Financial research concept

Self-Storage Same-Store Occupancy: Stabilized Space Utilization

Self-storage same-store occupancy measures occupied rentable square footage within a stabilized property cohort, helping investors separate underlying demand from acquisitions and lease-up.

By Lee BaileyPublished Sep 19, 2026
Research context

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Research date
Sep 19, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context
6 connected conceptsPart of the reviewed Self-Storage Operating Model; issuer definitions remain distinct where disclosed.
Company examples
2 reviewed companiesRelationships reflect supported examples, not a normalized cross-company KPI ranking.
  1. Same-store occupancy removes much of the portfolio-growth noise
  2. Period-end and average occupancy are different
  3. Occupancy is driven by move-ins, move-outs, and pricing
  4. Same-store definitions are issuer-specific
  5. Primary-source examples
  6. Part of the Self-Storage Operating Model
  7. See It in Company Research
  8. Continue Research

Self-storage same-store occupancy measures the share of rentable square footage occupied within an operator's defined same-store property cohort.

The metric is a stabilized-demand measure rather than a total-portfolio occupancy measure.

Same-store occupancy removes much of the portfolio-growth noise

Public Storage defines its same-store pool around facilities it has owned and operated at stabilized occupancy, revenue, and cost levels for the relevant comparison period.

Extra Space Storage similarly uses a stabilized same-store pool so investors can evaluate operating performance without the effects of acquisitions, new developments, and lease-up.

That makes same-store occupancy useful for answering a narrower question:

How full is the mature portfolio?

Period-end and average occupancy are different

Public Storage reports both period-end square-foot occupancy and weighted-average square-foot occupancy in different operating disclosures.

Extra Space also reports ending same-store occupancy.

Those measures are not interchangeable.

Period-end occupancy is a snapshot.

Average occupancy captures utilization across the period and can better align with period revenue, but the issuer's exact weighting method still matters.

Occupancy is driven by move-ins, move-outs, and pricing

A simplified operating bridge is:

beginning occupied space + move-ins - move-outs = ending occupied space

Pricing decisions affect both sides.

Lower move-in rents or promotions can support acquisition volume.

Higher existing-tenant rents can increase revenue but may affect churn.

That is why occupancy belongs beside Self-Storage Move-In Contract Rent, Self-Storage Move-Out Contract Rent, and Self-Storage Same-Store Churn.

Same-store definitions are issuer-specific

The required ownership period, stabilization threshold, inclusion of redevelopment properties, and treatment of acquisitions can differ across REITs.

Public Storage explicitly cautions that same-store measures may not be comparable among REITs because peers may compute them differently.

Primary-source examples

Self-storage same-store occupancy is most useful as a stabilized space-utilization measure, not as total portfolio occupancy or a standalone profitability metric.

Part of the Self-Storage Operating Model

Connect customer move-in pricing, move-out pricing, churn, stabilized occupancy, same-store NOI growth, and tenant reinsurance to understand self-storage property and ancillary economics.

How the model fits together
  • Customer acquisition, retention, and occupancy: Move-in contract rent shows the price offered to new customers, while move-out contract rent shows the rate paid by departing customers after in-place increases. Same-store churn captures customer turnover, and same-store occupancy shows how those flows translate into stabilized space utilization.
  • Property and ancillary economics: Same-store NOI growth captures stabilized property-level revenue and expense performance, while tenant reinsurance adds a separate ancillary revenue and profit stream tied to insured tenants. Neither measure should be treated as a substitute for occupancy or customer pricing.

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

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