Multiplex Conversions & New Multi-Unit Homes
We offer full design and permit support for converting single-family homes into duplexes,
triplexes, or fourplexes — or for building new multiplex residential structures. These projects
are increasingly common across Ontario due to zoning updates, but they require strict
compliance with fire separations, building systems, exits, and occupancy codes. We manage every layer — zoning, planning, design, and engineering — to help you build legal and efficient multi-unit properties.
• Zoning review and property feasibility analysis
• Strategic planning for layout and unit configuration
• Full architectural and structural design (including additions or extensions if needed)
• Fire separation planning and code compliance review
• HVAC, plumbing, and electrical coordination for all units
• Complete permit drawings and submission package
• Support with planning approvals or minor variances (if applicable)
• Ongoing communication with city staff throughout review process
Why choose us
We understand how to maximize space, meet code, and simplify approvals. Whether you're a homeowner or investor, we’ll help you add units legally — and make the process clear, efficient,
and reliable.