Environmental Due Diligence: Radon, Oil Tanks & Hidden Hazards in BC Homes

Some environmental risks are invisible but serious. Buyers in British Columbia should consider testing for radon, checking for buried oil tanks, and asking about other potential hazards during the subject removal phase.

☢️ Radon Gas

Radon is a radioactive gas that occurs naturally in soil and can build up indoors, especially in basements. Health Canada recommends mitigation for levels above 200 Bq/m³. Sellers must disclose if high radon levels are known.

🛢️ Buried Oil Tanks

Older properties, especially in Vancouver and Victoria, may have buried oil tanks no longer in use. Leaking tanks can lead to costly environmental remediation. Sellers must disclose known tanks; buyers may want to include an oil tank scan as a subject.

🧾 Best Practices for Buyers

• Ask sellers if radon or environmental tests have been done
• Include subjects for radon or oil tank scans in your offer if applicable
• Review city permit history and title records for red flags
• Consult your REALTOR® and inspector for region-specific risks

This information is intended as a general guide. For risk-specific evaluations, consult qualified environmental experts or legal professionals.