How to Read a Comparative Market Analysis (CMA): What Your Agent Is Really Showing You
· Guide · 5 min read
A Comparative Market Analysis is the primary tool your real estate agent uses to recommend a list price or evaluate an offer. Most buyers and sellers receive one at the start of a transaction, glance at the final number, and move on — which means they miss the most informative part. Here is how to read a CMA in full so you can evaluate the recommendation rather than just accept it.
What a CMA is and is not
A CMA is an agent-prepared estimate of a property's market value based on recent sales of similar homes in the same area. It is not a formal appraisal and does not carry the regulatory standards or liability of a licensed appraiser's report. An agent with strong local knowledge can produce a CMA that accurately predicts the final sale price within 2–3%; an agent working outside their expertise can produce one that misses by 10–15% or more.
The key word in "comparative" is "comparable." The analysis is only as good as the comparables selected, and the selection involves real judgment calls — especially in markets with limited inventory or properties that are genuinely unusual.
The three sections of a CMA
1. Sold comparables
Sold comparables (often called "solds" or "closed sales") are the foundation of the CMA. These are properties that have transacted — a buyer and seller agreed on a price, financing closed, and the deed transferred. This is what the market actually paid, not what sellers hoped to get.
What to examine in each comparable:
- Days on market (DOM): How long did the comparable sit before going under contract? A home that sold in 4 days tells a different story than one that sat 90 days before finding a buyer at a reduced price.
- Sale price vs. list price: Did it sell for over, at, or below list? In competitive markets, solds regularly close at 102–108% of list price. In softer markets, they may close at 94–97% of list. This ratio tells you how buyers are behaving right now.
- Date of sale: Comparables older than 90 days are increasingly unreliable in markets with active price movement. Ask your agent what has changed in the local market in the last three months if you are looking at older solds.
- Adjustments: Every comparable differs from the subject property in some ways — square footage, lot size, garage, condition, amenities. The agent applies adjustments (add or subtract value) to account for these differences. The adjustments are where most of the judgment lies.
2. Active listings
Active listings are the competition — what buyers can see on the market right now and compare against your home. They have not sold, which means an active listing price is not a confirmed market value, but it sets buyer expectations. A home priced above similarly active listings will face comparison pressure. A home priced below them may generate multiple offers.
3. Expired and withdrawn listings
Expired and withdrawn listings represent pricing that the market rejected. A home that was listed at $650,000 for 120 days and then withdrawn tells you that $650,000 did not work. This is useful ceiling data — if your CMA shows similar properties failed at a certain price, that price is almost certainly too high.
How adjustments work
Adjustments are the mechanism by which an agent makes unlike properties comparable. A 1,800-square-foot home is being used to estimate the value of a 2,100-square-foot home — the agent adds a value for the extra 300 square feet. A comparable with a pool is used when the subject property has no pool — the agent subtracts the pool premium.
Adjustments are estimates, not facts. A garage is worth something in most markets; what exactly it is worth per square foot is a judgment call based on what buyers have actually paid for it. Ask your agent: "How did you determine the per-square-foot adjustment?" A good agent can answer with specifics.
Common adjustment categories:
- Square footage (typically $50–$150/sq ft depending on market)
- Lot size (especially relevant for larger lots or corner lots)
- Bedrooms and bathrooms
- Garage (presence and number of spaces)
- Condition (updated vs. dated kitchens and baths carry meaningful premiums)
- View, waterfront, or location premium
- Age of major systems (roof, HVAC) if disclosed
Red flags in a CMA to question
Most agents produce CMAs in good faith, but a CMA can also reflect bias. Sellers' agents who want the listing may "high-ball" the CMA to win it, then reduce the price later. Questions to ask when a CMA feels off:
- "Why did you select these comparables and not [specific property I found myself]?" A comparable excluded from the analysis is worth understanding.
- "How old are these solds? What has happened to the market since they closed?"
- "How did you arrive at the per-square-foot adjustment?" A hand-wavy answer here is a problem.
For context on what a strong agent interview looks like, our guide on interviewing real estate agents includes the specific questions that reveal analytical depth versus surface-level answers.
How buyers should use a CMA
Buyers typically receive a CMA when they want to understand whether a home is fairly priced before making an offer. Two key limitations apply:
- The buyer's agent's CMA should be independent of the listing agent's CMA. Ask your agent to pull comparables fresh rather than working off the listing agent's analysis.
- In fast-moving markets, a CMA can be accurate as of two weeks ago and materially wrong today. Ask your agent: "Where has this neighborhood been tracking over the last 30 days specifically?"
For negotiation strategy once you have a CMA, our home price negotiation guide covers when the CMA supports a lower offer and how to structure concession requests. Understanding whether you are in a buyer's or seller's market also changes how much weight to give CMA comparables versus current inventory pressure; see our guide to buyer's vs. seller's markets.
When to order a professional appraisal instead
A CMA is not the right tool for every pricing decision. Consider ordering a licensed appraisal ($350–$600 for a standard residential property) before listing in these situations:
- Your property has no close comparables (unusual architecture, rural location, historic designation)
- You are in a declining market and want an opinion with professional liability behind it
- You are selling an estate or trust property where a defensible valuation matters for tax or legal purposes
- Two agents have given you CMA ranges that differ by more than 10%
Browse real estate agents in your area at our city guides or find agents near you. When evaluating candidates, ask each one to walk you through their CMA methodology — the quality of that answer is one of the most reliable signals of analytical ability you will get before hiring.
Frequently Asked Questions
- What is a CMA in real estate?
- A Comparative Market Analysis (CMA) is an estimate of a home's market value based on recent sales of similar properties in the same area. It is prepared by a real estate agent (not an appraiser) and is used to help sellers price their home or help buyers understand whether an asking price is reasonable.
- Is a CMA the same as an appraisal?
- No. A CMA is prepared by a real estate agent and is an informal analysis used for pricing decisions. A home appraisal is conducted by a licensed appraiser under professional standards, is required by lenders for mortgage financing, and carries legal weight that a CMA does not.
- How many comparables should a CMA include?
- A thorough CMA typically includes 3–6 comparable sales from the last 90 days, plus 2–3 active listings and 1–2 expired listings. In fast-moving markets, agents may use 60-day windows; in slow or rural markets, 6–12 month windows are sometimes necessary due to limited transaction volume.
- Can I ask my agent for a CMA before deciding to sell?
- Yes, and you should. Most agents provide a free CMA as part of their listing consultation. Requesting a CMA from two or three agents before selecting one is a standard practice and gives you a range of pricing opinions and an early read on each agent's analytical rigor.
- What does it mean when no good comparables exist for my home?
- When a property has few close comparables — an unusual floor plan, an exceptionally large lot, a waterfront that rarely sells — the CMA relies more heavily on adjustments and the agent's judgment. In these cases, a licensed appraisal is often worth ordering before listing, since appraisers have more tools for reconciling uncommon properties.