Your Home Doesn't Have Just One Value - Assessed vs Appraisal vs Market vs Insurance vs AVM

Let's say Zillow puts your home at $725,000. Your town assesses it at $680,000. Your insurance company says it would cost $850,000 to rebuild. And the appraiser for your buyer's lender comes in at $710,000.

Which number is right? Quite possibly all of them.

In more than 25 years of selling homes on the North Shore, this is one of the most common points of confusion I see. Homeowners reasonably assume there's one official figure somewhere that says what their house is worth. There isn't. Different people calculate value for different reasons, using different methods, and sometimes as of different dates. Once you know which question each number is answering, a lot of the confusion goes away, and you're far less likely to make an expensive decision based on the wrong one.

Market value: what would a buyer actually pay?

Market value is the price a property would most likely bring in an open, competitive market under normal conditions. Fannie Mae's definition boils down to the most probable sale price when both buyer and seller are informed, acting prudently, reasonably motivated, and not under unusual pressure.

This is the number most people mean when they ask, "What's my house worth?" But market value isn't printed on a certificate. It has to be estimated from what's happening around you: recent comparable sales, what's under agreement right now, what you'd be competing against, your location and lot, the size and layout, condition and updates, current interest rates, and how active buyers are in your particular corner of Essex County.

And in the end, the market gets a vote. If several qualified buyers are willing to pay around $750,000 for a home, that's strong evidence its market value is right around there. If you'd like to see where your own home likely falls, a free North Shore home valuation is a good place to start.

Appraised value: a professional opinion of market value

Here's where the terminology gets slippery. A mortgage appraisal isn't a separate kind of value. The appraiser is developing a professional opinion of market value, as of a specific date, for a specific purpose: helping the lender evaluate the property it's lending against.

That distinction matters more than people realize. Picture a home listed at $575,000. Strong interest leads to a $600,000 offer, and the seller accepts. Then the lender's appraisal comes back at $550,000.

Does that mean the house is "really" only worth $550,000? Not necessarily. The $600,000 contract is real evidence of what a buyer was willing to pay and a seller was willing to accept. The $550,000 figure is one appraiser's opinion based on the sales data they analyzed, and in a fast-moving market, closed sales can lag behind what buyers are paying today.

Where the appraisal carries real weight is financing, because lenders use it to decide how much they'll lend. A low appraisal can change the math for a buyer even when it doesn't change what the market is doing. If you're buying and want to understand how an appraisal gap could affect your offer, that's exactly the kind of thing we walk through in a buyer consultation.

Assessed value: your town's number for property taxes

Your assessed value exists for one reason: property taxation. Massachusetts law requires local assessors to value property at its full and fair cash value as of January 1 each year.

To do that for every property in town, assessors use mass appraisal. They apply standardized methods and market data to large groups of homes so values stay consistent, rather than doing the kind of individual, walk-through appraisal a lender orders. It's a sensible system for fairness across a whole community, but it isn't built to tell you what your particular home would sell for this spring.

Timing matters too. Markets can move faster than assessment cycles, so an assessment can trail current conditions in either direction. Your assessment is useful information. It just isn't a substitute for a current market analysis if you're deciding whether and how to sell. If you believe your assessment is off, your local assessor's office can explain the abatement process and deadlines for your city or town.

Insurance replacement cost: what would it take to rebuild?

This is the one that surprises people most. Your insurance replacement cost can land well above or well below your market value, because your insurer isn't asking what someone would pay for your house and land. It's asking what it would cost to rebuild the structure after a covered loss, using today's labor and materials, and accounting for things like demolition, debris removal, construction type, finishes, and current building requirements.

The Massachusetts Division of Insurance is direct about this. It tells homeowners not to use their sale price, tax assessment, or the mortgage company's valuation to set replacement coverage, since all of those can differ greatly from construction costs. The Division also points out that land and foundation aren't covered by the policy, so they don't factor into a settlement.

The reverse happens as well. A small older house on a very desirable waterfront lot might have a market value far above what it would cost to rebuild the building itself, because most of that value is in the land.

Actual cash value: replacement cost minus depreciation

You'll hear "actual cash value," or ACV, mostly when insurance claims come up. ACV generally takes depreciation into account. If a component of your home would cost $20,000 to replace today but is old and well worn, its replacement cost is $20,000 while its actual cash value may be considerably less.

That gap can be significant after a claim, so it's worth knowing whether your policy pays replacement cost, actual cash value, or a mix depending on what's damaged. Your insurance agent is the right person to confirm that for your specific policy.

Fair market value for estate, probate, and tax purposes

A different valuation often comes into play when someone passes away or property changes hands for tax reasons. The IRS generally defines fair market value as the price at which property would change hands between a willing buyer and a willing seller, neither being compelled to act and both having reasonable knowledge of the relevant facts.

For an estate, the value usually has to be established as of a particular date, often the date of death. That date matters a great deal. If a family inherited a North Shore home several years ago, what it's worth today may not be the figure that matters for the estate. Because values can shift substantially over a few years, a retrospective appraisal is sometimes needed to establish what a property was worth on an earlier date.

Comparative market analysis: how a REALTOR® estimates value

A comparative market analysis, or CMA, is what real estate professionals use to help an owner decide on a listing strategy. A good one goes well beyond pulling three nearby sales. It looks at recent closings, pending sales, active competition, listings that expired or were withdrawn, days on market, inventory, condition, location differences, and the features local buyers are responding to right now.

A CMA is not an appraisal, and it has a different job. When I sit down with a seller, I'm not only asking what similar homes sold for six months ago. I'm asking how today's buyers are likely to respond if we put this home on the market now, and what pricing strategy gives the seller the best chance of reaching their goals. Those questions are related, but they're not the same. Once you have a realistic price range, our seller net proceeds calculator can help you see what you'd actually walk away with.

Online estimates: a starting point, not a verdict

Then there are Zillow, Redfin, and other automated valuation models, often called AVMs. They can be a helpful starting point. But an algorithm hasn't walked through your house. It may not know you redid the kitchen, that your finished basement isn't in the public record, that you have a genuine harbor view, or that something next door affects how buyers see the property.

An AVM is a data-driven estimate. It isn't an offer, and it isn't an opinion from anyone who has seen your home. Treat it as one piece of information rather than the final word.

One house, six different numbers

Here's how this can look for a single North Shore home. These figures are hypothetical, but the pattern is very real.

None of these numbers proves the others wrong. They're simply answering different questions.

Price and value aren't always the same thing

One more distinction worth keeping in mind. A seller can ask $900,000 for a home that's likely worth $750,000. That's an asking price, not proof of value. On the other side, a seller under time pressure might accept $700,000 for a home that could have brought more with proper exposure. And a competitive situation with several offers can produce a price above what past sales alone would suggest. The circumstances around a sale always matter, which is why buyers benefit from having someone read those circumstances with them. If you're shopping now, you can browse current North Shore listings and ask us about any home that catches your eye.

So what is your home really worth?

If you're thinking about selling, the most useful question usually isn't what Zillow says, what your tax bill says, or what an appraiser said a couple of years ago. It's this: what is my home likely to sell for in today's market?

Answering that takes current, local information, and real estate on the North Shore is very local. Conditions can differ between Beverly, Salem, Danvers, Peabody, Hamilton, Wenham, Ipswich, Manchester-by-the-Sea, and Gloucester, and even between neighborhoods in the same city. A current market analysis can show you your likely selling range, what you'd be competing against, and how buyers are responding to homes like yours right now.

And if you're on the buying side, understanding these values helps you read listings and appraisals with a clearer eye. Our buyer guides and our Massachusetts home buyer resources cover more of what to expect.