What killing a small conversion deal in due diligence actually costs, using a real sequence of numbers
A small former bank branch conversion is a useful case for showing what walking away in due diligence actually costs, even when walking is the right call. Take a single story former bank branch, 4,400 sf, drive-through canopy, first-ring suburb, asking $295k. The plan: three units, keeping the vault as a storage amenity, an idea that tends to get universal enthusiasm, which is itself worth treating as a caution flag rather than validation. Say the deal dies in week ten because the sewer lateral is 4 inch and the city requires 6 inch for three dwelling units, with the connection running under the drive-through pavement and out to a main across a county road. A utility contractor's number for that work comes in at $61k to $80k with a bore, plus an unpredictable county road permit timeline. Walking away is the correct call there. Here is what walking still costs. Earnest money of $5,000, with only $2,500 recovered because the contingency lapsed by three days on the extension and the seller wasn't inclined to be generous. Architect for a feasibility set and code review, $7,400. Utility contractor site visit and camera scope, $2,200. Phase one environmental, $2,900, ordered because of an old fuel tank rumor that turned out to be false. Survey, $1,600. Roughly $1,800 more in fees, mileage and an early title search. Total: $18,400 to learn no, on a deal never owned. That spend isn't wasted, it's cheap insurance against the $61k sewer bill that would otherwise arrive after closing. The real lesson is sequencing: order the utility scope in week one instead of week six. At $2,200 it's the cheapest test available and it's the one that actually kills or clears a deal like this. Architects get hired first because that feels like the real work, but an architectural set built on an assumed working plumbing connection is built on sand. And contingency dates deserve to be watched closely, since three days cost $2,500 in this example.