1. Introduction

In valuation, the value of land and buildings does not remain constant over time. It may either increase (appreciation) or decrease (depreciation) depending on physical, economic, and environmental factors.

Understanding appreciation and depreciation is essential for:

• Property valuation
• Cost estimation
• Financial planning
• Urban development decisions

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2. Appreciation

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2.1 Definition

Appreciation is the increase in the value of land or property over time.

👉 It reflects the gain in property value due to favorable conditions.

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2.2 Causes of Appreciation

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1. Location Advantage

• Proximity to city center, metro stations, TOD zones
• Better accessibility increases value

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2. Infrastructure Development

• Roads, metro, water supply, sewerage
• Public investments raise land value

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3. Economic Growth

• Increase in income levels
• Higher demand for property

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4. Population Growth

• Increased demand for housing
• Leads to higher land prices

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5. Change in Land Use

• Conversion from agricultural to residential/commercial
• Significant increase in value

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6. Government Policies

• Smart city projects
• TOD policies
• Value capture financing

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7. Scarcity of Land

• Limited supply increases price

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2.3 Formula for Appreciation

$Future\ Value = Present\ Value \times (1 + r)^n$Future Value=Present Value×(1+r)n

Where:

• $r$r = appreciation rate
• $n$n = number of years

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Example

• Present value = ₹10,00,000
• Rate = 10%
• Time = 2 years

$$Future\ Value = 10,00,000 \times (1.1)^2 = ₹12,10,000$$Future Value=10,00,000×(1.1)2=₹12,10,000

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2.4 Importance of Appreciation

• Encourages investment
• Increases wealth of property owners
• Supports urban development financing
• Important in TOD and land value capture

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3. Depreciation

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3.1 Definition

Depreciation is the decrease in the value of a building or property over time due to wear, tear, or obsolescence.

👉 Mostly applicable to buildings (not land)

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3.2 Causes of Depreciation

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1. Physical Deterioration

• Wear and tear
• Aging of materials

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2. Functional Obsolescence

• Outdated design
• Poor layout

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3. Economic Obsolescence

• Decline in surrounding area
• Reduced demand

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4. Environmental Factors

• Pollution
• Flood-prone areas

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5. Lack of Maintenance

• Poor upkeep reduces value

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3.3 Methods of Calculating Depreciation

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1. Straight Line Method

$Depreciation = \frac{Cost – Scrap\ Value}{Life}$Depreciation=LifeCost−Scrap Value​

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Example

• Cost = ₹10,00,000
• Scrap value = ₹1,00,000
• Life = 30 years

$$Depreciation = \frac{9,00,000}{30} = ₹30,000/year$$Depreciation=309,00,000​=₹30,000/year

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2. Declining Balance Method

$$Value = Cost \times (1 – r)^n$$Value=Cost×(1−r)n

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3. Sinking Fund Method

• Uses compound interest principles
• Funds accumulated for replacement

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3.4 Importance of Depreciation

• Helps determine actual property value
• Important for taxation and accounting
• Used in valuation and insurance
• Helps in maintenance planning

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4. Comparison: Appreciation vs Depreciation

Aspect	Appreciation	Depreciation
Meaning	Increase in value	Decrease in value
Applies to	Land & buildings	Mainly buildings
Nature	Positive	Negative
Causes	Growth, demand	Wear, obsolescence
Impact	Wealth increase	Value reduction

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5. Combined Effect in Property Valuation

• Land value → usually appreciates
• Building value → depreciates over time

👉 Total property value depends on:$$Total\ Value = Land\ Value + Building\ Value$$Total Value=Land Value+Building Value

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6. Role in Urban Planning

• Helps in land use decisions
• Supports TOD development strategies
• Influences property taxation and redevelopment
• Guides investment and infrastructure planning

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7. Practical Example

• Land value increases due to metro (appreciation)
• Old building deteriorates (depreciation)

👉 Net effect depends on balance between both

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8. Conclusion

Appreciation and depreciation are fundamental concepts in valuation that reflect changes in property value over time. While appreciation enhances land value due to development and demand, depreciation reduces building value due to aging and obsolescence. Understanding both is essential for accurate valuation, investment decisions, and sustainable urban planning.