Fergal O’Mahony - Property developer
Innovative and Driven
Fergal O’Mahony has always been a person with seemingly endless drive and enthusiasm for everything he gets involved in. From identifying property development opportunities to building quality homes, hotels and commercial units, there is a tangible focus at play and this is what makes him stand out from the crowded world of property development in Ireland today.
Fergal has been at the forefront of the residential property sector for over 20 years and it’s not by chance – “When putting a scheme forward for consideration, the first thing that I plan is how the residents will actually live their every day lives in the area. Once the residents’ profile is established, I quickly turn my attention to the services, facilities, and amenities that will be needed. For me, those considerations are number one, and only then, can the actual detail of the property be planned. It has to be that way,” said Fergal.
In a country where the housing crisis has hit yet another dreadful low, we need people who can stand up and deliver time and time again. Fergal O’Mahony is CEO of Highgate Properties but also runs Aspect Design to Finish which might hold some of the answers as in 2019 they finished on average three houses per week.
Highgate also partners with some of the largest and most progressive property companies in the UK and Ireland.
Georgina O'Mahony - Business Analyst
Financially Focused & Meticulous
A long family legacy in construction and property management combined with an astute financial focus makes Georgina O’Mahony the driving force behind the profitability of many of Highgate’s large projects. Georgina’s project management skills and business acumen ensure that current projects run smoothly.
Highgate prides itself on excellent planning and this is where Georgina thrives, identifying at feasibility stage, which projects are good investments and which require further due diligence.
‘Identifying projects using a calculated risk assessment process is essential to provide stability and future growth. Economic and environmental factors are the starting point but social and community needs are always very much our priority. This ethos ensures that we deliver residential and commercial developments that suit the needs of the whole community, while satisfying the demands of the commercial opportunity.’
Georgina O’Mahony
AJ Deane
Director of Quality & Compliance
AJ has more than thirty years’ experience in construction, civil engineering and property development across the UK, Ireland and mainland Europe. He holds a degree in Construction Management and a Postgraduate Diploma in Project Management, with experience spanning the full development lifecycle from feasibility and design through construction, completion and handover.
As Group Director of Quality & Compliance, AJ brings a practical, delivery-focused approach to maintaining standards across projects and the wider business. His experience in planning, procurement, commercial management and construction gives him a strong understanding of how quality, compliance and buildability support successful outcomes.
AJ oversees quality and compliance across design, construction, certification and handover, ensuring technical standards, specifications and statutory obligations are addressed throughout. He works closely with consultants, contractors, clients and local authorities to resolve issues, strengthen assurance, maintain compliance and support efficient completion and sign-off.
David Heaney
Group Commercial Director
David has nearly 30 years of experience in the Irish and UK construction industries, spanning both quantity surveying and project management.
David holds a Bachelor of Science in Construction Economics and Management and a Diploma in Project Management from the University of Limerick.
Prior to joining the Highgate team in 2008, David worked for Michael McNamara Construction Ltd and Laing O’Rourke and gained vast construction experience and knowledge in the residential, commercial and medical sectors.
David is responsible for overseeing the day-to-day commercial operations of the business. He is also responsible for the cost management, supply chain management, and risk management across the company’s projects.
Paul Madden
Project Manager
Paul Madden joined Highgate in 2016, bringing a strong practical background in construction. He began his career as a carpenter and joiner before qualifying as a Site Manager, giving him a well-rounded understanding of both site delivery and technical requirements.
In 2020, Paul was appointed Project Manager and now oversees the delivery of multiple projects from construction through to completion. He works closely with project teams to maintain programme, quality and performance, ensuring each development is delivered to Highgate’s exacting standards.
Bill Staunton
Project Manager
Bill brings extensive hands-on construction experience to his role as Project Manager, having started his career in carpentry before progressing through site management and foreman roles.
His background includes the delivery and restoration of conservation-sensitive buildings, giving him a strong understanding of the care, coordination and attention to detail required on complex projects. As Project Manager, Bill oversees day-to-day delivery on site, working closely with consultants, subcontractors and project teams to maintain quality, programme and construction standards throughout.
Svajunas Liuberskis
Project Manager
Sol has over 20 years’ experience in the Irish and UK construction industries. He joined Highgate as a carpenter in 2014 and, through continued development, practical experience and strong performance, progressed through increasingly senior roles to become Project Manager. His career advancement reflects a strong understanding of construction delivery, developed through hands-on site experience and leadership responsibility.
To support his progression, Sol completed a Diploma in Project Management at University College Dublin in 2020. He now combines his trade background with formal management training, bringing a practical and well-rounded approach to project delivery.
Sol works closely with clients, consultants and subcontractors, providing clear direction to teams, coordinating priorities and addressing challenges as they arise. His practical approach and attention to detail help ensure projects are delivered safely, efficiently, on programme and within budget.
Mindigaus Cizauskas
Project Manager
Mindy has almost 25 years’ experience in the Irish and Lithuanian construction industries, combining a strong trade background with qualifications in construction management. He holds a Bachelor of Science in Construction Management from Vilnius Gediminas Technical University and joined Highgate in 2018.
As Project Manager, Mindy brings practical site knowledge and a hands-on understanding of construction delivery, managing projects from initial site setup through to handover. He works closely with clients, site teams, subcontractors and consultants to coordinate works, resolve challenges and maintain clear communication throughout the project lifecycle. His trade experience, practical approach and attention to detail help ensure quality standards are maintained, risks are addressed early and projects are delivered safely, efficiently, on programme and in line with client expectations.
Cathal Doyle
Contracts Manager
Cathal joined Highgate in 2021 after completing a Bachelor of Science in Quantity Surveying & Construction Economics at Technological University Dublin. Since then, he has successfully managed a range of large-scale high- and low-density residential projects across Dublin and the surrounding regions.
As Contracts Manager, Cathal brings strong commercial and contractual expertise across the full project lifecycle. He manages agreements from negotiation through to completion, ensuring contractual obligations, commercial risks and delivery requirements are clearly understood and effectively controlled. Working closely with clients, suppliers, project teams and senior management, Cathal helps maintain commercial discipline, resolve issues and protect project outcomes. His practical approach, attention to detail and understanding of construction delivery support successful projects from appointment through to final account.
Gary Moran
Project Manager
Gary is a qualified Civil Engineer with extensive experience in the delivery and management of residential construction projects. He holds a Master’s Degree in Civil Engineering, graduating with First Class Honours from the University of Galway.
As Project Manager, Gary combines strong technical knowledge with practical site and project management experience. He coordinates projects from design development through construction and completion, working closely with clients, consultants, subcontractors and site management teams.
Gary leads design and progress meetings, manages subcontractor performance and resolves technical and construction issues to maintain programme, quality and project requirements. He also plays a key role in coordinating BCAR documentation, certification and completion with Assigned Certifiers. His organised and collaborative approach supports the safe, efficient and high-quality delivery of projects from commencement through to handover.
Sheila O'Connor
Office Manager
Sheila brings more than 20 years of extensive front-of-house management, operations, administration, and team leadership experience to her role. As Office Manager, she plays a central role in the smooth running of the business, working closely with the Directors, Project Managers, and the wider team. Combining exceptional organisational skills with a professional, approachable manner, Sheila is an integral part of the team who ensures the business operates at peak efficiency.
Before joining the Highgate Group, Sheila built an impressive career in operations and administration. Her background includes senior front-of-house and operational roles with News Corp’s London headquarters. During her tenure with News UK, she successfully managed front-of-house operations across two major London sites, leading a team of approximately 30 staff while overseeing a broad range of operational, financial, HR, and client-facing responsibilities.
Committed to continuous professional development, Sheila is currently advancing her expertise with further qualifications in Human Resource Management.
Barbara Loughnane
Financial Accountant
Barbara brings more than 25 years of extensive financial experience to the organisation. In her role as Financial Accountant, she is responsible for the day-to-day financial operations and reporting for the entire Highgate Group of companies. She takes a hands-on approach to managing payroll, accounts payable, accounts receivable, and all core compliance and reporting requirements.
Known for her sharp eye for detail, Barbara takes great pride in maintaining the highest professional standards. Her deep industry knowledge, wealth of experience, and methodical approach make her a highly trusted member of the senior team. She collaborates closely with directors and project managers to ensure the financial operations of the business run seamlessly.
Prior to joining the Highgate Group, Barbara successfully managed similar comprehensive financial operations within the industry.
She holds a Bachelor of Commerce (B.Comm) from University of Galway and is a fully qualified ACCA accountant.
Joanna Walkowiak
Finance Administrator
Joanna is an experienced administrator with a strong career history in finance and administration across both Poland and Ireland. Known for her strong work ethic and practical, organised approach, she brings valuable expertise to the Highgate Group.
In her current role, Joanna supports the finance team across a range of day-to-day duties. She works closely with on-site colleagues to ensure all monthly invoices are received, reconciled, and processed efficiently. Characterised by her reliability and meticulous attention to detail, she maintains a calm, friendly, and collaborative approach to her work.
Prior to joining the Highgate Group, Joanna gained extensive accounting experience within the construction and engineering sectors.
She holds a Master’s degree in Law and Administration from Mikołaj Kopernik University and continuously updates her skills through specialised finance courses.
