What lenders want to see in a car wash feasibility study

Operators looking to build or buy a car wash often run into the same gatekeeper before construction begins: a lender that wants proof the project will pay for itself. In many cases, that proof takes the form of an independent feasibility study, and its value comes down to the quality of the data behind it.

That is the argument from industry consultant Robert Roman in reporting from Auto Laundry News. Roman writes that banks tend to require a study when the project is a start-up, involves an SBA loan program, is capital intensive, or represents a large real estate development. Regardless of the framework used, he says any credible study needs to explain demand, pricing, costs, cash flow timing, and downside risk.

Demand, pricing, and defensible costs

Roman describes demand analysis as a balance between supply and demand. Demand can be estimated from vehicle demographics and wash frequencies, while supply reflects the number of competitors and their benchmark volumes. The resulting saturation ratio signals whether a market is underserved, healthy, competitive, or oversaturated.

Sales projections should be tied to measurable inputs such as pass-by traffic, population, and vehicle density, with adjustments for weather and geography. Pricing must also be defensible, meaning it links the cost of providing a service to its price, with distinctions drawn between transactional and non-transactional customers.

Costs draw close scrutiny. Roman notes that lenders frequently challenge expense assumptions, so cost of goods and operating expenses should match industry benchmarks and be adjusted for the region. Development budgets need to be complete, including contingencies, operating capital, soft costs, training, promotion, professional fees, deposits, and permit fees. Just as important is the timing of when money is spent.

Cash flow and stress testing

Balance sheets carry less weight with lenders than cash flow, according to Roman. Because of that, sales turnover must be projected forward with a realistic ramp-up period. He cites roughly 24 months as a defensible ramp-up window for an express exterior wash.

Studies are also expected to include financial metrics with acceptable ranges, such as internal rate of return, cash-on-cash return, payback of four to six years, development yield, and exit value. Sensitivity analysis shows how the numbers react to changes in traffic, membership, prices, or costs. Lenders often stress revenue on the downside, testing whether the business can still meet its obligations at 67 percent of projected sales.

Roman adds that while lenders expect the study to come from an independent third party such as a consultant, much of the underlying work falls to the borrower. That includes architectural drawings, equipment and construction quotes, pro forma statements, and financial terms.

Why it matters for operators

A feasibility study is not a box-checking exercise for the bank. It is a discipline that forces operators to confront whether a site can actually support the debt they plan to take on. Operators who understand what lenders test for can prepare stronger numbers upfront and avoid surprises during underwriting.

The practical lesson is that credibility beats length. Benchmarked expenses, a realistic ramp-up curve, and a project that survives a stress test at two-thirds of projected revenue will carry more weight than an optimistic pro forma. Operators should also expect to supply real quotes and drawings themselves, since even an independent study depends on accurate proprietary data from the borrower.