Welcome To Cullinane Steele Architects

We are an Architectural Practice based in Letterkenny, Co. Donegal and have a wealth of experience in all aspects of the construction industry. We specialise in New House Design – House Plans / House Extensions and Renovations. Given the current economic environment, it is essential that you protect any investment you make in your home.

It is therefore important to seek the correct advice from qualified competent Professionals. Cullinane Steele Architects delivers a professional service at competitive rates. Call us now regarding any project you may have for a NO obligation consultation, regardless of size or budget.

Main Areas of Expertise

  • Design and Planning Applications etc
  • Bespoke One Off House Design
  • House Extensions and Renovations
  • Contemporary / Low Energy House Design
  • Building Energy Rating Advice- Surveying
  • Inspection of Construction Including Building Control (Amendment) Regulations
  • Mapping


  • “A professional and friendly service. We got a structural survey done and we're not only pleased with the survey but also the fact that they took the time to run through the survey with us and not only explain the details of the report but offered advice on things we could do to improve the property also.”

    Ciaran O’Mahony
  • "Have heard nothing but good reports about Bill and his team at Cullinane Steele, and having seen him present a number of times his passion for his profession is clear for all to see. Anyone thinking of building, extending or renovating, we highly recommend talking to Cullinane Steele first."

    MLMG Accountants
  • “Bill and his team at Cullinane Steele Architects are extremely knowledgeable & professional in their work on every level and a pleasure to work with. Whether you are doing a new build, a renovation, or just need a survey, this is the place to go. I love the fact that Bill can incorporate the modern look/feel into any type of building. Give them a shout if you are needing any of these services.”

    Heather Peoples
  • “All good, Professional, efficient and good correspondence.”

    Tom Lowry
  • “Professional service”

    William O’Donnell
  • “We have been referring our customers to these guys for a few years now and all the reports coming back have always been excellent. Professional, knowledgeable and nice guys. If you are building, renovation or just need a structural survey these are the guys to call.”

    Pascal Curran
  • “Bill is a pleasure to work with, we could not recommend him highly enough for his attention to detail and back up service”

    Galbraith Construction
  • “Bill Steele is an absolute gentleman and a pleasure to work with. His knowledge and expertise are second to none. I have no hesitation recommending Cullinane Steele Architects, a first class service.”

    Shaun Hamilton
  • “Bill and Peter experience and expert advice have safely guided me through the complicated planning process and they were a delight to deal with.”

  • “Bill Steele supported us with superb and profound service in a planning search and boundaries check whilst we were in the purchasing process of a property in Donegal. We really can recommend Bill Steele and his work to anybody with no doubts. Thx. Bill for your work.”

    Juergen Rohe
  • "Bill Steele has a brilliant way of listening to what you want, translating in in to what you can have and delivering what makes sense without cutting corners. He really gets modern architecture and understands what you envision, so he produces the goods at the first or second iteration. In our case iteration one was perfect for both of us, which is no easy feat. Because we have used Cullinane Steele we can highly recommend Bill & Co."

    Michael MacGinty MeanIt Web Design Agency
  • I have worked with Bill on a number of projects and find him to be one of the most skilled architects I have worked with. His designs are fantastic and he always delivers for the Client

    Darren Donaghy Donaghy Safety Providers
Contact Us

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