Reviewed by AZ Insurance Agency, licensed in Texas, serving Houston since 2003.

The single most important number on your homeowners policy is the one most people never check: Coverage A, your dwelling limit. If it was set when you bought the home and never updated, there is a real chance it no longer covers what it would actually cost to rebuild your house today. In Houston, where construction costs have climbed hard since 2021, that gap is exactly what turns a covered loss into a financial disaster. Understanding what your homeowners policy actually covers and does not cover starts with getting this one number right.

Short answer: Coverage A should equal your home's full rebuild cost, not its sale price or your mortgage balance. In Texas, residential construction runs roughly $145 to $270 per square foot depending on the home type, finishes, and Houston suburb. If your limit was set years ago and never revised, you may be underinsured by a meaningful margin. Call us at 713-777-2886 or visit aztexas.com to review your Coverage A before your next renewal.

Key Takeaways

• Coverage A is your dwelling limit, and every other coverage on the policy is calculated as a percentage of it, so getting it wrong makes every other number wrong too.

• Rebuild cost, market value, and mortgage balance are three different numbers. Only rebuild cost belongs in your Coverage A limit.

• Texas residential construction runs about $145 to $270 per square foot in 2025, and costs rose sharply after 2021, leaving homes insured at older estimates underinsured.

• Replacement cost coverage pays to rebuild at today's prices; actual cash value subtracts depreciation and can leave you covering a large share of the bill yourself.

• Extended replacement cost pays a set percentage above your limit, and guaranteed replacement cost pays whatever the rebuild costs, protecting you when a major storm drives a demand surge.

• An inflation guard endorsement nudges your limit up each year so your coverage does not quietly fall behind rising construction costs.

• Most Texas carriers require you to insure to at least 80 percent of replacement cost, and some require 100 percent, or your claim payout can be reduced.

• A 30 minute coverage review at renewal is the cheapest way to catch an underinsurance gap before a claim exposes it.

What Is Coverage A?

Coverage A is the dwelling coverage portion of your homeowners policy. According to the Texas Department of Insurance, dwelling coverage pays if your house is damaged or destroyed by something your policy covers, such as fire, storm, or explosion.

This is the most important number on your policy declarations page. Every other coverage amount, your detached structures, your contents, and your temporary housing limit, is typically calculated as a percentage of Coverage A. Get Coverage A right and the rest tends to fall into place. Get it wrong and every other number is wrong too.

Replacement Cost vs Actual Cash Value

Texas homeowners policies pay claims in one of two ways.

Replacement cost coverage pays to repair or replace your home at current prices. If your roof costs $15,000 to replace today, a replacement cost policy covers that full amount minus your deductible.

Actual cash value coverage pays replacement cost minus depreciation. That same $15,000 roof might pay out $9,000 after factoring in age and wear. You cover the $6,000 gap yourself. This distinction matters most on older components like roofs, which is why our breakdown of actual cash value vs replacement cost coverage in Texas is worth reading alongside this guide.

The Texas Department of Insurance advises homeowners to confirm they have replacement cost coverage to be fully protected.

Rebuild Cost vs Market Value vs Mortgage Balance

These three numbers are not the same, and confusing them is the most common reason homeowners end up underinsured.

Market value is what a buyer would pay for your home today. It includes the land, the neighborhood, school district appeal, and comparable sales. Land cannot burn down. It should never factor into your Coverage A limit.

Mortgage balance is what you owe your lender. A bank may only require you to carry enough insurance to cover their loan balance, but if your home is a total loss and rebuilding costs more than the loan balance, you absorb the gap personally.

Rebuild cost is what it actually costs to tear down what remains and reconstruct the same home from scratch, including labor, materials, permits, and debris removal. This is the only figure that belongs in your Coverage A limit.

The Insurance Information Institute states clearly that the price you paid for your home, or the current market price, may be more or less than the cost to rebuild.

How Construction Inflation Creates an Underinsurance Gap

Houston homeowners who set their Coverage A limit three or more years ago face a real problem. Construction costs across Texas rose at a historically fast pace starting in 2021. Residential construction inflation peaked in 2022 and has continued upward at a more moderate pace since, but the cumulative increase means homes insured at pre 2021 rebuild estimates are frequently underinsured by a meaningful margin.

This matters most when a widespread event like a major storm hits. When thousands of homes need repairs simultaneously, contractor availability drops and material costs spike. The Insurance Information Institute calls this a demand surge and notes that it can push rebuild costs well above what standard policy limits would cover. Preparing for that surge is part of getting your home ready before hurricane season.

A policy limit that looked adequate in 2020 may no longer cover the actual cost to rebuild in 2026, especially in Houston suburbs like Katy, Cypress, and Pearland where residential construction demand has remained strong.

How to Calculate Your Dwelling Coverage Amount

The Insurance Information Institute recommends a straightforward starting point: multiply your home's total square footage by the local cost per square foot to build.

For Houston and surrounding communities, residential construction costs in 2025 run approximately:

• Standard construction: $145 to $210 per square foot statewide

• Mid range builds: $185 to $250 per square foot

• High end or custom homes: $250 to $400 or more per square foot

A 2,000 square foot standard home in a Houston suburb might cost $290,000 to $420,000 to rebuild from the ground up. If your Coverage A sits at $200,000, that gap is your problem to solve after a total loss.

Other factors that affect rebuild cost include:

• Exterior wall type: brick, wood frame, or stone veneer

• Roof material and pitch

• Number of bathrooms

• Custom finishes, fireplaces, or specialty features

• Local permit fees and code requirements

Your insurer may offer a replacement cost estimator tool. Independent insurance agents can also run estimates using cost per square foot data from local builders associations. The Texas Department of Insurance recommends checking with your agent to verify the limit reflects current local construction costs. When you request a review, it helps to have the information a homeowners quote requires ready so the estimate is accurate.

Coverage B, C, and D: How They Tie to Coverage A

Most standard Texas homeowners policies set Coverages B, C, and D as percentages of your Coverage A dwelling limit. Raise Coverage A and these adjust upward. Keep Coverage A too low and every supporting coverage is also too low.

Source: Coverage A method from TDI and III.org; Coverage C range from III.org (50 to 70%); Coverage D range from TDI (10 to 20%).

On a home insured for $350,000, the math works like this: your contents could be covered up to $175,000 to $245,000, your detached garage and fence up to roughly $35,000, and your temporary housing costs up to $35,000 to $70,000. Underinsure the dwelling and all those numbers shrink proportionally.

Extended Replacement Cost and Guaranteed Replacement Cost

Even a carefully calculated Coverage A limit can fall short after a major disaster. Two endorsements exist specifically to bridge that gap.

Extended replacement cost pays a set percentage above your dwelling limit if rebuild costs exceed your coverage amount. Across insurers, this typically ranges from 10% to 50% above your stated Coverage A. Example: if your home is insured for $400,000 with 25% extended replacement cost, your insurer can pay up to $500,000 to rebuild.

Guaranteed replacement cost has no percentage cap. Your insurer pays whatever it costs to rebuild your home to its pre loss condition, regardless of the final price. The Insurance Information Institute notes this option is available through a limited number of insurance companies, though it offers the broadest protection.

Extended replacement cost is a practical middle ground for most Houston homeowners. Ask your agent what percentage options are available on your policy and what the added premium looks like.

Inflation Guard Endorsement

The inflation guard endorsement automatically adjusts your Coverage A limit each year at renewal to reflect current construction cost trends in your area. The Insurance Information Institute describes it as an endorsement that automatically adjusts the dwelling limit to reflect current construction costs in your area when you renew your insurance.

This does not replace the need to review your coverage manually, particularly after a major renovation or when local construction costs jump significantly. But it does prevent your coverage from quietly falling behind every year while you are not looking.

Check your declarations page or ask your agent whether your current policy includes inflation guard protection.

How to Review Your Coverage Today

A coverage review takes less than 30 minutes and can prevent a very expensive surprise after a claim. Here is what to check:

1. Pull your declarations page and find your Coverage A limit.

2. Estimate your home's current rebuild cost: square footage multiplied by the current cost per square foot in your area.

3. Compare the two numbers. If Coverage A is more than 15% to 20% below estimated rebuild cost, you are likely underinsured.

4. Ask your agent about extended replacement cost options and whether inflation guard is on your policy.

5. Update your coverage if you have added a room, renovated a kitchen, or made any other improvement since your last review.

The Texas Department of Insurance recommends that homeowners make sure their policy limits are high enough to cover the full cost of rebuilding, not just the mortgage balance. Most Texas carriers require insuring to at least 80% of replacement cost. Some require 100%. Because roof age can quietly shift your coverage from replacement cost to actual cash value, it is worth reading how roof age affects Texas home insurance and how Texas storm deductibles can change what you actually collect after a claim.

If you want a second set of eyes on your current Coverage A, the team at AZ Insurance Agency has been helping Houston and Dallas homeowners review their policies since 2003. We are bilingual, with 15 offices across Houston and Dallas. Call us at 713-777-2886 or visit aztexas.com/homeowners-insurance to request a no cost coverage review.

FAQ

Q: Should my Coverage A equal my home's market value?

No. Market value includes your land and factors like school district and neighborhood demand that have nothing to do with rebuilding a structure. Coverage A should reflect your home's rebuild cost only. In many Houston neighborhoods, rebuild cost is lower than market value. In others, it can be close or exceed it. Using the wrong number in either direction leaves you with inaccurate coverage.

Q: What happens if my Coverage A is too low and I have a total loss?

You would receive your policy's Coverage A limit and be responsible for the remaining rebuild costs out of pocket. The Texas Department of Insurance notes that if your coverage limit is not high enough to rebuild, you pay the difference yourself. On a large claim, this can be a six figure gap.

Q: What is an inflation guard and do I need it?

An inflation guard endorsement automatically increases your Coverage A limit at each renewal to track local construction cost trends. It reduces the risk that your coverage quietly falls behind rising costs between reviews. Most insurers offer it as an inexpensive add on. Given sustained construction cost increases in Texas, it is worth adding if you do not already have it.

Q: What is the difference between extended replacement cost and guaranteed replacement cost?

Extended replacement cost pays a set percentage above your dwelling limit, typically 10% to 50% extra. Guaranteed replacement cost pays whatever the rebuild actually costs, with no percentage cap. Guaranteed replacement cost provides more protection but is offered by fewer insurance companies. Your agent can tell you what is available in Texas.

Q: How often should I review my Coverage A?

At minimum, review it at each annual renewal. Also review it immediately after any renovation that adds square footage or significantly upgrades finishes, and after any major local event that drives up construction demand. If you have not reviewed Coverage A in the last two to three years, do it now given how much construction costs have moved since 2021.

Related Articles

• What does homeowners insurance cover and not cover

• Actual cash value vs replacement cost in Texas

• Roof age and Texas home insurance

• Texas storm deductible explained