The three main ways to find your home's value
Your home's value comes down to what a buyer would pay for it right now. You can find this out three ways: look at what similar homes sold for recently, use an online estimate tool, or hire a professional appraiser. Each method gives you a different level of detail and costs different amounts of money.
The fastest and cheapest route is checking what comparable homes in your neighborhood sold for in the last few months. The most accurate route is hiring an appraiser, who physically inspects your home and charges $300 to $500 for the work. The middle ground is an online estimate, which takes 10 minutes and costs nothing.
Key Takeaways
- Comparable sales (homes like yours that sold recently in your area) give you the most realistic picture because they show actual prices buyers paid.
- Online home value estimates from Zillow, Redfin, or your county assessor are free and instant but can be off by 5 to 20 percent depending on how much recent sales data exists in your area.
- A professional appraiser charges $300 to $500 and inspects your home in person, making their estimate the most reliable for major decisions like refinancing or selling.
- Your county assessor's office has your home's assessed value for tax purposes, which is usually lower than market value and not the same as what your home would sell for.
Checking comparable sales in your neighborhood
The most straightforward method is to look at homes similar to yours that sold in your area within the last three to six months. Real estate agents call these "comps." You want homes that are roughly the same size, age, condition, and location as yours—not a mansion five blocks away or a fixer-upper on a different street.
You can find recent sales through your county assessor's website (search "[your county] assessor" plus "property records" or "sales data"). Most counties post sale prices and dates publicly. You can also search Zillow, Redfin, or Realtor.com and filter by "sold" listings in your neighborhood. Look for at least three to five recent sales to get a sense of the range.
If your home is unusual—a corner lot, a historic property, or something with major recent renovations—comps become harder to find. In that case, you may need to look at a wider area or a longer time period. The fewer recent sales that match your home, the less reliable this method becomes.
Using free online home value estimates
Websites like Zillow (Zestimate), Redfin, and your county assessor all offer free estimates of your home's value. These tools pull data from recent sales, property records, and tax assessments, then run the numbers through an algorithm. You enter your address, and within seconds you get a number.
The speed and cost make these tools useful for a quick check, but they have real limits. Zillow's own data shows their estimates are within 5 percent of actual sale price about half the time—meaning the other half of the time they are off by more. The estimate can be off by 10, 15, or even 20 percent depending on how much recent sales data exists in your area. Rural areas and neighborhoods with few recent sales tend to have less accurate estimates.
These tools also cannot account for things an appraiser would notice: the condition of your roof, whether your foundation has cracks, if your kitchen is outdated, or if you have a view. They work best in neighborhoods where homes are similar and sell frequently. Use them as a starting point, not as your final answer.
Hiring a professional appraiser
An appraiser is a licensed professional who inspects your home and produces a formal written estimate of its value. They look at the structure, systems (plumbing, electrical, HVAC), condition, and recent comparable sales. Their report is detailed enough to be used by banks for refinancing or by courts in disputes.
You can find appraisers through your state's appraisal board (search "[your state] appraisal board" online), through a local real estate agent, or through services like the American Society of Appraisers. Expect to pay $300 to $500 for a residential appraisal, though prices vary by region and home size. The appraisal takes a few days to a week to complete after the inspection.
You need an appraisal if you are refinancing a mortgage, contesting your property tax assessment, or settling an estate. For a simple "what is my home worth" question, an appraisal is usually overkill unless your home is unusual or you need a number you can defend in writing.
Understanding your county assessor's value
Your county assessor assigns a value to your home for property tax purposes. This number appears on your property tax bill and in public records. It is not the same as what your home would sell for on the open market.
Assessed values are usually lower than market value because assessors use different methods and update values on a schedule (often every three to five years in many states). A home worth $400,000 on the market might be assessed at $300,000 for tax purposes. You can find your assessed value by searching your county assessor's website with your address.
If you think your assessed value is too high and it is raising your property taxes unfairly, you can file a formal challenge called an assessment appeal or tax assessment protest. The process and deadlines vary by state and county. Your assessor's office can tell you the deadline and what documents you need to file.
When to use each method
| Method | Cost | Time | Accuracy | Best for |
|---|---|---|---|---|
| Comparable sales | Free | 30 minutes to 2 hours | High (if comps exist) | Getting a realistic range; deciding whether to sell |
| Online estimate | Free | 5 to 10 minutes | Medium (varies by area) | Quick check; curiosity |
| Professional appraisal | $300–$500 | 3 to 7 days | Very high | Refinancing; legal disputes; unusual homes |
| Assessed value | Free | 5 minutes | Low (for market value) | Understanding your tax bill only |
What affects your home's value
Your home's value depends on location, size, age, condition, and what the market is doing right now. A home in a neighborhood with good schools and low crime is worth more than an identical home in a neighborhood with neither. A home with a new roof and updated systems is worth more than one with deferred maintenance. A home in a market where demand is high is worth more than the same home in a market where inventory is high.
Recent major renovations (kitchen, bathroom, roof, HVAC) usually add value, though not dollar-for-dollar. A $50,000 kitchen renovation might add $35,000 to your home's value. Cosmetic updates (paint, landscaping, staging) can help a home sell faster but do not add much to the appraised value. Structural problems, foundation issues, or environmental concerns (flood zone, contamination) reduce value significantly.
Frequently Asked Questions
How often should I check my home's value?
If you are just curious, once a year is plenty. If you are thinking about selling or refinancing, check every few months to watch the trend in your neighborhood. Market values can shift based on interest rates, local job growth, and inventory levels.
Why do different websites give me different values for my home?
Each site uses different data sources, algorithms, and update schedules. Zillow might use one set of recent sales while Redfin uses another. One site might have updated data from last week while another is still using data from two months ago. This is why online estimates are a range, not a fact.
Can I use my home's value to borrow money?
Yes, but the lender will order their own appraisal—they will not take your estimate or an online tool's number. If you want a home equity loan or line of credit, the bank will send an appraiser to confirm the value before they lend you money based on it.
What if my home is in a rural area with few recent sales?
Comparable sales become harder to find, and online estimates become less reliable. In this case, a professional appraisal is your best option if you need an accurate number. An appraiser can look at a wider geographic area and account for unique features of rural properties.
Does my home's assessed value affect what I can sell it for?
No. Assessed value is for taxes only. Your home sells for whatever a buyer will pay, which is usually higher than the assessed value. The assessed value does not limit or determine the market price.