Converting a Single Old Home into a Multiplex? Commercial Mortgage Strategies for BC Landlords

In BC, especially in Greater Vancouver, buying a single lot with an older home, tearing it down, and converting it into a multiplex (multi-unit) is a key strategy for experienced real estate investors and landlords to increase cash flow and build equity.

However, many landlords quickly realize that traditional residential mortgages simply cannot support this type of project. Especially when a project involves millions of dollars, multiple rental units, or phased construction, the lending logic changes entirely.

If you already own a portfolio of multiplexes, or are preparing to launch your next multiplex conversion project, this article outlines 3 core strategies for commercial/multi-unit property lending in BC.

1. What is a "Multi-Unit" Mortgage? When does it stop being Residential?

Generally, if a property contains 1 to 4 units (e.g., a main house with a legal laneway home), it can still be financed as a residential mortgage. But once it reaches 5 units or more (e.g., a purpose-built rental apartment building), it is classified as a Commercial Property.

The underwriting logic for commercial loans is completely different from residential:

• Focus on the property's profitability: Lenders look at the Net Operating Income (NOI) and Debt Service Coverage Ratio (DSCR) rather than just the borrower's salary.
• Higher down payment: Commercial properties typically require 25% to 35% (or more) down.
• Shorter terms: The amortization period may be 25-30 years, but the contract term is usually short (1 to 5 years).

2. If You Already Secured $3M, How Do You Find a Lower Rate?

For those who have already secured millions in funding and are either mid-construction or recently completed, there are usually three paths to find lower rates:

A. Traditional Big Banks (A-Lenders)

If the project is complete, tenants are stable, and your personal income/credit is excellent, major banks offer highly competitive commercial rates. However, approval is strict and can be challenging for self-employed individuals or newly formed corporations.

B. Credit Unions and B-Lenders

This is the top choice for many small-to-mid-sized developers. They are more flexible than big banks, offer faster approvals, and are willing to accept unique projects. Rates are slightly higher than big banks but much lower than private lending.

C. Commercial Refinancing (Take-out Mortgage)

If your current loan is a Construction Loan, it likely carries a higher rate due to higher risk. Once the project is built and has its occupancy permit, you should immediately arrange for a Commercial Take-out Mortgage. This transition usually significantly lowers the interest rate.

3. The Fatal Trap at Commercial Renewal

Commercial mortgage terms are often short (maybe 1 or 2 years). If your multi-million dollar loan is coming up for renewal, watch out for:

• Appraisal Risk: Commercial appraisals rely heavily on current rental income. If rents drop or vacancy rates rise, the lender may lower the loan amount.
• Cash to Close: If the new appraised value results in a lower loan amount, you will need to bring cash to pay down the mortgage principal.
• Act Early: Don't wait until one month before maturity. Commercial renewals require 3-6 months to prepare documents and compare terms.

Loan Products Specifically for "Single-to-Multiplex" Conversions

If you are planning your next "single old home to multiplex" project, you need Construction Financing:

• Land Acquisition Loan: Used to buy the old house and lot.
• Draw Mortgage (Construction Loan): Funds are advanced in stages based on construction progress (e.g., foundation complete, framing complete).
• Bridge Loan: Short-term capital if you need to buy your next property before the current one sells.