A cash offer is a subtraction, not a guess: after-repair value minus repairs, carrying and resale costs, and the buyer's margin. Here is each line, and how to tell an honest number from a bait-and-switch.
A cash home buyer prices an offer by starting from the after-repair value - what the home is worth fully renovated - then subtracting the cost of those renovations, the carrying and transaction costs of owning and reselling it, and the margin the business needs to keep operating. What remains is the offer. A legitimate buyer shows you every line.
The offer is a subtraction, not a percentage
The offer is not a flat percentage of your home's value. It is a subtraction that starts at the resale price and works backward through every cost between buying the house and selling it renovated. Four numbers drive it, and each one can be shown to you:
- After-repair value - what the home sells for once it is fixed up
- Renovation cost - what that work will take
- Carrying and transaction costs - the price of owning, holding, and reselling
- Margin - the profit and risk buffer that keeps the buyer solvent
Subtract the last three from the first and you have the offer. Each of the four can be checked against reality, which is what separates a real offer from a number pulled from the air. When a buyer walks you through all of them, the price stops being a mystery.
Where the after-repair value comes from
The after-repair value, or ARV, is what your home would sell for fully renovated, and it comes from recent sales of comparable homes nearby - same size, same style, same finish level. In many markets condition and price swing block to block, so the comps that matter are the closest ones, not a city-wide average. A rowhome on a repaired block can carry an ARV thousands of dollars apart from an identical one two streets over. The resale price sits at the top of the math, so every dollar the ARV is off ripples through the whole offer, and an honest buyer names the specific sales behind the figure.
How the renovation budget is estimated
The renovation estimate is what it costs to bring the home to that resale condition, and it is built from a walkthrough, not a guess. The buyer looks at the roof, the systems, the kitchen and baths, the foundation, and anything deferred, then attaches real costs to each item. A cosmetic refresh and a full gut land at very different numbers, which is why a walkthrough - in person or by video - comes before a firm offer rather than after.
The carrying and transaction costs people forget
Between buying your home and reselling it, the buyer pays to own and move it, and these costs are easy to overlook. They are real money out the door, and they belong in the math:
- Property taxes, insurance, and utilities during the hold
- Financing or the opportunity cost of the cash tied up
- Title, transfer taxes, and closing costs on both ends
- The agent commission paid to resell the finished home
None of these are charged to you, and the buyer absorbs them, but they lower what the buyer can pay upfront. That is the exchange behind a cash number: the buyer shoulders the holding, the repairs, and the resale risk in your place.
Why the margin exists
The margin is the buyer's profit and its buffer against being wrong. Renovations run over, markets soften, and a house that looked simple hides a cracked sewer line behind the wall. The margin is what lets the business survive the deals that go sideways and still be there to close the next one. A buyer with no margin cannot honor the offers it makes. A reasonable margin is not the same as a lowball - the difference is whether the other three numbers were honest, so ask what the margin is and expect a straight answer.
Why two honest buyers reach different numbers
Two reputable buyers can look at the same house and offer different amounts, and neither has to be cheating. One may budget a heavier renovation, plan a longer hold, or read the resale comps more conservatively. Each assumption moves the offer by real dollars. This is why a fair cash offer is a range, not a single correct figure. Line up competing offers against their assumptions, not just their headline totals, and the right one is easier to see.
The red flags of a dishonest number
A dishonest offer usually announces itself in one of two ways: it is uncannily high to win your signature, then gets cut after an inspection finds problems the buyer already expected, or the buyer will not show you how the number was built at all. A figure far above every other offer is not a gift; it is often the setup for a retrade at the table.
Before you sign with anyone, read how to vet a we-buy-houses company, which lays out the questions that separate a firm offer from a bait-and-switch.
When a cash offer is the wrong tool
A cash offer is priced for condition, speed, and certainty, so it is the wrong tool for a home that needs none of those. If your house is updated, easy to show, and sitting on real equity, the open market will usually reward it with more buyers competing, and more money, even after commission and a few weeks of waiting. A buyer worth trusting will tell you when not to sell to them.
If listing nets you more and you can wait, list. The cash offer versus agent math walks through exactly when each path wins, and you can model your own take-home with the net-sheet breakdown.
How Nobu Holdings shows the math
We build every offer with the same four lines, and we show them to you. A local operator walks the property, prices the condition against real comparable sales, and lays out the renovation, carrying, and resale costs behind the number, with no black box. There are no agent commissions and no fees, we cover the standard closing costs, and the offer carries no financing contingency, so the figure you accept is the figure you plan around.
We buy this way across our markets - the homes we have closed in Baltimore and Richmond were priced line by line, then closed on the seller's date at a local title company in as little as 14 days. You can see more of what we buy on our portfolio.
