A professional site survey is the essential first step for any construction or infrastructure project. iO Geomatics LTD delivers sub-centimetre accurate, 3D geospatial data.
We combine Total Stations, GNSS, and high-speed mobile mapping to establish a reliable project baseline and minimise the risk of costly rework.
Or view our latest infrastructure case study.





We combine advanced surveying technology, including high-density laser scanning, UAV aerial mapping, and Mobile Mapping, with proven ground-based methods.
Our approach to a topographic survey is entirely flexible. We deploy the optimal tools where they add maximum value, ensuring the efficient capture of all natural and man-made features without unnecessary site disruption.
This establishes a robust project baseline, supporting coordinated design and reducing the risk of costly rework.

With 27 years in the field and Chartered Surveyor status, we bring deep industry knowledge to every project.

From mobilisation to delivery, our advanced tech captures more data, faster, without compromising quality.

We deliver high-accuracy results you can rely on, minimising delays, rework, and costly surprises.
Engineers and architects require a flawless transition from external site environments to internal structural data.
We deliver a unified survey solution, capturing comprehensive external topographic surveys alongside internal 3D measured building data to establish a single, coordinated baseline for design.

Focusing on the external environment, we capture precise data for site boundaries and terrain.
We deploy the optimal methods, from conventional surveying to Mobile Mapping, to deliver a reliable baseline dataset.

Focusing on structural interiors, we execute high-accuracy surveys across Ireland.
Utilising advanced 3D laser scanning, we map floor plans and complex elevations with minimal occupant disruption.

For expansive commercial sites or restricted terrain, our drone teams generate rapid, high-resolution aerial point clouds, perfectly complementing ground-level topographic surveys.

We process our survey capture into structured 3D Revit models and highly detailed AutoCAD deliverables, combining external topography and internal data into one coordinated package.
To guarantee your project receives the most reliable data, we strategically deploy the best-suited technology, always focused on verifiable accuracy:

Focus: Small to medium-sized sites and establishing primary control points.
iO Geomatics Advantage: We use high-precision Total Stations and GNSS to capture precise ground measurements and ensure all data is accurately geo-referenced and aligns with construction tolerances.

Focus: Large-scale, linear, or heavily trafficked infrastructure.
iO Geomatics Advantage: Our Mobile LiDAR systems capture detailed data along roads and rail corridors at speeds of up to 100km per day, significantly reducing time on site and improving safety compared to traditional methods.

Focus: Capturing vast areas efficiently and surveying hazardous or hard-to-access terrain.
iO Geomatics Advantage: Drones provide high-resolution imagery and point clouds, often complementing ground surveys to give a comprehensive overhead view of the site quickly.

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For over 27 years we have refined our operations to deliver high-quality, survey-grade data rapidly.
Our systematic process guarantees absolute accuracy from the first consultation to the final CAD handover.

We review your precise specification and project requirements to guarantee our data capture perfectly aligns with your engineering goals.



Our team deploys efficiently to sites nationwide, selecting the most appropriate methods based on access, terrain complexity, and strict deadlines.



We apply a blend of techniques, notably laser scanning and high-speed mobile mapping, to record terrain, boundaries, and complex utilities.



As a chartered practice, we enforce rigorous quality assurance. You receive fully coordinated AutoCAD and 3D Revit outputs ready for immediate design use.
Move away from outdated or incomplete data and establish a reliable project baseline with verified spatial information.
Send us your specification or project brief, and we’ll review it and provide a clear, competitive quotation.
Here are some frequently asked questions for Topographical Site Surveys in Ireland.
A digital land survey is a highly detailed, 3D map of a site’s existing features, essential for planning, design, and construction. It captures every natural and man-made detail, including:
Terrain and Boundaries: Contours, spot heights, and property lines.
Features and Assets: Utilities, road networks, elevations, and structures.
Survey speed depends on project scale, but modern methods ensure rapid delivery:
Small Sites: Conventional methods or drones are often used, with fieldwork completed in 1–2 days.
Large or Linear Sites: We use mobile mapping, which can survey 50+km in a single day, dramatically accelerating large projects.
We deliver data in all industry-standard formats to ensure seamless integration with your design team. Outputs include:
CAD Formats: DWG, DXF (ready for AutoCAD).
3D Models: Revit, IFC, and high-density Point Clouds (LAS, E57).
GIS and Imagery: Shapefile, GeoJSON, and Orthophotos (GeoTIFF).
Yes, absolutely. Our blended approach using advanced technology is perfectly suited for complex and large-scale infrastructure projects, including roads, rail, and utilities. We ensure rapid, high-precision data capture by leveraging:
Mobile Mapping: Captures linear infrastructure at high speed.
Drones/UAV Services: Cover vast areas efficiently for planning.
Not always. We use non-intrusive methods to minimise site disruption and safety risks. Our flexible approach allows us to collect comprehensive data using:
UAV Services: Surveying from above the site.
Mobile Mapping: Works efficiently from public rights-of-way.
Yes. We provide comprehensive utility mapping to ensure you have a complete digital model of your site, above and below ground. This is achieved using:
Ground Penetrating Radar (GPR): For subsurface utility detection.
Data Integration: Merging survey data with as-built records. Utility data is delivered in standard formats, including PAS 128.
Colin Murtagh is a Director at iO Geomatics LTD and a recognised expert in surveying and geomatics with over 27 years of industry experience. He specialises in advanced technologies such as Mobile LiDAR and GNSS control, ensuring that all land surveying projects across Ireland receive survey-grade data to eliminate rework.