What is After Repair Value in Real Estate?

Every flip lives or dies on one number, and it isn't the purchase price. It's the ARV, what the property will be worth after the work is done.

This guide covers what ARV means, how to calculate it from comps, the 70% rule investors use to set a maximum offer, and the mistakes that turn a paper profit into a real loss.

What is ARV in real estate?

ARV stands for after repair value: the estimated market value of a property once renovations and repairs are complete. After repair value is what a fixed-up property should sell for, not what it's worth today.

Flippers use ARV to decide what to pay. Lenders use it to size renovation loans, and hard money lenders in particular usually lend a percentage of ARV rather than the purchase price. Agents use it to price listings that need work and to talk investor clients out of overpaying. Today's condition sets the purchase price. The ARV sets the ceiling everything else has to fit under.

How do you calculate ARV?

You calculate ARV by finding what similar, already-renovated properties nearby have sold for, then adjusting for differences. ARV comes from comps, not from adding a guess about renovation value to today's price.

Here's the process:

1. Pull renovated comps. Find 3 to 5 recently sold properties in the same area that match the subject's size, bed and bath count, and lot, and that were in updated condition when they sold. This is a comparative market analysis, the same skill agents use to price any listing.
2. Keep them recent and close. Sales within the last 3 to 6 months, as close to the subject as possible. Old comps mislead in a moving market.
3. Adjust for differences. If a comp has an extra bathroom or a bigger garage, adjust its sold price down to match the subject. Fewer bedrooms, adjust up.
4. Average the adjusted prices. The adjusted average is your ARV. If renovated comps sold at $390,000, $400,000, and $410,000 after adjustments, your ARV is about $400,000.
5. Sanity-check per square foot. Divide comp prices by their square footage and multiply by the subject's. If the two methods disagree badly, your comps need another look.

Notice what's missing: repair costs. Repairs determine what you should pay, not what the finished property is worth. That's the next formula.

What is the 70% rule in house flipping?

The 70% rule says an investor should pay no more than 70% of the ARV, minus repair costs. The 70% rule is a quick formula for the maximum purchase price on a flip: (ARV × 0.70) − repair costs.

Take a property with a $400,000 ARV that needs $50,000 of work. The math: $400,000 × 0.70 = $280,000, minus $50,000 in repairs, gives a maximum offer of $230,000. The 30% margin isn't all profit. It has to cover holding costs, selling costs, surprises behind the drywall, and the investor's return.

Treat the rule as a screen, not a law. In expensive, competitive markets investors sometimes stretch to 75% or more and accept thinner margins, and in rough markets 70% can be too generous. It's the starting point for the conversation, which is exactly how it's used in a 10-minute deal screen.

ARV vs market value: what's the difference?

Market value is what the property is worth today, in its current condition. ARV is what it should be worth after renovations. The gap between the two, minus the cost of the work, is where a flip's profit lives.

If a dated house would sell for $300,000 as-is and comparable renovated homes sell for $400,000, the $100,000 spread is the opportunity. Whether it's a good deal depends on what closing that gap costs, in repairs, time, and transaction fees.

What are the most common ARV mistakes?

The most common ARV mistake is using comps that don't match the finished product. These are the errors that sink flips:

• Optimistic comps. Comparing your future 3-bed to the neighborhood's one stunning 5-bed sale inflates ARV and everything downstream.
• Stale comps. Sales from a year ago don't reflect today's market, in either direction.
• Skipping adjustments. A comp with a pool or an ADU isn't a comp until you adjust for it.
• Forgetting holding and selling costs. Six months of loan payments, taxes, insurance, and a commission on the exit all come out of that 30% margin.
• Treating renovation cost as renovation value. Spending $60,000 doesn't add $60,000 of value. Only the comps say what the market pays for.

How do agents use ARV with investor clients?

Agents use ARV to give flip clients a defensible maximum offer instead of an opinion. Run the renovated comps, state the ARV, apply the 70% rule, and show the client the ceiling. That's a five-minute conversation that sounds like experience.

It's also a listing tool. A license is a real advantage in a flipping career, because MLS access and CMA skills are exactly what accurate ARVs are made of.

Where ARV shows up on the real estate exam

ARV connects to the exam's appraisal and valuation questions, especially the sales comparison approach, the method behind every comp-based value. Know how comps are selected and adjusted and you've covered both the exam question and the real-world skill. For the other side of the valuation coin, see the cost approach.

The takeaway

ARV is the finished-product value, built from renovated comps, and it caps everything a flip can pay. Get the ARV right and the 70% rule turns it into a maximum offer in one line of math. Get it wrong and no amount of renovation skill saves the deal. Comps first, always.

Talk flips like you've done one

Investor clients don't want cheerleading, they want the ARV, the max offer, and the reasoning. The Certified Investor Agent Specialist (CIAS) course teaches the full deal math, from ARV and the 70% rule to cash flow and cap rate, with calculators and scripts you can use on your next investor call. Try the CIAS course free for 3 days. No payment, full first chapter, instant access.