What Do the Letters After Your Architect's Name Mean?

Architects at a construction site


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Architects, engineers, builders, and home designers often have a string of letters after their names. Letters like AIA or RA can seem impressive, but what do the letters stand for and do you pronounce them like words? Generally, these initials fall into three categories:

Membership in an Organization

In many cases, the letters are acronyms for professional associations. The letters AIA, for example, stand for the American Institute of Architects, the organization that helped architecture become a licensed profession in the United States. AIA members may use a variety of designations. AIA suggests that this person is a licensed architect who has paid hundreds of dollars to become a member; FAIA is an honorary title given to a select group of AIA members. An Assoc. AIA is an associate member who has been trained as an architect but does not hold a license, and Int'l Assoc. AIA include architects licensed outside the US.

Other organizations for professional architects include the Association of Licensed Architects (ALA) and the Society of American Registered Architects (SARA).

Architects may join a professional organization for networking, support, guidance, and professional growth. Often a professional organization will act as a lobbying arm to defend the interests of the group. Also, membership in an organization suggests that the architect has agreed to uphold professional standards and a code of ethics.

However, a licensed architect who does not belong to an organization such as the AIA may still be well-trained, highly experienced, and ethical. Membership dues are expensive, and some architects opt not to join. Sometimes only the principals of a firm become members.


Many architects also teach so you may see academic degrees after their names. For example, Spanish architect Santiago Calatrava earned a doctorate, which entitles him to put "Ph.D." after his name. Pritzker Laureate Zaha Hadid put "AA Dipl "next to her name, which means she earned an Architectural Association Diploma from the prestigious AA School of Architecture in the United Kingdom. The additional letters "Hon" mean the degree is not "earned" through coursework, but is an "honorary" degree given by the institution in recognition of the person's success.


Sometimes the letters after a professional's name indicate that the pro has passed exams or met other important requirements for licensing certification, or accreditation. An RA, for example, is a Registered Architect. A Registered Architect has completed an internship and passed a rigorous series of examinations offered by official architectural registration boards in the United States and Canada. Members of AIA and ALA are usually RAs, but not all RAs are members of the AIA or ALA.

Confused? Our glossary has definitions for some of the most common acronyms, initials, and abbreviations used by architects, designers, engineers, and other building professionals. Before you hire a building professional, check out this helpful list.

Glossary of Letters You Need to Know

Do you pronounce these letters like words? For this profession, the answer is usually no. Acronyms, by definition, are pronounced as words (for example, "computerized axial tomography scans" are often called "CAT scans"), but initialisms are pronounced as individual letters (for example, we say CD for "compact disc").


London, England's Architectural Association School of Architecture. An added "Dipl" means a diploma from the school. A non-graduate can also be a member.


Member of the American Institute of Architects, a professional organization. Also, see FAIA.


Member of the Association of Licensed Architects


An Accredited Learning Environment Planner is a credentialed professional in the educational facilities industry.


Architects Registration Board, the United Kingdom's regulatory organization, established by Parliament in 1997


Member of the American Society of Heating, Refrigerating, and Air Conditioning Engineers


Member of the American Society of Interior Designers


Member of the American Society for Industrial Security


Member of the American Society of Landscape Architects


Member of the American Society of Plumbing Engineers


Bund Deutscher Architekten, an association of German architects


Certified Building Official. A CBO is a municipal building code enforcement official who has passed certification exams. Some parts of the United States require that code enforcement officials hold CBO certification.


Certified Construction Contract Administrator. To be certified, the construction professional must have passed CSI (Construction Specification Institute) tests to demonstrate ability in administering all phases of construction contracts.


Certified Construction Manager. This person has education and work experience that meets the criteria of the Construction Manager Association of America.


Certified Construction Specifier. To be certified, the construction professional must pass examinations offered by the Construction Specification Institute (CSI).


Certified in Plumbing Engineering


Certified Professional Building Designer. Professional building designers, also known as home designers, specialize in designing single-family homes, light-frame buildings, and decorative facades. The CPBD title means that the designer has completed training courses, practiced building design for at least six years, and passed a rigorous certification exam. A CPBD is not necessarily a licensed architect. However, a CPBD is usually qualified to design an uncomplicated, traditional home.


Member of the Construction Specification Institute


Engineer in Training. Graduates of engineering programs who have passed licensing exams but do not yet have the required four years experience to be a licensed Professional Engineer. In New York, EITs are commonly called Intern Engineers." In Florida, they are called Engineer Interns.


Fellow of the American Institute of Architects. This is a highly regarded honorary title granted to only a small percentage of AIA member architects.


Member of the International Association of Lighting Designers


Member of the International Interior Design Association


Leadership in Energy and Environment Design. This title indicates that a project or a design professional meets standards established by members of the US Green Building Council. Accredited LEED architects have passed examinations that demonstrate their understanding of green building practices (environmentally friendly) and concepts.


Certified by the National Council of Architectural Registration Boards. To be certified, a registered architect must meet rigorous standards for education, training, testing, and ethics. Not all licensed architects are NCARB certified. This is one of the few acronyms in the profession—pronounced en-karb.


Member of the National Council of Engineering Examiners


National Council for Interior Design Qualification


Member of the National Fire Protection Association


Member of the National Society of Professional Engineers


Professional Engineer. This engineer has completed the training, exams, and fieldwork required to be fully licensed. PE certification is required for any engineer in the United States who works on projects that will affect the public.


Professional Services. Some states, such as Washington State, allow licensed professionals to organize their businesses as professional service corporations.


Registered Architect. This architect has completed an internship and passed the Architect Registration Examinations (ARE). These challenging exams are offered by the National Council of Architectural Registration Boards (NCARB) and are generally necessary for architectural licensing in the United States and Canada.


Recognized Educational Facility Planner, a professional credential of the Council of Educational Facility Planners International (CEFPI). This designation was replaced with the Certified Educational Facility Planner (CEFP), which was replaced with the Accredited Learning Environment Planner (ALEP) designation.


Member of the Royal Institute of British Architects, a professional organization in Great Britain, similar to the AIA.