June 11, 2025
A property from a foreclosure can shine financially, as long as there are no "skeletons in the closet." Contaminated soil, asbestos in the roof, or invisible moisture can completely devastate any return on investment. Because the debtor's liability is removed, you must manage the risk. Fortunately, Switzerland has clear databases, smart measuring techniques, and experienced experts that enable a reliable risk assessment, even with limited viewing appointments. The following guide shows you step by step how to track down contamination, evaluate defects, and protect yourself contractually, technically, and financially.
Indicator | Measure | Cost (Avg) |
---|---|---|
Former gas station / metalworking shop | Full report + core samples | CHF 6,000-10,000 |
No registry entry, but built before 1960 | Screening for PAHs / heavy metals | CHF 2,500 |
Residential zone, built after 1990 | Only visual & odor check | CHF 0* |
*Can be done during the viewing itself.
• Moisture meter (< CHF 80)
• Infrared thermometer
• Endoscope camera
• Mini-checklist (roof, basement, technology)
Construction year indicators:
Prevention: Screening Package (CHF 1,800-2,500) to be commissioned. Disposal costs: Asbestos ≈ CHF 200-300/m², PCB-containing joints CHF 60/linear meter.
Remediation buffer = Technology + Building envelope + Unknown 10 %
= (40 % HP) + (25 % HP) + (10 % HP)
Unknown contamination and hidden defects can be managed with the right mix of databases, quick tests, expert insights, and financial buffers. If you do your homework, the foreclosure won't turn into a gamble, but rather a calculable opportunity with sustainable returns.