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How land developers value raw land: the math wholesalers don't show you

Updated May 2026 Reading time 15 minutes Coverage OR, WA, ID, NV

Every landowner who gets a cash offer asks the same question: is this a real number? This guide answers it by showing the three different ways professional buyers actually value raw land. The wholesaler runs one formula, the retail buyer runs a comp-based number, the developer runs residual land value. Each lands in a different place, and the spread is wider than most owners think. Every load-bearing claim below is cited; primary sources are listed at the bottom.

01The three buyer profiles for raw land

Almost every cash offer, text, or mailer landing in a landowner's inbox traces back to one of three professional buyer profiles. Each runs a different formula and produces a different number on the same parcel. Knowing which is in your inbox is the difference between accepting fair and accepting half of fair.

The land market is bigger than most owners realize. The most recent NAR / Realtors Land Institute Land Market Survey reported land sales up 0.8 percent year over year, with category mix at 33 percent agricultural, 30 percent recreational, 20 percent residential. Recreational and ranch land posted the strongest price growth at 1.9 to 2.2 percent. (Source: NAR, "Land Market Demonstrates Price Resilience.")

  1. The wholesaler. Contracts the parcel and assigns to an end buyer for a spread. Never owns it. Math is the 70 percent (flexed 65 to 80) Maximum Allowable Offer rule.
  2. The retail buyer. Owner-builder, recreational owner, retiree, family wanting acreage. Plans to keep the land. Comp-based math, typically 90 to 100 percent of fair value.
  3. The developer. Plans to subdivide, build, or otherwise add value through entitlement. Residual land value math: finished project value minus hard plus soft costs minus profit equals the maximum land offer.

The spread between the wholesaler and the retail buyer is typically 35 to 55 percentage points of fair value. That spread is where most landowner money gets lost.

02The wholesaler's math (MAO and the 70 percent rule)

The wholesaler is the buyer behind most cold cash offers on raw land. The model: contract a property cheap, find an end buyer, assign the contract for a fee, walk away. The wholesaler never closes themselves.

The standard formula is the Maximum Allowable Offer (MAO), built on the 70 percent rule:

Maximum Allowable Offer (MAO) MAO = (ARV × 0.70) − Repair / Development Costs − Wholesale Fee

ARV ("after-repair value" on houses, or fair retail value on raw land) gets multiplied by 70 percent, then costs to make the property sellable are subtracted, then the wholesaler's fee. The 70 percent discount funds the wholesaler's profit, the end buyer's profit, holding costs, and renegotiation room. Operators flex it 65 to 80 percent by market. (Source: Real Estate Skills, MAO Formula guide.)

A worked house example from the same source: 250K ARV, 30K repair, 20K fixed costs, 15K target profit, 10K wholesale fee = 175K MAO (70 percent of ARV).

On land, the formula collapses. There is no rehab on a vacant lot. The wholesaler's math reduces to roughly:

Land version (no rehab) MAO ≈ (Fair Value × 0.45 to 0.60) − Assignment Fee

Assignment fees typically run 3,000 to 15,000 dollars per transaction. (Source: Real Estate Skills, Wholesale Formula guide.) DirtIQ's research team sees this play out routinely: a parcel with a county Real Market Value of 150,000 dollars draws a cold cash offer of 60,000 to 90,000 dollars. That is the model working as intended for the wholesaler, not a mistake.

Quick gut check

If a cash offer on your land sits materially below half of the county assessor's published Real Market Value, you are almost certainly looking at a wholesale assignment. That is real money on a fast timeline (14 to 30 days), but it is not market value. It is a price built around the buyer's spread, not your parcel.

03The retail listing math

The retail buyer is the owner-occupier: cabin builders, retirees, recreational owners, families wanting acreage, hunters, ag operators expanding adjacent holdings. They are not running a 70 percent formula. They are running a comp-driven check with negotiation room:

Retail buyer (owner-occupier) Offer ≈ Fair Value × (0.90 to 1.00), pending due diligence

Retail offers typically land at 90 to 100 percent of fair retail. The negotiation gap absorbs any title or feasibility issues that surface during inspection plus the buyer's comfort. On a clean parcel with documents prepared, the gap closes toward the top of the range; on a parcel with open questions (no lot-of-record, no septic feasibility, an unresolved easement), it widens.

The trade-off versus wholesale is quantifiable: 40 to 60 percent of fair in 14 to 30 days, or 90 to 100 percent in 3 to 6 months. The dollar gap on a typical OR / WA / ID / NV rural parcel is tens of thousands. The right answer depends on the seller's timeline, not on whether either offer is "fair."

04The developer's residual land value math

The developer is the third buyer and the one most landowners never see. Developers do not buy land to hold; they buy it to add value through entitlement, subdivision, or vertical construction. Their math puts a ceiling on what raw land is worth, and it is called residual land value (RLV):

Residual Land Value (RLV) RLV = Total Development Value − (Development Costs + Developer's Required Profit)

Gross Development Value (GDV) is the projected sale value of the completed project. Development Costs include hard costs (foundations, framing, finishes, site work) plus soft costs (engineering, permits, financing, legal, marketing). Developer profit is typically 15 to 20 percent of GDV on residential, or 20 percent of total costs by firm convention. (Sources: Adventures in CRE; Dev-Res.)

Adventures in CRE's worked example:

That 9,000,000 dollar number is the most the developer can pay for the land while still hitting their target return. Anything higher and the deal does not pencil; the developer walks. (Source: Adventures in CRE.)

The same math runs at smaller scale on a single-lot build. NAHB's 2024 Cost of Construction Survey breaks a new single-family home as: 64.4 percent construction, 13.7 percent finished lot, 11.0 percent builder profit, 5.7 percent overhead, 2.8 percent commission, 1.5 percent financing, 0.8 percent marketing. The lot share fell from 17.8 percent in 2022 to 13.7 percent in 2024, the lowest in the survey's history, as construction costs absorbed the gain. (Sources: NAHB, Jan 2025; Eye on Housing.)

Translation for a landowner: a builder running RLV on a single-lot project backs out construction at roughly 60 to 65 percent of sale price, soft costs and overhead at 10 to 15 percent, profit at 10 to 20 percent. Whatever is left is what they can pay for the land. On many one-acre rural lots that lands below the retail comp number, which is why builders rarely outbid recreational buyers on a single buildable lot. They show up on parcels with subdivision upside.

When developers actually beat retail

On a 40-acre R-2 parcel near a growing community with a clear subdivision pathway, a developer's RLV can land at 70 to 85 percent of the after-entitlement value of the resulting lots, which often exceeds what a single recreational buyer would pay for the 40 acres as one parcel. Entitlement upside is the single biggest swing factor on the right list price.

05Why comps for raw land are different (and why Zillow doesn't try)

The first thing most landowners do is check Zillow. The first thing Zillow says is that it cannot help. Zillow does not publish a Zestimate for vacant land. (Source: Zillow, "What is a Zestimate?" and "How to Figure the Value of Empty Building Lots.") AVMs are trained on dense improved-property data, and raw land does not produce that density.

Three things make raw-land comping different:

The professional alternative: pull every arm's-length closed sale in the target subdivision or section-township-range for the past 3-5 years, adjust for parcel differences, cross-check against RMV and active listings, produce a defended range. DirtIQ's research team runs this pull on every property in a Snapshot or Complete report.

06The seven factors that move raw-land value 20 to 40 percent

Same-acreage parcels can vary 20 to 40 percent or more in fair value based on factors that never appear on Zillow. Land developers who have collectively underwritten 100+ deals a year check each of these before signing; landowners who do not are negotiating blind.

1. Zoning and dwelling eligibility

Zoning governs what can happen on the land. In Oregon, Forest (F) and Exclusive Farm Use (EFU) parcels are gated by statutory tests: a forest template dwelling under ORS 215.750 requires a soil productivity test plus an existence-of-neighbors test (other parcels and dwellings on or before January 1, 1993). Forestland divisions under ORS 215.780 require an 80-acre minimum. (Sources: ORS 215.750, 215.780.) On comparable EFU acreage, "dwelling-eligible by template" versus "no dwelling pathway" can swing value 30 to 60 percent.

For Rural Residential zones in OR / WA / ID / NV, the practical questions are minimum lot size for partitions, whether the parcel is a pre-existing platted lot of record (which typically preserves a single-dwelling right below the modern minimum), and applicable setbacks. A written lot-of-record determination from county planning is typically a 50 to 150 dollar admin fee and removes a real buyer objection at closing.

2. Environmental constraints

Flood zone (FEMA), wetlands (USFWS NWI), slope, soils, state-specific overlays. A FEMA Special Flood Hazard Area parcel trades 10 to 25 percent below an identical Zone X parcel due to mandatory flood insurance, build restrictions, and lender hesitancy. Mapped wetlands can zero out the developable area. Pacific Northwest slope above 25 percent typically triggers geotechnical engineering at tens of thousands of additional build cost.

3. Legal access

Legal access is binary; without it, the parcel sells for a fraction of potential. County-maintained frontage is the cleanest case. Recorded easements with adequate width and clear maintenance language are lender-friendly. Unrecorded "we've always used that road" access is a deal-killer for any financed buyer and can knock 40 to 60 percent off value until resolved.

4. Utilities at the road versus pulled from a distance

Power at the property line versus pulling power a quarter mile from the nearest pole at 15 to 30 dollars per linear foot is a 15 to 25 percent fair-value swing on a typical 5-acre rural lot.

5. Well and septic feasibility

Outside small water districts and HOA community systems, the buyer assumes a well and septic. Oregon well drilling runs ~28 to 65 dollars per foot, with a typical 200-foot Oregon well averaging ~8,400 dollars in 2026; Idaho similar. (Source: WellDrillingCosts.com.) Conventional gravity septic in OR / WA / ID typically runs 8,000 to 15,000 dollars installed; Alternative Treatment Technology (ATT) systems required in nitrogen-sensitive sub-basins (parts of S. Deschutes / N. Klamath, for instance) run 25,000 to 40,000 dollars installed. A 15,000 to 25,000 dollar build-cost swing is a meaningful RLV swing.

6. Water rights (where they exist)

Water rights are tied to specific Place of Use maps and ranked by priority date. In stressed basins (the Klamath Basin is the textbook case), a senior priority date with recent full delivery versus a junior right shut off in dry years is the difference between productive ag ground and dry-land of the same acreage. The price gap can exceed 50 percent. Pull the certificate and Place of Use map before listing irrigated ground; the buyer's first question will be priority date.

7. Subdivision potential and encumbrances

A 40-acre parcel that yields 10 buildable lots under current zoning is fundamentally different from one that yields one. Subdivision viability depends on zoning minimum, road and utility access, soils and slope, and HOA or covenant restrictions. On the encumbrance side: recorded easements, mineral reservations, conservation easements, HOA CC&Rs, and pending special assessments all move value. Pending HOA special assessments surfacing at closing are the most common source of price renegotiation on platted-subdivision land.

07Why the cash offer in your mailbox is 40 to 60 percent of fair value

The wholesaler is solving a different problem than the retail buyer. The retail buyer is buying the land. The wholesaler is buying the assignment opportunity. The 40 to 60 percent of fair value the wholesale offer represents is paying for, in rough order:

None of that pays you for your land. The land's actual market value is a separate number, produced by retail or developer math.

This is not an argument against wholesalers. Wholesale is a legitimate fast option for sellers who need to close in two to four weeks and are willing to trade price for speed. The problem is accepting a wholesale offer believing it represents the market.

08A worked example: 5 acres in rural OR / WA / ID / NV

Hypothetical 5-acre rural-residential parcel in a mid-tier rural market (think Stevens WA, Crook OR, Adams ID, Lyon NV). Realistic 2026 inputs:

Defended fair retail value: 90,000 dollars (5 × 18,000).

Run the three formulas

Wholesale offer (MAO formula on land):

Retail buyer (owner-builder, recreational, retiree):

Developer (residual land value, hypothetical single-home build):

The developer's RLV (~65,650 dollars) lands below the retail buyer's 85,000 to 90,000 dollar number. That is why builders rarely outbid recreational buyers on a single rural buildable lot: the recreational buyer pays close to retail because they intend to use the land, while the developer has to back into a number that leaves profit intact.

Change one input. Same 5-acre parcel sitting inside a 40-acre family-owned tract with a clear path to subdivide into five 5-acre lots:

That is 80 percent higher per acre than the single-lot retail number. This is the entitlement-upside scenario where developers genuinely outbid retail buyers. The math only works if zoning, soils, access, and engineering all support the subdivision; otherwise the developer's number drops back below retail.

The takeaway

Same 5-acre parcel, same market: ~45,000 dollars (wholesale) to 85,000 to 90,000 dollars (retail), and the surrounding 40-acre parent could generate 32,500 dollars per acre to a developer with a clean subdivision path. The right list price is not a single number; it depends on which buyer pool fits and what documents the seller prepares before listing.

09What landowners can do to close the gap

Five moves close most of the wholesale-to-retail gap on a typical OR / WA / ID / NV rural parcel. None requires hiring an appraiser; all are within reach of any motivated landowner.

1. Pull real comps, not Zillow

Zillow does not publish Zestimates for vacant land (Source: Zillow). The defensible alternative: pull every arm's-length closed sale in your subdivision or section-township-range from the county assessor or recorder for the past 3-5 years, then adjust for parcel-level differences. The data is free; the work is pulling and adjusting.

2. Anchor on the assessor's Real Market Value

County assessors publish a Real Market Value (RMV) annually on the tax roll. In Oregon it is decoupled from the Measure 50 Assessed Value (see DirtIQ's Klamath County guide). RMV is not perfect (it misses HOA amenities, water priority, recent micro-market shifts), but it is a defended public-record anchor against which to benchmark any wholesale offer.

3. Get the documents in hand before listing

Listings that close in 3-4 months have documents from day one; 8-to-12-month closes developed the same documents in response to buyer objections. The basic packet:

4. Solicit multiple offers, deliberately

One wholesale offer is not the market. Three wholesale offers, two retail offers from a broker listing, plus a developer inquiry on the parent parcel: that is the market. Cost is mostly time; the spread between high and low is typically tens of thousands.

5. Choose the trade-off consciously

A landowner who needs to close in two weeks for probate, estate division, or personal financial pressure is better off taking a clean wholesale offer at 45 to 55 percent of fair than chasing a retail listing they cannot wait out. A landowner with no time pressure who accepts the same offer because they did not know fair value is leaving real money on the table. Same decision; different information.

10FAQ

What is the wholesaler's formula for a cash offer on my land?

MAO = (ARV × 0.70) − costs − wholesale fee. On raw land with no rehab this lands at 45-60 percent of fair value; assignment fees typically 3,000-15,000 dollars per transaction (Source: Real Estate Skills).

What is residual land value and why does a developer use it?

RLV = Total Development Value − (Development Costs + Developer Profit). Max a developer can pay and still hit target return. Profit typically 15-20 percent of GDV on residential (Sources: Adventures in CRE; Dev-Res).

Why does Zillow not give a Zestimate on my vacant lot?

Zillow does not publish Zestimates for vacant land. AVMs depend on dense comparables; rural parcels often close 1-2 sales a year, and site-specific drivers (zoning, water, access, easements) are not in AVM feeds (Source: Zillow).

Why is the cash offer in my mailbox typically 40 to 60 percent of fair value?

That gap funds the wholesaler's fee, end-buyer margin, marketing, holding costs, and renegotiation cushion. None of it pays you for the land.

What factors move raw land value the most?

Zoning and dwelling eligibility, environmental constraints, legal access, utility status, septic and well feasibility, water rights, subdivision potential, encumbrances. Each can move value 10-40 percent on an otherwise comparable parcel.

How can a landowner close the gap between wholesale and retail value?

Pull real closed comps from county records. Anchor on assessor RMV. Get documents (lot-of-record, septic feasibility, HOA payoff, title) in hand before listing. Solicit multiple offers. Decide consciously between speed and price.

Are land developer offers higher than wholesale?

Yes on parcels with entitlement upside, where RLV pencils at 70-85 percent of after-entitlement value. On a one-acre lot with no subdivision potential, developers do not show up; the retail buyer is the high bidder.

What does it cost to install a well and septic on rural land?

Oregon well: ~28-65 dollars/ft, ~8,400 dollars for 200 ft in 2026 (Source: WellDrillingCosts.com). Idaho similar. Septic: gravity 8,000-15,000 dollars; ATT (parts of S. Deschutes / N. Klamath, OR) 25,000-40,000 dollars.

11Sources

Primary sources used in this guide

  1. Real Estate Skills, "MAO Formula: Real Estate Guide & Free Calculator": realestateskills.com/blog/mao-formula (worked house example: 250K ARV, 30K repair, 20K fixed, 15K profit, 10K wholesale fee = 175K MAO).
  2. Real Estate Skills, "Real Estate Wholesale Formula: An Investor's Guide (2026)": realestateskills.com/blog/wholesale-formula (typical assignment fee 3,000 to 15,000 dollars; 65 to 80 percent flex on the 70 percent rule).
  3. Adventures in CRE, "Residual Land Value Analysis" glossary: adventuresincre.com (RLV formula and 45M GDV / 30M cost / 20% profit / 9M land worked example).
  4. Dev-Res, "Residual Land Value: Definition & Calculation": dev-res.com (developer profit margin typically 15 to 20 percent of GDV on residential).
  5. NAHB, "Cost to Construct a Home Rose Significantly Over Last Two Years" (Jan 2025, 2024 survey): nahb.org (64.4% construction, 13.7% lot, 11.0% profit, lot share down from 17.8% in 2022).
  6. Eye on Housing (NAHB), "Cost of Constructing a Home in 2024": eyeonhousing.org (full percentage breakdown across construction stages and overhead categories).
  7. NAR / Realtors Land Institute Land Market Survey article, "Land Market Demonstrates Price Resilience": nar.realtor (price growth by category; agricultural 33%, recreational 30%, residential 20% of sales).
  8. NAR / RLI, 2024 Land Market Survey Report (PDF): rliland.com (2024 PDF) (full methodology; cited via summary article).
  9. Zillow, "How to Figure the Value of Empty Building Lots": zillow.com/learn (recommended methods for valuing vacant land).
  10. Zillow, "What is a Zestimate?": zillow.com/zestimate (Zestimate not published for vacant land).
  11. WellDrillingCosts.com, "Well Drilling Cost in Oregon: $28 to $65 per ft (2026)": welldrillingcosts.com (8,400 dollar average for 200-ft Oregon well).
  12. WellDrillingCosts.com, state-by-state guide: welldrillingcosts.com (Idaho averages, regional comparisons).
  13. Oregon Revised Statutes 215.750, Forest template dwellings: oregon.public.law/statutes/ors_215.750.
  14. Oregon Revised Statutes 215.780, minimum lot or parcel sizes for forest/EFU divisions: oregon.public.law/statutes/ors_215.780.

12Run a free property Snapshot

The math applies to every raw-land parcel in OR / WA / ID / NV. What it cannot tell you is which formula fits your parcel: whether developers show up, whether your wholesale offer is normal or aggressive, whether the documents you need are 50-dollar phone calls or 2,000-dollar studies. DirtIQ runs a free Snapshot that answers the first half in ~30 minutes, no card.

Free property Snapshot

A four-page property summary: zoning, flood zone, assessed value, initial market range, and five findings flagged for further review. Built from county GIS, FEMA, OWRD, state water agencies, and other primary sources. Coverage: Oregon, Washington, Idaho, Nevada.

No card. ~30 min delivery. OR, WA, ID, NV parcels. Submitting opts you in to Snapshot delivery and occasional follow-up by email; opt out anytime.