Toronto property development authority
Developing property in Toronto.
A practical guide to multiplexes, Major Streets, multi tenant housing, garden and laneway suites and the property specific checks that determine whether the opportunity is truly feasible.
Reviewed by Ronald De Coteau, BCIN 38419. Last reviewed .
The short answer.
More housing may be permitted subject to a property specific feasibility review.
Duplexes through fourplexes have a citywide residential zone framework. Fiveplex and sixplex permissions are geography specific. Major Streets creates a separate townhouse and small apartment path. Garden suites, laneway suites and multi tenant housing follow their own rules.
Bottom line. Choose the correct permission first, then verify the site, existing building, Building Code, servicing, financing and permit package together.
Choose the right development path.
These project types are related, but they are not interchangeable. The right label determines the right zoning test and the right drawing package.
Path 1
Two to four units
Duplexes, triplexes and fourplexes are permitted in Toronto's R, RD, RS, RM and RT zones, subject to applicable standards.
Path 2
Fiveplex or sixplex
Current permissions apply to qualifying detached residential buildings within the Toronto and East York geography and Ward 23, not citywide.
Path 3
Major Streets
A distinct path for qualifying townhouses and small apartment buildings on mapped Major Street sites.
Path 4
Garden or laneway suite
Separate rear yard or laneway frameworks with their own access, setbacks, trees and servicing requirements.
Path 5
Multi tenant housing
A room rental and operating pathway involving zoning, annual licensing, Building Code, Fire Code and management obligations.
Path 6
Existing house conversion
Recognized use, permit history, existing building conditions, structure and fire and life safety can control the outcome.
Start with these seven checks.
These decisions shape the development plan before a full permit package or detailed construction budget is commissioned.
Check 1
Location, zoning and policy layers
Confirm the zone, Official Plan designation, overlays, site specific exceptions and any relevant geographic permission.
Check 2
Major Street status
Check the City's current mapping and zoning text. A busy road, bus route or familiar street name does not establish eligibility.
Check 3
Recognized existing use
Review permits, inspections, orders and prior approved drawings. A kitchen, tenant or finished basement is not proof of legal use.
Check 4
Correct unit strategy
Distinguish a multiplex, suite, multi tenant house, townhouse or apartment proposal before choosing drawings and consultants.
Check 5
Physical fit
Verify height, depth, setbacks, coverage, landscaping, access, waste, bicycles, parking, trees, heritage and servicing.
Check 6
Building Code and design path
Coordinate classification, fire separations, exits, structure, mechanical systems, plumbing, energy and accessibility.
Check 7
Applicable law and permit package
Make the survey, zoning statistics, plans, elevations, sections, forms and consultant documents tell one consistent story.
Major Streets is a separate development path.
For qualifying sites, the framework can open a materially different townhouse or small apartment opportunity.
Current outer permissions include four storeys for townhouses, six storeys for apartment buildings and a maximum of 60 apartment units, subject to the complete property specific rules.
Four questions come first.
Question 1
Is the site designated Neighbourhoods?
Begin with the Official Plan designation rather than assuming every residential location qualifies.
Question 2
Is it in the Residential Zone category?
Confirm the exact zone and the performance standards that apply to the proposed building type.
Question 3
Does the lot legally abut a mapped Major Street?
Use the City's official mapping and zoning framework, not traffic volume or transit service.
Question 4
Can the proposal satisfy the detailed standards?
Verify dimensions, setbacks, length, coverage, amenity, access, waste, bicycles, landscaping, trees, heritage, code and servicing.
Design and financing must evolve together.
The maximum theoretical density is not automatically the best project. Verify the smaller, simpler and more resilient version before committing to the headline number.
Speak with the financing team early.
Construction funding is commonly advanced in stages after completed work is verified. That can produce a cash flow gap even when the overall loan looks sufficient.
- Borrower experience, equity and guarantees
- Appraisal method and recognized rents
- Progress draw, cost consultant and holdback requirements
- Stabilization and takeout financing conditions
Stress test the pro forma.
Include more than hard construction costs. Build in approvals, consultants, financing carry, fees, municipal charges, contingency, operating costs and realistic timing.
Move from permission to a coordinated submission.
Step 1
Define the outcome
Confirm unit count, occupancy strategy, project type and decision timeline.
Step 2
Research the property
Review zoning, records, survey information, existing use, trees, heritage and services.
Step 3
Run feasibility
Identify the controlling constraints and compare credible project forms.
Step 4
Develop the concept
Coordinate layout, access, structure, mechanical systems, servicing and economics.
Step 5
Confirm compliance
Resolve zoning and applicable law issues or revise the design before submission.
Step 6
Complete documents
Align plans, elevations, sections, schedules, forms and consultant material.
Step 7
Submit consistently
Coordinate every response so one revision does not create a conflict elsewhere.
Step 8
Reduce redesign
Check the controlling constraints before the full drawing package is produced.
Clear answers to the headline questions.
Does Major Streets permission guarantee 60 units?
No. Sixty units is a maximum permission for qualifying apartment buildings, not a guaranteed property yield.
Are sixplexes permitted everywhere in Toronto?
No. Current fiveplex and sixplex permissions apply in the Toronto and East York geography and Ward 23. Verify the applicable bylaw and property location.
Does as of right zoning remove the need for a permit?
No. It can remove a rezoning barrier, but it does not remove Building Code, applicable law, drawings, permit or inspection requirements.
How do I know whether an existing basement apartment is legal?
Start with permit and inspection records rather than the physical condition alone. Different records provide different parts of the evidence.
Should I design the maximum unit count before speaking with a lender?
Usually not. Establish a preliminary site and unit strategy, then test it early against cost, appraisal, equity, cash flow and lender assumptions.
Verify the current City rules.
These primary sources establish the public framework. A property decision still requires the current map, zoning text, site facts and applicable law to be reviewed together.