Enter your subject property's square footage and a few recently sold comparable homes. The calculator finds each comp's price per square foot, takes the median, and applies it to your home to estimate its after-repair value (ARV) — plus a low–high range — the same comps-based method appraisers and flippers use.
Pre-filled with example comps — edit any field. This is a screening-grade estimate, not a certified appraisal or investment advice. Verify with your own comps and adjust for condition, lot, and location.
Pulling, filtering, and averaging comps by hand is the slow part. DevelopmentIntelligence.ai computes ARV automatically from real recorded county sales — its built-in AVM — on every deal, and returns a value range with a confidence read so you know how much to trust it. No spreadsheet, no MLS access required.
After-repair value is what a property will be worth after it's fully renovated — the price it should sell for in its improved condition. It's the anchor number for nearly every flip or value-add deal: your maximum offer, your rehab budget, and your projected profit all hang off the ARV. Get it wrong and every downstream number is wrong, which is why estimating it carefully — from real sold comps, not asking prices — matters so much.
The standard way to calculate ARV is the comparable sales (or "comps") method, the same approach a licensed appraiser uses. The shortcut version this calculator runs is:
This tool also shows a low–high range built from the cheapest and most expensive comp $/sqft, so you can see how wide the comps disagree. A tight range means confident comps; a wide range means you should pull better ones or adjust manually.
The estimate is only as good as the comps behind it. Strong comps are:
Price per square foot is a fast screen, not the whole story. Two homes of identical size can be worth very different amounts because of lot size, condition, layout, finishes, garage, view, and exact location — and a raw $/sqft median doesn't adjust for any of that. A real appraisal makes line-item adjustments comp by comp. Treat this calculator's output as a screening-grade estimate to decide whether a deal is worth a closer look, then refine it with adjusted comps, a local agent's broker price opinion, or an appraisal before you commit capital. It is not investment advice.
Doing this by hand for one property is fine. Doing it for every parcel in a market is not. DevelopmentIntelligence.ai runs the comps-based method automatically, drawing on real recorded county sales rather than asking prices, and returns an ARV with a value range on every deal it scores. That's the difference between checking one property and surfacing the mispriced ones across a whole market. Browse scored Phoenix value-add deals →