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At O'Callaghan Construction, we believe building or transforming a home should be a positive, straightforward experience. We're a Cork-based family business built on trust, quality workmanship, and a genuine passion for helping people create spaces they love.
Founded by Dave O'Callaghan, the company quickly earned a reputation for reliability, integrity, and top-notch craftsmanship across Cork City and County. Dave's name became known not just for the homes he helped build, but for the honest, hands-on way he did it.
Today, O'Callaghan Construction continues that legacy under the leadership of Ken and Mark O'Callaghan, Dave's sons. With the same dedication to doing things right and a fresh, forward-thinking approach, they're proud to carry the family name into the next generation of building.
Ken manages the behind-the-scenes side of every project, working closely with quantity surveyors, architects, engineers, and clients to ensure everything is ready before building begins. Raised on-site alongside his father Dave, Ken originally trained as a solicitor before returning to his true passion - building homes with precision, care, and a hands-on approach to project management.
Mark leads the hands-on side of every project, managing construction on-site from the moment work begins. Growing up learning the trade with his father Dave, Mark later honed his skills in plumbing and carpentry while working in Australia before returning home. Today, he brings practical expertise, craftsmanship, and a dedication to building homes that stand the test of time.
You work with your architect/engineer for the design and planning (Do I need an architect?). Then we take over - handling all construction, trades, and project management right through to handing you the keys.
We're proud to be known as an approachable, friendly construction team in Cork who take pride in our work and respect every home we step into. Whether you're planning your forever home or re-working your current space, we'll be right there with you to supply honest, expert building advice and a job done properly.
A complex, high-performance passive house build in Crosshaven, delivering a dream home that generates more energy than it uses.
Thinking about building, extending, or renovating your home in Cork? We know there can be a lot of questions - from planning permission and pricing, to what we manage for you. Below, you'll find answers to the most common questions homeowners ask before starting a project. Get in touch no matter what stage you're at - we're here to help you every step of the way.