She has also been registered in the Register for Architects under the Building Control Act 2007 and may legally use the title Architect and she is an Architect Accredited in Conservation Grade III and a Member of Integrated Project Management (IPM). She spent a year working in San Francisco, specialising in housing design, construction and interiors and she was a founding member of the Bay Area Young Architects (BAYA). She spent a further year working on the detailing and construction of the 5 Star Hotel Arts, working on site in the Olympic Village of Barcelona, after the Olympics but before the Olympic Village area was completed. In Dublin, Una worked for BDP, intensively on the Connolly Station refurbishment project, the competition-winning offices for Fingal Co. Council along with Bucholz McEvoy Architects, the extension to Marks & Spencer Mary Street, the refurbishment of AIB Bank Terenure amongst many other prestigious schemes.
Prior to starting her own practice, Una then worked exclusively with Anthony Cotter Architects on the new-build of the large Air-Rights Office Building over Connolly Station. Una worked single-handedly with Tony on the entire project from start to finish, including the fit-out of the offices for McKeever Rowan Solicitors and Susquehanna Ireland Ltd.; the entire second floor of the building. McQuillan Architects was set up as a limited Company in 2001 to meld the disciplines of art and business in a way to also create beautiful environments for people.
Since then, Una’s expertise has made her a natural commentator and media presenter. To date she has worked on the series ‘About the House’, for Ireland’s national television station, RTE 1, where she was the co-presenter. Una also regularly appears in the Irish press as an expert on interiors, architecture and the industry.