Landlord Insurance for San Antonio Rentals: Why Your Homeowner's Policy Won't Cover a Tenant

The moment your San Antonio home stops being owner-occupied and starts being tenant-occupied, your homeowner's policy — an HO-3 in most cases — is materially the wrong contract. Carriers write HO-3s for owner-occupants. When they find out a tenant is in the house (and they do find out, usually at claim time), they can deny the claim and non-renew the policy. The fix is switching to a dwelling policy, almost always a DP-3, before the lease starts.

This is the single most common insurance mistake I see with first-time landlords in Bexar County: they lease the house, keep paying the old HO-3, and assume they're covered because the premium keeps drafting. They aren't.

Why the HO-3 stops working

An HO-3 (the standard homeowner's form) is underwritten around an owner living in the home. Read your declarations page — there's an occupancy field, and it says owner-occupied. Once a tenant moves in, you've changed the risk: different liability exposure, different loss patterns, different property-in-dwelling. Most carriers exclude losses where the described premises is tenant-occupied and you didn't disclose it. Texas is a non-standard insurance state regulated by the Texas Department of Insurance (TDI), so exact policy language varies, but the exclusion pattern is consistent across the market.

If you're renting the house for a short window while you PCS or relocate for a job, some carriers will endorse the HO-3 for a limited tenant-occupancy period. Ask in writing. Otherwise, replace the policy.

The DP-3 in plain English

Dwelling policies come in three flavors:

• DP-1 — basic form, named perils only, usually pays actual cash value (depreciated). Cheap and thin. Fine for a burned-out flip, not for a rental you care about.
• DP-2 — broad form, named perils, replacement cost available. Middle ground.
• DP-3 — special form, open perils on the dwelling (covers anything not specifically excluded), replacement cost. This is the standard rental policy for a single-family home in San Antonio.

A properly written DP-3 for a Bexar County rental should include:

• Dwelling (Coverage A) at replacement cost, not market value. Your rebuild cost has nothing to do with your BCAD appraised value or your Zillow number. Ask the agent to run a replacement-cost estimator.
• Other structures (Coverage B) — detached garage, casita, storage shed, fencing. Fence claims after storms are common on the north side.
• Fair rental value / loss of rents — pays you the rent for the months the property is uninhabitable after a covered loss. Typically 12 months. Non-negotiable for a landlord; a kitchen fire can knock a house out for six months easily.
• Landlord liability — $300,000 minimum, $500,000 better. Cheap coverage relative to what a slip-and-fall plaintiff will demand.
• Limited personal property — for appliances, lawn equipment, and anything you leave at the property. The tenant's stuff is not covered here.
• Ordinance or law — critical for older homes in Southtown (78204/78210), Beacon Hill, Monte Vista, and the near West Side, where a rebuild triggers current code upgrades that the base dwelling limit won't fund.

Expect the DP-3 premium to run modestly higher than the HO-3 it replaces — you're picking up loss-of-rents and landlord liability, but losing the personal property coverage that inflated the HO-3.

What a DP-3 does not cover

• Flood. Never covered. San Antonio has real flood exposure along Leon Creek, Salado Creek, Olmos Basin, and pockets of the near-South Side and Westside. If the property is in a FEMA Special Flood Hazard Area, you need an NFIP policy — and if you have a mortgage, the lender will require it. Check the address on the FEMA Flood Map Service Center before you decide.
• Earth movement. Foundation issues in South Texas clay are a maintenance problem, not an insurance problem.
• Tenant's belongings. The tenant's furniture, electronics, and clothing are theirs to insure.
• Tenant negligence causing their own loss. If they burn a pot on the stove and lose their TV, that's on them.
• Wear, tear, and gradual damage. The AC compressor that finally quits after 14 San Antonio summers is not a claim.

Windstorm/hail is usually included on inland Bexar County DP-3s, unlike the coast where TWIA is separate. Hail is the loss driver in San Antonio — a single spring supercell can total roofs across half a ZIP code.

Require renter's insurance in the lease

The DP-3 protects your building and your liability. It does nothing for the tenant, and — importantly — it doesn't protect you when the tenant's dog bites a guest or their space heater starts a fire and their family sues both of you.

Add a renter's insurance requirement to the lease. Reasonable terms:

• Minimum $100,000 personal liability on the tenant's HO-4 policy.
• Landlord named as additional interest (not additional insured — that's a different thing and most carriers won't do it on an HO-4). Additional interest gets you notified if the policy lapses.
• Proof of coverage before move-in and at each renewal.
• Continuous coverage during the lease term, with lapse treated as a lease default.

HO-4 policies in San Antonio typically run $12–$25 a month depending on limits and deductible. It's not a hardship, and it filters out tenants who won't or can't get approved for a basic policy — a useful screening signal alongside the criteria in your standard application.

Umbrella coverage above the DP-3

If you own more than one rental, or you have meaningful assets outside the rental (retirement accounts, a primary home, a business), a personal umbrella of $1M–$2M sitting above the DP-3's liability limit is the cheapest real protection you can buy. Some carriers require you to keep all underlying policies with them to write the umbrella; some don't. Ask.

What most people get wrong

• Keeping the HO-3 in place after the tenant moves in. Silent non-coverage. Switch to a DP-3 before the lease start date, not after.
• Insuring the dwelling at market value or tax value instead of replacement cost. BCAD's number and your rebuild cost are unrelated. Underinsuring triggers coinsurance penalties on partial losses — you can be 80% covered on paper and get paid 60% of a claim.
• Skipping loss-of-rents coverage to save $40 a year. A single covered fire or major water loss can put the house out of service for 4–8 months. Loss of rents is the coverage that keeps your mortgage current while the rebuild happens.
• Assuming flood is included. It never is. Pull the FEMA flood map for the exact address; if you're anywhere near Salado or Leon Creek, get NFIP.
• Naming yourself as additional insured on the tenant's HO-4. Wrong endorsement. Ask for additional interest so you're notified on cancellation.
• Not disclosing the tenant's dog breed to the carrier. Several Texas carriers exclude specific breeds. If a claim traces to an undisclosed dog, expect denial. Ask before you accept the pet.
• Letting the DP-3 sit for years without a replacement-cost refresh. Rebuild costs in San Antonio moved sharply post-2020 with lumber and labor. A dwelling limit set in 2019 is likely 20–30% short today.

Before you renew or write a new policy

Walk through the checklist with an agent who writes real landlord business in Texas — not the same 800 number that wrote your homeowner's policy in 2014:

• Correct form (DP-3, not DP-1)
• Replacement cost on the dwelling, refreshed within the last two years
• Loss of rents at 12 months
• Landlord liability $300K–$500K, umbrella above if warranted
• Ordinance or law endorsement, especially for pre-1980 homes
• Flood policy if the address requires it
• Renter's insurance clause in the lease with proof-of-coverage tracking

Once the insurance is right, the rest of the operation gets easier. If you're setting up a rental from scratch, you can list it free at HomeFinder's /list-your-home, and if you'd rather hand the whole thing to a pro, browse local property managers and landlord-focused agents at /agents. More landlord guides — screening, pricing, deposits, evictions — live at /resources.