Underwriting

May 21, 2025
What is Underwriting?
Underwriting is the process lenders use to assess a borrower’s risk and determine whether to approve a mortgage application.
Why Underwriting Matters in Real Estate
In Canadian real estate, underwriting plays a critical role in securing mortgage financing. Lenders review credit history, income, assets, employment, and the property itself before making a loan decision.
Steps in underwriting may include:- Verifying income and employment
- Reviewing credit score and history
- Assessing debt service ratios
- Appraising the property’s value and condition
Automated underwriting systems may issue quick decisions, while complex applications (e.g. self-employed borrowers) are reviewed manually.
Understanding underwriting helps buyers prepare accurate documents, reduce delays, and improve approval odds.
Example of Underwriting in Action
The lender’s underwriter reviews the buyer’s income, credit, and appraisal to approve the mortgage before closing day.
Key Takeaways
- Evaluates borrower and property risk.
- Required for mortgage approval.
- May be automated or manual.
- Relies on complete documentation.
- Crucial step in the financing process.
Related Terms
- Mortgage Qualification
- Credit Score
- Debt Service Ratios
- Appraisal
- Lender Guidelines

Spring 2026 Housing Supply Report/CMHC
Spring 2026 Housing Supply Report/CMHC
The Marine Terrace apartments at 605 SE Marine Drive. (MCMP Architects, Peterson)
An overview of the 605 SE Marine Drive proposal and uses. (MCMP Architects, Peterson)
A rendering of the 605 SE Marine Drive proposal from the corner of SE Marine Drive and Fraser Street. (MCMP Architects, Peterson)
Renderings of the proposal for 605 SE Marine Drive in Vancouver. (MCMP Architects, Peterson)










Renderings of the 65-storey tower previously proposed for 145 Wellington Street West. (Partisans with Turner Fleischer / SKYGRiD)