InvestorsMay 21, 20263 min read

After-Repair Value: How I Calculate It for Sellers & Investors

Short Answer

ARV should be based on actual comparable sales, not guesswork. I use recent closed sales in the same neighborhood, same condition level, and adjust for specific property differences. No fantasy values.

ARV mistakes are where most investment deals blow up financially

After-repair value is the hypothetical sale price of a property after all intended rehab work is complete. It's not a guess; it's not a hope; it's not what you think it "should" be worth.

ARV is the only question that matters in an investment deal. Get it wrong, and the entire deal math collapses.

How I calculate ARV: the framework

Step 1 — Identify truly comparable properties: Not the fantasy comps that justify your deal. The boring, boring comparable sales from the last 90 days in the exact same neighborhood and very similar condition.

If you're calculating ARV for a renovated three-bedroom rowhome in Kensington, find three rowhomes in Kensington that sold in the last 90 days in similar condition. Don't use listings; use closed sales. Don't use different neighborhoods; use the exact block or adjacent blocks.

Step 2 — Adjust for specific differences: If your comps sold for $240,000, $245,000, and $242,000, the average is $242,300. That's your baseline ARV.

Now adjust for anything different about your property:

Original hardwood floors vs refinished? Adjust down $2,000–$3,000.
Original electrical system vs updated? Adjust down $1,500–$2,000.
Rowhome with yard vs no yard? Adjust up $3,000–$5,000.

These adjustments should be modest. If you're adjusting more than $5,000–$10,000 on a $240,000 property, you're guessing.

Step 3 — Validate against future rents: If you're buying for a long-term hold or BRRRR play, your ARV should support rents. A three-bedroom rowhome valued at $250,000 should rent for at least $1,400–$1,500 in most Philadelphia neighborhoods.

If your ARV is $250,000 but comparable rents are $1,200, your ARV might be fantasyland. Buyers will demand lower prices if the rent-to-value ratio is weak.

The ARV traps I see investors fall into

Fantasy appreciation: Assuming neighborhood will appreciate 5–7% per year. That's hope, not ARV. Use current comps, not predicted comps.

Comparing across neighborhoods: A renovated rowhome in Point Breeze is worth more than the identical rowhome in Kensington. But that difference is built into the neighborhood comps already. Don't double-count it by using Point Breeze comps for a Kensington property.

Overvaluing custom finishes: You spend $8,000 on custom kitchen cabinetry. Tenant buyers don't pay an extra $8,000 for custom cabinets. They pay for functional, clean kitchens. Don't add your finish costs back to ARV.

Forgetting structural limits: A rowhome with a structural flaw, foundation issue, or system problem has an ARV ceiling. No amount of cosmetic renovation will overcome it. A buyer will pay what the market supports, and the market adjusts for hidden problems.

Using ARV defensively: protect your investment

When I use the 70% rule for deal screening, I'm using conservative ARV. I'd rather calculate low and be surprised by a slightly higher exit, than calculate high and blow up a deal.

Use ARV conservatively. Assume you'll miss your finish date by 30 days (carrying costs). Assume the property will sit for 45 days before sale (holding costs). Let those assumptions create a margin for error.