Which statement about surface, above-surface and sub-surface property rights is correct?
Correct Answer
C) Rights may exist in the surface, the space above and the subsurface, and each may be owned separately.
Surface, airspace and subsurface interests can be separately defined or conveyed under applicable law and documents. Identify the actual rights and limitations included in the assignment; do not infer unlimited air use, mineral ownership, access or perpetual rights from land ownership alone.
Why This Is the Correct Answer
Option C is correct because real estate includes the surface area, the above-surface space and the sub-surface space, and property rights may exist in each of these levels. Each of these rights may be owned or possessed separately. The appraiser identifies which rights are actually included in the assignment.
Why the Other Options Are Wrong
Option A: Air and subsurface rights cannot be held apart from the surface estate under any deed, lease or easement.
Option A is wrong because it says air and subsurface rights cannot be held apart from the surface estate under any deed, lease or easement. These rights can be owned or possessed separately, as with sold air rights or severed mineral rights.
Option B: Subsurface rights end at a depth of ten feet below grade unless a mineral lease extends them.
Option B is wrong because it claims subsurface rights end at a depth of ten feet below grade unless a mineral lease extends them. There is no such general ten-foot limit; the extent of subsurface rights depends on the applicable documents and law.
Option D: Air rights exist for aircraft overflight corridors regulated by local zoning, not for building.
Option D is wrong because it says air rights exist only for aircraft overflight corridors regulated by local zoning, not for building. Air rights can be owned, sold or used for development, such as building above an existing structure.
Above, on, below: three layers
Think of real estate as a three-layer cake: air, surface and subsurface, and each layer can be sold separately.
How to use: Use this when a question asks whether air, surface or subsurface rights can be separated.
Exam Tip
Be skeptical of options that invent fixed depth limits or say rights can never be separated.
Common Mistakes to Avoid
- -Assuming surface ownership always includes mineral rights
- -Believing air rights cannot be sold separately
- -Inventing a fixed depth limit for subsurface rights
Concept Deep Dive
Analysis
This question tests the concept that real estate has three spatial levels, each of which can carry property rights. Rights in the surface, the space above it and the space below it can be owned or possessed separately. The wrong options invent limits or deny that separation is possible.
Background Knowledge
Land ownership traditionally extends to the surface, the space above and the earth below, subject to legal limits such as public airspace for aviation. These rights can be divided, for example by selling air rights for development or conveying mineral rights to another party. Appraisers must identify the rights included in the property being appraised.
Real-World Application
An appraiser values a rural parcel where a prior owner sold the mineral rights decades ago. The appraiser confirms from the title report that the subject includes only the surface and air rights and appraises that interest.
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