Climate overlay zones reshape commercial real estate feasibility

Dense urban commercial building facades along a Lower Manhattan street canyon.

The convergence of flood, fire, and heat-risk mapping is fundamentally repricing commercial real estate across the United States. Rising insurance costs, tightening lender requirements, and expanding regulatory climate overlays are transforming what were once routine feasibility analyses into complex risk-modeling exercises. For CRE developers and their capital partners, climate overlay zones now function as a de facto underwriting screen — one that can kill a deal before the first shovel hits dirt. This research compendium assembles the definitive data across all ten domains requested, organized for direct use in MMCG's analytical blog post.

1. FEMA flood zones are widening the gap between mapped and actual risk

Zone Designations and What They Mean for CRE: FEMA's Special Flood Hazard Areas (SFHAs) carry a 1-in-4 chance (26%) of flooding during a 30-year mortgage. The key zones are: AE (1% annual chance, detailed Base Flood Elevations shown — most common SFHA designation), VE (coastal high-hazard with wave action ≥3 feet — highest risk and most restrictive), X shaded (moderate risk, 0.2% annual chance — no insurance mandate), and X unshaded (minimal risk). Mandatory flood insurance purchase applies to all SFHA properties with federally-backed mortgages.

The FEMA-vs-reality gap is enormous. FEMA identifies 8.7 million properties in SFHAs; First Street Foundation identifies 14.6 million — 68% more. The greatest divergence occurs in inland states: Utah (419% more than FEMA), Wyoming (325%), Montana (311%). The Congressional Budget Office confirms: "Among properties with ≥1% annual chance of flooding, more are outside SFHAs than inside." Over 20% of all NFIP claims come from properties outside high-risk zones.

Risk Rating 2.0 (implemented Oct 2021–April 2023) replaced the 1970s-era zone-based pricing with property-specific risk factors including flood frequency, multiple flood types (river, storm surge, coastal erosion, heavy rainfall), distance to water, building elevation, replacement cost value, and prior claims. Flood zones no longer determine premiums — only mandatory purchase requirements Impact: 77% of policyholders saw premiums increase; in FL, LA, TX: ≥80% of policies increased. Commercial premiums can increase at up to 25%/year until reaching full-risk rate. New commercial policies are immediately charged full risk premiums — no glidepath.

NFIP by the numbers: 4.7 million policies providing $1.3 trillion in coverage across 22,000+ communities. Commercial building coverage capped at $500,000 (widely acknowledged as insufficient for most CRE). NFIP carries $22.5 billion in debt to the U.S. Treasury as of February 2025, accruing ~$1.7 million daily in interest. The program paid $8 billion in claims in 2024 alone (Hurricanes Helene and Milton). NFIP has been reauthorized 33 times since FY2017; currently authorized through September 30, 2025.

Cost Impacts on CRE Development:

• Commercial NFIP premiums typically range $2,000–$25,000+/year; high-risk Zone AE/VE properties can see $10,000–$50,000+/year

• Elevation certificates: $150–$2,000+ (commercial at higher end)

• Freeboard requirements range from 1–3 feet above BFE depending on jurisdiction. Florida Building Code (8th Edition) requires 1 foot statewide; some coastal communities require 3+ feet 

• Each foot of freeboard adds approximately 0.25%–1.5% of total construction cost (FEMA/ASFPM)

• Premium savings from freeboard: often >50% reduction for 2–3 feet above BFE

• Dry floodproofing (permitted for non-residential in A Zones): $3–$20+ per sq ft for retrofits

• FEMA's 50% Rule: renovations exceeding 50% of market value trigger full current floodplain compliance

• Flood-resilient new construction premium: 2%–10% above standard construction

• Properties in 100-year floodplain valued 4.4%–13.3% less than comparable non-floodplain properties (NBER)

• Sophisticated CRE buyers discount flood zone properties by ~5 percentage points more than typical buyers (Stanford)

• NFIP coverage has fallen ~16% since 2009 (nearly 900,000 fewer active policies) — NY Fed, 2025

2. Wildfire hazard severity zones are a national — not just California — problem

CAL FIRE's Fire Hazard Severity Zone system classifies land as Moderate, High, or Very High FHSZ. SB 63 (2021) expanded mapping to include Moderate and High zones in Local Responsibility Areas. Updated SRA maps took effect April 1, 2024; LRA maps released in phases through March 2025, effective July 1, 2025. Properties in Very High FHSZ must comply with Chapter 7A of California Building Code (WUI construction standards), defensible space requirements, and face real estate disclosure mandates.

Colorado adopted the Colorado Wildfire Resiliency Code (CWRC) effective June 1, 2025 — making it one of only a few states with a statewide wildfire building code (SB 23-166). Oregon completed WUI risk mapping (five risk classes) per Senate Bill 762 in 2022. The International Wildland-Urban Interface Code has been adopted in ~200 jurisdictions across 24 states, with Montana, Nevada, Pennsylvania, Utah, and Washington implementing it statewide.

Wildland-Urban Interface statistics are staggering. WUI covers 9.4% of contiguous U.S. land — home to 44 million+ homes (32% of all housing). WUI homes increased 47% from 1990 to 2020, with 2.6 million homes built in WUI between 2010 and 2020 alone. California has 5 million housing units (45% of state total) in WUI. Net migration into wildfire-prone areas totaled 446,343 people in 2022 — jumping 50%+ in two years (Redfin).

Wildfire loss data:

• 2024: 8.9 million acres burned (127% of 10-year average); 2020: 10.1 million acres

• January 2025 LA fires: 16,251+ structures destroyed, insured losses $20–$45 billion (Moody's RMS: $20–30B; CoreLogic: $35–45B; total economic damage: $250–$275 billion)

• Camp Fire (2018): 18,804 structures, $12.5 billion insured; triggered PG&E bankruptcy ($30B in liabilities)

• Marshall Fire (2021): 1,084 structures, $2 billion+ total losses; 67% of homeowners underinsured 

• Lahaina Fire (2023): 2,200+ structures, $5.5 billion total damage, 102 fatalities

• Housing at risk: California 1.26 million units ($761 billion); Colorado 319,000; Texas 243,000 (Cotality/CoreLogic, 2025)

• Verisk: 4.5 million+ U.S. properties at high-to-extreme wildfire risk, with >2 million in California 

Defensible space and building code cost impacts:

• California's three-zone system: Zone 0 (0–5 ft, ember-resistant, per AB 3074), Zone 1 (0–30 ft), Zone 2 (30–100 ft)

• Chapter 7A requires: Class A roofing, 1-hour fire-rated exterior walls, tempered multi-pane windows, ember-resistant vents (≤¼ inch mesh), ignition-resistant decking, enclosed eaves

• Headwaters Economics finding: "Negligible cost differences" between typical and wildfire-resistant new construction when designed from the start

• IBHS data: Fire-resistant roofing adds $5,860 (27%) to typical roof cost; retrofitting an existing roof: ~$22,010 

• Overall WUI-compliant new construction: incremental costs concentrated in roofing, windows, siding, vents — small percentage of total project cost

• NIBS benefit-cost ratio: $13 saved for every $1 invested in hazard mitigation through modern building codes

• FORTIFIED homes had ~35% fewer claims and ~23% less severe damage when claims were filed (NC study)

3. Insurance market withdrawals are rewriting CRE economics

California insurer exits — timeline and scale:

• State Farm (#1 market share): Stopped new applications May 2023; non-renewed 30,000 homeowners + 42,000 commercial apartment policies March 2024; projects dropping 1 million policies by 2028; surplus declined 68% from $4.1B to $1.3B (2016–2023); paid $1.26 for every premium dollar over 9 years

• Allstate: Stopped new policies November 2022; received 34% rate increase August 2024

• Farmers (#2): Capped new policies at 7,000/month starting 2023

• 7 of California's 12 largest insurers paused or restricted policies (including AIG, Chubb, Hartford, Tokio Marine, Liberty Mutual)

• Quote declinations jumped from 14.6% (June 2022) to 52.3% (April 2023) vs. 26.2% nationally

• 13% of California Realtors reported sales falling through in 2024 due to insurance unavailability — nearly double the 2023 rate

California FAIR Plan explosion: Policies grew from ~203,000 (Sept 2020) to ~668,000 (Jan 2026). Exposure grew from $153 billion to ~$724 billion. Written premium surged from $87 million (2018) to ~$1.96 billion (2025) — a 22x increase. Filed for 35.8% average rate increase from spring 2026. Commercial coverage available up to $20 million per building.

Florida: 7 property insurers went bankrupt during 2021–2022. Average homeowner premium: $5,376 (vs. national average $2,181). Some condo associations saw premiums spike from $65K to nearly $800K over four years. Florida insurers spend 50–60% of premium dollars on reinsurance vs. 25–30% elsewhere. Reform progress: SB 2-A (Dec 2022) eliminated one-way attorney fees, banned assignment of benefits, and created FORA ($1B state reinsurance backstop). Results: 2024 was the first profitable year for domestic property companies since 2016; average rate requests dropped from 21% to 0.2% in 2025; Citizens announced -5.6% rate reduction.

Louisiana: 11–12 property insurers declared insolvent between July 2021–Feb 2023. 20+ insurers exited the state entirely. Louisiana Citizens grew from 35,000 to 128,000 policyholders with a 63% rate increase. Average premium in coastal Jefferson Parish: $17,623/year.

Commercial property insurance nationally: Q1 2023 averaged 20.4% increases — first time above 20% in two decades (CIAB). Property catastrophe reinsurance for loss-hit U.S. accounts jumped 45–100% at Jan 2023 renewals (Gallagher Re). Swiss Re: insured natural catastrophe losses exceeded $100 billion for 5 consecutive years through 2024. Munich Re warned: "There is a growing number of properties that are becoming uninsurable, unsaleable, and ultimately unusable because of their location." 

Impact on CRE underwriting math: Insurance is now a valuation issue, not just an operational line item. In some markets, annual insurance expenses increased >40% (Fannie Mae data, 2021–2023). Higher insurance costs reduce NOI → reduce DSCR → reduce loan proceeds. J.P. Morgan projects CRE insurance premiums will rise 80% by 2030. Deloitte projects average monthly CRE building insurance cost will grow from $2,726 (2023) to $4,890 by 2030 (8.7% CAGR); highest-risk states: $3,077 → $6,062 (10.2% CAGR). 90% of buildings studied were underinsured; 68% underinsured by 25%+ (Kroll appraisal study).

4. Extreme heat is the emerging third overlay

NOAA's NWS HeatRisk tool, expanded to the contiguous U.S. in 2024, provides a 5-level (0–4) color-coded forecast system factoring in how unusually temperatures deviate from local/seasonal norms, overnight relief, and CDC heat-health thresholds. No formal "heat overlay zone" exists in U.S. zoning yet — but heat mitigation is being embedded into energy codes and municipal requirements.

Phoenix: Recorded 113 consecutive days ≥100°F in 2024 (shattering prior record of 76); 145 total days at 100°F+; 61 days at 110°F+; Maricopa County: 645 heat-related deaths in 2023 (52% increase YoY). Las Vegas: summer 2024 average high 107.6°F; peak of 120°F in 2023; 294 heat-related deaths in Clark County (2023).

Urban Heat Island effects: Washington DC shows up to 17°F differentials within the metro area. Each 1°C increase raises energy demand 0.5%–5%. Standard weather datasets underestimate urban cooling energy demands by 25%–34% (Boudali Errebai et al.). UHI elevates cooling Energy Use Intensity by 7% today, projected 91% increase by 2050 (Des Moines UBEM study).

Municipal requirements: Miami-Dade County Zoning Ordinance Section 951 requires heat-reflective roofing materials (minimum SRI of 78 for low-sloped roofs, SRI of 29 for steep-sloped). Phoenix adopted 2024 IECC with cool roof provisions (minimum 3-year aged solar reflectance of 0.55, thermal emittance of 0.75). Cool roofs lower indoor temperatures by up to 9°F and deliver 12–18% energy savings in California commercial buildings (LBNL).

OSHA Heat Standard: NPRM published August 30, 2024 (89 FR 70698). Covers ~36 million workers including all construction. Initial trigger at 80°F heat index (drinking water, break areas, acclimatization protocols). High-heat trigger at 90°F: mandatory 15-minute rest breaks every 2 hours. Over 43,000 public comments received. Current status uncertain — DOL website suspended updates as of October 2025. In Phoenix, mandatory breaks would apply during most of the construction season — directly impacting project schedules and costs.

5. ESG scoring and institutional capital increasingly filter for climate risk

GRESB now scores physical climate risk within its Risk Management component (starting 2023). Over 2,200 real estate participants submitted in 2024, covering portfolios valued at $9 trillion. More than 150 institutional investors representing $50 trillion+ in assets use GRESB data. 94% of participants incorporate resilience into climate strategy.

Major institutional CRE investors are integrating climate risk unevenly. Prologis conducts annual physical risk scenario analysis covering 100% of its global portfolio under multiple RCP pathways, with a net-zero target by 2040 (SBTi-validated). ShareAction's 2025 grades: Prologis (B), Blackstone (F, 3% score), Brookfield (E), Starwood (F, 4% score). 72 CRE organizations report under TCFD; 413 in CDP; 87 in Net Zero Asset Managers Initiative.

ULI/LaSalle (2024): Exit cap rate discount for physical risk is "frequently 25 to 50 basis points" — an increasingly standard tool. CBRE (2022): 40% of investors would pay a premium for superior resiliency; 22% would seek discounts for non-resilient buildings. JLL (2024): 94% of respondents actively implementing climate risk mitigation; 45% of CRE leaders will only select climate-resilient buildings by 2030.

SEC Climate Disclosure Rules (adopted March 2024) are effectively dormant — SEC withdrew its defense in March 2025; Eighth Circuit placed the case in abeyance September 2025. Rules remain on the books but are not being enforced. The 2010 SEC climate disclosure guidance remains in effect. Shareholder ESG proposals dropped >50% (92 in 2025 vs. 206 in 2024).

6. Lenders are building climate risk into underwriting, but unevenly

FHFA issued its first comprehensive climate risk management Advisory Bulletin in May 2024, establishing a five-component framework for Fannie Mae and Freddie Mac: governance, risk identification/assessment, strategic planning, metrics/data, and scenario analysis. The CBO projects total expected flood damage to federally backed properties over 30 years at ~$200 billion. GSEs manage $7–8.5 trillion in MBS assets. No explicit LTV reductions for climate-exposed properties exist in current public guides, but enhanced assessment is signaled.

CMBS: Standard underwriting: max 75% LTV, minimum 1.25x DSCR, minimum 7% debt yield. Trepp overall delinquency rate: 7.26% (Nov 2025). Moody's incorporates RMS catastrophe models and Climate On Demand platform for property-level physical risk in CMBS transactions. Four Twenty Seven data (now Moody's) is included in CMBS and CRE CLO presale reports. Fitch identifies "accelerating climate risk" as a potential disruptor. Banks are increasing down payments for coastal/high-risk areas, effectively decreasing LTV ratios (ClimateCheck). Rising insurance costs in climate-exposed areas are already reducing effective leverage by compressing NOI.

Federal Reserve pilot climate scenario analysis with the 6 largest U.S. banks found: ~20% of CRE loans impacted in a Northeast hurricane scenario; average probability of default increased ~40 bps for CRE; under idiosyncratic shock, PDs increased ~260 bps for CRE, with 9% of CRE loans experiencing 500+ bps PD changes. Moody's: a typical CRE loan portfolio could see a near 18% increase in default probability and ~$200 million increase in expected losses from physical risk by 2050.

CFA Institute (2024): 17% of community/regional bank CRE loans are in high-flood-risk FEMA zones. First Street research: 30% of 191 banks studied had climate risk approaching "material" levels (damages >1% of property value), representing $627.4 billion in outstanding real estate loans.

7. Regulatory frameworks are fragmenting by jurisdiction

California SB 253 (Climate Corporate Data Accountability Act): Applies to entities with >$1 billion revenue doing business in California. Requires disclosure of Scope 1, 2, and 3 GHG emissions. Scope 1 & 2 reporting deadline: August 10, 2026 (fiscal year 2025 data). Scope 3 reporting begins 2027. Penalties: $500,000/entity/year. Remains fully in effect; CARB published draft regulations December 9, 2025.

California SB 261 (Climate-Related Financial Risk Act): Applies to entities with >$500 million revenue. Requires biennial TCFD-aligned climate-related financial risk reporting. Statutory deadline (Jan 1, 2026) paused by Ninth Circuit injunction (Nov 18, 2025); CARB will not enforce until appeal resolves. Penalties: $50,000/entity/year. Large REITs and institutional CRE firms with California operations will be subject to both laws.

Florida Building Code, 8th Edition (effective Dec 31, 2023): References ASCE 7-22 for wind loads; adds tornado load provisions for Risk Category III and IV structures; vertical pressures on solid surfaces increased 20–27% from previous SB 2-A eliminated one-way attorney fees, banned assignment of benefits for policies issued after Jan 1, 2023, shortened claims deadlines (from 2 years to 1 year), and created the $1 billion FORA state reinsurance backstop.

Colorado CWRC (effective June 2025): Statewide WUI building code. Two-class structure hardening system. Three structure ignition zones. WUI jurisdictions must adopt by April 1, 2026. Research shows homes built to wildfire-resistant standards are 40–60% more likely to survive (Headwaters Economics).

NYC Local Law 97 (2019): Buildings >25,000 sq ft must meet GHG emission limits starting 2024; fines of $268 per metric ton over the limit. Directly impacts major CRE portfolios.

FEMA canceled BRIC (Building Resilient Infrastructure and Communities) in 2025, which had distributed $4.5 billion to ~2,000 projects over four years — potentially endangering billions of CRE assets (Bisnow, Nov 2025).

8. Climate risk tools are becoming standard CRE due diligence

First Street Foundation provides property-level Flood Factor, Fire Factor, Heat Factor, Wind Factor, and Air Factor (scores 1–10) for all U.S. residential and commercial properties. Integrated into Realtors Property Resource, and enterprise licensing for lenders. Finding: homeowners' insurance costs rose from ~7.5% of a typical mortgage in 2000 to 22% in 2023.

Moody's RMS (acquired for $2 billion in 2021) predicts insured average annual losses from North Atlantic hurricanes could rise 24% and European flood risk by 59% by 2050. Integrated into Trepp's CMBS analytics. Four Twenty Seven (now Moody's) tracked climate impact on 2,000+ companies and 320 REITs in 196 countries; data now included in CMBS presale reports.

Verisk FireLine scores 0–30 across 13 Western states. CoreLogic Wildfire Risk Score (1–100) covers 16 states at 30-meter resolution — 98% of homes destroyed in Camp Fire had CoreLogic score of 60+. California-specific Wildfire Mitigation Score created for CDI regulatory compliance.

FEMA Hazus 7.0 (2024): GIS-based loss estimation covering flood, hurricane, tsunami, earthquake. Uses National Structure Inventory with USACE. Free to states and consultants for hazard mitigation planning.

Jupiter Intelligence ($84M raised) provides enterprise-grade analytics with Model Risk Management validation from major banks. ClimateCheck provides property-level reports connecting climate risk to mortgage/ending risk across five financial risk categories.

Adoption data: 93% of ULI firms integrate transition risks into investment decisions (2024 C Change Survey). But only 20% of banks use climate-scenario analyses, and only 18% integrate climate risks into risk management (MSCI, 2024). Two in three CRE leaders will spend more on climate resilience by 2030 (JLL).

9. Key market data points for the blog post

Data Point	Figure	Source
US CRE market total value	$32.8 trillion	Goetzmann et al./NBER
Community/regional bank CRE loans in FEMA high-risk zones	17%	CFA Institute, 2024
Outstanding RE loans at "material" climate risk	$627.4 billion	First Street/NMP
Properties in FEMA SFHAs (FEMA estimate)	8.7 million	FEMA
Properties at substantial flood risk (First Street)	14.6 million	First Street Foundation
Homes in Wildland-Urban Interface	44 million+ (32% of all)	USFS/SILVIS Lab
WUI home growth 1990–2020	+47%	USFS
Properties at high-extreme wildfire risk	4.5 million+	Verisk
Annual U.S. flood damage (10-yr avg)	$46 billion	CBO, 2024
Uninsured flood losses annually	$17.1 billion (70% of total)	Nature Climate Change
Commercial NFIP coverage cap	$500,000	FEMA
NFIP debt to Treasury	$22.5 billion	CRS, Feb 2025
FL avg homeowner premium	$5,376 (vs. $2,181 national)	Insurance industry data
CRE insurance cost projection (2023→2030)	$2,726→$4,890/month	Deloitte
J.P. Morgan CRE premium projection to 2030	+80%	J.P. Morgan
Reinsurance rate jump (Jan 2023, loss-hit)	45–100%	Gallagher Re
Swiss Re insured cat losses (5 consecutive years)	>$100B/year	Swiss Re sigma
NIBS mitigation benefit-cost ratio	$13:$1	NIBS, 2019
Cap rate climate risk discount (emerging)	25–50 bps	ULI/LaSalle, 2024
Flood zone property value discount	4.4%–13.3%	NBER
Sea level rise property discount	7%	Four Twenty Seven/GeoPhy
Buildings underinsured (Kroll study)	90%	Kroll
CRE default probability increase from physical risk (2050)	+18%	Moody's
Expected loss increase from physical risk (2050)	+20% (~$200M)	Moody's
Phoenix consecutive days ≥100°F (2024)	113 days	NWS
Maricopa County heat deaths (2023)	645	County data
CA FAIR Plan policies (Jan 2026)	~668,000	CA DOI/AM Best
CA FAIR Plan exposure (Jan 2026)	~$724 billion	CA DOI
GRESB participants (2024)	2,200+ ($9T in assets)	GRESB
Investors using GRESB data	150+ ($50T+ in AUM)	GRESB
CRE leaders selecting only resilient buildings by 2030	45%	JLL, 2024

10. Case studies: when climate overlays kill or reshape deals

Hurricane Sandy and CRE repricing (New York/Boston): Academic research (Addoum et al., 2024, Real Estate Economics) found CRE exposed to flood risk in New York traded at a "large, persistent discount" post-Sandy. The discount was driven by higher capitalization rates (risk premia), not building occupancy declines. Notably, Boston CRE also showed persistent price penalties despite being largely spared — pure risk-salience effect. Properties outside FEMA floodplains that were inundated experienced larger price discounts than properties already in flood zones.

LA Fires (January 2025): 16,251+ structures destroyed; insured losses $20–$45 billion; total economic damage $250–$275 billion. State Farm's $7.6 billion in direct losses. CRE within fire footprint: $3.29 billion in property value at risk (Moody's). As of August 2025: only 184 building permits issued of 12,048 destroyed structures (1.5%). FAIR Plan received 5,000+ claims and paid $2.7 billion+. Post-fire, developers face demand-surge pricing, code upgrade requirements, and insurance availability crisis.

Marshall Fire, Boulder County (2021): 1,084 structures destroyed including ~30 commercial structures, a hotel, and a shopping center. $2 billion+ total losses. 67% of homeowners had insufficient insurance. Boulder County expanded wildfire mitigation codes to Zone 2 post-fire.

Developer behavioral response: RREAF Holdings (Southeast U.S. developer) reports walking away from deals "purely because the insurance math didn't work." Rising premiums have made climate resilience "a measurable financial factor rather than a conceptual ESG issue." Fisher & Rutledge (2021) found across 19 storms since 1988, CRE value impacts peaked 3 years after landfall and took 2 additional years to dissipate. Apartment and retail recovered fastest; office, hotel, and industrial lagged.

FEMA BRIC cancellation (2025): The Trump administration canceled FEMA's BRIC program, which had distributed $4.5 billion in grants to ~2,000 resilience projects over four years. Bisnow reported the cancellation "could endanger billions of dollars of commercial real estate assets" by eliminating federal co-investment in climate adaptation infrastructure that CRE projects depend on.

Sanibel Island/Fort Myers Beach (post-Ian): Hurricane Ian pushed 12 feet of storm surge across Sanibel. Since 2000, Florida has received 36 presidential disaster declarations. Damages from the last 7 years alone exceeded $300 billion (NOAA). The feasibility question facing developers in these markets: Is this still the highest and best use for the location? (Altus Group)

Conclusion: climate overlay is the new zoning

The data assembled here points to a single organizing conclusion: climate risk has become the functional equivalent of a zoning constraint for CRE developers. It dictates what can be built (building codes), what can be insured (carrier availability), what can be financed (lender requirements), and what can be valued (cap rate risk premia). The gap between FEMA-mapped risk and actual risk — 68% more properties at substantial flood risk than officially designated — means that relying solely on traditional flood zone maps is a material underwriting failure. The insurance market is performing the repricing that regulation has been slow to accomplish: State Farm's withdrawal from 72,000 California policies, Florida's $5,376 average premium, and J.P. Morgan's projection of 80% CRE premium increases by 2030 are market signals that override any regulatory ambiguity. For CRE feasibility consultants, lenders, and investors, the imperative is clear: climate overlay analysis is no longer a supplementary ESG exercise — it is the threshold feasibility test.

Sources:

• FEMA — Risk Rating 2.0: Equity in Action (2023)

• First Street Foundation — Risk Factor Methodology (2024)

• CoreLogic / Cotality — 2024 Wildfire Risk Report & Climate Risk Analytics

• Swiss Re Institute — Natural Catastrophes in 2024, sigma 1/2025

• Munich Re — Natural Disaster Losses in 2024

• Deloitte Center for Financial Services — Commercial Building Insurance Cost Projections (2024)

• ULI & LaSalle Investment Management — Physical Climate Risks and Underwriting Practices (2024)

• NAIOP Research Foundation — Extreme Weather and CRE Development (2024)

• California Department of Insurance — Sustainable Insurance Strategy & FAIR Plan Market Data (2025)

• EPA — Reducing Urban Heat Islands; Heat Island Impacts (2024)

• High-Value Sources for Future Use

• JLL — Climate Risk and CRE Insurance Cost Projections

• Moody's — RMS Catastrophe Modeling; Climate On Demand; CMBS Physical Risk Analysis

• GRESB — Annual Real Estate Benchmark (2024)

• NIBS — Natural Hazard Mitigation Saves Study

• Headwaters Economics — Wildfire Construction Cost Analysis

• FHFA — Advisory Bulletin on Climate Risk (May 2024)

• MSCI Real Assets — Insurance Cost as % of NOI Study