How to Calculate ARV (After Repair Value) in Real Estate

What Is ARV in Real Estate?

ARV stands for After Repair Value: the estimated market value of a property once all planned renovations are complete. It is not the current as-is value, and it is not the replacement cost. ARV reflects what a buyer would pay for the finished product on the open market.

ARV matters because every other number in a deal flows from it. Your maximum offer price, expected profit, loan amount, and go/no-go decision all depend on it. If the ARV is wrong, every calculation built on top of it is wrong too.

The National Association of Realtors (NAR) reports over 600,000 active house flippers in the United States, and the vast majority rely on ARV calculations to evaluate deals before making offers.

Who Uses ARV?

ARV is used by virtually every type of real estate investor:

• House flippers use ARV to calculate profit potential and determine their maximum offer price using the 70% rule
• BRRRR investors use ARV to estimate how much equity they can pull out during the refinance stage
• Wholesalers use ARV to market deals to their buyer list and set assignment fees
• Hard money lenders use ARV to determine loan-to-value ratios and maximum loan amounts (typically 65-75% of ARV)
• Rental investors use ARV to assess whether a property will appraise high enough after renovation to support a conventional refinance

What Is the ARV Formula?

The ARV formula is straightforward: take the average adjusted sale price of comparable properties (comps) that have already been renovated to a similar standard as your planned renovation.

In practice, most investors use three to six recent comparable sales within a half-mile radius that sold in the last 90-180 days. Each comp is then adjusted for differences in square footage, bedroom and bathroom count, lot size, condition, and location.

Step 1: Find Comparable Sales (Comps)

The foundation of any ARV calculation is finding the right comparable sales. A good comp meets these criteria: sold within the last 6 months, located within 0.5-1 mile of the subject property, similar in size (within 20% of square footage), same property type, and in similar post-renovation condition.

You can find comps through the MLS (if you have access), public records from the county assessor, real estate listing sites like Zillow and Redfin, or automated tools like PropLab that pull comp data automatically.

According to ATTOM Data Solutions, investors who analyze at least five comparable sales per deal achieve significantly more accurate valuations than those who rely on fewer data points.

Step 2: Adjust Each Comp for Differences

No two properties are identical, so you need to adjust each comp to account for differences from your subject property. Adjustments are added or subtracted from the comp's sale price.

Standard adjustments include: $20-50 per square foot for size differences, $3,000-10,000 per bedroom, $5,000-15,000 per bathroom, 5-15% for condition differences, and $5,000-20,000 for garage versus no garage. These figures vary by market, so always use local data.

• Square footage: Add/subtract $20-50 per sq ft depending on market
• Bedrooms: Add/subtract $3,000-10,000 per bedroom difference
• Bathrooms: Add/subtract $5,000-15,000 per bathroom difference
• Condition: Adjust 5-15% for renovation quality differences
• Garage: Add/subtract $5,000-20,000 for garage differences
• Lot size: Add/subtract $1-5 per square foot of lot difference

Step 3: Calculate the Average Adjusted Price

After adjusting all your comps, calculate the average adjusted sale price. This is your ARV. Many investors also calculate a weighted average, giving more weight to comps that are closer in proximity and more similar to the subject property.

For conservative underwriting, some investors discard the highest and lowest adjusted values and average the remaining comps. This helps eliminate outliers that could skew your estimate.

Step 4: Validate Your ARV

Before making an offer, validate your ARV by checking active listings in the area. If renovated properties similar to your planned finished product are listed at $300,000 but not selling, your ARV of $286,250 may still be too high.

Also consider market trends. In a declining market, the ARV based on past sales could overstate the property's future value. In an appreciating market, your ARV may actually be conservative. The U.S. Census Bureau reports that median home prices have appreciated an average of 4-6% annually over the past decade, though this varies significantly by market.

Common ARV Calculation Mistakes

The most frequent mistakes investors make when calculating ARV are using comps that are too far away, using outdated sales data (older than 6 months), failing to adjust for condition differences, cherry-picking high comps to justify a deal, and not accounting for market direction.

According to BiggerPockets, over-estimating ARV is the number one reason new investors lose money on their first flip. A conservative ARV estimate protects your downside and leaves room for unexpected costs.

ARV vs Other Property Valuations

ARV is different from the other valuations you will hear quoted on a property. The as-is value is what it is worth right now, before any repairs. The assessed value is what the county tax assessor assigns for property tax purposes, often well below market value. The appraised value is a licensed appraiser's opinion of current value. The replacement cost is what it would cost to rebuild from scratch.

ARV is the only one of these that is forward-looking. It estimates post-renovation market value from comparable sales, and it assumes a specific scope of renovation actually gets completed. Comps for as-is value should match the property's current condition; comps for ARV should be already-renovated properties.

Frequently Asked Questions

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