Financial research concept

Self-Storage Same-Store NOI Margin: Property-Level Profitability

Self-storage same-store NOI margin measures property NOI as a share of same-store revenue, helping investors assess operating efficiency within the stabilized portfolio.

By Lee BaileyPublished Sep 20, 2026
Research context

See what supports this page, how current it is, and where comparable or historical context is available.

Research date
Sep 20, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context
12 connected conceptsPart of the reviewed Self-Storage Operating Model; issuer definitions remain distinct where disclosed.
Company examples
1 reviewed companyRelationships reflect supported examples, not a normalized cross-company KPI ranking.
  1. Margin shows how much property revenue remains after property expenses
  2. High margins do not eliminate corporate costs
  3. Same-store definitions matter
  4. Primary-source examples
  5. Part of the Self-Storage Operating Model
  6. See It in Company Research
  7. Continue Research

Self-storage same-store NOI margin measures same-store net operating income as a share of same-store property revenue under the issuer's definition.

A simplified formula is:

same-store NOI margin = same-store NOI ÷ same-store revenue

It is a property-level margin measure, not a company-wide operating margin.

Margin shows how much property revenue remains after property expenses

Public Storage reported a 78.4% same-store NOI margin for 2025 and 77.1% for the first quarter of 2026.

Changes in rent, occupancy, payroll, property taxes, utilities, marketing, and repairs can all affect the margin.

That makes the measure a useful companion to Self-Storage Same-Store NOI Growth, which measures the change in NOI rather than the level of profitability.

High margins do not eliminate corporate costs

Property NOI generally excludes interest expense, depreciation, corporate overhead, acquisition costs, and other items below the property level.

A high same-store NOI margin therefore should not be treated as net profit margin.

Same-store definitions matter

A portfolio can change its same-store population as newly acquired or developed facilities season into the stabilized pool.

Compare both the margin definition and the underlying property cohort when evaluating trends.

Primary-source examples

Self-storage same-store NOI margin is most useful as a stabilized property-efficiency measure. Pair it with same-store revenue growth, expense growth, occupancy, and NOI growth.

Part of the Self-Storage Operating Model

Connect move-in and move-out pricing, churn, occupancy, same-store NOI growth and margin, rent per occupied square foot, tenant reinsurance, acquisitions, development pipeline, and third-party management scale to understand self-storage economics and portfolio growth.

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.
  • Portfolio scale, margin, and external growth: Same-store rent per occupied square foot and same-store NOI margin add current monetization and property-margin context. Acquired net rentable square feet and development-and-expansion pipeline square feet show owned portfolio growth, while third-party managed store count and rentable square feet show fee-based platform reach beyond the consolidated portfolio. These issuer-defined measures add portfolio-scale and growth context rather than forming a standardized cross-company formula.

See It in Company Research

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