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Overview
Land use and zoning law governs how private property may be used and developed, balancing individual property rights with the public interest. On the Texas Real Estate Salesperson Exam, you will need to understand both public controls (zoning ordinances, eminent domain) and private controls (deed restrictions, HOAs), as well as the key processes for obtaining exceptions to zoning rules. Texas has unique characteristics — particularly Houston's lack of traditional zoning — that frequently appear on exam questions.
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Section 1: Zoning Fundamentals
The Legal Basis for Zoning
Local governments derive their authority to regulate land use from police power — the inherent governmental right to enact laws protecting public health, safety, morals, and general welfare. This is the foundational concept underlying all zoning law.
The constitutional validity of zoning was established by the landmark U.S. Supreme Court case:
• Village of Euclid v. Ambler Realty Co. (1926) — upheld traditional use-based zoning as constitutional
Types of Zoning
Euclidean Zoning (traditional/use-based zoning):
• Separates land into distinct, mutually exclusive districts
• Named after Euclid, Ohio (the city in the 1926 Supreme Court case)
• The dominant zoning model in the United States
Standard Zoning District Classifications:
| Code | Use Type | Example Subcategory |
|------|----------|-------------------|
| R | Residential | R-1 (single family), R-2 (multifamily) |
| C | Commercial | C-1 (retail), C-2 (general commercial) |
| I | Industrial | I-1 (light), I-3 (heavy industrial) |
> Numbers indicate intensity or density within each category — higher numbers generally mean more intensive use.
Texas-Specific Zoning Facts
• Houston, Texas is the largest U.S. city without a traditional comprehensive zoning ordinance
• Houston instead relies on:
- Private deed restrictions
- Subdivision regulations
- Private agreements between property owners
• This makes Houston a frequent exam topic as a notable exception to standard U.S. zoning practice
Buffer Zones
A buffer zone is a transitional area placed between incompatible land uses to reduce conflict.
• Example: A park or landscaped strip between an industrial facility and a residential neighborhood
• May consist of parks, green space, low-intensity commercial uses, or landscaping
Key Terms
• Police power — government's inherent authority to regulate for public health, safety, and welfare
• Euclidean zoning — traditional use-based zoning separating land into distinct districts
• Buffer zone — transitional area between incompatible land uses
• Zoning ordinance — local law implementing zoning regulations
• Zoning district — designated area with specific permitted uses
⚠️ Watch Out For
• Police power is the legal basis for zoning — don't confuse it with eminent domain (which involves taking property with compensation)
• Houston's lack of zoning is a Texas-specific fact that frequently appears on state portion questions
• Higher district numbers generally mean more intensive use, not more restrictive
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Section 2: Zoning Variances & Special Permits
Variances
A variance is official permission to deviate from zoning requirements due to unique physical hardship caused by the property's characteristics — not personal financial hardship.
Who grants variances:
• Board of Adjustment (also called Board of Zoning Appeals)
Two types of variances:
| Type | What It Permits | Example |
|------|----------------|---------|
| Use Variance | A land use not normally allowed in the zone | Operating a small store in a residential zone |
| Area Variance | Deviation from dimensional/physical standards | Building closer to a property line than setback allows |
> Key distinction: Use variances change what you can do; area variances change how you can build (dimensions, setbacks, height, lot coverage).
Conditional Use Permits (Special Use Permits)
A conditional use permit (CUP) allows a land use that is not permitted by right in a zone but is allowed when specific conditions are met and approved.
• Also called a special use permit or special exception
• Subject to approval by a zoning board or local government body
• Requires ongoing compliance with stated conditions
• Common examples: churches, schools, daycares, or hospitals in residential zones
Spot Zoning
Spot zoning is the rezoning of a single parcel differently from surrounding properties to benefit one private owner rather than the public.
• Generally considered illegal because it is:
- Arbitrary and inconsistent
- Not aligned with the comprehensive plan
- Not in the public interest
- Discriminatory toward neighboring owners
Key Terms
• Variance — permission to deviate from zoning requirements due to unique property hardship
• Board of Adjustment — body that grants variances
• Use variance — permission to use land in a way not normally allowed in the zone
• Area variance — permission to deviate from physical/dimensional standards
• Conditional use permit (CUP) — permit for a use allowed only with conditions and approval
• Spot zoning — illegal rezoning of one parcel to benefit a single owner
⚠️ Watch Out For
• Variances are based on property hardship, not owner financial hardship
• A CUP is not a variance — it is for uses anticipated by the zoning code under certain conditions, not exceptions to the code
• Spot zoning is generally illegal; don't confuse it with legitimate rezoning or conditional use permits
• The Board of Adjustment grants variances — not the city council or planning commission
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Section 3: Nonconforming Uses
Definition
A nonconforming use is a land use or structure that was lawfully established before a zoning ordinance was enacted but no longer complies with current zoning regulations.
• Must have been legal when established — illegal uses cannot become nonconforming
• Generally allowed to continue operating ("grandfathered in")
• Cannot be expanded or intensified
What Happens When a Nonconforming Structure Is Destroyed?
Under most zoning ordinances:
• If destroyed beyond a threshold (commonly 50% of its assessed or replacement value), the owner cannot rebuild as a nonconforming use
• The new structure must comply with current zoning regulations
> Think of it this way: destruction ends the nonconforming status.
Amortization of Nonconforming Uses
Amortization is a zoning technique that gives property owners a set period of time to phase out a nonconforming use.
• After the amortization period ends, the use must cease or be brought into compliance
• Considered more fair than immediate elimination
• Validity varies by state — some states allow it; others do not
Key Terms
• Nonconforming use — lawful pre-existing use that no longer complies with current zoning
• Grandfathered use — common term for a legal nonconforming use
• Amortization — phase-out period given to eliminate nonconforming uses over time
• 50% rule — common threshold at which a destroyed nonconforming structure cannot be rebuilt as nonconforming
⚠️ Watch Out For
• Nonconforming uses must have been legal when established — this is critical
• Owners cannot expand nonconforming uses, even if they were there first
• Destruction typically terminates nonconforming status — the 50% threshold is a common exam fact
• Don't confuse amortization (phase-out period) with a variance (permission to deviate)
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Section 4: Government Land Use Powers
Eminent Domain
Eminent domain is the government's power to take private property for public use.
Constitutional requirements (5th Amendment):
1. The taking must be for public use
2. The owner must receive just compensation (fair market value)
The formal process of exercising eminent domain is called condemnation.
Inverse Condemnation
Inverse condemnation is a legal action filed by the property owner when:
• Government action damages or effectively takes property
• No formal condemnation proceedings were initiated
• No just compensation was paid
> Example: Government flooding of private land due to a dam project — owner sues to receive compensation.
Regulatory Taking
A regulatory taking occurs when a government regulation:
• Restricts property use so severely that it destroys the property's economic value
• Does not physically seize the property
• May still require just compensation under the 5th Amendment
Difference from physical taking:
| Type | Government Action | Compensation Required? |
|------|------------------|----------------------|
| Physical taking | Physically seizes or occupies property | Yes |
| Regulatory taking | Regulation destroys economic value | Yes (if sufficiently severe) |
| Ordinary regulation | Limits some uses but value remains | Generally no |
Comprehensive Plan (Master Plan)
A comprehensive plan (also called a master plan or general plan) is a long-range policy document guiding a community's future development.
• Addresses: land use, transportation, housing, public facilities, environment
• Zoning ordinances are meant to implement the comprehensive plan
• It is not a zoning ordinance itself — it is a policy guide
Key Terms
• Eminent domain — government power to take property for public use with just compensation
• Just compensation — fair market value paid when government takes property
• Condemnation — formal legal process of exercising eminent domain
• Inverse condemnation — owner-initiated lawsuit when government action takes/damages property without compensation
• Regulatory taking — regulation so restrictive it effectively takes property value
• Comprehensive plan — long-range planning document guiding land use decisions
⚠️ Watch Out For
• Eminent domain requires both public use AND just compensation
• Inverse condemnation = owner sues the government (reversed direction from normal condemnation)
• The comprehensive plan guides zoning but is not itself a zoning law — it has no direct regulatory force
• A regulatory taking does not require physical occupation of the property
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Section 5: Private Land Use Controls
Deed Restrictions (Restrictive Covenants)
A deed restriction (also called a restrictive covenant) is a private limitation placed in a deed restricting how property may be used.
Public Zoning vs. Private Deed Restrictions:
| Feature | Zoning | Deed Restrictions |
|---------|--------|-------------------|
| Imposed by | Government | Private parties |
| Enforced by | Government agencies | Neighboring owners, HOAs |
| Found in | Zoning ordinance | Deed or subdivision plat |
| Authority | Police power | Contract/property law |
Running With the Land
A deed restriction that runs with the land binds:
• The current owner
• All future owners — automatically transferred with each sale
> This means buyers take property subject to existing deed restrictions whether or not they are aware of them — always check the deed!
When Zoning and Deed Restrictions Conflict
The MORE RESTRICTIVE provision governs.
• A property owner must comply with both the zoning ordinance and applicable deed restrictions
• The stricter limitation controls in all cases
> Example: Zoning allows commercial use, but deed restriction says residential only → residential use controls
Setback Requirements
A setback is the minimum distance a structure must be built from a property line, street, or other boundary.
• Can be imposed by both zoning ordinances (public) and deed restrictions/subdivision plats (private)
• The more restrictive setback governs if they differ
• Common types: front setback, rear setback, side setback
Key Terms
• Deed restriction — private limitation in a deed restricting property use
• Restrictive covenant — another term for a deed restriction
• Runs with the land — restriction binds current and all future owners
• HOA (Homeowners Association) — private body that enforces deed restrictions in a subdivision
• Setback — minimum required distance from a property line or boundary
• Subdivision plat — recorded map of a subdivision showing lots, streets, and restrictions
⚠️ Watch Out For
• Deed restrictions are private, not governmental — they cannot be challenged as a violation of police power
• When zoning and deed restrictions conflict, always apply the more restrictive rule
• "Runs with the land" means future buyers are bound automatically — ignorance is not a defense
• Deed restrictions can be more restrictive than zoning but cannot violate state or federal law (e.g., cannot discriminate based on race — Fair Housing Act)
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Quick Review Checklist
Use this checklist to confirm you can answer each point before your exam:
Zoning Fundamentals
• [ ] Identify police power as the legal basis for zoning
• [ ] Recognize R, C, I district classifications and what numbers indicate
• [ ] Explain the significance of Village of Euclid v. Ambler Realty (1926)
• [ ] Define buffer zone and its purpose
• [ ] State that Houston, TX has no traditional zoning ordinance and explain why it's unique
Variances & Special Permits
• [ ] Distinguish use variance from area variance
• [ ] Identify the Board of Adjustment as the body granting variances
• [ ] Explain conditional use permits and when they apply
• [ ] Define spot zoning and explain why it is generally illegal
Nonconforming Uses
• [ ] Define nonconforming use and explain the grandfathering principle
• [ ] Apply the 50% destruction rule to nonconforming structure scenarios
• [ ] Explain amortization as a technique to phase out nonconforming uses
Government Powers
• [ ] State the 5th Amendment requirements for eminent domain (public use + just compensation)
• [ ] Distinguish inverse condemnation from regular condemnation (who initiates)
• [ ] Explain regulatory taking and how it differs from physical taking
• [ ] Describe the purpose and nature of a comprehensive plan
Private Controls
• [ ] Distinguish deed restrictions from zoning (private vs. public; how enforced)
• [ ] Explain what it means for a restriction to run with the land
• [ ] Apply the rule: more restrictive provision governs when zoning and deed restrictions conflict
• [ ] Define setback and identify who can impose one
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Good luck on your Texas Real Estate Salesperson Exam! Focus especially on Texas-specific rules (Houston's unique approach), the distinction between public and private controls, and the vocabulary for variances and nonconforming uses — these are high-frequency exam topics.