Joe DownsCEO & Co-Founder, Belrose Storage Group. Founder, Storage Moguls.

The math that makes retention a no‑brainer

29 May 2026 · 1 min

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One vacant unit costs $2,400 a year in lost rent. Finding a replacement runs $150 to $300 plus staff time and vacancy gaps. Keeping a tenant with a phone call or one-month discount costs almost nothing. The math makes retention an obvious choice.

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Here's the retention math that makes this episode worth your time. At a 100-space facility with an average monthly rate of $200 a space, one empty space costs $200 per month or $2,400 a year. So acquiring a new tenant to fill that space costs somewhere between $150 to $300 in marketing, inquiry handling, and move-in processing, maybe more. And that's before you account for the soft costs, the time your manager spent on 3 calls before the tenant committed, the potential for a gap between the outgoing tenant and the incoming one. All right, so the retention investment, a phone call, a personal letter, a 1-month discount on a multi-year lease typically costs a fraction of that. The math is not subtle.