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Real Estate 9 min read August 24, 2026

Comps Without MLS: A Workflow for Investors and Buyers

Discover how to build accurate property comps without MLS access. Optimize your workflow with free tools and resources to make smart investments.

Table with maps and phones symbolizing comp analysis

Comps Without MLS: A Workflow for Investors and Buyers

Table with maps and phones symbolizing comp analysis

Yes, you can build defensible comps without MLS access. Combine free consumer portals, county recorder data, and (when the deal calls for it) a paid tool or a no-obligation agent CMA, which route wins depends on volume and urgency:

  • One deal, tight deadline: Zillow or Redfin sold filters plus a county records cross-check.
  • Thin or rural market with few sales: an agent CMA fills gaps portals can’t see.
  • Screening multiple properties weekly: a paid tool or DealAnalyzerAI saves hours by aggregating comps automatically.

For most investors chasing a single offer this week, start with free portals, then confirm with county records before you commit numbers to an offer.

Key Takeaways

Building defensible comps without MLS access means layering free portal data, county records, and targeted verification, then stress-testing the resulting ARV before you commit to a number.

Point Details
Start with free portals Use sold filters on Zillow, Redfin, and Realtor.com, then confirm with county recorder data.
Set numeric filters first Default to a 0.5 to 1 mile radius, 3 to 6 month recency, and square footage within 20%.
Use median, not average Stress-test your ARV at 90 to 95% of the median comp value for a conservative offer.
Verify condition before you trust a comp Check Street View, listing photos, and a drive-by; drop unverifiable comps.
Scale with DealAnalyzerAI Investors screening multiple properties weekly can use the tool to aggregate comps and estimate rehab costs from photos faster than a manual pull.

Table of Contents

How to Find Comps Without MLS: A 7-Step Workflow

Set your parameters before you touch a search bar. Start with a 0.5 to 1 mile radius, a 3 to 6 month sale window, square footage within 20% of the subject property, and matching beds/baths within one. Then run the workflow:

  1. Search “recently sold” on Zillow, Redfin, and Realtor.com within your radius.
  2. Filter by square footage, beds/baths, and lot size.
  3. Cross-check every result against your county recorder or assessor site.
  4. Pull three to five closed comps, five if the market allows it.
  5. Note condition from photos, then flag any comp needing a mental adjustment.
  6. Compute the median (not the average) of adjusted comps.
  7. Stress-test your ARV at roughly 90 to 95% of that median for a conservative offer.
  8. Expand your radius or recency window only if you land under three usable comps.

This mirrors the free, repeatable process laid out in Metro Deal Report’s seven-minute comp workflow, and it holds up whether you’re comping a flip or a rental purchase.

Pro Tip: Widen your window to 9 to 12 months before you widen your radius. A stale comp from your own block usually beats a fresh one three miles away in a different school zone.

How Do Zillow, Redfin, and Realtor.com Compare for Comps?

Each portal has a “sold” filter you can layer with a map radius, and each has a blind spot investors need to know before trusting the number.

  • Zillow shows the widest sold history but the Zestimate carries real variance, especially on unique or renovated properties. Treat it as a starting range, not a valuation.
  • Redfin tends to lean on MLS-fed data, so off-market and investor-to-investor sales often don’t show up at all.
  • Realtor.com pulls from a similar MLS backbone but sometimes lags on very recent closings.

Consumers can reliably find comps outside the MLS using these three portals plus county records, but none of them capture cash deals between investors that never hit a public listing. Read days-on-market and price-history drops as a secondary signal: a home that sat for 90 days before selling below its list price tells you something about true demand that the sale price alone doesn’t.

Public Records: Digging Up Sales the Portals Miss

County recorder and assessor offices record every transaction, listed or not, which makes them your best source for investor-to-investor deals that never touched a portal. When you pull a record, capture:

  • Grantor and grantee names (to confirm it’s a genuine sale, not a refinance or family transfer)
  • Sale date and recorded sale price
  • Recording instrument number, for your own file trail

The catch: public records typically lag 30 to 90 days behind closing, and they carry zero photos or condition notes. That lag is exactly why investors need visibility into transaction type beyond what retail portals show. Off-market investor sales get missed by consumer sites but usually show up here, which makes recorder data one of the few ways to see what other investors actually paid.

Are Paid Comp Tools or a Free CMA Worth It?

It comes down to how often you need comps and how thin your market is. Three practical routes exist, each with a different cost-to-speed tradeoff:

  • Monthly subscription to an investor-grade data tool, worth it once you’re screening more than a handful of properties a week.
  • Pay-per-report services, useful for a single complicated deal without ongoing commitment.
  • Free CMA from an agent, best when your market has thin sales volume and you need local judgment more than raw data.

Automated valuation models return a range in seconds, but they miss condition and micro-neighborhood factors that an agent or a photo-based tool catches. A paid subscription earns its cost fastest in volume situations, complex renovation projects, or markets where comparable sales are genuinely scarce.

What Comp Selection Rules Do Investors Actually Use?

Loose comp criteria produce loose offers. Use these defaults, then adjust with judgment:

  1. Distance: 0.5 to 1 mile in dense urban markets, approximately, wider in rural areas where sales are sparse.
  2. Recency: several months preferred; extend the window in low-turnover markets.
  3. Size: within about 20% of subject square footage.
  4. Age: within about 10 years of construction date, when possible.
  5. Beds/baths: matching count, plus or minus one.
  6. Condition: adjust upward for comps in worse shape, downward for comps recently renovated.
  7. Volume: three comps minimum, more preferred, per the standard MLS-adjacent guidance that also applies outside MLS access.
  8. Final math: take the median of your adjusted set, then stress-test your ARV at 90 to 95% of that median before you write an offer.

Pro Tip: Build a “floor comp” and a “ceiling comp” around your subject property instead of chasing a single perfect match. Documenting the range, with photos and short notes on each adjustment, makes your number easier to defend to a lender or a partner.

Our detailed comp selection criteria checklist walks through each adjustment with worked examples if you want to go deeper.

How Do You Verify Condition Without Walking Through the House?

Photos and street-level views close most of the gap between a listing photo and the truth on the ground. Start with Google Street View for a quick exterior read, then pull every available listing photo from the comp’s last sale, and follow up with an actual drive-by when the deal is close to an offer.

Drive-by view of residential house exterior

Watch for these red flags before you count a comp: a mismatched or oversized lot, signs of an extensive gut renovation that inflated the sale price, an unfinished basement counted in square footage, or an illegal room conversion that won’t appraise the same way twice. Document your adjustment with a note and a photo. When you can’t verify condition at all, drop the comp instead of guessing.

Can You Get MLS-Quality Data Without Listing Your Property?

Yes. Call a local agent, explain you’re evaluating a property (not listing one), and ask for a comparative market analysis. Most agents will run one for free hoping to earn your future business. Give them the address, square footage, and any known upgrades so the comps come back relevant.

A CMA typically includes active, pending, and off-market comps an agent has direct access to, something portals can’t replicate. The tradeoff: you’re now on that agent’s radar, which can shift negotiation leverage if you later need to stay anonymous on an offer.

Why Transaction Type Matters More Than Perfect Comps

Retail buyers and investors are not shopping in the same pool, and treating every sale as equivalent is the fastest way to overpay. A flip that sold to an owner-occupant with financing tells you something different than a cash sale between two investors, even at the identical address and square footage.

Dealanalyzerai’s approach leans into that distinction. When you’re screening a property fast, defensibility beats precision. A comp set that’s roughly right and documented beats one that’s theoretically perfect but took four hours to assemble. That’s the lens behind how the tool frames ARV ranges and maximum allowable offers, and it’s why our guide to comparable property methods goes deeper into the mechanics for readers who want the full picture.

Why Transaction Type Matters More Than Perfect Comps — overview diagram

Speed Up Comp Aggregation With DealAnalyzerAI

Manually running the workflow above works, but it takes real time per property, and that time adds up fast if you’re screening several deals a week. Dealanalyzerai cuts that time down by pulling comparable sales, analyzing uploaded property photos for rehab cost estimates, and returning an ARV range and maximum allowable offer in one pass instead of a spreadsheet you build from scratch.

Dealanalyzerai

The tool fits best for active investors who need to move fast on multiple properties without redoing the same county-records-plus-portal process every single time. It also flags risk factors, like signs of deferred maintenance in photos, before you’re locked into an offer. Try the free deal analyzer on your next property and compare the output against your own comp pull. If you want a quick standalone check first, the free ARV calculator gives you a range in minutes.

Sources

FAQ

How Do I Pull Comps Without MLS?

Combine sold-property filters on Zillow, Redfin, and Realtor.com with county recorder data, then verify condition through photos and a drive-by before finalizing your comp set.

How Much Does a Realtor Make Off of a $300,000 House?

Commission structures vary by market and agreement, so there’s no fixed national figure. Ask any agent you work with to disclose their commission rate directly rather than relying on a rule of thumb.

What Is the 3-3-3 Rule in Real Estate?

Definitions of this rule vary across sources and it isn’t a standardized industry term, so treat any specific version you encounter with caution rather than as settled guidance.

How Do I Find Non-MLS Listings?

County recorder and assessor sites capture off-market and investor-to-investor sales that consumer portals often miss, making them your best source for non-MLS transaction data. Tools like DealAnalyzerAI can also surface off-market properties directly.

How Many Comps Do I Need for a Reliable Estimate?

Aim for at least three closed comps, with five preferred, all within your set distance and recency filters for a defensible valuation.

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