Breaking Down the Myths: Common Misconceptions About BCIN Designers

When it comes to residential construction and renovation projects in Ontario, you’ve probably heard the term BCIN, which is short for Building Code Identification Number. Professionals with a BCIN are qualified and registered with the Ontario Ministry of Municipal Affairs and Housing to prepare and submit design and permit drawings that comply with the Ontario Building Code.

Despite their essential role in the construction process, BCIN designers are often misunderstood. Let’s break down the common misconceptions of this profession, because understanding what they actually do can help you make more efficient decisions for your next project.

Myth #1: BCIN Designers Are Just Drafters

While BCIN designers do create technical drawings, they’re much more than just drafters. They are trained and certified to understand building code compliance and construction standards, and most have additional training for things like zoning regulations and design principals. They work closely with clients, builders, municipalities, and other consultants to ensure that every part of the design meets legal and structural requirements. A BCIN designer’s job is about more than putting lines on a page, it’s about turning ideas into code-compliant, buildable plans.

Myth #2: You Need an Architect for Every Project

Architects are highly trained professionals, but they’re not required for all residential projects. In fact, many home renovations, additions, and new builds fall squarely within the scope of BCIN-qualified designers. Hiring a BCIN designer can be a more cost-effective and efficient choice—especially for straightforward residential work that doesn’t require an Architect’s review or fees greater than your budget may allow for smaller residential projects. They’re fully qualified to submit permit drawings and are often more accessible for homeowners and small-scale developers.

Myth #3: BCIN Designers Only Work on Small Residential Projects

BCIN designers work on a wide range of residential projects, including additions, renovations, secondary suites, and even full custom homes.  Depending on the exams written, designers can also do small commercial projects, and small buildings like multiplexes. Their scope is defined by their level of qualification and area of practice, but don’t assume their skills are limited to minor work. Many are experienced in complex layouts, creative problem-solving, and navigating tricky zoning challenges.

Myth #4: They Don’t Understand Design Aesthetics

While BCIN designers are first and foremost technical professionals, many have a strong sense of spatial design, functionality, and visual appeal. Most, like those in our office, have training in the architectural field.  They collaborate with builders and homeowners to create spaces that not only meet code but also feel right. Good BCIN designers blend structure with style—especially when you find one with a well-rounded background in both design and construction.


Understanding the value of a BCIN designer can save you time and money. They’re certified to navigate Ontario’s building regulations, skilled in translating your ideas into approved permit drawings, and often bring years of hands-on design experience to the table. Before assuming you need an Architect, or before you dismiss a BCIN designer as “just a drafter,” consider the scope of your project and the expertise required. 

At House of Three, we bring together BCIN-certified expertise and thoughtful design solutions to help homeowners and developers bring their visions to life. Contact House of Three today to learn how our team can support your next build, addition, or renovation.