Going out on your own
How to start a building code consulting practice in Ontario
Building code consultants and BCIN designers prepare the drawings and code analysis behind building permits — additions, renovations, change-of-use, and small buildings. Outside of architects and engineers (who are exempt), you need a BCIN and the Building Code exams to do it as a business.
Building Code Consultant at a glance
- Credential
- BCIN required to prepare building permit documents (qualified designer)
- Path in
- Get a BCIN → pass the MMAH design-category exams → register your firm
- Regulated by
- Ministry of Municipal Affairs and Housing (MMAH)
- Insurance baseline
- Professional liability (E&O) — required to register a design firm
- Professional body
- MMAH (QuARTS); Building Code Act
You must be licensed first. A practice can only offer building code consultant services to the public once it holds the regulator’s firm authorization, which requires a licensed principal and professional liability insurance. Sort the firm authorization before you take work.
The steps to start your practice
- 1
Register your BCIN design firm
To offer design services to the public, the firm registers under the Building Code Act with a designated QuARTS account manager and proof of insurance, renewed each year. This is the step that turns a qualified designer into a registered design business.
BCIN registration — ontario.ca ↗ - 2
Incorporate (or form a professional corporation)
Most professionals incorporate to limit liability and for tax efficiency. Several regulated professions (architects, engineers) can form a professional corporation with a Certificate of Authorization — confirm the right entity type with your regulator before filing.
Full guide: Incorporation - 3
Set up your CRA accounts
Register for a Business Number, HST/GST (mandatory above $30,000 in revenue), payroll if you will hire, and corporate income tax. Professional service fees are HST-taxable.
Full guide: CRA Registration - 4
Carry professional liability (E&O) insurance
Errors & omissions insurance is the core coverage for a professional practice — and a firm-authorization condition for regulated professions. It protects against claims arising from your professional advice, designs, or certifications.
Full guide: Insurance - 5
Stand up your practice operations
Business banking, professional accounting, engagement letters and contracts, and the project and document workflows a practice runs on. This is the back office that keeps you paid and protected.
Full guide: Operational Setup
Your launch checklist
The whole page in one list.
- Register your BCIN design firm
- Incorporate (or form a professional corporation)
- Set up your CRA accounts
- Carry professional liability (E&O) insurance
- Stand up your practice operations
Turn authorization into a working practice
Once the firm can practise, the next work is commercial: define the fee, prepare a credible proposal, and put a repeatable operating rhythm behind the professional work.
Put the guide to work
Use the setup on a real opportunity.
A business or practice becomes real when it can follow a lead, prepare a pursuit, and carry commercial work forward.