Quality survey solutions and consultancy

About us

Paul Corrigan & Associates (PCA) Ltd. Geo-Surveyors is a multidisciplinary practice with 40 years’ experiences in all aspects of land and measured building survey. We pride ourselves on providing tailored survey solutions to all our clients, with an emphasis on continuous product support and detailed advice.

As one of Ireland’s leading Geo-Survey Consultancies, we aim at all times to achieve the highest standards in survey practice and customer service, embracing the very latest in survey technologies and methods.

Why not have a look at some of our work by visiting us on social media, or by dropping by our YouTube channel. You can find the links to all at the bottom of the page.

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Whatever your survey needs, PCA has the solution.

CONSULTANCY

Each project can have many possible survey solutions depending on the client’s requirements and budgets. Some clients prefer a survey to be built up in modular format, others may require more or less in terms of accuracies and extents.

SPECIFICATION

When considering a survey specification, think PCA: we are happy to advise. Every job has its own demands – its own unique set of requirements of accuracy, content and presentation.

MEDIATION

Disputes can arise at any time, and property boundaries and land use are key flashpoints. At PCA, we have the experience and expertise necessary to mediate disputes and enable all parties come to a rational, common-sense solution. We are Chartered Arbitrators and also offer an expert witness service for litigation and arbitration.

CURATION

In this constantly changing world, it is more and more important to keep accurate records of our natural and built environment. At PCA, we recognise that our clients’ needs often extend beyond traditional surveys.

Paul Corrigan & Associates Ltd. Geo-Surveyors

Our services

INFRASTRUCTURE

Metro Luas . Airport . Bus Corridors . Cycle Routes . Motorways . Railways . Traffic Calming . Bridges . Waterways

HERITAGE

Conservation . Archeological Sites . Historic Buildings & Protected Structures . Historic Architectural Details

PROPERTY & LEGAL

Development . Subdivision . Registration (PRAI) . Lease Area Calculation . Mediation . Arbitration . Boundary Dispute Resolution

environmental

Greenways . Flood Risk . Costal Erosion & Protection . Forestry . Parks . Golf Courses . Tourist / Walking Trail

modelling

Scan-to-BIM . 3D CAD . TIN . mesh and contour modelling . digital surface and orthofacade modelling and Gaussian Splat Modelling

DRONE SERVICE

Aerial Photographic/ Video Survey . Orthophotography . Photogrammetry . Flythroughs . Building inspections: Roof/Gutters Inspection

Services Mobile Mapping

MOBILE MAPPING

Topographic survey – Roads (Pavement condition survey) – Rails – Waterways – Coastal – Streetscapes – Elevation – Mapping Biomass – Accessibility Survey – Asset Management

Terrestrial & Photogrammetry

TERRESTRIAL & PHOTOGRAMMETRY

Architectural photography – Recording Historic Building – Conservation – Building Condition Survey – Internal & External Elevation – Orthomosaic – Photogrammetry – Rectified Photography

Archeological & GIS 2

ARCHaEOLOGICAL & GIS

Mapping for Excavation Survey – 3D Site Record – Landscapes – Spatial Data Base Management – Archaeological Prospection – Environmental Impact Assessment

Projects gallery

Meet the team

6G4A2686bwweb_Paul Corrigan_Founder & CEO PCA

Anna

MSc. Geodesy VSB – TU Ostrava Czech Republic.

Anna studied Geodesy & Cartography at VSB – TU Ostrava (Czechia), graduating in 2001. She joined the PCA team in 2004 as topographic & buildings surveyor, later becoming office manager. In her time with PCA, Anna has overseen some of PCA’s largest projects, and has personally worked on a number of high-profile developments, such as the Custom House, The Spencer Hotel, and even some celebrity residential projects. While transitioning into a lead management role at PCA, Anna has also achieved a number of qualifications in HR development, management and accounting, and manages company CPD. Anna is the first point of contact for PCA’s customers.

Patrick

Geomatics, TU Dublin.

Pat studied Geomatics at DIT (Bolton St.), graduating in 1994 and joined the PCA team in 1995. He has 25+ years’ experience in legal mapping and geomatics, and is PCA’s specialist on all surveys for legal matters, property registration, boundary clarification and area calculations for commercial records. Pat works with a range of client groups, including solicitors and other members of the legal profession, public agencies and land management bodies, down to private homeowners. Due to his many years’ experience, Pat has become the first port of call for many of our clients for advice on the best survey solutions for their projects.

Lorcan

MSc. In Geospatial Engineering, TU Dublin; –MA in Archaeology, UCD.

Lorcan has a background in cultural heritage, having worked on geophysical survey projects with UCD and The Discovery Programme. He joined PCA as a surveyor, having completed a second Masters in geospatial engineering, and now leads our Laser Scanning and Heritage & Conservation Survey Teams. Lorcan has been in charge of some of PCA’s landmark projects, including surveys of the National Library of Ireland, Skellig Michael and Trinity College Campanile.

Mick

PhD. in Geospatial and Environmental Archaeology, UCD.

Mick has 16+ years’ experience in the Cultural Heritage sector in both data acquisition, management and geospatial analysis. He holds a PhD. from UCD in historic land use and land cover modelling. Mick joined the PCA team as surveyor and Project Coordinator, and manages large-scale topographic, LiDAR and utilities survey projects. He has successfully managed a range of large-scale infrastructural survey projects, including the BusConnects, Liffey Quays Cycle Route, N24 Cahir to Limerick Junction and N4 Carrick to Dromod survey projects.

Mark

BSc. In Construction Management, Diploma in Digital Media Production.

Having gained significant survey experience in UK and Australia, Mark joined PCA in 2017 and led the Topographic and Transportation Section. Mark is a highly experienced field surveyor with experience, while at PCA, on some of the largest infrastructural projects carried out in Ireland in recent years, such as the Phoenix Park Tunnel, BusConnects, DART+ & Metro Green Line. Mark specialises in the establishment of control networks on-site, and has spearheaded a number of programmes in PCA aimed at increasing survey efficiency and developing new methodologies.

Vytautas

Vytautas Magnus University Agriculture Academy (Lithuania).

Vytautas joined PCA as a technician land surveyor in 2004. With more than 16 years’ experience, Vytautas has progressed to managing his own projects in Topographical Survey, SCC and Point Cloud Processing. Vytautas also manages PCA’s survey Quality Assurance programmes, and is delivers regular training programmes to new staff members. As one of PCA’s longest-serving team members, Vytautas is a key adviser to pricing and survey teams on appropriate survey methodologies and associated accuracies.

LAURA

Laura

BEng (Hons) in Surveyor Engineering, Universidad Tecnologica de Chile; BEng (Hons) In Project Management, DBS.

Laura is a Surveyor, Engineer and Project manager, she holds a BEng (Hons) in Surveying Engineering from Universidad Tecnologica de Chile (2015), and also has a BEng (Hons) in Project Management from Dublin Business School (2024). She has over of 5 years of experience in topographic surveys, cadastre, measured building survey and civil infrastructure. Laura joined PCA (2024) as a Geomatics Surveyor with special responsibility for data and project management, drafting and 3D modelling.

Tetiana

Tetiana

Geodesy and Land Management, V. Dokuchaev Kharkiv National Agrarian University of Ukraine

Tetiana joined PCA in 2022, continuing her already extensive experience in land survey, survey engineering and geodatabase management in both Ireland and Ukraine. She obtained her qualification in Geodesy and Land Management from the V. Dokuchaev Kharkiv National Agrarian University of Ukraine, specialising in land management and cadastre. She also has a degree in Philology. Tetiana is an experienced surveyor, with expertise in topographic survey, laser scanning, data processing and high-detail building survey. She is currently one of our lead laser scanning surveyors, and specialises in laser scanning and processing for both topographic and building surveys.

Nerijus

Technology of Photography, Vilnius College of Technology and Design (Lithuania).

Nerijus joined PCA as a technician in GNSS, Levelling and Topographic Surveys. With a substantial background and training in photography, Nerijus is our photographic specialist, with responsibility for architectural photography, photographic and photogrammetric surveys, orthorectification and 3D modelling. Nerijus is also a qualified UAS pilot, certified by the Irish Aviation Authority, and is an expert in aerial photogrammetry. He has worked on a number of high-profile projects as PCA’s drone and photographic specialist, such as Desmond Castle, Skellig Michael, Portumna Castle and the National Library of Ireland.

Nathalie

BEng (Hons.) in Civil Engineering, University Anhembi Morumbi; Advanced Cert. in Buildings Technician, ETE Carlos de Campos

Nathalie’s background is in Civil Engineering, with over 10 years’ experience in achieving high quality delivery in large scale residential and commercial projects as Design & Technical Engineer and Estimator. She joined PCA in 2021 as a CAD & Revit specialist, and has since become part of the project management team at PCA. With experience with both data capture on-site and processing/production in-office, Nathalie is a key member of the PCA Building Survey and Heritage & Conservation Survey Teams, with expertise in CAD-to-BIM workflows, 3D drafting and modelling.

Sam

BSc in Geographic Science, TU Dublin

Sam joined PCA through the Graduate Internship Programme and became a fill-time member of the team in 2020. Since then, he has assumed responsibility for the development and integration of new technologies and methodologies across the company. He has obtained his drone pilot licence and IAA certification, and now serves as Head of PCA’s Aerial Survey Team. Sam possesses extensive expertise in CAD and SCC drafting for topographic and Building Surveys, and provides technical guidance in laser scanning and the delivery of detailed measured building surveys.

Eoin

BSc in Geographic Science, TU Dublin.

Eoin joined PCA as part of the Graduate internship program while studying for a degree in Geographic Science TU Dublin, which he obtained in 2022. He has since become an integral part of the survey team and regularly manages survey projects from initial data capture, through processing and production of deliverables for the client. Eoin also has expertise in railway surveys and the use of 3D point data to produce deliverables. Eoin is also a member of the PCA aerial survey team and a qualified UAS pilot, certified by the Irish Aviation Authority.

ANTONINA

Antonina

PhD. in Engineering Sciences, National University Lviv Polytechnic

Antonina joined PCA in 2024. She holds a PhD in Engineering Sciences from National University Lviv Polytechnic, specialising in geodesy, photogrammetry and cartography. Antonina has more than 13 years’ experience as a lecturer. Currently her position is be a Geomatics Surveyor, with focus on control network planning & observation. She also has responsibility for capturing & processing data and drawing with point cloud data in SCC & AutoCAD. Antonina has developed and spearheaded PCA research programmes aimed at assessing the accuracy of different GNSS post-processing methods.

William

William

BSc in Geographic Science, TU Dublin.

William graduated from TU Dublin in 2022 with a BSc. in Geographic Science. William joined PCA in the same year, he has progressed from survey assistant to Senior Surveyor, accumulating three years of professional experience as a geomatics surveyor. William has consistently demonstrated strong technical capability, initiative, and leadership in the field, frequently managing and overseeing on-site survey operations. William is now a certified drone pilot with IAA certification, he leads on-site survey operations across Ireland and is highly skilled in client and third-party coordination. His technical, ability and professionalism make him a valuable member of the PCA team.

James Prince

James

HND Packaging Design at Sheffield Hallam University, UK

James brings 14 years of experience in oil, gas, and mineral exploration across Europe. In 2026, he joined PCA as a Land Surveyor, following previous roles with two leading surveying companies in Ireland and the UK. Over the course of his career, he has developed extensive expertise across all aspects of land surveying, combining strong technical capability with a broad understanding of industry practices. His experience and specialist knowledge provide valuable insight and support to the PCA team.

ANTO

Anto

BSc (Hons.) in Engineering Entrepreneurship, Dundalk Institute of Technology; Bachelor of Civil Engineering, St. Mary’s Polytechnic College, India

Anto holds a BSc (Hons) in Engineering Entrepreneurship (Level 8) from Dundalk Institute of Technology (2024), and Civil Engineering at St. Mary’s Polytechnic College, India (2020). He is experienced in Scan-to-BIM projects and developing 3D Building models with Revit and AutoCAD. Anto Joined PCA in 2024 as a CAD & Revit Technician, and has already worked on a number of large-scale laser scanning projects, including the Climate Action RePower Pathfinder Programme and the Adapt Schools programme.

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John

 

In 2026, John Joined PCA as a Land Surveyor and is developing his professional knowledge and surveying skills within the company. With no previous experience, john is gaining practical knowledge through hands-on training and working alongside the experienced PCA team. He is developing skills across a range of surveying activities, including field data collection, topographic surveys, measured building surveys and the use of surveying equipment and software. John has demonstrated a strong willingness to learn, a positive attitude and commitment to developing his technical abilities. His continued training and experience at PCA are providing him with a strong foundation for his career in Geospatial-Surveying.

Balazs

Balazs

BSc in Geographic Science, TU Dublin

Balazs has developed professional experience across geospatial and utility surveying. He has gained practical experience in 3D laser scanning, survey control, Ground Penetrating Radar, and GPS data collection. Balazs also has experience in GIS, including ArcGIS Pro and QGIS, as well as AutoCAD, Revit, photogrammetry and Cyclone (Processing scans/point clouds). He has developed strong skills in field data collection, equipment management, data organisation and on-site coordination. His combination of practical surveying experience and technical geospatial knowledge makes him a valuable addition to the PCA team.

 If you would like to join
our team, please contact PCA manager@pca.ie