Multi-Unit Conversions

Transform single-family homes into income-producing duplexes and triplexes

Suitable for homeowners, investors, and small-scale developers

Create Income & Housing With Legal Conversions

Multi-unit conversions are one of Ontario's most strategic housing solutions. By converting underutilized single-family homes into legal duplexes or triplexes, property owners can generate rental income, support multi-generational living, or create valuable development assets.

ASID specializes in taking properties from concept to occupancy, handling everything from zoning confirmation to final inspection sign-off.

What We Handle

  • Feasibility assessment and due diligence
  • Zoning compliance and legal use analysis
  • Architectural and engineering design
  • Building code and fire safety requirements
  • Separate metering and utility installation
  • Entrance separation and accessibility
  • Permit coordination and municipal approvals
  • Full construction management and delivery

Price Range

$150,000 – $350,000

Timeline

8–24 weeks

Warranty

5–7 years (Structural)

Our Conversion Process

A structured, milestone-based approach to every multi-unit conversion

Step 1: Feasibility Study

Assess zoning regulations, building condition, structural capacity, and overall development potential.

1–3 weeks

Step 2: Design & Planning

Architectural plans address code compliance, entrance separation, and utility distribution.

3–6 weeks

Step 3: Permitting

Municipal submissions, variance requests, building permit applications, and regulatory approvals.

4–8 weeks

Step 4: Construction

Structural work, system installations, finishing, and entrance creation with milestone payments.

8–16 weeks

Step 5: Inspections & Sign-Off

Building inspections, final approvals, and code compliance verification.

2–4 weeks

Step 6: Delivery & Documentation

Final handover with permits, certificates, warranties, and comprehensive documentation.

Upon completion

Why Choose ASID for Your Multi-Unit Conversion?

Zoning & Compliance Expertise

Deep knowledge of Ontario's zoning regulations and building code requirements for multi-unit properties.

Design Excellence

Smart layouts that maximize rental income while meeting all code and safety requirements.

Financial Discipline

Transparent budgeting and milestone-based payments that protect your investment.

End-to-End Delivery

From feasibility study to tenant-ready handover, we manage every phase of your conversion.

Risk Mitigation

Proactive identification and resolution of regulatory, structural, and operational challenges.

Investment-Ready Results

Conversions that meet lender requirements and maximize property value and rental potential.

Multi-Unit Conversions in Ontario's Housing Strategy

With Bill 23 requiring municipalities to allow at least 3 residential units per lot, multi-unit conversions are becoming a key strategy for addressing Ontario's housing supply challenges while creating investment opportunities for property owners.

Ready to Explore Your Conversion Potential?

Let's assess your property and create a roadmap to a profitable, compliant multi-unit conversion.

Not all properties qualify. Our assessment confirms zoning eligibility, structural capacity, and financial viability.

Start With a Free HABU™ Assessment

Important: All timelines, pricing ranges, and outcomes referenced on this page are estimates only. Multi-unit conversions are subject to zoning regulations, permit requirements, building code compliance, and municipal approvals. Final feasibility and costs can only be confirmed through formal assessment.