Construction Financing in Canada: How CMHC Insurance Cuts Your Costs
Introduction: Building New Is Expensive - CMHC Makes It Less So
Construction financing for multi-family and mixed-use projects in Canada is inherently complex. You are borrowing against a property that does not yet exist, with costs that can shift and timelines that can extend. Conventional construction loans reflect this risk with higher rates, lower leverage, and strict requirements.
CMHC insured construction financing changes the equation dramatically. By providing government-backed mortgage insurance on qualifying projects, CMHC allows developers and investors to access up to 95% loan-to-cost, interest-only payments during construction, and long-term take-out financing at below-market rates.
For an overview of all construction financing options, visit our construction financing page.
Source: CMHC, 2024 - Construction Lending and Multi-Unit Mortgage Insurance guidelines
How CMHC Construction Financing Works
Unlike a conventional mortgage on an existing property, construction financing is disbursed in stages ("draws") as the building progresses. CMHC insured construction financing wraps the construction period and the permanent (take-out) mortgage into a single insured loan.
Structure overview:
| Phase | What Happens |
|---|---|
| Pre-construction | CMHC reviews and issues insurance commitment based on project plans, budgets, and pro formas |
| Construction (12–24 months typical) | Lender disburses funds in draws as verified by a cost consultant; borrower pays interest only on drawn funds |
| Completion / stabilisation | Upon substantial completion and occupancy, the loan converts to a permanent (take-out) mortgage |
| Permanent phase | Standard mortgage with P+I payments, up to 40–50 year amortisation (MLI Select) |
The CMHC insurance commitment is issued before construction begins, providing certainty of permanent financing - a significant advantage over conventional construction where take-out financing must be arranged separately.
Source: CMHC, 2024 - Progress Advance/Construction Lending Program
Eligibility: What Qualifies
| Criterion | Requirement |
|---|---|
| Property type | Purpose-built rental (5+ units), mixed-use with rental majority, seniors housing |
| Location | Anywhere in Canada |
| Borrower | Experienced developer preferred; first-time developers may qualify with strong team |
| Minimum equity | 5–15% of total project cost (depending on MLI Select score) |
| Pre-leasing | Not required for CMHC insured; helps strengthen application |
| Environmental | Phase I ESA required; Phase II if warranted |
| Zoning | Must be fully zoned and approved for proposed use |
CMHC insured construction financing is available for new builds, substantial renovations (where the scope is equivalent to new construction), and conversion projects (e.g., office-to-residential).
Learn more about land development and construction projects on our property types page.
Source: CMHC, 2024 - Multi-Unit Mortgage Insurance eligibility criteria
CMHC vs Conventional Construction Financing
Here is how CMHC insured compares to conventional for a $10M, 40-unit apartment construction project:
| Metric | Conventional Construction | CMHC Insured Construction |
|---|---|---|
| Loan-to-cost | 65–75% | Up to 95% |
| Equity required | $2,500,000–$3,500,000 | $500,000–$1,500,000 |
| Construction rate | Prime + 2.0–3.0% (8.45–9.45%) | Prime + 0.75–1.50% (7.20–7.95%) |
| Interest during construction | ~$700,000–$850,000 | ~$475,000–$575,000 |
| Take-out rate | 5.50–6.25% | 4.50–5.15% |
| Take-out amortisation | 25 years | 40–50 years |
| Monthly payment (permanent) | ~$50,600 ($8M, 25yr, 5.75%) | ~$40,200 ($9.5M, 50yr, 4.65%) |
| Insurance premium | N/A | $380,000–$475,000 (4.0–5.0%) |
| Net equity savings | - | $1,000,000–$2,000,000 |
Despite the insurance premium, CMHC insured construction financing typically saves the developer $1–2M in equity requirements and produces significantly lower permanent financing costs.
Source: Bank of Canada, 2024 - prime rate 6.45% as reference; CMHC premium schedule
The Draw Schedule: How Funds Are Released
Construction loans are not disbursed as a lump sum. Funds are released in draws tied to construction milestones, verified by an independent cost consultant:
| Draw Stage | Typical % of Loan | Verification Required |
|---|---|---|
| Land acquisition / site prep | 10–15% | Title, permits, site mobilisation |
| Foundation / below-grade | 15–20% | Foundation inspection, engineer certification |
| Structure / framing | 20–25% | Structural inspection |
| Mechanical / electrical / envelope | 20–25% | Rough-in inspections |
| Interior finishes | 10–15% | Progress inspection |
| Substantial completion | 5–10% | Occupancy permit, deficiency holdback |
Each draw requires the cost consultant to verify that work completed matches the budget line items and that the project is on schedule. The lender withholds a holdback (typically 10%) as required under provincial construction lien legislation.
Source: Ontario Construction Act, 2024; Alberta Builders' Lien Act; Manitoba Builders' Liens Act
Interest-Only During Construction: Why It Matters
During the construction phase, you only pay interest on funds that have actually been drawn - not on the full committed loan amount. This is a major cash flow advantage:
Example: $10M construction loan, 18-month build
| Month | Cumulative Draws | Monthly Interest (at 7.50%) |
|---|---|---|
| Month 1 | $1,000,000 | $6,250 |
| Month 6 | $4,000,000 | $25,000 |
| Month 12 | $7,500,000 | $46,875 |
| Month 18 | $10,000,000 | $62,500 |
| Total interest during construction | - | ~$525,000 |
Under a conventional loan at 9.0%, that same interest bill would be approximately $630,000 - a $105,000 savings attributable to the CMHC insured rate advantage alone.
Take-Out Financing: The Permanent Mortgage
Upon completion and stabilisation (typically 85%+ occupancy), the construction loan converts to a permanent mortgage. This is where CMHC insurance delivers its greatest long-term value:
- Rates: 80–150 bps below conventional commercial mortgage rates
- Amortisation: Up to 40 years standard; up to 50 years under MLI Select
- Term: 5 or 10 years typical
- LTV: Based on the completed and stabilised appraised value (income approach)
The transition from construction to permanent financing is seamless under a CMHC insured commitment - no need to shop for a separate take-out lender or refinance.
Source: CMHC, 2024 - take-out mortgage terms under multi-unit insurance
Affordable Housing Bonus: Up to 95% Loan-to-Cost
Projects that commit to affordability thresholds can access the highest leverage:
| Affordability Commitment | Maximum Loan-to-Cost |
|---|---|
| Market rents (no affordability commitment) | 85% |
| 20%+ units at or below 80% of median market rent | 90% |
| 20%+ units at or below 60% of median market rent | 95% |
| Non-profit or Indigenous housing | 95% |
At 95% LTC on a $10M project, the developer needs only $500,000 in equity. This is transformative for affordable housing development and is one reason CMHC insured construction volumes have grown significantly since the introduction of MLI Select.
Source: CMHC, 2024 - MLI Select construction financing criteria
Application Timeline and Process
| Step | Timeline |
|---|---|
| Pre-application consultation with CMHC-approved lender | 2–4 weeks |
| Full application submission (plans, pro formas, budgets) | 2–4 weeks |
| CMHC review and commitment | 6–12 weeks |
| Construction commencement | Upon commitment and permit issuance |
| Construction period | 12–24 months |
| Stabilisation period | 3–6 months post-completion |
| Conversion to permanent mortgage | Upon stabilisation |
Start the CMHC process early - ideally during the design development phase. The Mortgage World can help you assemble the application package and connect with CMHC-approved lenders. Contact us to discuss your construction project.
Key Takeaways
- CMHC insured construction financing offers up to 95% loan-to-cost for qualifying multi-family projects.
- Interest-only during construction reduces carrying costs during the build phase.
- Seamless transition to permanent financing eliminates the risk and cost of arranging separate take-out.
- 40–50 year amortisation on the permanent mortgage dramatically reduces monthly payments.
- Insurance premiums are more than offset by lower equity requirements and reduced interest rates.
- Affordable housing projects get the best terms - up to 95% LTC with reduced premiums.
References
- CMHC - Multi-Unit Construction Lending: https://www.cmhc-schl.gc.ca/professionals/project-funding-and-mortgage-financing/mortgage-loan-insurance/multi-unit-insurance
- CMHC - MLI Select for Construction: https://www.cmhc-schl.gc.ca/professionals/project-funding-and-mortgage-financing/mortgage-loan-insurance/multi-unit-insurance/mli-select
- Bank of Canada - Policy Interest Rate: https://www.bankofcanada.ca/core-functions/monetary-policy/key-interest-rate/
- Ontario Construction Act: https://www.ontario.ca/laws/statute/90c30
- CMHC - Insurance Premiums: https://www.cmhc-schl.gc.ca/professionals/project-funding-and-mortgage-financing/mortgage-loan-insurance/multi-unit-insurance
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