Commercial real estate investors who assume stable net operating income for coastal properties are operating on what one industry expert calls an indefensible assumption, given the increasing frequency and severity of natural hazards. Albert Slap, founder of RiskFootprint, contends that traditional underwriting models fail to account for the financial impact of property damage and business interruption from floods, hurricanes, and other events, leaving investors exposed to risks they cannot see.
Slap illustrates the problem with a common scenario: a coastal commercial property generating $1.2 million in annual NOI with $900,000 in annual debt service. On paper, the debt service coverage ratio appears adequate. However, when subjected to a 500-year coastal flood scenario using FEMA's Hazus model, the picture shifts dramatically. The model estimates 12% structural damage, 8% contents damage, and nine months of restoration time. NOI drops by 75%, and after accounting for uninsured losses and damage costs, the stressed DSCR falls below 1.00, meaning the borrower cannot service debt during the restoration period. Traditional underwriting, Slap notes, would not have caught this vulnerability.
The problem is compounded by tightening insurance markets. Slap describes an environment where hazard frequency is rising, deductibles are increasing, exclusions are expanding, premiums are volatile, and business interruption coverage is shrinking—all simultaneously. Each factor erodes the financial cushion investors once relied on to absorb event-driven losses.
To address this, Slap advocates for integrating Expected Annual Loss calculations into due diligence. EAL translates probabilistic hazard data into annualized financial terms. For example, a building with a $50 million replacement cost and a hurricane wind EAL rate of $444 per million dollars of value produces an estimated annual loss of roughly $112,600. Over a 10-year hold period, that exceeds $1 million, not including contents losses, business interruption, or reputational damage. Slap calls this “ROI-ready intelligence” that should be standard for coastal acquisitions.
Slap distinguishes between earlier sustainability-focused framing and his ROI-driven approach. “Every sustainability or resilience action has a cause and an effect,” he says. “The cause is the decision to invest. The effect is the benefit—reduced losses, improved continuity, lower operating costs, or enhanced market value.” This framing makes resilience investments defensible to investment committees and lenders. Investors who integrate hazard modeling can identify impaired assets before purchase, price risk more accurately, and make capital improvement decisions with clearer cost-benefit analysis.
RiskFootprint’s platform aligns with the ASTM International Property Resilience Assessment Standard (E 3429-24), which structures hazard analysis across three stages: hazard exposure modeling, vulnerability and value-at-risk assessment, and feasible mitigation measures with cost-benefit analysis. The platform covers more than 34 hazard exposure types for every U.S. property and incorporates multiple flood models, including Swiss Re/Fathom data, FEMA FIRM maps, NOAA SLOSH storm surge, and NOAA/NASA King Tide projections. It also includes first-floor elevation estimates for more than 300 million buildings, a key variable in flood vulnerability.
For coastal CRE investors, the practical consequence is that hazard-driven financial stress testing is now available as an automated input rather than a custom consulting engagement. Slap says pressure from lenders and secondary markets to require this type of analysis is already building, making quantification of hazard exposure a growing imperative for prudent investment underwriting.
