Suite Numbering Requirements — Ontario Building Code
Regulation O.Reg 332/12 s.3.8.3 · Province of Ontario
§The Law
O.Reg 332/12 s.3.8.3 — Regulation O.Reg 332/12 s.3.8.3
“The Ontario Building Code requires suites and units in multi-unit buildings to be identified with numbers or letters that are visible and legible from the corridor.”
View official regulation text✓Plain English
Every apartment, condo, or office suite may need a visible number on its door. The OBC specifies where the number goes and that it should be legible.
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Specific Requirements
Number or letter on suite entrance
Visible from corridor
AODA source-checked if tactile requirements apply
Consistent numbering throughout building
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📚Sources & Authority
Every claim on this page is backed by official government legislation and verified industry sources. Last verified: March 2026.
🏛 Official Government Sources
Ontario Building Code — O. Reg. 332/12
Ontario.ca · March 2026
The Ontario Building Code covers room identification, exit signage, accessibility markers, and building identification requirements.
Ontario Occupational Health and Safety Act
Ontario.ca · March 2026
OHSA requires workplace safety signs including emergency assembly points, confined space warnings, and hazard identification.
All sources are official government publications or recognized industry authorities. Links verified March 2026. If you find a broken link, let us know.
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Shop Property SignsOr call (289) 228-7021Regulation Quick Facts
- Regulation
- O.Reg 332/12 s.3.8.3
- Jurisdiction
- 🏛 Province of Ontario
- Category
- Property & Building Code
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