What gets reclassified
A retail strip mall is predominantly 39-year nonresidential real property, but a cost segregation study typically identifies significant shorter-life assets. 15-year property (site improvements): paving, parking lot striping, landscaping, outdoor lighting, monument signs, site utilities, fencing.
5-year property: specialty electrical for tenant signage, certain floor coverings, decorative elements, and any personal property installed as part of tenant buildouts that the landlord owns. Each component's function determines its life under MACRS — a cost seg engineer inspects, measures, and allocates costs component by component.
Owner-furnished buildouts vs. shell space
The reclassification potential depends heavily on how much the landlord installed. A triple-net strip mall where tenants build out their own spaces gives the landlord fewer short-life assets to reclassify. A center where the landlord furnished electrical, HVAC, lighting, and floors for each tenant suite has much more to accelerate.
Qualified Improvement Property (QIP) — interior nonresidential improvements made after the building was placed in service — is 15-year property eligible for bonus depreciation. If you renovated suites between tenants, those costs likely qualify as QIP.
Typical results and payback
On a $2M retail strip mall acquired new, a cost seg study might identify 20–35% of the cost as 5- and 15-year property ($400K–$700K). With 40% bonus depreciation in 2025, that moves $160K–$280K of deductions into year one versus the straight-line schedule. At a combined 37% federal + state tax rate, the tax benefit can be $60K–$100K in year one alone.
Study fees for a strip mall typically run $5,000–$15,000, making the ROI clear for any property above roughly $500,000.
Frequently asked questions
Is parking lot paving included in a cost seg study?
Yes. Paving is 15-year land improvement property and is one of the most consistently identified categories in retail properties.
What if my tenants are triple-net (NNN)?
In a NNN lease the tenant pays taxes, insurance, and maintenance, but the landlord still owns the building structure and site improvements. Those still qualify for reclassification.
Can I do cost seg on an existing strip mall I've owned for years?
Yes. A look-back study allows you to catch up all prior missed depreciation in one year via a Form 3115 accounting method change — no amended returns required.
Sources
Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.