The Climate Premium Is Becoming a Core CRE Underwriting Variable

Commercial real estate investors have always priced location, tenant quality, leverage and operating performance. A less visible variable is now moving closer to the center of the underwriting process: the cost and availability of property insurance. In many markets, insurance is no longer a routine line item that can be projected from a prior-year budget. It is becoming a measure of physical risk, capital-market resilience and the durability of a property’s income stream.

That shift matters because insurance affects both sides of a real estate investment. Higher premiums reduce net operating income and value, while limited coverage can complicate financing, ownership transfers and long-term hold strategies. For buyers, the question is no longer simply whether a property is located in a desirable submarket. It is whether the asset can remain economically insurable as weather patterns, carrier capacity and building standards evolve.

Recent research points to a widening gap between lower- and higher-risk markets. First Street’s analysis of commercial real estate insurance describes a climate premium: properties in areas with greater exposure face higher premiums, faster premium growth and more volatility. Deloitte estimates that even lower-risk properties could see insurance costs rise materially over the coming years, illustrating that the issue is not confined to coastal assets or regions with a history of catastrophic losses.

The practical effect is a change in underwriting discipline. A buyer who applies a simple percentage increase to historical insurance expense may be understating the risk. A more durable analysis should examine the property’s loss history, replacement cost, roof age, mechanical systems, elevation, drainage, construction type and proximity to hazards. It should also consider whether the current policy is unusually favorable, whether it renews before a planned sale or refinance, and whether deductibles have shifted to the point that the owner is effectively self-insuring a larger share of potential losses.

Insurance should also be tested against the property’s capital structure. Lenders typically require coverage that protects the collateral, but a policy can satisfy a lender’s minimum requirements without protecting the owner from every meaningful operating shock. Higher deductibles, sublimits, exclusions and business-interruption gaps can create a mismatch between headline coverage and actual downside protection. In a stressed event, that mismatch can affect rent collection, tenant retention and debt-service coverage at the same time.

For multifamily and industrial investors, the issue can be especially important because large roofs, exterior systems and broad site areas create substantial replacement exposure. Retail centers may face similar challenges when a single event damages shared parking, signage, roofs or access routes. Office assets are not immune. Older buildings can carry higher maintenance and system risk, while a difficult insurance renewal can become another obstacle for properties already navigating tenant demand and capital-improvement requirements.

The market is responding in several ways. Owners are investing in roofs, drainage, backup power, fire protection, water management and documentation that demonstrates risk mitigation. Some are consolidating coverage across portfolios to improve negotiating leverage. Others are revisiting deductibles or using alternative risk-transfer structures. None of these measures eliminates exposure, but they can improve the quality of the insurance conversation and make a property easier for carriers, lenders and buyers to understand.

For sellers, preparation is becoming part of the offering process. A clean insurance package should include current policies, claims history, renewal correspondence, loss runs, inspection reports and a clear record of completed resilience work. Providing that information early can reduce uncertainty during diligence. It may also prevent a buyer from assigning an unnecessarily severe insurance assumption simply because the available information is incomplete.

For buyers, the most useful metric is not the lowest quoted premium. It is the total cost of risk over the intended hold period. That means modeling premium growth, deductibles, capital improvements, downtime and possible coverage restrictions under multiple scenarios. A property with a slightly higher current premium may be the stronger investment if its building systems are well maintained and its coverage is more dependable. Conversely, a seemingly inexpensive asset can lose its pricing advantage if insurance costs reset immediately after closing.

The climate premium does not mean investors should avoid every market exposed to weather risk. Real estate decisions still depend on rent growth, supply, employment, replacement cost and basis. It does mean that physical risk must be connected to cash flow rather than treated as a separate environmental footnote. As insurance markets become more selective, the assets that are easiest to insure, finance and explain may command a meaningful advantage.

The broader lesson for CRE investors is straightforward: insurance has become an operating assumption that deserves the same scrutiny as taxes, utilities and debt costs. Owners who improve resilience and document it can protect more than the building. They can protect liquidity, financing options and future exit value. In a selective market, that combination may be one of the clearest ways to turn risk management into investment performance.

Sources: First Street Foundation, The Climate Premium on Commercial Real Estate Insurance; Deloitte, The impact of climate change on commercial real estate insurance costs; CBC Global Real Estate, Insurance Remains a Deal Variable in 2026.