In This Guide
1The Three Approaches
Professional appraisers use three methods. Understanding all three makes you a better investor:
1. Sales Comparison Approach (Comps) Most common for residential. Compares to similar recently sold properties.
2. Income Approach Used for investment properties. Values based on income potential.
3. Cost Approach Land value plus cost to rebuild. Used for unique properties or new construction.
For investors, the sales comparison and income approaches are most relevant.
2Comparable Sales Analysis
Finding Good Comps: - Sold within last 6 months (3 months preferred) - Within 0.5-1 mile radius - Similar size (within 20% square footage) - Same bedroom/bathroom count - Similar age and condition - Same neighborhood classification
Making Adjustments: - Add/subtract value for differences - Extra bedroom: +$10,000 (market dependent) - Extra bathroom: +$5,000-10,000 - Updated kitchen: +$10,000-20,000 - Larger lot: +$2,000-10,000 - Pool: +$10,000-25,000
Example: Subject Property: 3/2, 1,500 sf, needs updating Comp 1: 3/2, 1,600 sf, updated, sold $220,000 Adjustments: -$5,000 (size), -$15,000 (condition) Adjusted Value: $200,000
3Income Approach (Cap Rate)
The Cap Rate Formula: Cap Rate = Net Operating Income (NOI) ÷ Property Value
Rearranged to Find Value: Value = NOI ÷ Cap Rate
Example: Annual Gross Rent: $24,000 Operating Expenses: -$8,000 NOI: $16,000 Market Cap Rate: 8% Estimated Value: $16,000 ÷ 0.08 = $200,000
Cap Rate Benchmarks: - A-class: 4-6% - B-class: 6-8% - C-class: 8-12% - Multi-family: varies by market
Limitations: - Doesn't account for financing - Assumes current income is accurate - Market cap rates can shift
4Gross Rent Multiplier (GRM)
A quick valuation shortcut:
Formula: GRM = Property Price ÷ Annual Gross Rent Property Value = Annual Gross Rent × Market GRM
Example: Annual Rent: $24,000 Market GRM: 8 Estimated Value: $24,000 × 8 = $192,000
Typical GRMs: - Cash flow markets: 6-10 - Appreciation markets: 12-20+ - Most markets: 8-15
Pros: - Quick screening tool - Easy to calculate - Good for comparing similar properties
Cons: - Ignores operating expenses - Assumes similar expense ratios - Less accurate than cap rate
5After Repair Value (ARV)
For properties needing work, ARV is what matters:
ARV = Value After All Improvements Completed
Calculating ARV: 1. Find comps in similar condition to your end product 2. Adjust for remaining differences 3. Be conservative—lenders won't finance based on optimistic ARVs
The 70% Rule for Flips: Maximum Purchase = (ARV × 70%) - Repair Costs
Example: ARV: $250,000 Repair Costs: $40,000 Maximum Purchase: ($250,000 × 0.70) - $40,000 = $135,000
Why 70%? Leaves room for: - Carrying costs (6-12 months) - Transaction costs (buying and selling) - Profit margin (10-15%) - Unexpected expenses