You’re staring at an MBE question about a city ordinance that prohibits building within 100 feet of a wetland, and now the plaintiff wants compensation because their property is “essentially worthless.” Is this a taking? Does the government owe just compensation? The Takings Clause trips up more bar exam takers than almost any other Constitutional Law topic because the line between a valid regulation and a compensable taking feels impossibly blurry.

Let’s fix that. You need to know the framework cold, and you need to spot the difference between physical takings and regulatory takings instantly on test day.

What the Takings Clause Actually Says

The Fifth Amendment’s Takings Clause provides that private property shall not “be taken for public use, without just compensation.” This clause applies to the states through the Fourteenth Amendment’s Due Process Clause.

Break it into three required elements: (1) there must be a taking of private property, (2) the taking must be for public use, and (3) the government must pay just compensation (typically fair market value at the time of the taking).

The “public use” requirement is easy—courts apply extreme deference here. As long as the taking serves a conceivable public purpose (including economic development), it satisfies public use. The real fight on the MBE is always whether a taking occurred in the first place.

Physical Takings: The Easy Category

A physical taking occurs when the government physically occupies or authorizes a permanent physical invasion of private property. This is a per se taking—compensation is required, period, no balancing test needed.

Classic example: The government installs a pipeline across your land. That’s a physical appropriation of property. Compensation required.

But here’s the trap on the MBE: even a minor physical invasion can constitute a taking if it’s permanent. In Loretto v. Teleprompter Manhattan CATV Corp., the installation of a cable box on an apartment building was a taking, even though the physical intrusion was tiny. The key was that it was a permanent physical occupation authorized by the government.

Contrast this with temporary invasions. If the government floods your land once during a construction project, that might be a temporary taking requiring compensation only for the period of invasion. But if the government builds a dam that causes your property to flood permanently, that’s a physical taking requiring full just compensation.

MBE Tip: If the fact pattern describes any permanent government-authorized physical presence on private property—no matter how small—flag it as a per se physical taking. Don’t get distracted by whether the invasion seems “significant.” Permanent + physical = taking.

Regulatory Takings: Where It Gets Messy

A regulatory taking occurs when government regulation restricts the use of property so severely that it effectively takes the property, even though there’s no physical invasion. Not every regulation that reduces property value is a taking—governments regulate property all the time through zoning, environmental laws, and building codes. The question is: when does regulation cross the line?

The Supreme Court has given us two clear categories of per se regulatory takings, plus a catch-all balancing test.

Per Se Regulatory Taking #1: Total Economic Wipeout

If a regulation denies all economically beneficial or productive use of land, it’s a per se taking requiring compensation. This is the rule from Lucas v. South Carolina Coastal Council.

Hypothetical: A state environmental law prohibits any development on beachfront property to protect endangered sea turtles. The owner bought the lot intending to build a home. If the regulation makes the property completely valueless (no economic use whatsoever), that’s a taking.

But here’s the escape hatch the government can use: if the regulation merely codifies restrictions that would have applied under background principles of state property and nuisance law, no compensation is owed. In other words, if common law nuisance principles would have prohibited the use anyway, the regulation isn’t taking anything—the owner never had that right to begin with.

MBE Trap: “All economically beneficial use” means all. If the owner can still use the property for something economically productive (even if it’s not the most profitable use), this per se rule doesn’t apply. A 95% reduction in value? Not enough. It has to be a total wipeout.

Per Se Regulatory Taking #2: Permanent Physical Occupation (Again)

We covered this under physical takings, but it applies here too. If a regulation authorizes a permanent physical occupation by third parties (like requiring landlords to allow cable installations), that’s a per se taking even though the government itself isn’t occupying the property.

The Penn Central Balancing Test: Everything Else

When a regulation doesn’t completely destroy economic value and doesn’t authorize a physical occupation, courts apply the multi-factor balancing test from Penn Central Transportation Co. v. New York City. This is the messiest area and the most tested on the MBE.

Courts consider three primary factors:

  1. The economic impact of the regulation on the claimant. How much has the property value decreased? A severe reduction weighs toward finding a taking, but there’s no magic percentage threshold.

  2. The extent to which the regulation interferes with distinct investment-backed expectations. Did the owner buy the property with reasonable expectations of a particular use that the regulation now prohibits? If the owner bought wetlands knowing they were wetlands, their expectation of building a shopping mall is less reasonable. If they bought residential land in a residentially-zoned area and the government suddenly downzones it to prohibit all homes, that’s a stronger takings claim.

  3. The character of the governmental action. Is this a regulation that benefits the public broadly (like environmental protection), or is it a targeted action that forces one property owner to bear a burden that should be distributed across society? A regulation that prevents a nuisance-like harm (preventing flooding, protecting public health) is less likely to be a taking than one that forces a property owner to confer a public benefit (requiring public access to private beaches).

MBE Application: When you see a regulatory takings question that doesn’t fit the per se categories, you’re in Penn Central territory. The answer will require balancing. Look for answer choices that acknowledge multiple factors rather than bright-line rules.

Exactions and Conditions: The Nollan/Dolan Test

A special subcategory of regulatory takings involves exactions—when the government conditions a development permit on the owner dedicating land or paying money for public purposes.

Example: “You can build your beachfront house, but only if you grant the public an easement to cross your property to reach the beach.”

This is a taking unless the government satisfies two requirements:

  1. Essential nexus (Nollan): There must be a logical connection between the condition imposed and the legitimate government interest advanced by denying the permit altogether. If the government’s concern is traffic congestion, requiring a beachfront easement has no nexus.

  2. Rough proportionality (Dolan): The burden imposed must be roughly proportional in nature and extent to the impact of the proposed development. If building one house would generate minimal traffic, requiring the owner to dedicate two acres for road widening is disproportionate.

MBE Tip: Exaction questions often involve coastal access or land dedications. Spot the conditional permit, then apply the two-part test. If either nexus or proportionality is missing, it’s a taking.

What “Just Compensation” Means

If a taking is found, the remedy is just compensation, which generally means the fair market value of the property at the time of the taking. This includes the value of the property taken plus any severance damages to the remaining property if only part was taken.

Just compensation does not include consequential damages like lost business profits or emotional distress. It’s purely the property’s market value.

Putting It All Together for the MBE

Here’s your decision tree for takings clause MBE questions:

Step 1: Is there a permanent physical occupation by the government or a third party authorized by the government? If yes → per se taking, compensation required.

Step 2: Does the regulation deny all economically beneficial use of the property? If yes → per se taking under Lucas (unless background nuisance principles would have prohibited the use anyway).

Step 3: Is this a conditional permit/exaction situation? If yes → apply Nollan/Dolan (nexus + rough proportionality). If both are satisfied, no taking. If either fails, taking.

Step 4: None of the above? → Apply Penn Central balancing test (economic impact + investment-backed expectations + character of government action).

Step 5: If a taking is found, remedy is just compensation (fair market value).

Common MBE Traps to Avoid

Trap #1: Confusing reduction in value with total destruction. A regulation that reduces property value by 80% or even 90% is not a per se taking. Penn Central balancing still applies unless the property is rendered completely without economic use.

Trap #2: Thinking “public use” is a real limitation. It’s not. Courts defer completely to legislative judgments about public use. Economic development counts. Increasing tax revenue counts. If the answer choice hinges on whether the taking serves a “legitimate public use,” it’s almost certainly wrong.

Trap #3: Forgetting the nuisance exception to Lucas. Even if a regulation destroys all economic value, no compensation is owed if background principles of property or nuisance law would have prohibited the use anyway. The MBE loves this exception.

Trap #4: Applying per se rules to Penn Central situations. If the property still has some economic use, you’re in balancing-test land. Don’t reach for a per se rule when the facts show partial (not total) impact.

What You Must Memorize

Lock these rules into active recall:

The takings clause MBE questions are pattern-recognition exercises. You need to spot which framework applies, then apply the elements mechanically. The examiners will try to distract you with sympathetic facts (the poor landowner!) or compelling policy arguments (environmental protection!). Ignore all of it. Stick to the framework.

If you want all 87 Constitutional Law rules organized for active recall—including the complete takings analysis and the other heavily-tested areas like dormant commerce clause, equal protection tiers, and free speech categories—that’s exactly what FlashTables covers. The two-column format forces you to test yourself on elements and exceptions until the frameworks become automatic. You can grab the Constitutional Law tables or the complete MBE bundle at getflashtables.com/#pricing.

Now go drill some practice questions. You’ve got the framework. Time to make it instinctive.