Commercial real estate investors have long assumed that net operating income remains stable after natural disasters, but that assumption is now indefensible, according to Albert Slap, founder of RiskFootprint. Speaking about the risks facing coastal properties, Slap contends that traditional underwriting ignores the financial devastation a single flood or wind event can cause, eliminating cash flow for months and jeopardizing debt service.
Slap illustrates the problem with a scenario: a coastal property generating $1.2 million in annual NOI with $900,000 in debt service appears serviceable. However, using FEMA’s Hazus model to simulate a 500-year coastal flood, the property sustains 12% structural damage, 8% contents damage, and nine months of restoration time. NOI drops by 75%, making debt service impossible. The stressed debt service coverage ratio falls below 1.00. Traditional underwriting would miss this entirely, Slap says.
The issue compounds as insurance markets tighten. Hazard frequency rises, deductibles increase, exclusions expand, premiums become volatile, and business interruption coverage shrinks. Each factor erodes the financial cushion investors once relied on. Slap argues that quantifying hazard exposure should start with Expected Annual Loss calculations, using FEMA’s National Risk Index. For a $50 million building with a hurricane wind EAL rate of $444 per million dollars, the annual loss estimate is $112,600. Over a 10-year hold, that exceeds $1 million, not counting contents losses, business interruption, or tenant reputational damage. “This is ROI-ready intelligence,” Slap says.
Slap distinguishes between previous sustainability-focused conversations and the ROI-driven approach gaining traction now. “Every sustainability or resilience action has a cause and an effect. The cause is the decision to invest. The effect is the benefit,” he says. This framing makes resilience investments defensible to investment committees and lenders. Without quantified data, decisions default to intuition, which cannot substitute for risk modeling in a market with accelerating hazard severity.
RiskFootprint’s platform aligns with the ASTM International Property Resilience Assessment Standard (E 3429-24), covering over 34 hazard types for every U.S. property. It incorporates multiple flood models, including Swiss Re/Fathom pluvial, fluvial, and coastal data, FEMA FIRM maps, NOAA SLOSH storm surge, and NOAA/NASA King Tide projections. First-floor elevation estimates for more than 300 million buildings allow investors to move from exposure identification to financial impact modeling without custom engineering studies. Slap says pressure from lenders and secondary markets to require such analysis is already building.
