"What's my house actually worth?" is one of the first questions almost every seller asks me, and it's usually not far behind "is now a good time to buy?" from the people on the other side of the table. The honest answer to both starts in the same place: a comparative market analysis, or CMA.
A CMA isn't a guess and it isn't an online estimate. It's a real look at what's happening in your specific neighborhood right now, built from actual sales, not an algorithm guessing from public records. Here's what goes into one and why it matters whether you're buying or selling.
What a CMA Actually Is
A comparative market analysis is a professional estimate of a home's market value, prepared by a real estate agent rather than a licensed appraiser. It's not a formal appraisal — lenders still order those separately during the mortgage process — but it's the same kind of thinking an appraiser uses, applied earlier and with more local context.
The core idea is simple: compare a home to similar properties that have actually sold, are currently under contract, or are sitting on the market right now. Put those three pictures together and you get a realistic read on value, not a theoretical one.
The Three Data Sets That Matter
I look at three categories of homes for every CMA:
- Recently sold homes — this is the strongest signal, because it shows what buyers have actually paid, not what a seller hoped for.
- Pending sales — homes under contract right now tell you where the market is heading and what price points buyers are currently accepting.
- Active listings — this is your competition. If a buyer can get a comparable home down the street for less, they will.
Each of those tells a different part of the story, and a good CMA weighs all three rather than leaning on just one.
Why Local Knowledge Changes the Numbers
Data only gets you so far. Two homes a few blocks apart can behave very differently depending on the school boundary they fall in, how close they are to a busy road, or how a neighborhood's reputation has shifted over the past year or two — none of which shows up cleanly in a spreadsheet of comps.
I live in Huntley and work with buyers and sellers across McHenry and Kane counties — Crystal Lake, Woodstock, McHenry, Cary, Lake in the Hills, Algonquin, Elgin, St. Charles, Geneva, Batavia, and Carpentersville. That means when I pull comps for your home, I'm not just running numbers — I'm factoring in things a report alone won't catch.
How This Plays Out for Sellers
For sellers, the CMA is where pricing strategy starts. Before we ever talk about a listing date, photos, or a marketing plan, we look at what similar homes have sold for, what's currently competing with yours, and what buyers in your price range are actually doing right now.
Getting this right matters more than people expect. A home priced accurately from day one attracts serious buyers while the listing is fresh and generates the most attention. A home that's priced too high tends to sit, and by the time a price reduction happens, buyers have already started to wonder what's wrong with it.
How This Plays Out for Buyers
Buyers think of a CMA as a seller's tool, but I use it constantly on the buying side too. Before you write an offer, I want you to know whether the asking price actually lines up with recent sales and what's currently on the market — not just whether you can afford it, but whether it's priced fairly.
That's especially useful in a market where good homes move quickly. Knowing the real comps gives you the confidence to make a strong offer without wondering if you're overpaying.
CMA vs. Appraisal: Not the Same Thing
People use these terms interchangeably, but they're prepared by different professionals for different purposes. A CMA is done by a real estate agent to help set a listing price or evaluate an offer. An appraisal is a formal valuation completed by a licensed appraiser, and it's what your lender will order to make sure the home supports the loan amount.
Sellers lean on a CMA early in the process. Buyers' lenders require an appraisal later, closer to closing. Both estimate value — they're just doing it at different points for different reasons.
My Honest Take
The number on a CMA is only as good as the person reading it. Two agents can look at the same set of comps and land in different places, because pricing a home is part data and part judgment about your specific street, your specific house, and what's happening in the market this month, not last year.
If you're thinking about listing, or you're getting ready to make an offer and want a real read on whether a price makes sense, reach out or start with a free home valuation. I'll walk you through exactly what the numbers say about your situation — no pressure, just real information.
