Table of Contents
Public sector projects have specific documentation needs
The OPW, TII, Irish Water, and local authorities run some of the biggest construction programmes in Ireland – flood relief, national roads, water infrastructure, public buildings. They all need robust progress documentation, auditable measurement, and transparent reporting for funding bodies and oversight committees.
Drone monitoring fits these requirements well. Here’s how it applies across different public sector programmes.
OPW flood relief schemes
OPW flood schemes involve heavy earthworks – channel construction, embankment building, floodwalls, culverts – often in sensitive river corridor locations.
Volume verification
Drone-based volume measurement gives the independent verification that public spending audit demands. Each measurement produces a full dataset – point cloud, surface model, volume calculation, accuracy report – creating an audit trail that stands up to scrutiny from the C&AG.
Environmental compliance
Flood schemes operate under stringent conditions – planning, EPA licences, Appropriate Assessment. Regular drone surveys document:
- Silt control measures and their condition
- Working areas relative to environmental exclusion zones
- Watercourse condition upstream and downstream of works
- Riparian vegetation protection
- Erosion at channel works interfaces
Stakeholder communication
Drone orthomosaics and 3D models are excellent material for public information days, community briefings, and updates to elected representatives. One aerial image communicates progress better than pages of text.
TII road and rail projects
TII’s capital programme includes national road improvements, motorway maintenance, and rail infrastructure. Drone monitoring supports:
- Cut-and-fill tracking across linear road schemes spanning several kilometres
- Regular progress reports showing work fronts advancing along the route
- As-built records of completed works for handover
- Safety documentation – traffic management, temporary works, compound layouts
For the existing network, drone condition assessment supports TII’s pavement management programme.
Irish Water projects
Water and wastewater projects – treatment plants, pipelines, reservoirs – benefit from:
- Progress documentation on treatment plant construction
- Pipeline route recording showing trench, pipe installation, and reinstatement
- Reservoir and tank construction progress
- Temporary compound and access documentation
Local authority projects
County and city councils run diverse programmes – housing, roads, public realm, recreational facilities.
- Social housing: Monthly progress documentation for Department of Housing reporting
- Road schemes: Survey and monitoring for local road projects
- Public realm: Visual documentation of urban improvement works
- Waste facilities: Volumetric monitoring and environmental documentation
Procurement
How to buy drone survey services
Typically procured as standalone (mini-comp under a framework, or direct procurement below threshold) or as part of the main contract’s survey requirements. For standalone procurement, see our guide on writing a specification.
Public Works Contract
Under the PWC forms, drone survey can be a provisional sum item (surveys instructed by the ER) or a contractor obligation. Either way, the measurement methodology and deliverable format need to be clearly specified in Works Requirements.
Value for money
Drone monitoring typically runs 60 to 80% less than equivalent traditional survey and photography programmes when you factor in all costs – surveyor time, traffic management, processing, reporting. You get more data per euro than any alternative monitoring method.
Data handling
For public sector work, we comply with:
- GDPR for any imagery capturing identifiable persons
- Data retention policies aligned with contract and audit requirements
- Secure file transfer
- Irish/EU-based data storage
Our public sector experience
We’ve been providing survey and monitoring to public sector clients across Ireland since 2016 – local authority projects, OPW schemes, state agency contracts. We understand the documentation, reporting, and procurement requirements.
Get in touch to discuss your project, or see our case studies.
Specific OPW and TII standards engineering consultancies need to know
Two documents govern almost every public-sector drone survey request in Ireland. Knowing them by name is the difference between a compliant deliverable and a re-submission.
- TII Drafting Standard DS-TII-01020 sets out the CAD layering, symbology and drawing structure that all Transport Infrastructure Ireland submissions must follow. Any drone survey deliverable that touches a national road, a motorway, a public transport corridor or a TII-managed asset is expected to land in this format. DSI delivers DWG and DXF output pre-configured against DS-TII-01020 so engineering consultancies do not have to re-layer the data before inserting it into their design drawings.
- OPW Capital Works Management Framework (CWMF), maintained by the Department of Housing, Local Government and Heritage, is the document that specifies how BIM, survey data and record drawings are handled on public works contracts. Any public-sector tender over the current value threshold expects deliverables in line with the CWMF. Drone survey outputs feed the topographic and as-built components of the CWMF deliverable schedule.
A live example: the March 2026 OPW drone surveying services tender
In March 2026, the Office of Public Works published a tender on eTenders.gov.ie for drone surveying services, covering topographic surveys, condition inspection and volumetric measurement across its portfolio of flood defence assets, heritage sites and public buildings. The scope confirms what we have been saying for the last two years: Irish public-sector demand for drone survey services is no longer speculative, it is a line item on the procurement calendar of the largest property-holding department in the state. If your consultancy works on public-sector projects, searching eTenders.gov.ie for “drone” and “UAS” should now be part of your weekly pipeline review.
How to add DSI to an engineering framework
Most Irish public-sector drone survey work does not go through a standalone drone services tender. It comes through an engineering consultancy framework where drone survey is part of a wider topographic, environmental or condition assessment package. For consultancies that already sit on an OPW, TII, Uisce Éireann or local authority framework, the fastest way to offer drone deliverables without carrying the licence, insurance and equipment cost in-house is to add DSI as a named specialist sub-supplier. The steps are straightforward:
- Request a specialist sub-supplier form from your framework manager. Most frameworks allow the addition of named sub-suppliers for specialist scope the prime did not tender.
- Share the DSI insurance certificates, EASA Specific Category authorisation, operational manual reference and prior project evidence. We keep this pack ready to email on request.
- Update your framework capability statement to list drone surveying, drone LiDAR, thermal inspection and condition assessment with DSI as the delivery partner.
- Reference the DSI partnership when responding to call-off competitions under the framework. This is the single fastest route to adding drone survey revenue without additional capex or training cost.
Engineering consultancies that have added us under this model typically see first revenue within the first three to six months, once the first call-off that needs drone data arrives.
eTenders checklist for public-sector drone survey commissions
Most Irish public-sector drone work is procured through eTenders, either as a standalone survey contract or as a specified sub-item within a larger engineering or environmental services contract. Whether you are drafting a brief for publication or responding to one, the following checklist captures what we see on well-scoped public-sector tenders.
Mandatory insurance and authorisation evidence
- IAA Specific Category drone operator authorisation, valid for the flight category required.
- Public liability insurance to a minimum of €5 million, with confirmation the insurer covers drone operations specifically.
- Employers’ liability insurance where the operator has staff.
- Operator safety management system (OSMS) or equivalent documented procedures.
Technical specification essentials
- Target vertical and horizontal accuracy stated in metres, with the tolerance budget clearly broken down.
- Deliverable coordinate reference system specified (ITM horizontal, ODM vertical is standard).
- Deliverable formats for both raw and processed data (LAS/LAZ, GeoTIFF, DWG, PDF, Shape).
- Ground sample distance or equivalent resolution specification.
- Frequency of survey for monitoring contracts, with defined tolerance windows for weather delays.
- Handover and acceptance criteria with a defined review period.
Evaluation criteria that reward quality over price
The MEAT (Most Economically Advantageous Tender) framework used under EU procurement allows public buyers to weight quality at up to 70 percent of the award criteria. We encourage public buyers to use this headroom. Drone survey outputs vary enormously in quality between operators, and a 60/40 or 70/30 quality/price split consistently produces better outcomes than a lowest-price award.
GDPR, image handling, and public sites
Drone imagery on public-sector sites frequently captures incidental faces, number plates, private property, and sensitive infrastructure. Under GDPR, most of this is personal data the moment it is linked to an identifiable individual, and the controller (usually the commissioning authority) is responsible for ensuring it is handled lawfully.
Our standard public-sector workflow is:
- Data minimisation at capture: Plan flight lines to avoid unnecessary overflight of adjoining private property where possible.
- Blurring at processing: Automatically blur faces and number plates in orthomosaics and published deliverables. Raw imagery is retained unblurred for the agreed retention period.
- Retention schedule: Raw imagery deleted at 12 months unless the client has a specific need and legal basis for longer retention.
- Access control: Secure handover via authenticated download link, not email attachment.
- Data Processing Agreement: Where we act as a processor, we sign the client’s DPA at contract award.
For public-sector clients this is table stakes, and the procurement documents should reference GDPR compliance explicitly rather than assuming it.
National standards and CAD compatibility
Public-sector CAD deliverables in Ireland typically need to align with the client’s internal CAD standard. We most commonly encounter three:
TII (Transport Infrastructure Ireland) Standards: TII publishes a set of drawing standards for national road and rail projects covering layering, line types, text styles, and file naming. Our topographic outputs for TII-funded projects are delivered to this standard by default, including the layer names TII uses for roads, drainage, utilities, and vegetation.
OPW CAD Standard: The Office of Public Works uses its own layer standard for flood relief and heritage work. Deliverables for OPW schemes are issued conforming to this standard with DWG in AutoCAD 2018 format or earlier for maximum compatibility.
Irish Water CAD Standard: Irish Water (Uisce Éireann) projects have specific requirements for utility and asset labelling. We align our drawings to these conventions and include Irish Water’s standard title block on request.
The time cost of conforming to a CAD standard at source is negligible. The time cost of retrospectively converting a non-compliant deliverable is significant and avoidable.
Frequently Asked Questions
Are you registered as a supplier on eTenders?
Yes. Drone Services Ireland is a registered supplier on the Irish eTenders platform and is on the approved supplier lists of several framework agreements covering drone survey and aerial photography services.
Can you work as a subcontractor to an engineering consultancy on a public-sector project?
Yes. Most of our OPW and TII work is delivered as a specialist subcontract to the main consultant engineer, who remains the principal supplier to the client. We integrate with the main consultant’s QA and reporting workflows.
Do you hold an IAA Specific Category authorisation?
Yes. We hold the necessary Irish Aviation Authority Specific Category authorisations for the altitudes, airframes, and payloads we fly, including authorisations for operations near people and over controlled airspace where required.
How do you handle sensitive infrastructure capture?
Where a project involves capture of critical national infrastructure (water treatment, electricity distribution, Garda stations, military sites), we apply enhanced data-handling procedures including restricted file access, separate secure storage, and deletion on a schedule agreed with the commissioning body.
Can you provide a tender response template or specification advice before we publish?
Yes. We are happy to review draft specifications and suggest improvements before publication – this is non-committal pre-tender market engagement and is entirely normal under EU procurement rules. A 30-minute call with the commissioning officer usually catches the most common specification gaps.