A LiDAR survey supplies site dimensions and elevations but develops no opinion of property value. How should it be used in a market-value appraisal?
Correct Answer
D) Use suitable verified measurements as inputs; an appraiser must still develop the required value opinion.
Measurements may be useful property information, but describing geometry is different from developing a supported opinion of value. The appraiser assesses whether the measurements are reliable and relevant and performs the analysis required for the assignment. This distinction concerns the substance of the service, not whether the report uses the particular words market value.
Why This Is the Correct Answer
Option D is correct because suitable, verified LiDAR measurements can serve as inputs, but the appraiser must still develop the required value opinion. An appraisal is the act or process of developing an opinion of value, and the appraiser must collect, verify and analyze the information necessary for credible results. Describing geometry is not valuation.
Why the Other Options Are Wrong
Option A: Treat the measured geometry as a completed appraisal because it identifies the parcel, its size and its elevations.
Option A treats the measured geometry as a completed appraisal because it identifies the parcel, its size and elevations. Identifying physical characteristics is property description, not the development of a value opinion.
Option B: Treat the survey’s fee as an indication of the property’s market value.
Option B treats the survey's fee as an indication of market value. The fee for a survey service reflects the cost of the measurement work and has no direct relation to the property's market value.
Option C: Omit value development because measurement is equivalent to valuation.
Option C says value development can be omitted because measurement is equivalent to valuation. Measurement and valuation are different; the appraiser must still develop the value opinion.
Measure is not value
A tape measure tells you how big; only analysis tells you how much. LiDAR is a very precise tape measure.
How to use: Use this when a question offers technology output as a replacement for value analysis.
Exam Tip
New data technologies support appraisals but do not replace the value analysis. Choose answers that use data as inputs while keeping the appraiser's development role.
Common Mistakes to Avoid
- -Treating a precise survey as a completed appraisal
- -Using a survey's cost or fee as an indication of value
- -Relying on measurement data without assessing its reliability
Concept Deep Dive
Analysis
This question tests the distinction between measuring property characteristics and developing a value opinion. A LiDAR survey can supply useful site data, but an appraisal is the act or process of developing an opinion of value. The appraiser uses reliable measurements as inputs and still performs the required analysis.
Background Knowledge
Technologies such as LiDAR, drones and aerial imagery can supply accurate physical data for site analysis. USPAP defines an appraisal as the act or process of developing an opinion of value. Data inputs must be assessed for reliability and relevance before the appraiser analyzes them to reach a value conclusion.
Real-World Application
An appraiser valuing a sloped vacant parcel obtains a LiDAR survey showing precise contours. The appraiser checks the survey's reliability, uses the topography to assess usable area and development cost, and then analyzes comparable land sales. The survey informs the analysis but does not provide the value.
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