How much does CoStar cost in 2026?
$149/mo
$450–$500/moIn this article
Short answer: CoStar doesn't publish its prices. Third-party estimates put a solo broker at roughly $450 to $500 a month on an annual contract, and firm contracts at about $3,000 to $23,000 or more a year. If you mostly use it to find owners, West Kite does that for a published $149 a month.
These are estimates, not CoStar's numbers, so only a written quote tells you your real price. We've linked each one so you can judge it yourself. And yes, we make West Kite.
What the estimates say
| Source | Estimate | How much to trust it |
|---|---|---|
| The GTM Directory | $450 to $500 a month for solo brokers | Third-party estimate |
| Same page, citing Vendr | $3,000 to $23,000+ a year for contracts | Based on transaction data, not CoStar |
| Appraisers Forum post | $455 a month for a national-only license | One person's report, undated |
We found plenty of other pricing pages, but most were thin blog posts with no sources, so we left them out.
What changes your price
Based on those sources and on how CoStar sells, expect these to matter:
- How many people need a seat.
- Which markets you need. Your license may not be national.
- Which products and modules you add.
- Contract length and your renewal terms.
- Your role. Broker access may cost more than basic research access.
How to get a real number
CoStar sells through its sales team. Before you call, write down:
- Who needs access.
- Which markets you actually work in.
- What you'll use it for: lease comps, sale comps, owners, analytics.
Then ask for a written quote with the total annual cost, the contract length, how renewal works, and what happens if you want to cancel. Read the renewal terms before you sign, and if you're already a customer, check your notice date before assuming you can walk away.
Is CoStar worth it?
It can be. If you quote market rents every week or your clients expect CoStar numbers, it may easily pay for itself with one extra deal.
It's harder to justify if you mostly use it to find out who owns a building. At the estimated solo price, that's about $5,400 to $6,000 a year. West Kite does that job for $1,788 a year, and also finds the owner's phone number and lets you contact them.
What's cheaper, and what you give up
| Tool | Published price | What it's good for | What you give up |
|---|---|---|---|
| West Kite | $149/month | Owners and outreach | Lease comps, market analytics |
| Crexi Intelligence | $299/month | Sales and lease comps | CoStar's broader coverage of research jobs |
| Reonomy | From $400/month, billed annually | Owner portfolios and exports | Lease comps and analytics |
| CompStak | Free if you share comps | Lease comps | Owner research |
We go through all of them in the best CoStar alternatives, and compare directly in West Kite vs CoStar.
Frequently asked questions
Does CoStar have a monthly plan?
CoStar doesn't publish its terms. The estimates we found generally describe annual contracts, so ask whether a shorter term is available.
Is LoopNet the same as CoStar?
No, though CoStar Group owns both. LoopNet is a listings marketplace, while CoStar is the research database.
Why doesn't CoStar list its prices?
It sells custom packages through a sales team, so the price varies by customer. CoStar hasn't said more than that publicly, as far as we could find.
Is there a free version of CoStar?
We didn't find one. CompStak is free for brokers who share lease comps, and county records are free for ownership and many sales.
