Land Comp Analysis: How to Find Real Comparables for Raw Land
Comparable sales are the backbone of any land valuation. But finding quality comps for vacant land requires more effort and more judgment than for homes.
Comparable sales are the backbone of any land valuation. But unlike homes — where Zillow can surface dozens of recent sales in seconds — finding quality comps for vacant land requires more effort and more judgment.
This guide covers where to find land comps, how to evaluate whether a comp is actually comparable, and how to adjust for the differences that matter most.
Why Land Comps Are Hard to Find
Three structural problems make land comps scarce:
- Low transaction volume. Many rural counties see fewer than 50 vacant land sales per year. Some see fewer than 10.
- Poor data standardization. Land sales are recorded by county recorders, but the level of detail varies wildly. Some counties record acreage, zoning, and parcel ID. Others record just a price and a legal description.
- High variance between parcels. Two 5-acre lots a half-mile apart can be worth completely different amounts based on access, utilities, topography, and zoning.
This means you cannot rely on automated tools designed for residential properties. You need a method.
Where to Find Land Comps
County Assessor and Recorder Websites
Every county recorder maintains a record of property transfers. Most are searchable online, though the interfaces range from modern to unusable.
What you get: Sale price, date, parcel ID, buyer/seller names, and sometimes acreage.
Limitations: Often lacks property details (zoning, access, utilities). You may need to cross-reference with the assessor’s parcel data.
Cost: Free.
MLS (Multiple Listing Service)
If you have MLS access (or work with an agent who does), filter to “vacant land” sales. MLS listings include more property details than recorder data — photos, agent remarks, days on market.
Limitations: Not all land sales go through MLS. Private sales, auction sales, and off-market deals won’t show up.
REGRID and Parcel Data Platforms
REGRID aggregates parcel-level data from counties nationwide. It’s one of the most comprehensive sources for parcel boundaries, ownership, and recorded transactions.
What you get: Parcel boundaries, ownership info, transaction history, assessed values.
Limitations: Subscription pricing. Data completeness varies by county.
Land Auction Platforms
Sites that run land auctions publish results including final sale prices. These are useful comps, especially for lower-value rural parcels where auction sales represent a significant share of transactions.
Caveat: Auction prices skew lower than private-market prices. Use them as a floor, not a ceiling.
Super Plot Reports
Super Plot pulls comparable sales automatically for any parcel. Comps are filtered by distance, recency, size, and zoning — and you see the raw data, not just a number.
How to Qualify a Comp
Not every nearby sale is a good comparable. Here’s how to evaluate whether a comp belongs in your analysis.
The 5 Comp Qualification Criteria
1. Distance: Closer is better. Ideal: within 5 miles. Acceptable: within 15–20 miles. Beyond 20 miles, the comp is probably in a different micro-market.
2. Recency: Under 24 months. Land values shift, especially in growth areas. A comp from 3 years ago may reflect a different market. Prioritize sales from the last 12 months when available.
3. Size similarity: Within 30–50% of your subject parcel. A 1-acre lot and a 40-acre parcel are different products selling to different buyers. Price per acre decreases as size increases.
4. Zoning match. Residential-zoned land is a fundamentally different product than agricultural or commercial land. Always compare within the same zoning category.
5. Similar access and utilities. A parcel on a paved road with utilities at the lot line is not comparable to a landlocked parcel requiring a well and septic system.
How to Adjust Comps
Once you have 3–5 qualified comps, adjust for differences. Common adjustments:
| Factor | Adjustment Direction | Typical Impact |
|---|---|---|
| Road access (paved vs. dirt vs. none) | Higher access = higher value | 10–40% |
| Utilities at lot line vs. not available | Utilities present = higher value | 10–25% |
| Topography (flat/buildable vs. steep/wetland) | Flat/buildable = higher value | 10–30% |
| Flood zone (in vs. out) | Out of flood zone = higher value | 15–30% |
| Proximity to town/amenities | Closer = higher value (usually) | 5–20% |
| Time of sale (market conditions) | Rising market = upward adjustment | Varies |
Worked Example: Pricing a 10-Acre Parcel in Texas
Subject parcel: 10 acres, Williamson County TX. AG-zoned, flat, no utilities, dirt road access. Seller asking $85,000.
Comps found:
| Comp | Acres | Sale Price | $/Acre | Distance | Notes |
|---|---|---|---|---|---|
| A | 8.5 | $72,000 | $8,471 | 3 mi | Paved road, no utilities |
| B | 12 | $96,000 | $8,000 | 7 mi | Dirt road, no utilities |
| C | 10.2 | $89,000 | $8,725 | 5 mi | Paved road, electric at lot line |
| D | 15 | $97,500 | $6,500 | 12 mi | Dirt road, no utilities |
Adjusted average: ($7,624 + $8,000 + $6,980 + $6,825) ÷ 4 = $7,357/acre
Estimated value: 10 acres × $7,357 = $73,570
The asking price of $85,000 appears 15% above the comp-adjusted estimate.
Red Flags: Bad Comps That Distort Your Estimate
- Family/related-party sales — often recorded at $1 or well below market
- Foreclosure/tax sale comps — sold under distress, not market conditions
- Comps with structures — even a small shed or well can inflate the sale price
- Subdivision lot comps — a 0.5-acre lot in a platted subdivision is a different product than a 10-acre rural parcel
- Comps across county lines — different counties can have dramatically different tax rates, zoning rules, and market dynamics
Get Comps Automatically
Super Plot generates comparable sales for any vacant parcel in the US. Enter an address or APN, and the report pulls recent sales filtered by distance, recency, size, and zoning — with the raw data so you can verify.
Basic reports are free. No account required.
Get a free property report on any US parcel
Super Plot pulls zoning, comps, flood zone, environmental flags, and more — so you can make informed land decisions in minutes.
Run a Free Report →No account required.
Related articles
How to Value Vacant Land in 2026: The Method Appraisers Actually Use
Valuing vacant land is harder than valuing a house. This guide walks through the same methods licensed appraisers use — adapted for land investors and buyers who need a reliable number.
Vacant Land Due Diligence Checklist: 12 Things to Check Before You Buy
Buying vacant land without proper due diligence is how investors lose money. This checklist covers the 12 items you need to verify before closing on any vacant land purchase.