Residential & Commercial Architects Dublin
design-led architecture
Creating spaces shaped by clients, context, culture and community
2026
The Practice
Dublin based.
Internationally recognised.
Brennan Furlong is an award-winning, RIAI‑registered practice based in Clontarf, Dublin. Our work responds to landscape, culture and memory — creating spaces that foster belonging, honour the stories of those who came before, and aspire toward a more sustainable future.
With years of experience across Dublin and Ireland, we combine creativity and technical expertise. Whether designing contemporary private dwellings, rejuvenating period structures or delivering community-oriented projects, our focus remains the same: crafting beautiful sustainable spaces that respond to the character of the site and the needs of our client.
Tours, Events and Exhibitions
Upcoming Events
Apr
13
Our Work
Selected Projects
Our portfolio highlights a diverse range of work across Dublin and Ireland. With examples of sensitive period restorations in Clontarf and Monkstown, contemporary new builds in Howth and Wicklow, and refurbishment / extensions in Malahide and Sutton, each project represents a unique response to site, brief and budget.
As Featured in
What We Do
Tailored Architectural Services
We provide a comprehensive architectural service to guide you through every stage of your project. Whether you need an initial feasibility study to unlock a site’s potential, or full management of a complex conservation project, we can tailor our approach to your specific requirements.
Bespoke Homes
Contemporary New Builds
Building a home from scratch is the ultimate design opportunity. We work closely with you to assess site potential and navigate the complexities of planning permission, whether that be in Dublin, Fingal, Wicklow, or beyond. From feasibility studies to the final build, we deliver one-off houses that are tailored to your lifestyle and rigorously detailed for longevity.
Commercial ArchitectS
Commercial Developments
Beyond the home we deliver commercially focussed design solutions for residential developments, sporting infrastructure, educational establishments, health-care facilities, office and retail spaces and the hospitality sector.
Period Homes | Protected Structures
Conservation & Heritage
We have extensive experience working with Protected Structures. Our Grade III conservation expertise allows us to breathe new life into historic buildings while navigating complex planning permissions across Dublin City, Fingal, Dun Laoghaire Rathdown, South Dublin and beyond.
Whole House Upgrades
Renovation & Retrofit
We view evaluating and improving energy performance as being integral to the design process. Our holistic approach combines sensitive architectural renovation with technical deep retrofit measures. By upgrading their thermal performance and energy efficiency, we retain the character of cold, older properties, while transforming them into comfortable modern homes.
Reimagining Space
House Extensions
You don’t always need more space; often, you just need better space. We specialise in transformative house extensions and internal remodelling that unlock the potential of your existing home. By improving layout, spatial flow, and connection to the garden, we create light-filled open-plan living areas that adapt to family life.
Testimonials
Client Feedback
St. Fintans Client
Home Owner
” Ours was not the most straightforward of projects, a 200-year-old terraced house that had been a wonderful home to generations but now needed major surgery. We were downsizing but still wanted to welcome family and friends to stay, to entertain, to have all the mod cons and at the same time respect and reflect the history of the house. We briefed Brennan Furlong and what they came back to us with was exceptional with a truly original vision of what our new home could look like. With very few alterations we agreed the plans and with their help we identified excellent builders and the development began. Eleven months later we moved into our beautiful new home, the experience working with Brennan Furlong from day one was first class, what we had been warned might be a fraught process turned out to be very smooth thanks in no small part to having Brennan Furlong as our architects. “
Dermot Bannon - RTE
Room to Improve, 2026
” You’d often see houses like this in magazines, but it’s not often you get to be in them. And the feel in here is just amazing. I think I described it; there’s no other word; it is just pure magic. “
Aoife Donnelly
Home Owner | Seafield, Clontarf
” We engaged Brennan Furlong to transform our 100 year old home in Clontarf. Our architect from the start knew that we needed to balance new and old, within a budget, and guide us to a family home that was ambitious for us while meeting our needs. The path to a new home is not without it’s ups and downs, and Brennan Furlong helped us navigate the design and build, and are still there to support us when needed long after we moved in. We would have no hesitation in recommending Brennan Furlong after our experience. “
Serpentine - Client
Home Owner
” Brennan Furlong designed our amazing family home for us. The house is North facing but they managed to get so much light into the house that we barely turn on the lights in the summer. They also designed the house with a family in mind and ensured it works for a family with kids. We have had many friends and strangers ask who designed our house and we have been happy to recommend Brennan Furlong to them. They are a pleasure to work with, listen to what you want from the build and include all of this with clever design. We had a great experience with the team from Brennan Furlong and would recommend them to anyone looking to build or extend. “
Grangecon - Client
Home Owner
” We are beyond thrilled with the house Brennan Furlong created for our family. Any build can be daunting with its trials and tribulations, but they were always there to guide us throughout the project and made sure we were happy with the end result. Over the course of the build, we dealt with three different team members from initial concepts through the management of the building process itself with each of them bringing their own ideas to the table and we incorporated ideas from all of them which goes to show the level and variety of talent the firm has to offer. I would happily recommend Brennan Furlong to anyone who wants to build a modern, beautiful home. “
Niall Doran
Lerrig Lodge – Client
” We would highly recommend the team at Brennan Furlong. We worked with them on a design to completely refurb and extend our family home. For anyone that has done this before, they know it is not a simple process, however, the journey was helped by their advice, patience and steadfastness to achieve the requested end product. “