Because of factors affecting the economy and financial and real estate markets, the old rules of thumb no longer apply.
I could regurgitate the new wisdom but you can read about it for yourself in the May 2012 issue of Professional Carwashing and Detailing magazine.
As for self-service, my research shows about 40 percent of such locations in the U.S. potentially have a higher and better use as a carwash site, specifically, flex-service or express exterior.
For example, consider a small chain of express washes that started in Memphis.
Initially, this firm built prototypical express washes each costing about $2.5 million using conventional funding. Each store has average sales of $600,000.
Today, this firm is growing and is funded with venture capital. Instead of building new at $2.5 million, the company renovates distressed self-service property as express at $1.5 to $1.7 million a pop and each of these stores is averaging $600,000.
In other words, a small-scale carwash has less cost and risks and can be more profitable than building big.