Understanding ARV — After Repair Value — and Why It Makes or Breaks Your Deal
Let me paint you a picture. Two investors are standing in front of the same distressed property. Same neighborhood. Same cracked drywall. Same outdated kitchen from 1994. One investor walks away saying, "I'll offer $190,000." The other walks away saying, "I'll offer $240,000." Same house. A $50,000 gap in their offers.
What's the difference? One of them knows their ARV cold. The other is guessing.
After Repair Value — ARV — is the single most important number in real estate investing. Get it right, and every other decision you make flows from a place of clarity and confidence. Get it wrong by even a small margin, and you can lose tens of thousands of dollars before you ever sell the home. I've seen it happen to smart, hardworking investors who just didn't have a solid grip on this one concept.
So let's fix that. This is everything you need to know about ARV — what it is, how to calculate it properly, what mistakes will quietly destroy your numbers, and how to use it as the foundation of every deal you analyze.
"ARV isn't just a number on a spreadsheet. It's the ceiling of your entire deal. Everything — your offer, your renovation budget, your profit — lives underneath it."
So, What Exactly Is ARV?
ARV stands for After Repair Value. In plain language, it's what your property will be worth on the open market once all repairs and renovations are complete — not what it's worth today in its current beat-up condition, and not what you hope it'll be worth. What it will actually sell for, based on real evidence from the market right now.
Think of it this way. When you buy a distressed property, you're essentially buying a future version of it at today's broken price. ARV is the value of that future version. It's your end goal. And like any goal, the clearer and more accurate it is, the better your decisions will be along the way.
ARV is used for two big things in real estate investing. First, it helps you figure out the maximum price you should ever pay for a property. Second, it's what lenders use to determine how much they'll loan you on a fix-and-flip project. Both of those things directly affect whether you make money or lose it.
The ARV Formula
The basic formula sounds almost too simple. But don't let that fool you — the simplicity of the formula is exactly what makes getting the inputs right so critical.
ARV = Current Property Value + Value Added by Renovations
More accurately: ARV = what comparable renovated homes are actually selling for in this neighborhood right now.
Notice that second line. That's the real definition. The formula above gives you a starting point, but the most accurate way to determine ARV is to let the market tell you the answer. You do that through comparable sales — also called comps. We'll get into exactly how to pull those in a moment.
There's also a simpler method using price per square foot: you take the average price per square foot of recently sold, renovated homes in the area, and multiply that by your subject property's square footage. Both approaches have their place. Most experienced investors use both as a cross-check.
How ARV Connects to Your Offer Price
Once you have your ARV, it unlocks your Maximum Allowable Offer — the highest price you can pay for a property and still walk away with a real profit. The tool investors use for this is the 70% Rule.
Max Offer = (ARV × 70%) − Estimated Repair Costs
The 30% buffer covers closing costs, holding costs, agent commissions, and your profit margin.
This is why ARV is so powerful — and so dangerous to get wrong. Your MAO is literally built on top of your ARV. If your ARV is inflated by $20,000, your Max Offer is inflated by $14,000. That's $14,000 you're overpaying before you've even touched the property. Stack that on top of any cost overruns during renovation, and a deal that looked profitable on paper quickly becomes a deal you're trying to survive.
"If your ARV is even 5% too high, it can mean a $15,000–$25,000 loss on a median-priced home. That's not a small miscalculation — that's a deal-ending one."
A Real-World Example
Let's walk through what this actually looks like with real numbers so it clicks.
Now watch what happens when the ARV is inflated by just 10%:
Same property. Same repairs. A 10% ARV error just cost you over $24,000. That's not a typo. This is why ARV accuracy isn't optional — it's everything.
How to Find Comps the Right Way
Finding comps is the art behind the ARV formula. It's also where most beginners go wrong. Here's the process I use on every deal, broken down step by step.
Only Use Closed Sales — Never Active Listings
This is the most common ARV mistake and it will inflate your number every single time. Active listings show what sellers want to get. Closed sales show what buyers actually paid. Those are two very different things — especially in a shifting market. Pull your comps from sold properties only, and stick to sales within the last 90 to 180 days. Anything older than six months in most markets should be used with caution.
Stay Within a Half-Mile Radius
Real estate values can change dramatically within a few blocks. The neighborhood on one side of a major road might sell 20% higher than the neighborhood on the other side. Your comps should come from as close to your subject property as possible — ideally within a half-mile, and never more than a mile in most suburban markets. In dense urban areas like DC, you may need to tighten that even further to the same block or building type.
Match the Property as Closely as Possible
Your comps need to be genuinely similar to your subject property — not just "close enough." Look for homes that match on: square footage (within 20%), bedroom and bathroom count, property type (don't compare a single-family to a townhouse), lot size if relevant, and condition at time of sale. A fully renovated 3-bed, 2-bath, 1,400 sq ft home is your comp for a fully renovated 3-bed, 2-bath, 1,400 sq ft home — not a 4-bed colonial with a finished basement two miles away.
Only Compare to Renovated Properties
This one trips up a lot of new investors. Your ARV represents what the home will sell for after it's renovated. So your comps should reflect homes that were also renovated — updated kitchens, modern bathrooms, fresh finishes. If you pull comps from properties that sold in original condition, you'll underestimate your ARV. If you pull comps from luxury renovations in a mid-range neighborhood, you'll overestimate it. The condition of your comps matters as much as any other variable.
Use 3 to 5 Comps — Then Average Them
One comp is not a number — it's a coincidence. Three to five comps give you a pattern you can actually trust. Once you've gathered them, calculate the average sold price and also look at the price per square foot. Then multiply that average price per square foot by your subject property's livable square footage. You now have an ARV supported by real market data, not guesswork. If your comps show a wide range, try to understand why — it might point to a quality difference worth noting.
Tools like Zillow, Redfin, and the MLS are your starting points. But if you want to go deeper, PropStream and HouseCanary give you access to robust comp data with filters that make this process faster and more precise. As you close more deals, you'll also start to build neighborhood-level intuition that no tool can replicate.
The 4 ARV Mistakes That Silently Kill Deals
Even investors who understand ARV conceptually still make these errors in practice. Watch for all four.
- Using active listings instead of closed sales. Active listings reflect seller hope, not buyer reality. Always use closed sales — what someone actually paid, with a check that cleared.
- Pulling comps that are too far away. Two blocks in the wrong direction can mean a 15% swing in value. Keep your radius tight. Neighborhood character, school zones, and proximity to amenities all shift prices fast.
- Comparing different property types. A townhouse comp does not equal a single-family detached home. A renovated property does not equal one in original condition. Mismatched comps produce a fictional ARV.
- Using comps that are too old. Market conditions can shift in a quarter. A comp from 18 months ago in a cooling market may be inflated by 10% or more. Stick to the last 90–180 days, and if the market has moved recently, weight your most recent comps more heavily.
Investors who inflate their ARV almost always do it because they've already fallen in love with a property. They want the deal to work, so they pick the highest comp, ignore the differences, and tell themselves it'll sell for top dollar. This is called motivated reasoning — and it is one of the most expensive cognitive biases in real estate. Run your comps before you fall in love, not after.
ARV Isn't Just for Flipping
While ARV is most commonly discussed in the context of fix-and-flip investing, it shows up everywhere in real estate. Wholesalers use it to price their assignment fees accurately and attract serious cash buyers. BRRRR investors use it to determine their refinance value after renovation. Hard money lenders base their loan amounts on it — typically lending 65–75% of ARV. Even traditional mortgage lenders look at a version of it when you're buying a fixer-upper with a rehab loan.
The bottom line: wherever there's a distressed property and a renovation plan, ARV is the number that anchors the entire deal. Master it in one context and you've mastered it in all of them.
"Your ARV is only real if someone will actually pay it when you're done. The market doesn't care what you spent. It only cares what comparable homes are selling for right now."
One Quick ARV Confidence Check
Before you finalize any ARV, ask yourself these four questions. If you can answer yes to all of them, you can move forward with confidence. If even one answer is shaky, go back and tighten your comps.
- Are all my comps closed sales from the last 90–180 days?
- Are they within a half-mile of my subject property?
- Do they match my subject property in size, type, and renovated condition?
- Do I have at least three comps supporting the number?
If yes to all four — you have a defensible ARV. Build your deal on top of it with confidence.
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