You don't necessarily need separate policies for each multifamily building. A blanket or portfolio policy can cover multiple properties under one policy, typically saving 10–20% on premiums. However, lender requirements, geographic risk concentration (especially in hail-prone Texas), and your total insured value all affect which approach is best. Most Texas investors with 3+ buildings benefit from a portfolio policy with proper per-location scheduling.
Portfolio Policy vs. Individual Policies: The Core Difference
When you own multiple multifamily buildings, you have two fundamental insurance structures to choose from. Understanding the mechanics of each is critical before you make a decision.
Individual Policies (One Policy per Building)
Each property gets its own standalone commercial property insurance policy with its own:
- Coverage limits — tailored to each building's replacement cost
- Deductibles — set per-property, often higher for wind/hail in Texas
- Premium — rated individually based on building age, construction, location
- Policy period — may have different renewal dates
This structure is straightforward but creates administrative overhead. With 5 buildings, you're managing 5 renewals, 5 invoices, and potentially 5 different carriers.
Portfolio (Blanket) Policy
A single master policy covers all your properties. Key features:
- Blanket limit — one aggregate limit across all buildings (or per-location sub-limits)
- Scheduled properties — each building is listed with its own insured value
- Single deductible structure — consistent across the portfolio
- One renewal — simplifies administration dramatically
- Volume pricing — carriers reward larger total insured values (TIV)
Source: NAIC Commercial Lines Market Report, 2025
Cost Comparison: How Much Can You Save?
The financial case for portfolio policies is compelling once you reach a certain scale. Here's what real-world data shows:
| Factor | Individual Policies | Portfolio Policy |
|---|---|---|
| Premium per $100 of TIV | $0.45–$0.85 | $0.35–$0.70 |
| Average savings | Baseline | 10–20% lower |
| Admin cost (broker/internal) | $200–$500/property/year | $300–$600 total/year |
| Wind/hail deductible (Texas) | 2–5% per building | 2–5% per building or per occurrence |
| Minimum TIV requirement | None | $3M–$5M typically |
| Ease of adding properties | New policy each time | Endorsement to existing policy |
Sources: Insurance Information Institute 2025 Commercial Property Report; IBHS Commercial Underwriting Data 2025
Example: 4-Building Texas Portfolio
Consider a Texas investor with four 20-unit apartment buildings valued at $2.5M each ($10M total):
- Individual policies: ~$56,000/year total ($14,000 avg. per building)
- Portfolio policy: ~$46,000/year (18% savings)
- Annual savings: $10,000 — plus 15–20 fewer hours of admin work
Blanket Coverage: How It Actually Works
The term "blanket coverage" is often misunderstood. Here's how it operates in practice:
Agreed Amount vs. Blanket Limit
- Scheduled blanket: Each property has a stated value, but the total limit is shared. If Building A suffers a $2M loss but was insured for $1.5M, the blanket can cover the excess—up to the total policy limit.
- Agreed amount: Waives the coinsurance penalty. Your carrier agrees your stated values are adequate, so you won't be penalized at claim time if a building was slightly undervalued.
This flexibility is one of the biggest advantages. Individual policies enforce strict per-building limits, and an underinsured building means a reduced payout. A blanket policy provides a built-in buffer.
What Blanket Coverage Typically Includes
- Building structure and attached fixtures
- Business personal property across locations
- Loss of rental income / business interruption
- Ordinance or law coverage (code upgrades after partial loss)
- Debris removal and preservation of property
What It Usually Excludes
- Flood (requires separate NFIP or private flood policy)
- Earthquake (rare concern in Texas, but available)
- Named windstorm on coastal properties (may require TWIA)
- Equipment breakdown (available as endorsement)
Texas-Specific Considerations
Texas has unique insurance dynamics that directly affect your portfolio vs. individual policy decision.
Wind and Hail Exposure
Texas leads the nation in insured hail losses. According to the Insurance Information Institute, Texas accounted for $1.2 billion in annual hail claims from 2018–2023, more than any other state.
- Dallas–Fort Worth: "Hail Alley" — expect 2–5% wind/hail deductibles regardless of policy structure
- Gulf Coast (Houston, Corpus Christi): Named windstorm may require Texas Windstorm Insurance Association (TWIA) coverage
- Central/West Texas: Generally more favorable rates; portfolio policies here get best pricing
Source: Insurance Information Institute, 2024 Fact Sheet
Geographic Diversification Advantage
If your portfolio spans multiple Texas regions—say, properties in Austin, Dallas, and San Antonio—a portfolio policy can benefit from geographic risk diversification. Carriers view this favorably because a single hailstorm is unlikely to hit all three metros simultaneously.
Conversely, if all your buildings are in the same ZIP code, a portfolio policy concentrates risk and may not yield as much savings.
Texas Department of Insurance (TDI) Regulations
- Texas is a file-and-use state — carriers can implement rates quickly, which means more pricing flexibility for portfolio deals
- Commercial property policies are largely unregulated on rate, giving carriers freedom to offer competitive portfolio pricing
- TDI requires all commercial property policies to clearly schedule each covered location, even under blanket coverage
When Individual Policies Make More Sense
Portfolio policies aren't always the right choice. Consider staying with individual policies when:
- Different lenders require it: Some CMBS or agency lenders mandate standalone policies for each collateral property
- Properties have vastly different risk profiles: A new Class A building and a 1960s value-add project may get better rates separately
- Total insured value is below $3M: Most carriers won't write blanket policies below this threshold
- You're selling properties soon: Extracting a building from a blanket policy mid-term can be complex
- High-risk coastal properties: Mixing TWIA-required coastal buildings with inland properties can complicate blanket structures
Decision Framework: Which Structure Is Right for You?
| Your Situation | Recommended Approach |
|---|---|
| 1–2 buildings, same market | Individual policies (simpler) |
| 3–5 buildings, TIV over $5M | Portfolio policy (sweet spot for savings) |
| 5+ buildings, multiple Texas metros | Portfolio policy with geographic diversification benefits |
| Mix of coastal + inland properties | Split: inland portfolio + separate coastal/TWIA policies |
| Different lenders per property | Check lender requirements first — may need individual |
| Actively buying/selling | Individual policies for flexibility |
How Texas Property Risk Handles Multi-Building Insurance
At Texas Property Risk, we specialize in commercial property insurance for Texas multifamily investors. Our approach:
- Portfolio analysis: We evaluate whether blanket or individual policies optimize your total cost of risk
- A-rated carriers only: Every policy is placed with carriers rated A- or better by AM Best
- Integrated property management: When you insure through us, you get a free AI property manager built on Buildium — giving you insurance + operations under one roof
- Texas-focused: We understand TWIA, TDI regulations, and regional hail exposure because Texas commercial property is all we do
Frequently Asked Questions
Can I combine all my multifamily buildings under one insurance policy?
Yes, a blanket or portfolio policy can cover multiple multifamily buildings under a single policy. This approach typically saves 10–20% on total premiums compared to individual policies and simplifies administration. However, eligibility depends on factors like property locations, total insured value, and carrier requirements.
What is the main risk of a blanket insurance policy for multiple properties?
The main risk is aggregate limit exposure. If a single catastrophic event (such as a hurricane) damages multiple properties on the same blanket policy, you may exhaust your aggregate limit. This is especially relevant in Texas where wind and hail events can affect a wide geographic area. Working with a broker who understands portfolio risk concentration is essential.
Do lenders require separate insurance policies for each building?
Most lenders accept blanket policies as long as each property is scheduled (individually listed) with adequate coverage amounts. However, some lenders—particularly those with CMBS loans—may require standalone policies. Always confirm requirements with your lender before switching to a portfolio policy.
How does Texas wind and hail exposure affect multifamily portfolio insurance?
Texas has the highest hail-related insurance losses in the U.S., averaging $1.2 billion annually. Carriers assess wind/hail exposure by ZIP code, and properties in North Texas (Dallas–Fort Worth) and Gulf Coast regions face higher deductibles—often 2–5% of insured value. Portfolio policies that spread risk across diverse geographies may receive better wind/hail terms.
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