Illustrative Self-Storage Property
A hypothetical climate-controlled storage facility used to keep hallway lighting with the 39-year building and isolate gates, fencing, and office furniture. Educational information, not tax advice.
Educational information, not tax advice.
Updated 2026-10-14
Assumptions
- Educational information, not tax advice.
- Assume climate-controlled self-storage rented by the unit, not residential rental property and not a warehouse used in manufacturing.
- There is no IRS self-storage matrix. Interior unit partitions are treated conservatively pending facts.
- Any dollar figures below are invented for arithmetic only. They are not a typical mix and not a client result.
Key takeaways
- Self-storage buildings are not residential rental property. The structures are generally 39-year nonresidential real property.
- Unit partitions need a permanence analysis; they are not automatically 5-year.
- Site fencing and gates are the more typical short-life or 15-year items. Hallway lighting that operates the building stays with the building.
- Canopies over loading lanes are analyzed on their own facts, not automatically as Rev. Rul. 2003-54 pump canopies.
A three-story climate-controlled storage building is placed in service. The study resists treating every corridor light and unit partition as 5-year property. Those look like the building’s operation. Suppose, for arithmetic only, capitalized cost of $4.5 million with $900,000 assigned to land. Invented depreciable basis is $3.6 million. No partition percentage is claimed.
The leasing-office furniture, gate operator, and perimeter fence are listed separately. Canopies over loading lanes are analyzed on their own facts, not automatically as Rev. Rul. 2003-54 pump canopies.
Order of operations: land, 39-year building class, 15-year site work, personal-property candidates that survive a permanence and function test, inspection, reconciliation, CPA filing. Climate control does not convert hallway HVAC into process equipment without a sole-justification showing that the units exist only for stored goods rather than the building.
Guidance gap
There is no IRS self-storage matrix. The illustration is conservative on interior partitions for that reason. Self-storage is a rental business, but the buildings are not residential rental property under §168(e)(2). The recovery period for the structures is generally 39 years.
Metro National’s movable-partition analysis is sometimes cited by analogy. Storage unit walls that are part of the original building plan, run to the deck, and carry the climate-control envelope often look more like structural partitions under Treas. Reg. §1.48-1(e)(2). Bolt-together cage walls that have been moved and reused can look more like personal property on their facts. This page does not decide that question for every facility.
What stays with the building
Hallway lighting, exit signs, fire sprinklers that protect the building, elevators, restrooms, and the climate-control system that conditions the corridors and units as occupied building space generally stay 39-year property. Do not treat hallway lighting as 5-year property just because units are rented. The lights operate the building.
Unit doors, hallway carpet that is the floor finish, and gypsum unit demising that was built as the original plan are structural-component candidates. Present any contrary position with Whiteco factors and inspection notes, not with a marketing label.
Site, office, and canopies
Drive lanes, surface parking, perimeter fence, and automated gates are usual 15-year land-improvement or, for some gate operators and office furniture, personal-property candidates. A leasing office, packing-supply retail, and truck-rental canopy are separate components. Truck canopies may resemble the canopy analysis in Rev. Rul. 2003-54 only when the facts match gasoline pump canopies and footings. Attachment to the building and function have to be described.
If this facility were purchased rather than built, read any written allocation. Peco Foods is a risk when a §1060 writing exists; it is not assumed to apply to every storage closing.
Records and inspection
For new construction, pay applications should separate site work, building, and millwork. For a used facility, the cost-estimate approach plus inspection applies. Photograph unit wall construction, whether partitions stop at the grid or go to the deck, gate hardware, and canopy attachment. Interview the manager about how often unit walls are reconfigured. Climate-control units that condition corridors as occupied building space stay with the building unless a sole-justification showing is made that they exist only for stored goods; this illustration does not make that showing. AmeriSouth’s caution about over-segmentation of rental buildings is useful even though that case was apartments. There is still no IRS self-storage matrix, so conservative treatment of gypsum unit demising is a documentation choice, not a claimed typical mix.
CostSeg SI describes inspection-support tools as proposed Super Intelligence workflow, not as a claim that an agent classifies partitions without a person. The ATG recommends a field inspection for all quality studies and lists interviews with appropriate parties as a quality element.
Reconciliation and filing
Add every class back to the invented $3.6 million, or to actual depreciable basis. Land stays out. Do not use a rule-of-thumb “self-storage is X percent personal property.” The audit guide ranks that method last. A uniform step-up that forces estimates to the purchase price is also rejected in that guide; explain gaps with quantities, location, and condition instead.
The CPA prepares Form 4562. Bonus depreciation on qualified gates, furniture, or other personal property follows acquisition dates in Notice 2026-11. This page does not compute tax. Educational information, not tax advice.
Sources
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- 4Metro National Corp. v. Commissioner, T.C. Memo. 1987-38(opens in a new tab)
IRS written determination that summarizes the decision.
- 5IRS Publication 5653 — Cost Segregation Audit Techniques Guide (rev. 2-2025)(opens in a new tab)
Written for IRS examiners. The guide states it is not an official pronouncement of law and cannot be cited as authority. It predates the July 2025 law.
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