O1A was founded in 1986 by Omiros Emmanouilides. The practice has grown to become an International company with bases in Melbourne, Abu Dhabi and Delhi. O1A also collaborates with various associate offices in the Asia-Pacific region & Europe.

O1A is a design-orientated practice, providing a unique combination of award winning design skills and an accurate commercial awareness.
O1A is committed to producing innovative, contemporary, efficient and sustainable projects of distinction that meet and exceed the needs of both developers and end users.

The firm is noted for and experienced at exploring potentially complicated and difficult projects in a manner that provides the client with the best possible result for their project. O1A focuses on helping developers achieve their commercial outcomes by concentrating attention on achieving greater efficiency and improved yield. Whilst upholding to an aesthetic of integrity and uniqueness.

O1A offers expertise in a variety of disciplines, including; architecture, planning, urban design, structural and MEP Engineering services, interior design, landscape design, construction management and supervision.