The fastest way to get a rough home value is a free online estimate
You can get a ballpark number in minutes using Zillow's Zestimate, Redfin's estimate, or Realtor.com's home value tool. These sites pull public records—your home's size, age, lot, recent sales of similar homes nearby—and run them through an algorithm. The estimate appears instantly and costs nothing.
These tools are useful for a quick check, but they are often off by 5 to 10 percent or more, depending on how much recent sales data exists in your neighborhood. A home in a busy urban market with weekly sales nearby will get a more accurate estimate than a rural property where homes sell once a year. The algorithm also cannot see your kitchen renovation, your roof's actual condition, or the fact that your neighbor's house sold in a divorce and went for less than market.
Use an online estimate as a starting point, not a final answer. If you need to know the value for a loan, insurance, or a major financial decision, move to one of the methods below.
Key Takeaways
- Free online tools like Zillow and Redfin give you a rough estimate in minutes, but they are often off by 5 to 10 percent or more.
- A comparative market analysis from a real estate agent is free and based on actual recent sales of homes like yours, not an algorithm.
- A professional appraisal costs $300 to $500 and is the most accurate method, required by lenders and useful for refinancing or major decisions.
- Your county assessor's value is public record but is usually lower than market value because it is used for property tax, not sale price.
- The method you choose depends on why you need the value—a quick estimate works for curiosity, but a loan or insurance claim requires an appraisal.
Get a free comparative market analysis from a real estate agent
A comparative market analysis (CMA) is a report showing what homes similar to yours sold for in the last 90 days. A real estate agent will prepare one for free because they hope you will list your home with them. The agent pulls actual sale prices from the local MLS (Multiple Listing Service), not an algorithm, and can explain why one comparable home sold higher or lower than another.
To get a CMA, contact two or three agents in your area and ask them to prepare a market analysis. They will visit your home, take photos, note condition and upgrades, and send you a report within a few days. The report shows homes that sold recently, their sale prices, and how they compare to yours in size, age, and location.
The CMA is more reliable than an online estimate because it is based on real transactions, not a formula. The downside is that agents may be motivated to overvalue your home to win your business, so comparing reports from multiple agents helps you spot outliers. If one agent says your home is worth $50,000 more than the others, ask why.
Order a professional appraisal for the most accurate number
A professional appraisal is a detailed report prepared by a licensed appraiser who inspects your home in person, measures rooms, checks the roof and foundation, and compares it to recent sales. The appraiser is bound by professional standards and does not have a financial stake in the outcome, so the appraisal is the most reliable method available.
Appraisals cost between $300 and $500 depending on your home's size and location. You order one through an appraisal management company, which assigns an appraiser in your area. The process takes one to two weeks from order to report. If you are refinancing a mortgage, your lender will order the appraisal and charge you the fee; you do not choose the appraiser.
You need an appraisal if you are refinancing, taking out a home equity loan, settling a divorce, or making a major financial decision based on your home's value. An appraisal is also required if you are contesting your property tax assessment or filing an insurance claim for damage. For simple curiosity about what your home might sell for, an online estimate or CMA is usually enough.
Check your county assessor's value, but understand what it means
Your county assessor assigns a value to your home every year for property tax purposes. This value is public record and you can find it by searching your county assessor's website with your address or parcel number. The assessor's value is free to look up and updated annually.
However, the assessor's value is usually lower than what your home would sell for on the open market. Assessors use a different standard than appraisers—they are valuing the property for tax revenue, not for sale. In many states, the assessed value is deliberately kept below market value by law. A home worth $300,000 on the market might be assessed at $250,000 for tax purposes.
Use the assessor's value as one data point, but do not rely on it alone to know what your home is worth. It is useful for understanding your property tax burden and for spotting errors in the public record (wrong square footage, wrong number of bedrooms), but it is not a market value.
Look at recent sales of homes like yours in your neighborhood
You can do your own research by visiting your county assessor's website or a public records site like Zillow's sold homes or Redfin's sold homes section. Search for homes that sold in the last 90 days in your zip code or neighborhood, then filter by size, age, and condition as close to yours as possible.
Write down the sale prices of the three to five most similar homes. If your home is 2,000 square feet and sold homes nearby range from $280,000 to $320,000, your home is probably in that range. Adjust up if your home has recent upgrades or a better lot; adjust down if it needs work or is smaller.
This method takes more time than an online estimate but gives you a sense of the actual market in your area. It is especially useful if you live in a neighborhood where homes sell frequently and you can find several recent sales to compare.
Understand why your home's value changes
Your home's value moves with the local real estate market, interest rates, and the condition of your home itself. A neighborhood where homes are selling quickly and bidding wars are common will see values rise. A neighborhood where homes sit on the market for months will see values fall. Interest rate changes affect how much buyers can afford to borrow, which affects demand and price.
Your own home's value also depends on condition. A roof that needs replacement in five years will lower the value more than a roof with ten years left. A kitchen from 1985 will lower value more than one updated in the last five years. Major systems—HVAC, plumbing, electrical—matter more than cosmetic updates.
If you are planning to sell, focus on repairs that buyers expect (roof, HVAC, foundation) rather than luxury upgrades. If you are refinancing, an appraisal will capture the current condition and recent market changes, so there is no need to guess.
Decide which method fits your situation
The method you choose depends on why you need the value and how much accuracy matters. If you are curious about your home's worth or thinking about selling in a few years, a free online estimate or CMA is enough. If you are refinancing, taking out a home equity loan, or making a decision that depends on knowing the exact value, order a professional appraisal.
For most people, the best approach is to start with a free online estimate to get a ballpark number, then request a CMA from a local agent if you want more detail. If the number matters financially, pay for an appraisal. The cost is small compared to the cost of making a major decision based on a guess.
Frequently Asked Questions
How often does my home's value change?
Home values shift with the local market, which can move monthly or quarterly depending on how active your area is. Online estimates update when new sales data enters the system, usually monthly. Your county assessor updates the assessed value once a year. If you need the current market value, order an appraisal or get a fresh CMA from an agent.
Can I use an online estimate to refinance my mortgage?
No. Lenders require a professional appraisal ordered through their appraisal management company. The lender will not accept an online estimate, a CMA, or an old appraisal. You will need to pay for a new appraisal as part of the refinance process.
What if my home's assessed value is way too high?
You can file a formal challenge with your county assessor's office, usually called an assessment appeal or tax assessment protest. The process and deadline vary by state and county. Contact your assessor's office to learn the deadline and what documents you need. An appraisal or CMA showing lower comparable sales can support your case.
Is the price my home sold for the same as its current value?
No. Your home's value changes after you buy it based on market conditions, neighborhood changes, and the home's condition. A home that sold for $250,000 five years ago might be worth $280,000 today in a rising market, or $220,000 in a falling market. The sale price is historical; the current value is what it would sell for today.
Do I need to know my home's value for homeowners insurance?
Your insurance company will ask for the replacement cost of your home—what it would cost to rebuild it from scratch—not the market value. These are often different. A home worth $300,000 on the market might cost $350,000 to rebuild if construction costs are high. Tell your insurance agent the square footage and age, and they will estimate replacement cost for you.