They took a number off for repairs. Here is what that buys.
Enter the repair deduction on your offer and tick whatever the buyer or the inspector said needs doing. You get it placed against 16 renovations we priced and paid for, what those trades have cost on real jobs, and the questions that turn a lump sum into a line-item list. No address, no email to see the result.
What the offer says
Two numbers off the offer, and whatever the buyer or the inspector told you was wrong with the house. Nothing is sent anywhere while you type.
What they said needs doing
Tick whatever was named. If nobody itemised it, that is worth knowing too — leave these blank and the questions below still work.
Beta. The cost history behind it is real and ours; the questions it produces are the ones our own team asks. Check it against your sheet and tell us if anything reads wrong.
Sixteen renovations, priced line by line.
Most renovation calculators are built on national averages. This one is built on 1,413 line items from 16 jobs Zoom Casa scoped, bid out and paid for across 13 states, totalling $510,224 of priced work. Every line reconciles against the proposal it came from. Homes are identified by state and size only.
The single most useful thing in that history is how much the numbers move. Every proposal our side writes is versioned, and across the thirteen jobs that ran past a first draft, ten moved more than 20 percent before the work was agreed. They moved in both directions, so there is no correction to apply and no reason to treat a first figure as final. Yours included.
The second is what scope does to price. Cost per square foot across those jobs ran from $2.85 to $74.25, and the biggest house in the set carried the smallest bill. Whatever a calculator tells you about dollars per foot, the list of what is wrong with the house is the thing that decides it. The full sixteen are laid out here.
Before you type anything in.
What does this tool actually tell me?
Three things. Where your repair deduction sits among sixteen renovations we priced and paid for, what the trades named on your offer have cost us on real jobs, and a list of precise questions to take back to whoever wrote the figure. All of it appears on screen as you type, and none of it requires your email.
Where do the numbers come from?
From Zoom Casa's own renovation proposals: 1,413 line items across 16 completed jobs in 13 states, totalling $510,224 of priced work, extracted on August 18, 2026. Every line reconciles against the proposal it came from. These are jobs our side scoped, bid out and paid for, which is a different thing from a national average.
Will it tell me what my repairs will cost?
It will not, and that limit is the honest one. Across our own sixteen jobs, square footage explains about 2 percent of what a renovation costs — the correlation is very slightly negative, and the largest home in the set carried the smallest bill. What drives cost is scope, the specific list of what is wrong, and that comes from somebody walking the house. The per-square-foot figure here places your number among real jobs so you can see the spread. It is not a price for yours.
Do I have to enter my address?
There is no address box on this page and there is not going to be one. The tool works from the figure on your offer and whatever the buyer or inspector told you was wrong with the house.
Is a big repair deduction a bad sign?
Not on its own. Houses genuinely need work, and a buyer who prices it properly is doing their job. What matters is whether the figure can be broken into line items with quantities behind them. A number that can be itemised usually is, and quickly. That is why the questions this tool produces are worth more than the comparison at the top.
Why do two contractors quote such different prices for the same work?
Usually because they are promising different things. On one of our jobs two roofers bid the same scope 42 percent apart. The cheaper bid had written the unknowns out as exclusions; the one we accepted had priced them in. The exclusions on a bid are a good preview of the change orders that follow it, so they repay more attention than the total on the front page.
Zoom Casa buys homes. Why should I trust these numbers?
Because you can check the shape of them against your own bids, and because the figures here are our costs rather than a claim about anyone else. This page states no number about any other company. What it does state is what we have paid our own contractors, which is the part most useful to you and the part least flattering to guard.
It says beta. What does that mean here?
The cost history behind it is settled and traceable. The tool built on top is new. Check it against your own sheet, and if a question it produces reads wrong for your situation, tell us and we will sharpen it.
If you are still weighing the offer.
Read the whole offer sheet, not just the repair line · What sixteen renovations actually cost · Why an Opendoor offer changes between preliminary and final · everything else in Resources
This tool compares a figure you enter against Zoom Casa’s own historical renovation costs. It is not an appraisal, a repair estimate for your home, legal advice, or a recommendation about any offer. Net-sheet previews are illustrative; final offer terms are issued in writing on a term sheet. Program availability varies by state. Past results don't guarantee future outcomes — not all properties qualify.