A site with a grade sloping more than 10% would be considered:
Correct Answer
C) Steeply sloped
Sites with slopes exceeding 10% are generally considered steeply sloped, which can increase development costs and limit building placement options, affecting site value.
Why This Is the Correct Answer
Sites with slopes exceeding 10% are generally considered steeply sloped, which can increase development costs and limit building placement options, affecting site value.
Why the Other Options Are Wrong
Option A: Ideal for most development
Sites with slopes over 10% are definitely not ideal for most development due to increased construction costs, drainage challenges, and building placement limitations. Steep slopes require specialized engineering solutions, retaining walls, and often result in higher development costs that can significantly impact property value.
Option B: Moderately sloped
A slope exceeding 10% goes beyond the moderate classification, which typically applies to slopes between 5-10%. Moderately sloped sites are generally more manageable for development than sites with slopes over 10%.
Option D: Level
Level sites have minimal slope (typically 0-2%), which is the opposite of a site sloping more than 10%. Level sites are generally the most desirable for development due to lower construction costs and fewer engineering challenges.
The 10% Steep Street Rule
Remember 'TEN PERCENT = STEEP STREET' - if you wouldn't want to ride a bike up a street with more than 10% grade because it's too steep, then it's classified as steeply sloped for development purposes too.
How to use: When you see any slope percentage over 10% in a question, immediately think 'steep slope' and consider the associated development challenges and increased costs.
Exam Tip
Always pay attention to the specific percentage given in slope questions - 10% is the key threshold that separates moderate from steep slopes.
Common Mistakes to Avoid
- -Confusing slope percentages with angle degrees
- -Thinking moderate slopes can exceed 10%
- -Not considering the impact of steep slopes on development costs and property value
Concept Deep Dive
Analysis
Site topography and slope percentage are critical factors in real estate appraisal as they directly impact development costs, construction feasibility, and property value. The classification of slopes follows industry standards where level sites (0-2%), gentle slopes (2-5%), moderate slopes (5-10%), and steep slopes (over 10%) each present different challenges and opportunities for development. Understanding these classifications helps appraisers assess site utility, drainage requirements, foundation costs, and overall development potential. Steep slopes over 10% typically require specialized engineering, retaining walls, and may limit building placement options significantly.
Background Knowledge
Real estate appraisers must understand standard slope classifications: level (0-2%), gentle (2-5%), moderate (5-10%), and steep (over 10%). These classifications directly impact site utility, development costs, and property values in the appraisal process.
Real-World Application
When appraising hillside properties, appraisers must consider how slopes over 10% affect construction costs, require special permits, limit building footprints, and may necessitate expensive retaining walls or specialized foundations, all of which impact the final property value assessment.
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