ARV Estimator (After-Repair Value)

About the ARV Estimator (After-Repair Value)

The after-repair value (ARV) is the estimated market value of a property after all planned renovations are complete. It's the single most important number in a fix-and-flip deal because every other calculation — your maximum offer price, profit projection, and financing terms — depends on getting the ARV right.

This estimator uses the comparable sales approach, the same method real estate appraisers use. You input 3–5 recently sold, renovated properties that are similar in size, location, and quality to what your subject property will look like after renovation. The calculator averages these comp prices, with optional adjustments for differences in square footage, bedrooms, or lot size.

An accurate ARV requires discipline: use only truly comparable properties (similar size, style, location, and renovation level) sold within the last 6 months. Overestimating ARV is the most common and most costly mistake in house flipping.

Homebuyers, investors, and real-estate professionals all benefit from precise arv estimator (after-repair value) 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.

When This Page Helps

ARV drives every decision in a flip. Overestimate by 10% and your projected $40,000 profit becomes a $5,000 loss. This calculator structures your comp analysis, averages the data, and gives you a defensible ARV to base your offer and budget on.

How to Use the Inputs

1. Research 3–5 comparable renovated sales near your subject property.
2. Enter each comp's sale price in the calculator.
3. Optionally enter square footage for each comp and the subject property to compute price per square foot.
4. Review the average ARV and price-per-sqft range.
5. Use the ARV to calculate your maximum offer price with the 70% rule.

Example Calculation

Tips & Best Practices

• Use only comps sold within the last 6 months and within 0.5 miles of the subject.
• Match the renovation level — don't compare a basic cosmetic flip to a high-end gut rehab.
• Adjust for significant differences: $5,000–15,000 per bedroom, $10–30 per square foot.
• More comps is better — 3 is the minimum, 5 gives you more confidence.
• Discard outliers that are 15%+ above or below the cluster.
• Verify comp data on the MLS or county records, not just Zillow estimates.

Why ARV Matters More Than Any Other Number

Every calculation in a flip flows from the ARV. Your maximum offer price (usually 70% of ARV minus repairs), your profit projection, your lender's loan amount — all depend on this single estimate. A 5% error in ARV can swing your deal from profitable to unprofitable.

The Comparable Sales Method

Professional appraisers use three approaches to value: sales comparison, cost, and income. For residential flips, the sales comparison approach is most reliable. Find properties that sold recently, in the same neighborhood, with similar renovations to what you plan, and use their prices to estimate what yours will sell for.

Common ARV Mistakes

New flippers often cherry-pick the highest comp and call it the ARV. They use comps that are too far away, too old, or too different in quality. They compare their basic flip to a custom high-end renovation. Always be conservative — it's better to be pleasantly surprised by a higher sale price than to lose money because you were optimistic.

Frequently Asked Questions

• What is ARV in real estate?

  ARV stands for After-Repair Value. It's the estimated market value of a property after all planned renovations are complete. Flippers, wholesalers, and hard money lenders all use ARV to evaluate deals and determine maximum offer prices.

• How many comps do I need?

  A minimum of 3 comparable sales is standard, but 4–5 comps provide more reliable estimates. The more data points you have, the less impact a single outlier has on your ARV. If you can't find 3 comps, the property may be too unique or the market too thin to flip confidently.

• What makes a good comparable sale?

  A good comp is a recently sold property (within 6 months) that is similar in location (within 0.5 miles), size (within 20% of square footage), style (same property type), age, and renovation level. The closer the match, the more reliable your ARV.

• Should I use price per square foot or total price?

  Both methods have value. Price per square foot normalizes for size differences and works well when comps vary in size. Total price works when comps are very similar to your subject. This calculator shows both so you can triangulate your estimate.

• How do I adjust comps for differences?

  Common adjustments: add or subtract $5,000–15,000 per bedroom difference, $3,000–8,000 per bathroom, $10–30 per square foot for size differences, and $10,000–30,000 for garage or lot size variations. Your local market determines exact adjustment amounts.

• What happens if I overestimate ARV?

  Overestimating ARV is the top reason flips fail. If your ARV is 10% too high on a $350,000 property, that's $35,000 of phantom profit. You'll overpay for the property, budget too aggressively, and end up selling at a loss or holding for months waiting for a buyer.