

All data referenced to Irish Transverse Mercator (ITM) or Irish National Grid with Malin Head datum heights.

Drone LiDAR topographic elevation heatmap survey Ireland

Topographic elevation heatmap – terrain colour-coded by height for drainage and design analysis

Drone survey terrain cross sections Ireland

Terrain cross-sections – extracted at user-defined intervals for engineering design and planning

DTM contour map – 0.25m interval contours for planning applications and flood risk assessment

Achill Island topographic survey classified LiDAR point cloud

Achill Island LiDAR – coastal topographic survey with classified ground and vegetation points

GCP Network & GNSS Control

We establish a network of ground control points using the Emlid RS3 GNSS receiver with NRTK correction via Ordnance Survey Ireland’s GEONET network. All surveys are delivered in Irish Transverse Mercator (ITM) with Malin Head height datum – fully compatible with OS Ireland mapping and engineering CAD systems.

Drone Flight & Image Capture

The DJI Matrice 300 RTK carries the Zenmuse P1 45MP full-frame camera at 80–100m altitude with 80% front and side overlap. Ground sampling distance of 1.5–2.5cm/pixel. For sites with dense vegetation or complex terrain, we fly the Zenmuse L2 LiDAR sensor instead to penetrate canopy and capture bare-earth data.

Photogrammetric Processing

Images are processed in DJI Terra and Pix4D to produce a dense point cloud, digital surface model (DSM), and true-orthophoto. GCPs are incorporated to achieve absolute accuracy of ±2–3cm horizontal and ±4–5cm vertical – sufficient for planning applications, cut/fill design, and engineering drawing production.

CAD-Ready Deliverables

Final deliverables include georeferenced orthophoto (GeoTIFF), DTM/DSM (LAS, GeoTIFF, ASCII grid), contour lines at 0.25m or 0.5m intervals (DXF/SHP), and a survey accuracy report. All in EPSG 2157. Most clients receive their data within 2 working days of the flight.

	Drone Topo (DSI)	Total Station / Level Survey
5-hectare site capture time	45 minutes	2–3 days
Point density	Millions of measured points	Hundreds of measured points
Vegetation penetration	LiDAR option for bare-earth	Manual clearance required
Coordinate system	EPSG 2157	EPSG 2157
Vertical accuracy	±4–5cm with GCPs	±5–10mm point-to-point
Site access required	Minimal – drone works from outside	Full traverse across the site
Best for	Large sites, rapid capture, contour maps	Small sites, structural, tight tolerances

Drone survey is not a replacement for all traditional survey methods. For tight-tolerance structural work or drainage invert levels, a robotic total station is still the right tool. For planning surveys, cut/fill design, and site contour maps over areas larger than half a hectare, drone survey is faster and more cost-effective.

What a planning topographic survey typically includes:

Existing site levels and contours (usually at 0.5m or 1m intervals)
Physical boundaries, access points, and adjoining road levels
Tree positions, heights, and canopy extents where relevant
Existing structures, walls, drainage features, and visible services
Georeferenced data in Irish Transverse Mercator (ITM) for compatibility with planning maps
DXF/DWG output that drops straight into your architect’s CAD workflow

What it does NOT typically cover:

Drainage invert levels – manhole covers must be lifted and measured by hand
Underground services – gas, water, fibre, and power need GPR or utility mapping survey
Sub-millimetre structural or deformation monitoring – use a robotic total station instead
Legal boundary determination – Land Registry-compliant boundaries need a chartered surveyor
Internal building floor plans – drone survey is exterior; interiors need a measured building survey
Setting-out and construction pegging – a separate post-design service after planning consent

A topographical survey maps the physical features and elevation of a site, including ground levels, contours, boundaries, buildings, trees, and services. It provides the foundation data that architects, engineers, and planners need to design projects that work with the existing terrain.

Our drone topographical surveys achieve ±5cm accuracy in both horizontal and vertical dimensions. We use RTK/PPK GNSS ground control and independent check points to verify every survey. This meets the accuracy requirements for most engineering design and planning applications.

Most sites can be captured in a single day, including ground control setup and drone flights. A typical 5-hectare site takes 2–3 hours on the ground. You will receive your processed CAD deliverables within 2 working days of the site visit.

We place survey-grade ground control points (GCPs) across your site and measure them with RTK GNSS to centimetre accuracy. These control points tie the aerial data to the national coordinate system and are used to verify the accuracy of the final deliverables. We handle all of this as part of the service.

By default, we deliver in Irish Transverse Mercator (ITM) with Malin Head datum heights. We can also deliver in Irish National Grid, WGS84, or any other EPSG coordinate system your project requires. Just let us know your preference when you request a quote.

Absolutely. Drone surveys are ideal for large sites – we regularly survey areas of 100+ hectares. The larger the site, the greater the cost and time savings compared to traditional ground survey methods. We plan multi-battery missions to ensure complete, seamless coverage of your entire project area.

Yes. Drone topographical surveys are accepted by local authorities across Ireland for planning permission applications. Our surveys achieve ±5cm accuracy, are delivered in Irish Transverse Mercator (ITM), and include DXF/DWG CAD files that drop straight into your architect’s or engineer’s workflow. We provide a survey report documenting methodology and accuracy achieved, which planning agents typically include in the application pack. If your planning consultant has a specific survey brief or format requirement, send it to us before you request a quote.

How we measure: Topographical Survey

RTK-corrected photogrammetry on DJI M300 RTK or Matrice 4 Enterprise. ±5cm horizontal/vertical on soft ground, ±2cm on hard surfaces where dense ground control can be placed. All outputs in Irish Transverse Mercator (ITM) with OSGM15 Malin Head vertical datum — directly compatible with Irish planning applications, Building Control submissions, and BIM workflows. GCP network designed and validated against OSi active stations on every project.

Surveys conducted under EASA Specific Category approvals. Coordinator: Fergal McCarthy, founder of Drone Services Ireland (2016) and Secretary of Drone Professionals Ireland.

Drone Topographical Survey | ±5cm Accuracy, CAD-Ready Output

Key Deliverables

Topographic Plans

Digital Terrain Models

Spot Heights & Levels

Cross-Sections

Volume Calculations

OS Coordinate Data

Topographic Survey Deliverables

Need a Topographic Survey for Your Project?

How an Engineering-Grade Topo Survey Works

GCP Network & GNSS Control

Drone Flight & Image Capture

Photogrammetric Processing

CAD-Ready Deliverables

Drone Topo vs Traditional Level Survey

What the Survey Data Looks Like

Who Uses Topographical Surveys?

Residential Development

Commercial Construction

Road & Infrastructure

Drainage Design

Planning Applications

Cut & Fill Earthworks

Solar Farm Design

Boundary Disputes

Drone Survey for Planning Permission Ireland

What a planning topographic survey typically includes:

What it does NOT typically cover:

Frequently Asked Questions

Related Resources

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How we measure: Topographical Survey

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