Bought a 1.5 MW colo as a passive hold and inherited an operating business
Sold this in the spring at $3.35m against a $4.2m basis, 26 months in, and the loss on paper understates it because of what it did to my team's time.
The asset: single story purpose-built colocation building in a secondary metro, about 22,000 square feet, roughly 1.5 MW of installed UPS capacity, 40-odd customers in cabinets and half cages. Seller's broker marketed it at a 9 cap on trailing NOI of about $378k. I liked the story. Power is the constraint everywhere, I'd be buying existing energized capacity at replacement cost well under what a new build would run, and the tenant base was diversified enough that no single customer was more than 9% of revenue.
Where it came apart, roughly in order.
Billable versus installed. Installed capacity was 1.5 MW. Billable kW under contract was about 640 kW, and about 180 kW of that was on month to month terms inherited from the prior owner at rates set in 2016. So the fill rate story I bought was measured against a denominator that didn't produce revenue.
Churn. Retail colo churns. I knew the number in the abstract and had it in the model at 8% annually. Actual was closer to 19% in year one, because three customers were mid-migration to public cloud when I bought and the seller knew it. Replacing a 12 cabinet customer takes a sales function. I did not have a sales function. I had me and a service business that already occupied my week.
Capex. UPS battery strings were at nine years. Replacement quoted at $340k. Chiller had one compressor down and had been running on the other since before closing, which the mechanical report described as "operational." Another $210k. Neither was in my model at anything like that size.
The utility. This is the one that finished it. My whole thesis was that I could sell additional capacity into a power constrained market. The feeder serving the building had no headroom, and the upgrade study came back with a four year window and a cost allocation I wasn't going to fund. So the 860 kW of unsold capacity was theoretically sellable, and physically it was, except I could never grow past 1.5 MW, and 1.5 MW is too small for the wholesale buyers who were the only people paying real prices in that market.
Exited to a regional operator who wanted the customer list and the address. $3.35m. Add the $340k of batteries I did replace and about $95k of legal and broker cost and I'm down roughly $1.2m all in, plus 26 months.
What I'd do differently. I'd have underwritten billable kW under contract with remaining term, and treated everything above that as zero. I'd have had someone who runs colo for a living review the customer list for migration risk before I removed the diligence contingency, which would have cost me a few thousand dollars. And I'd have gotten the feeder capacity answer from the utility in writing before I did anything else, because that answer alone would have stopped the deal in week one.