Why a pad site is mostly site
Walk a quick-service restaurant, pharmacy, c-store, or bank pad and the building is the smallest thing on it. The structure occupies a modest footprint near the center; everything around it — the parking field, the drive-thru loop, the pylon sign at the road, the landscaped setbacks — is land improvement. Under the asset classes described in IRS Publication 946 and the IRS Cost Segregation Audit Techniques Guide (Publication 5653), most of that site work carries a 15-year recovery period rather than the 39-year period that applies to the building shell.
That geometry is what makes a net-lease pad distinctive. On a multi-tenant office or apartment building, the structure dominates the basis. On a single-tenant pad, the reclassifiable site improvements frequently rival or exceed the depreciable building. The engineering question is not whether site work qualifies — it is how much of the parcel it represents.
One point governs everything that follows: what reclassifies is the landlord's cost basis — the price paid to acquire the property, including allocable acquisition costs, less the non-depreciable land. It is not tenant operating expense, and it is not tenant-funded build-out the lease assigns to the occupant. An engineering-based study documents which side of the lease paid for each component, so that only basis the owner actually holds is reclassified. For 1031 buyers, that resolved basis is the carryover and any boot recognized at acquisition — the same number a study reads from.
The 15-year land improvements
These are the visible majority of the parcel, and on a typical pad they are owner-funded at acquisition. A study identifies and quantifies components that commonly include:
- Parking lot paving, curbs, wheel stops, and striping
- Sidewalks, aprons, and exterior hardscape
- Pylon and monument signage structures and footings
- Site and parking-lot lighting, poles, and bases
- Landscaping and irrigation within the parcel
- Drive-thru lanes, order canopies, and bypass paving where present
- Site utilities and drainage serving the improvements rather than the building
On many pads these 15-year components account for a substantial share of depreciable basis — frequently in the 20% to 35% range, and higher where a drive-thru and a large parking field dominate the site. The exact figure is an engineering estimate specific to the parcel, not a fixed percentage.
The 5- and 7-year personal property
Inside and around the building, a study separates components that function as personal property rather than structure. Branded interior finishes, decorative and specialty lighting, and the electrical that serves equipment loads commonly fall to a 5-year recovery period; dedicated process HVAC and owner-owned equipment that passes through the acquisition commonly fall to 7-year property.
The discipline here is the same NNN discipline: these are counted only where they sit in the landlord's basis. Where a triple-net lease assigns the trade-fixture build-out to the tenant, that build-out is the tenant's asset, not the owner's, and the study records which side of the lease funded each item before anything is reclassified.
What stays 39-year
Not everything moves, and a credible study is explicit about what does not. The building shell, structural frame, roof, and the core mechanical, plumbing, and electrical systems that serve the structure as a whole remain 39-year real property. The value of an engineering-based study is the clean separation: long-life building components are documented and held at 39 years so that the genuinely short-life site improvements and personal property can be carved out and supported with component-level detail.
Why these are ranges
Reclassification percentages vary widely by tenant format. A QSR with a double drive-thru, a large parking field, and a freestanding pylon models very differently from a bank branch with structured drive-up lanes, or a pharmacy on a deeper lot. The mix of site improvement to building, and the split of build-out between landlord and tenant, drives the result — which is why we publish ranges rather than a single promised figure. A study replaces the range with documented, parcel-specific component detail; see the example study (estimated) for how that detail is presented.
One distinction matters for any number you take from this page. The reclassification percentage is an engineering estimate of how basis is allocated across recovery periods. The first-year depreciation that follows is a separate modeled tax estimate — it depends on the §481(a) adjustment for a lookback study, the bonus rate in effect for the placed-in-service date, state conformity, the §469 passive-activity rules, and your entity structure. We model the engineering side; the tax outcome is estimated and depends on facts specific to your return. For how the bonus rate ties to acquisition timing, see bonus depreciation by PIS year, and for acquisition through exchange, 1031 exchanges and cost seg. More background sits on the net-lease cost segregation overview.
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