Buying a vineyard or farm in the Willamette Valley: the legal checklist before you sign.

Why is farmland due diligence different from other real estate?

A farm purchase carries legal layers that a commercial building or a residential lot does not. The water may belong to the land under one set of rules and be lost under another. The zoning may prohibit the house, the tasting room, or the event barn you are planning. The property tax bill you saw in the listing may depend on a special assessment that your ownership has to keep earning. A buyer who treats a vineyard like a house purchase with more acreage usually discovers these layers after closing, when the options are expensive.

What should I know about Oregon water rights before buying a farm?

In Oregon, water rights are generally appurtenant to the land, which means they can pass with the property. Whether the right is still alive is a separate question. Under ORS 540.610, beneficial use is the basis, the measure, and the limit of every water right in the state. When the holder of a perfected water right fails to use all or part of the water for five successive years, that nonuse creates a rebuttable presumption of forfeiture.

The practical translation: if the seller’s irrigation right sat unused for five years, you may be buying land whose water right can be cancelled. Before signing, obtain the Water Right Certificate, confirm the priority date, the authorized acres, and the point of diversion with the Oregon Water Resources Department, and ask the seller for evidence of actual use during the past five years. For a vineyard or an irrigated grass seed operation, the water right often carries more value than the improvements.

How does exclusive farm use zoning affect what I can do with the land?

Most farmland in Marion County and Polk County sits in an exclusive farm use (EFU) zone. Under ORS 215.203, land in an EFU zone must be used exclusively for farm use except for the specific uses the legislature allows, primarily listed in ORS 215.283. Those exceptions are narrower than most buyers expect. A new dwelling on EFU land must qualify under specific tests, including income tests tied to the farm operation. A tasting room, commercial kitchen, or event venue may be allowed, conditionally allowed, or prohibited depending on the parcel and the county’s application of the statute.

Verify the zoning designation with the county planning department before you sign, and confirm in writing that your intended uses are permitted. A contingency in the Purchase and Sale Agreement tied to land use verification protects you if the answer comes back wrong.

What is farm tax deferral and why does it matter at closing?

Farm use special assessment, often called farm tax deferral, values qualifying farmland at its farm use value instead of its real market value, which can cut the property tax bill dramatically. The benefit comes with a hook. Under ORS 308A.703, when land is disqualified from the special assessment, the county can collect additional taxes equal to the difference between the taxes actually assessed and the taxes that would have been assessed, going back as many as ten years for EFU zone farmland.

A buyer who takes the land out of farm use, or fails to keep a qualifying farm operation running, can inherit that rollback. Before closing, confirm the property’s assessment status with the county assessor, understand what use is required to keep it, and address any potential additional tax liability in the transaction documents.

How do easements and access work for Oregon farmland?

Farm properties in the Willamette Valley commonly carry easements for irrigation ditches, drainage, utility lines, and shared farm roads, and sometimes depend on an easement across a neighbor’s land for legal access. Recorded easements appear in the Preliminary Title Report; read every exception document, not just the list. Unrecorded arrangements are the harder problem. A neighbor who has crossed the property for decades may claim a prescriptive easement, and a handshake irrigation arrangement may not survive a change in ownership. Walk the ground, ask the seller directly about any use by others, and get written answers.

Why should a surveyor check the legal description before you buy?

Because fences lie. The recorded legal description, not the fence line, defines what you are buying, and a fence can sit a long way from the true boundary. On a property as valuable as a Willamette Valley vineyard, that gap can be worth hundreds of thousands of dollars to either party, depending on which side the error favors. Michael has found description problems on nearly every piece of farm and vineyard land he has helped a client buy or sell.

Surveyor work comes in three levels, and the first is the absolute minimum for any farm purchase.

Closure check

The surveyor takes the metes and bounds legal description and draws out each call. The drawing should close and match the shape of the property. If it does not, the legal description has an error that must be resolved before closing.

Corner staking

The surveyor locates the property corners and marks each one with survey stakes, so you can see on the ground exactly where the boundaries run.

Full survey

A complete survey of the property, for buyers who want the highest level of certainty about what they are purchasing.

Financing changes the picture. When a traditional lender such as a bank finances the purchase, the buyer will order and pay for an Extended ALTA survey as part of the loan process. In an owner-financed purchase or a sale between family members, no lender is requiring one, which makes the closure check even more important, because nobody else in the transaction will order it.

The farm purchase checklist

1. Have a surveyor confirm that the metes and bounds legal description closes: each call, drawn out, should match the shape of the property.
2. Consider having the surveyor locate and stake the property corners, and order a full survey where more certainty is warranted. If a bank is financing the purchase, expect to order and pay for an Extended ALTA survey.
3. Obtain the Water Right Certificate and verify the priority date, authorized acres, and point of diversion with the Oregon Water Resources Department.
4. Ask for proof of beneficial use of the water during the past five years (ORS 540.610).
5. Confirm the zoning designation and verify your intended uses with the county planning department (ORS 215.203).
6. Confirm the farm use special assessment status and the potential additional tax exposure with the county assessor (ORS 308A.703).
7. Review every recorded easement in the Preliminary Title Report, and ask the seller in writing about unrecorded use by neighbors.
8. Confirm legal access to the property, especially where the driveway or farm road crosses other ownership.
9. If the property includes a working business, involve a CPA for tax planning before the structure of the purchase is set.
10. Build survey, land use, water, and title contingencies into the Purchase and Sale Agreement before you sign, when you can still walk away or renegotiate.

Frequently asked questions

Do water rights transfer automatically when I buy Oregon farmland?

Water rights are generally appurtenant to the land and pass with it, but only if the right is still valid. Five successive years of nonuse creates a rebuttable presumption of forfeiture under ORS 540.610, so verifying the use history matters as much as verifying the certificate.

Can I build a house on EFU land in Marion County?

Sometimes, and only under specific statutory tests. Dwellings on exclusive farm use land must qualify under the exceptions to ORS 215.203, and some require the farm operation to meet gross income thresholds. Confirm with the county planning department before you commit.

What happens to the farm tax deferral when the property sells?

The special assessment can continue if the land stays in qualifying farm use. If the land is disqualified, ORS 308A.703 allows the county to collect up to ten years of additional taxes on EFU zone farmland. A buyer should confirm the status and the exposure before closing.

What is an Extended ALTA survey and who pays for it?

An Extended ALTA survey is a detailed boundary and title survey prepared to national standards that lenders and title companies rely on. When a bank finances a farm or vineyard purchase, the buyer orders and pays for it as a condition of the loan. In owner-financed or family transactions there is no lender requirement, so the buyer should arrange at least a closure check independently.

Do I need a lawyer to buy a vineyard in Oregon?

Oregon does not require one, but vineyard and farm purchases involve water rights, land use law, tax assessments, and title issues that standard sale forms do not fully address. An agricultural real estate attorney reviews these before you are bound, when problems can still be solved by contract.

What does a farm purchase attorney actually review?

The Purchase and Sale Agreement, the survey work and legal description, the Water Right Certificate and use history, the zoning and permitted uses, the special assessment status, the Preliminary Title Report with every recorded exception, and the access and easement picture. The goal is that you know exactly what you are buying before you sign.

Buying farmland in the Willamette Valley

Michael Paluska has represented grass seed farmers, vineyard owners, and nursery operators across Marion County, Polk County, and the wider Willamette Valley, and he was raised on a family farm that ran more than 1,000 purebred Hampshire sheep. Where the property includes a working business, Michael involves a CPA, one he has worked with during his career, so tax planning shapes the structure of the purchase rather than reacting to it.

If you are buying or selling agricultural property in Salem, Keizer, or the surrounding communities, read more about the firm’s Commercial & Agricultural Real Estate practice or call 503.585.2066.