After Repair Value Calculator
Enter a US property address to estimate its after repair value (ARV) from comparable sales, then see your maximum allowable offer using the 70% rule.
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What Is After Repair Value (ARV)?
After repair value represents the estimated market value of a residential property once comprehensive renovations are complete. Real estate investors, house flippers, private lenders, and wholesalers rely on ARV to evaluate deal viability before committing capital. Rather than assessing a home in its current distressed state, after repair value establishes the potential resale ceiling based on recent renovated sales in the local submarket.
Using an after repair value calculator eliminates guesswork by evaluating local comparable sales. By weighting transactions by square footage similarity, proximity, and recency, the calculator provides an objective underwriting baseline. To see how regional comps feed our underwriting models, explore our primary after repair value calculator overview. Accurate ARV calculations help investors avoid overpaying while protecting target margins against unforeseen holding and renovation costs.
How the 70% Rule Works
The 70% rule is a standard formula used by investors to determine their Maximum Allowable Offer (MAO). The framework states that an investor should pay no more than seventy percent of the property's estimated after repair value, minus estimated renovation costs. This thirty percent margin cushions against acquisition costs, financing fees, holding expenses, and resale commissions.
Consider this illustrative example: an investor targets an off-market single-family property. Our after repair value calculator estimates an ARV of $300,000 based on nearby comps, and the investor scopes a $45,000 rehab. Applying the 70% formula:
Illustrative Calculation:
ARV ($300,000) × 70% = $210,000 baseline. Subtracting the $45,000 rehab budget yields an MAO of $165,000 ($210,000 − $45,000 = $165,000).
On this page, our instant estimate displays MAO assuming a baseline of $0 in rehab deductions, giving you the immediate raw purchase ceiling. While investors in high-demand markets may adjust to 75% or 80%, following the 70% rule prevents overleveraging.
How to Use This Calculator
Our after repair value calculator requires only a US property address to produce an initial valuation. Enter the property address above, complete the security check, and select Calculate ARV. The tool instantly queries local property archives to calculate a valuation range, a point estimate, and a 70% rule maximum allowable offer.
Calculating requires a free account — new accounts get 3 full reports included at no cost, with no credit card required. Each full report comes with an instant valuation range, sample comps from public records, custom rehab budgets, and exportable summaries. To learn more about selecting quality comps, explore the comps analysis guide on our blog.
Frequently Asked Questions
Common questions about our after repair value calculation methodology and property data.
What does this after repair value calculator do?
This tool provides an instant estimate of property value post-renovation by analyzing recent neighborhood comps, weighting square footage similarity, and applying the 70% rule to calculate your Maximum Allowable Offer.
Where does the property and comparable sales data come from?
Data comes from RentCast's database of over 150 million US properties, compiled from county deed registries and public transaction filings rather than a live MLS feed.
How is the Maximum Allowable Offer (MAO) calculated here?
MAO is calculated using the 70% rule: ARV multiplied by 0.70 minus rehab costs. This free tool displays MAO with a $0 rehab baseline to show your initial purchase ceiling.
Do I need an account or credits to use this tool?
Yes — a free account is required, and every new account includes 3 full reports at no cost, with no credit card required. Your reports come with adjustable rehab budgets, expanded comps, and exportable history.
How does this estimate compare to a licensed property appraisal?
Our calculator offers an algorithmic starting point for rapid deal screening from public records, not a certified appraisal. Consult a licensed appraiser for official lending requirements.
Can real estate wholesalers use this tool for deal evaluation?
Yes. Wholesalers use our calculations to find the maximum price end-buyers will pay under the 70% rule, ensuring viable room for assignment fees.
What is the difference between this free tool and full reports?
This free tool delivers instant valuations — your first report is free on signup. Full reports include detailed comp breakdowns, interactive rehab cost inputs, and downloadable reports.