Can I Do My Own CMA?

Yes, and Here Is Exactly How Far You Can Take It

Yes. A licensed real estate professional can build a CMA without buying any software, and a homeowner can assemble an informal version from public sale records and consumer listing sites. What neither version becomes is an appraisal. A comparative market analysis is an opinion of likely market value, it has no standing with a lender, and no version of it carries legal weight in an underwriting, tax, or court proceeding.

The answer splits in two directions depending on who is asking.

If You Are a Licensed Agent

You already hold the input that matters most, which is MLS access. Doing your own CMA means pulling recent sold comps and active competition, discarding the sales that do not represent the subject's market, adjusting each remaining comp for its differences, and writing a supported price range with a recommendation attached.

That process works entirely by hand. Agents ran it out of spreadsheets for years and plenty still do. The tradeoff is time, and most of the hours go into assembly and formatting rather than judgment. A step by step version of the sequence is laid out in how to generate a CMA.

So the real question is not whether you can do it yourself. It is which parts deserve your attention. Comp selection, adjustment values, and the pricing conversation are yours. Query building, layout, branding, and delivery are not a good use of a licensed professional's afternoon. That division of labor is the whole argument in the automated CMA pillar.

If You Are a Homeowner

You can research comps. You should expect gaps.

Public records and consumer listing sites will give you sold prices, square footage, bed and bath counts, and lot size. That is enough to build a rough range and enough to arrive at a listing appointment informed rather than blank. Doing the homework is a reasonable thing to do before you talk to anyone.

Here is what public data usually will not tell you:

• Condition at the time of sale. A comp that closed after a full renovation and one that closed with original finishes can look identical in a public record.
• Concessions and sale terms. A seller credit is a price reduction in disguise, and public sources rarely surface it.
• Whether the sale was arm's length. Family transfers, estate sales, and portfolio dispositions close at prices the open market never set.
• Withdrawn and expired activity. Listings that failed to sell are part of the pricing story, and they disappear from consumer sites.
• Boundary effects. School attendance zones, subdivision lines, and HOA differences move price without changing anything physical about the house.

An automated estimate from a consumer site carries the same limits plus one more. It has never seen your kitchen.

A CMA Is Not an Appraisal

This distinction applies to the agent version and the homeowner version equally, and it is worth stating plainly rather than burying in a footer.

A CMA is a real estate professional's informed opinion of likely sale price, supported by comparable sales. An appraisal is a formal valuation performed by a licensed or certified appraiser working under professional standards. Lenders rely on appraisals for underwriting and will not accept a CMA in their place. If you need a valuation for a mortgage, an estate filing, a settlement, a tax appeal, or any proceeding where a third party will rely on the number, you need an appraiser. Not a CMA, and not a spreadsheet you built on a Sunday.

That is not a knock on the CMA. It is the CMA doing its actual job, which is pricing and positioning a property for sale.

The Practical Answer

If you are selling, do your own research and then get a CMA from an agent. The two are not in competition. Your research makes you a sharper participant in the pricing conversation, and it becomes obvious very quickly which agent has studied your submarket and which one printed a template.

If you are an agent, keep the judgment and hand off the assembly. A report that arrives branded, opens as a trackable link, and writes follow-up tasks into your CRM does more work than a report that ends its life as an email attachment. See how the Auto CMA workflow handles intake, human review, and distribution, or get in touch to walk through your current process.

Frequently Asked Questions

Can a homeowner do their own CMA?

A homeowner can assemble an informal comp study from public sale records and consumer listing sites, and doing that research before a listing appointment is worthwhile. The limits are real: public sources usually miss condition at the time of sale, seller concessions, non-arms-length transactions, and withdrawn listings. A homeowner's comp study is a starting point for a pricing conversation, not a substitute for one.

Is a CMA the same as an appraisal?

No. A CMA is a real estate professional's opinion of likely sale price supported by comparable sales. An appraisal is a formal valuation performed by a licensed or certified appraiser under professional standards. Lenders rely on appraisals for underwriting and will not accept a CMA in their place, so anything prepared for a mortgage, estate, tax, or legal proceeding needs an appraiser.

Do agents charge for a CMA?

Most agents provide a CMA at no charge as part of a listing consultation, because the analysis is how the listing conversation starts. Some professionals charge for standalone valuation work when no transaction is attached, such as planning or settlement scenarios. Practices vary by market and brokerage policy, so ask the agent directly rather than assuming.