Comparative Market Analysis Calculator

Estimate property value using comparable property sales with adjustments for features and square footage.

Comparable Property 1

Comparable Property 2

Comparable Property 3

Enter values and calculate.

How it works

Adjusts comparable sale prices for differences, calculates price per square foot, and estimates subject property value based on weighted average of comparables.

Example

3 comps at $150-170/sq ft after adjustments × 2,000 sq ft subject = $320,000 estimated value.

FAQ

How many comparable properties should I use?

Use 3-6 comparable properties that sold within the last 3-6 months, are within 0.5-1 mile, and are similar in size and features.

What adjustments should I make to comparable sales?

Adjust for differences in square footage, lot size, bedrooms, bathrooms, age, condition, location, and special features like pools or garages.

How do I determine adjustment amounts?

Use local market data, recent sales showing value differences, or appraiser guidelines. Common adjustments: $10-50/sq ft, $5,000-15,000 per bathroom, $2,000-8,000 per bedroom.

How recent should comparable sales be?

Ideally within 3-6 months. In stable markets, up to 12 months may be acceptable. In rapidly changing markets, use more recent sales.

Should I include pending or active listings?

Focus on closed sales for accuracy. Pending sales can provide additional context, but active listings show asking prices, not market values.