
Home insurance premiums are calculated based on the particulars of the house, including its square footage, when it was built, what it is made of, and its rebuild cost. Mistakes in these answers could change the premium or even disqualify the home from coverage with some insurers. Square footage discrepancies can occur due to honest mistakes, complex layouts, renovations, or measurement errors. In some cases, sellers may also knowingly misrepresent the square footage to increase the value of their home. Homeowners should carefully review their insurance policies to identify any errors or discrepancies and take corrective actions to ensure accurate coverage and avoid potential financial losses.
| Characteristics | Values |
|---|---|
| Reasons for discrepancies | Honest mistakes, complex layouts, changes or additions to the home, clerical errors, outdated records, measurement errors, conflicts between original plans and permits, etc. |
| Impact on insurance | Incorrect house measurements can affect insurance premiums and coverage. |
| Resolution | Contact the relevant authority (MLS, local assessment department, insurance company, etc.) to correct the discrepancy. Consider hiring a professional appraiser to assess the square footage. |
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What You'll Learn

Home insurance premiums are based on square footage
Mistakes in these answers could result in a change in your premium or even disqualify your home from coverage with certain insurers. For example, older homes with aluminum wiring are at a much higher risk of fire and may be subject to higher premiums. Similarly, the square footage of your home can significantly impact your premium as it is one of the most important factors in determining your home's value. A larger home will typically require a higher premium as it will cost more to rebuild in the event of a total loss.
It is important to provide accurate information about your home's square footage to avoid issues with your insurance coverage. While it is uncommon to have an exact answer, as long as you are within 100 square feet of the actual size, you should not encounter any problems. If you are unsure of the exact square footage, you may need to measure it yourself or hire a professional appraiser.
In some cases, insurance companies may dispute the square footage of your home, claiming that it differs from an "online source" or their records. If you encounter such a situation, you can offer to let them measure your home themselves or provide recent appraisals or assessments to support your claim. It is in your best interest to resolve any discrepancies in square footage to ensure you are paying the correct premium for your home's size.
Additionally, it is worth noting that the replacement cost of your home, which factors in the size or square footage, is different from the purchase price. The replacement cost reflects the current cost of materials and labour needed to rebuild your home, while the purchase price includes the value of the land. Understanding these distinctions is crucial when considering your home insurance coverage and premiums.
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Mistakes in applications can change premiums
Mistakes in applications can change insurance premiums. When applying for home insurance, the insurance company will ask for specific details about the home, including the square footage, the year it was built, the materials used, and any other relevant information. If there are mistakes or inaccuracies in the information provided, it can lead to incorrect calculations of the home's value and risk factors, resulting in changes to the insurance premium.
For example, if the provided square footage of the house is incorrect, it can impact the premium. Most insurance companies base their premiums on the square footage of the home, excluding areas like the garage or basement. Providing inaccurate square footage information, whether intentionally or unintentionally, can lead to discrepancies in the quoted premium. In some cases, insurance companies may rely on external sources or records for square footage information, which may not always be up to date or accurate.
Similarly, the year a house was built and the materials used are crucial factors in determining insurance premiums. Older homes, especially those with outdated wiring or plumbing, may pose a higher risk of fire or water damage. If the provided information about the home's age or materials is inaccurate, the insurance company may offer a premium that does not adequately reflect the actual risk factors.
Mistakes in applications can also occur due to clerical errors, typos, or communication errors. For instance, if a homeowner has made renovations or additions to their home but has not properly permitted them, the square footage on record may differ from the actual living space. It is essential for homeowners to review their insurance policies thoroughly and ensure that all provided information is accurate and up to date. Failure to do so may result in unexpected changes to premiums or even disqualification from coverage with certain insurers.
To avoid issues with incorrect measurements, homeowners can take proactive steps. Before calling for a quote, it is advisable to check the deed or ownership papers for accurate information about the property. When providing measurements, homeowners should include all living spaces, such as closets and storage areas, while excluding unheated garages or unfinished basements, as per standard insurance practices. If there are doubts about the accuracy of public records, homeowners can request their local assessment department to review and update their data.
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Clerical errors or typos can cause discrepancies
Simple measurement errors can also occur during the building, assessment, or appraisal of a property. Different assessors may come up with slightly different measurements, especially for complex layouts. Additionally, there may be conflicts between original plans, additions, and permits obtained for work that may or may not have been completed, leading to incorrect estimations by the assessment office.
It is important for homeowners to verify the square footage of their property, as it can impact their insurance premiums and coverage. If the listed square footage is larger than the actual size, insurance companies may charge higher premiums. On the other hand, if the listed size is significantly smaller, it could affect the rebuild cost and coverage in the event of a total loss.
Homeowners should review their insurance policies thoroughly and notify the relevant authorities of any discrepancies. They can also hire a professional appraiser to assess the square footage and submit this information to the local assessment department for review and correction.
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Home additions or renovations may not be properly recorded
As a result, when you purchased the home, you may not have been aware of these unpermitted changes, and the official records may not accurately reflect the current state of the property. This can lead to discrepancies between the insured value of your home and its actual value, affecting your insurance coverage and premiums.
To address this issue, it is important to consult the house's original blueprints, which depict the house as it was first constructed. If you do not have access to the blueprints, you can try contacting the previous owner, searching city records, or reaching out to the homeowners' association or the original construction company.
Additionally, once you become aware of any unpermitted construction, you are legally obligated to disclose this information to potential buyers. This disclosure should be made on a state-specific disclosure statement and in your real estate listing, clearly indicating any unpermitted areas of the house.
To avoid issues with your homeowner's insurance, it is crucial to ensure that all additions or renovations are properly permitted and documented. This includes keeping records of improvements that increase the value of your home, such as room additions, plumbing or wiring upgrades, and landscaping. By maintaining accurate records, you can help ensure that your homeowner's insurance reflects the true value and measurements of your property.
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Public records may be inaccurate
Secondly, simple measurement errors could occur at various stages, such as with the home builder, assessor, or appraiser, or due to communication errors when information is conveyed to the county assessment office. For example, different measurers might use distinct methods, resulting in slightly different square footage calculations.
Thirdly, older homes that have not been appraised in a long time may have outdated and inaccurate information. Additionally, there may be conflicts between original plans, additions, and the permits obtained, especially if certain permitted additions were never executed. This can lead to incorrect estimations by the assessment office.
Finally, clerical errors, typos, or accidental inclusions of certain spaces in calculations can also contribute to inaccurate public records. To address such inaccuracies, it is advisable to contact the local assessment department to request a review of the data and, if necessary, hire a professional appraiser to assess the square footage for submission to the relevant department.
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Frequently asked questions
Mistakes in the square footage of your home on your insurance policy can occur for several reasons. This may be due to an error in the original plans, a mistake in communication when information is provided to the county assessment office, or a discrepancy between permitted additions and the actual work carried out.
The square footage of your home is one of the factors that determine the value of your home and, consequently, your insurance premium. A larger home will generally attract a higher premium.
You should first contact your local assessment department to request that the data be reviewed. You may be asked to file an appeal or submit a grievance. It may also be helpful to hire a professional appraiser to assess the square footage of your home and submit this to the department for review.
If your insurance company is uncooperative, you may need to demand a third party or the insurance company itself to get the actual measurements. You can also seek legal advice, although this can be costly and messy, with no guarantee of success.
When calling for home insurance quotes, provide accurate details about your home, including the square footage, when it was built, and what it is made of. This will help ensure that the quotes you receive are in line with what you will pay in premiums.


































