data center construction costs
â¢ Tier III data center (99.982% availabilityâabout 1.6 hours of downtime per year): $900 per square foot. â¢ Tier IV data center (99.995% availabilityâabout 0.4 hours of downtime per year): $1,100 per square foot. These costs, again, are estimates, but they can provide a starting point at least.hese estimated construction costs are as follows (from the Anixter white paper). â¢ Tier I data center (99.671% availabilityâabout 28.8 hours of downtime per year): $450 per square foot.