Learning Objectives

By the end of this lesson you will be able to:

• Explain the three methods used to determine real estate value
• Describe how residential and commercial properties are valued differently
• Interpret an appraisal report and identify its key components
• Recognize common appraisal mistakes and how they affect transactions
• Use valuation knowledge to negotiate better deals

Core Content

How Property Value Is Determined

There is no single universally agreed price for any property. Value is determined by the market—by buyers and sellers agreeing to transact. Appraisers, algorithms, and tax assessors provide estimates, but the actual value is established only when a sale closes.

That said, three formal methods are used to estimate value:

Method 1: Sales Comparison Approach (Residential)

The most common approach for residential property (1–4 units). The appraiser:

1. Identifies recently sold properties that are similar to the subject property (comparable sales, or "comps")
2. Adjusts for differences: square footage, condition, lot size, location, age, number of bedrooms and bathrooms, amenities
3. Arrives at an adjusted price per square foot or adjusted sale price for each comp
4. Reconciles the comps into a final value estimate for the subject property

Method 2: Income Approach (Commercial and Multifamily)

Properties that generate income are valued based on that income:

Value = NOI ÷ Cap Rate

The appraiser determines the appropriate cap rate for the market and property type, then divides the NOI to arrive at value.

This is the dominant method for:

• Apartment buildings (5+ units)
• Office, retail, and industrial properties
• Self-storage facilities
• Any income-producing commercial property

Method 3: Cost Approach

The cost approach estimates value as:

Value = Land Value + (Replacement Cost of Improvements - Depreciation)

This method is most useful for:

• New construction
• Special purpose properties with few comparable sales
• Insurance valuation

Understanding an Appraisal Report

A formal appraisal report contains:

• Subject Property Information — address, legal description, property type, effective date of appraisal
• Neighborhood Analysis — supply/demand trends, employment, amenities, trends (improving/stable/declining)
• Site Analysis — lot size, zoning, topography, utilities, flood zone status
• Improvement Description — age, condition, design, materials, room count, gross living area
• Comparable Sales Grid — three to six recent sales with adjustments
• Reconciled Value Conclusion — the final appraised value with rationale
• Certifications and Limiting Conditions — the appraiser's professional disclosures

How Appraisals Affect Transactions

When a buyer uses financing, the lender requires an appraisal to confirm the property is worth the loan amount.

If the appraised value comes in below the agreed purchase price:

• The buyer can pay the difference in cash (closing the "appraisal gap")
• The seller can reduce the price to the appraised value
• The parties can meet in the middle
• The deal can fall apart

Common Appraisal Issues

Appraisal creep — appraisers sometimes find value based on the contract price rather than independent analysis. This is called "hitting the number" and it is a known bias.

Stale comps — in fast-moving markets, comps from 6 months ago undervalue current property. Provide the appraiser with recent data proactively.

Incorrect square footage — appraisers measure properties, but they can make errors. Review the GLA carefully.

Missing adjustments — if the appraiser did not adjust for a significant feature (new roof, updated kitchen), the value may be understated.

Geographic bias — appraisers unfamiliar with a specific submarket may undervalue properties. Request a local appraiser whenever possible.

Using Valuation to Negotiate

Understanding valuation gives investors leverage:

When buying:

• Know the comparable sales before making an offer
• Use income approach calculations to justify a lower price based on cap rate expectations
• If the appraisal comes in low, use it to renegotiate

• Increase NOI before listing to justify a higher income-based value
• Provide comps that support your price to the listing appraiser
• Complete minor improvements that lenders' appraisers commonly flag

• Increase rents and reduce vacancy before the appraisal
• Provide the appraiser with a rent roll and expense statement
• Identify comps that support a higher value

Application

For a property you have been analyzing:

1. Research three recent comparable sales within one mile with similar size and condition
2. What is the implied value per square foot based on those comps?
3. If you are analyzing a multifamily property, calculate the income-based value using a cap rate from your market research
4. Do the sales comparison and income approaches produce consistent values? If not, why might they differ?