Byrne Wallace is one of Irelands largest law firms with over 300 employees.  In June 2010, the company relocated to their new 100,000sq.ft headquarters at Grand Canal Square, Dublin's premier new commercial and cultural precinct.

Marshall Day Acoustics provided full consultancy services for the new office fitout including sound insulation design and commissioning.  The modern commercial accommodation features an energy efficient chilled beam ventilation scheme.  To ensure the necessary privacy ratings were achieved throughout the scheme, a state-of-the-art sound masking system was specified in conjunction with appropriate partition sound insulation ratings.