Cash buyers calculate offers according to the property and their intended use for it. A renovation buyer may start with the expected resale price, then account for repairs, purchase and resale expenses, holding costs, risk, and intended profit. A rental buyer may focus more on income and operating expenses. There is no single percentage that determines every cash offer.
The short version
- Ask whether the buyer is estimating today's as-is value or a value after improvements.
- Examine the comparable sales and the repair scope behind the number.
- Understand which costs belong to the buyer's calculation and which would reduce your proceeds.
- Compare actual offers and realistic alternatives rather than treating one formula as your home's value.
What value is the buyer starting with?
Three different numbers often get mixed together: an online estimate, a likely sale price in the house's current condition, and a likely sale price after renovation. They answer different questions.
An online estimate can be a starting point for research, but it may not reflect an unusual layout, an unfinished project, or the condition inside. A renovated house nearby can help establish a potential finished value without proving what your house should sell for today.
Ask which properties the buyer used as comparisons and why. Look at location, size, layout, condition, sale date, and meaningful differences. A nearby sale can still be a poor comparison if it is substantially larger or renovated to a different standard.
How do repairs affect the offer?
Ask for the main items in the repair estimate. A kitchen update, roof replacement, foundation evaluation, and general allowance for unknown problems are different kinds of assumptions.
The buyer's planned renovation may go beyond work needed to use the house safely or sell it in its current condition. Ask them to separate necessary repairs, intended upgrades, and contingency allowances. That helps you understand the estimate without assuming you must do the same work yourself.
A buyer may also account for permitting, contractor scheduling, financing, and the uncertainty of an unfinished project. Two buyers can assess these costs differently and arrive at different offers for the same property.
An example of a renovation buyer's math
The following is an illustration, not a valuation, quote, or description of a completed purchase. The numbers exist only to show how the calculation works.
| Assumption | Amount |
|---|---|
| Expected resale price after renovation | $300,000 |
| Planned renovation | −$45,000 |
| Buyer's purchase, holding, and resale expenses | −$30,000 |
| Buyer's intended profit and risk allowance | −$35,000 |
| Resulting purchase-price target | $190,000 |
If the buyer overestimates renovation costs by $15,000, that matters. If the finished home could realistically sell for less than $300,000, that matters too. The usefulness of the calculation depends on its assumptions.
The $190,000 is a proposed purchase price. Your own mortgage payoff and any seller-paid costs still need to be considered to estimate what you receive. Don't subtract the buyer's $45,000 renovation budget again from your proceeds unless the agreement separately imposes an additional adjustment.
Why would another buyer offer more or less?
A buyer who already has contractors available may have a different cost estimate from someone hiring for the first time. Another may plan modest rental-ready repairs rather than a full retail renovation. Some buyers have different financing costs or are comfortable taking on a particular kind of project.
Those possibilities don't mean a buyer with a construction background always pays more. Compare the price and the obligations together. A higher offer with broad cancellation rights or a difficult possession requirement may work differently from the lower offer you first dismissed.
Should you use the 70% rule to judge the offer?
You may encounter formulas that multiply a finished value by a fixed percentage and subtract repairs. These are investor screening shortcuts. They are not appraisals, nationwide pricing rules, or evidence that a seller must accept a particular discount.
For your decision, request the actual assumptions. Then compare the offer with a realistic as-is listing option and, if practical, a repair-and-list option. Our selling-options comparison shows how to keep those comparisons consistent.
What questions should you ask about the number?
- Which completed sales support the value you're using?
- Is that value for the house today or after your planned improvements?
- What major repairs or upgrades are included?
- Which assumptions could change after another inspection?
- What costs would I pay separately under the agreement?
- What conditions must be satisfied for this offer to close?
Keep the answers with the written offer. A clear explanation can make the proposal easier to evaluate; it doesn't make it the only option available to you. Compare the net proceeds and the work each route would require before choosing.