Calculate adjusted comparable property values for CMA analysis. Add or subtract adjustments for features, size, condition, and location differences.
A Comparative Market Analysis (CMA) is the foundation of accurate home pricing. It works by finding recently sold properties similar to yours, then adjusting their sale prices to account for differences in features, size, condition, and location. The adjusted values indicate what your property would likely sell for in the current market.
This calculator provides a systematic CMA adjustment worksheet. Enter a comparable property's sale price, then add or subtract dollar adjustments for each meaningful difference. Positive adjustments increase the comp's adjusted value (your home has something better), and negative adjustments decrease it (the comp had something better than yours).
Common adjustments include square footage differences ($50–$150 per sqft), bedroom/bathroom count, garage capacity, lot size, condition, updates, location quality, and view. The goal is to transform each comp's actual sale price into what it would have sold for if it had the same features as your property.
Homebuyers, investors, and real-estate professionals all benefit from precise cma input figures when evaluating properties, negotiating deals, or planning long-term investment strategies. Save this calculator and revisit it whenever market conditions or your financial situation changes.
Raw comparable sale prices can be misleading if the properties differ significantly from yours. A $400,000 comp that has a finished basement your home lacks might indicate your true value is $375,000. This calculator formalizes that adjustment process, producing a more accurate market value estimate. Instant recalculation lets you compare scenarios side by side, so every buying, selling, or investment decision is grounded in solid financial analysis.
Adjusted Comp Value = Sale Price + Σ(Feature Adjustments) Positive adjustment = Your home has a superior feature Negative adjustment = Comp has a superior feature
Result: $409,500 adjusted comp value
The comp sold for $395,000. Your home is 150 sqft larger (+$7,500), has an extra half bath (+$5,000), lacks a 2-car garage vs comp's (−$8,000), and has a remodeled kitchen (+$10,000). Net adjustment: +$14,500, giving an adjusted comp value of $409,500.
Adjustments in a CMA always go in the direction that makes the comp look more like your property. If your home is larger, you add square footage value to the comp (increasing its adjusted price). If the comp has a pool and yours doesn't, you subtract the pool's value (decreasing the adjusted price). This process normalizes all comps to your home's features.
The main categories are: physical characteristics (size, bedrooms, bathrooms, garage), condition and updates (kitchen, bathrooms, roof, HVAC age), location (proximity to amenities, traffic, views), and time (market appreciation or depreciation since the comp sold). Each category has different typical adjustment ranges.
CMAs estimate market value based on past sales. They can't predict future market shifts, capture unique features buyers may pay premiums for, or account for emotional factors in home buying. Use the CMA as a starting point, then factor in current market conditions and your agent's professional judgment.
A Comparative Market Analysis (CMA) estimates a home's value by comparing it to recently sold similar properties. Real estate agents prepare CMAs to help sellers set list prices and buyers make offers. It's similar to an appraisal but less formal.
Adjustment amounts vary by market. Common rules of thumb: $50–$150 per square foot difference, $5,000–15,000 per bedroom, $3,000–10,000 per bathroom, $5,000–20,000 for garage. Your agent or a local appraiser can provide market-specific values.
Use 3–5 comparable sales. Three is the minimum for reliable analysis. More than 5 comps dilute the analysis unless they're all very similar. Quality matters more than quantity — one highly similar comp is worth more than three marginally comparable ones.
Ideal comps are within 0.5–1 mile, sold within 3 months, similar in size (±10%), same bedroom/bathroom count, similar age and style, and in the same school district. The closer the match, the fewer adjustments are needed and the more reliable the estimate.
If net adjustments exceed 20–25% of the sale price, the comp is probably too dissimilar to be useful. Look for better comparables. Large adjustments introduce significant estimation error and reduce the reliability of the adjusted value.
Yes, if a comp sold 3–6 months ago in a rising market, add a time adjustment (typically 0.5–1% per month of appreciation). In a declining market, subtract accordingly. Only use this for comps that are otherwise the best matches but older.