EASA-Certified
·
500+ Projects
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2-Day Turnaround
Heritage & Conservation

Drone Heritage Recording Ireland

Aerial survey and photogrammetric recording of historic structures, archaeological sites, and built heritage. Detailed 3D models, orthomosaics, and condition records for conservation management, planning, and Built Heritage Investment Scheme documentation.

Survey pricing from €600

Last updated: April 2026

EASA Certified
Photogrammetric 3D Models
Conservation-Grade Records
SURVEY ACTIVE
Aerial drone survey of historic abbey ruins in Ireland
EASA & IAA
Certified Operators
€13M
Public Liability Insurance
500+
Projects Nationwide
Since 2016
one of Ireland’s longest-established
2-Day
Turnaround on Reports

Key Deliverables

Conservation-grade survey outputs for planning applications, BHIS documentation, conservation management plans, and architectural records.

Photogrammetric 3D Model

High-density 3D mesh model of the structure derived from overlapping aerial and oblique imagery. Suitable for condition assessment, change monitoring, and publication.

Georeferenced Orthomosaic

Plan-view aerial map of the site georeferenced to ITM coordinates, suitable for overlaying on OS maps, site plans, and planning submissions.

Condition Record

Illustrated written record of the structure’s current condition, identifying areas of deterioration, vegetation growth, water ingress, and structural concern for conservation management planning.

HD Photographic Archive

Full library of high-resolution aerial and oblique photographs providing a permanent photographic record of the structure as surveyed – suitable for publication and archive submission.

Elevation Drawings

Accurate elevation drawings of facades and standing structures extracted from the 3D model – reducing the need for scaffolding-based measured survey work.

BHIS & Planning Documentation

Survey records formatted for Built Heritage Investment Scheme applications, conservation planning conditions, and National Monuments Service submissions.

From Abbey Ruins to Protected Structures

We record national monuments, protected structures, vernacular buildings, and industrial heritage. Aerial survey captures what ground-based methods cannot – the full context, scale, and condition of a heritage asset in a single visit.

3D
Photogrammetric Models
HD
Archive Photography
2-Day
Delivery
ITM
Georeferenced

How We Record Heritage Structures

Rigorous photogrammetric methodology producing conservation-grade records in a single site visit – without scaffolding or access equipment.

01

Pre-Survey Research & Planning

We review existing record drawings, RPS listings, National Monuments registration, and any available archival material before arrival. Flight planning accounts for the structure’s geometry – for complex multi-element sites like abbeys or castle complexes we plan separate flight zones to ensure complete coverage of all standing fabric.

02

Aerial & Oblique Photography

The drone captures systematic overlapping nadir (plan) imagery for orthomosaic production plus oblique passes at multiple angles and altitudes to capture wall faces, architectural detail, and structural relationships. For 3D modelling we use a minimum 80% overlap in all directions to ensure complete coverage of all surfaces including reveals, openings, and recesses.

03

Photogrammetric Processing

Imagery is processed through photogrammetric software to generate a dense point cloud, 3D mesh, and georeferenced orthomosaic. The 3D model is scaled and georeferenced using either GCPs or the drone’s RTK positioning. Elevation drawings and cross-sections are extracted from the model, eliminating the need for traditional scaffold-based measured survey.

04

Record & Report Delivery

The completed heritage record includes the condition report, photographic archive, 3D model files (OBJ/E57/LAZ), georeferenced orthomosaic, and any required elevation drawings. All outputs are delivered within 48 hours. We work with the client’s conservation architect or heritage consultant to ensure the format meets their specific submission requirements.

What Heritage Survey Data Looks Like

From aerial orthomosaics of abbey ruins to photogrammetric 3D models of historic structures – delivered in conservation-grade formats for archive and planning submissions.

Aerial drone survey orthomosaic of historic abbey ruins in Ireland
Georeferenced aerial orthomosaic of historic abbey ruins for conservation record and planning
Aerial drone photograph of Dunguaire Castle, Kinvara, Galway
Aerial survey of Dunguaire Castle, Kinvara – heritage recording and condition documentation
Drone photogrammetry 3D model of stone arch viaduct in Ireland
Photogrammetric 3D model of stone arch viaduct – elevation extraction and condition assessment

Why Heritage Professionals Choose DSI

Rigorous photogrammetric methodology, EASA certification, and experience recording Ireland’s built heritage.

EASA Specific Category
Authorised to fly close to national monuments, within protected areas, and near populated heritage sites where standard operators are restricted.
€13M Public Liability
Full insurance required by OPW, local authorities, and conservation project funders. Certificate available on request for grant applications and planning submissions.
Conservation-Grade Accuracy
RTK-positioned photogrammetry producing models accurate to ±3cm – sufficient for elevation drawing extraction and formal heritage record submission.
Operating Since 2016
Recording Ireland’s built heritage since 2016. Experience across national monuments, protected structures, industrial heritage, and vernacular buildings nationwide.

Frequently Asked Questions

Everything you need to know about our drone heritage recording service.

Yes – national monuments require consent from the National Monuments Service under the National Monuments Acts. We advise on the permit process and can assist with the application. Our EASA Specific Category authorisation demonstrates the operational competency required for close-range survey of sensitive sites.
Using RTK positioning and ground control points, our photogrammetric models achieve ±3cm accuracy – sufficient for producing scaled elevation drawings to 1:50 or 1:100 scale. This meets the accuracy requirements for formal heritage record submissions and conservation planning conditions.
Yes – aerial recording is particularly valuable for structures in poor condition, on unstable ground, or in locations where access equipment would cause damage. The drone can survey the full structure from the air without any contact with the fabric, making it the preferred method for fragile or inaccessible heritage structures.
We deliver in OBJ/MTL with texture maps, E57 point cloud format, LAZ compressed LAS, and georeferenced GeoTIFF orthomosaics. We can also produce DWG/DXF elevation drawings on request. We coordinate with your conservation architect or project team to ensure deliverables are in the formats required for your project.
Drone-based photogrammetric survey is increasingly accepted as a primary recording method by the National Inventory of Architectural Heritage and local authority conservation officers. The key requirements are sufficient image resolution, georeferencing, and a condition assessment written by a suitably qualified professional. We work with conservation architects who can provide that written assessment alongside our survey data.

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