An auto service building is a shell wrapped around equipment that is bolted to it. Lifts, compressed air, exhaust extraction and paint booths all serve the work rather than the building, and they represent most of what makes the building useful.
The signature fact: the equipment reclassifies and the drainage does not. Lifts, compressors, air distribution, reels, exhaust extraction and booths are 5-year property. The floor drains, the oil-water separator piping cast into the slab, and the slab thickened to carry a lift are building. Service buildings concentrate spending on exactly those two groups, so the study lives or dies on keeping them apart.
What reclassifies in an auto service or collision center
5-year personal property (Section 1245)
- Vehicle lifts, alignment racks and their dedicated power and air
- Air compressors, dryers, receivers and the compressed-air distribution and reels
- Exhaust extraction systems, hose reels and dedicated ventilation serving bays
- Paint booths, prep stations, mixing-room equipment and dedicated make-up air
- Welders, frame machines, diagnostic equipment and their connections
- Parts-department shelving, service-writer millwork, customer-lounge furnishings
- Security, CCTV, POS, shop management IT and interior signage
15-year land improvements (Section 1250)
- Customer and vehicle-storage paving, striping, curbing and bollards
- Site and lot lighting, fencing, gates and screening
- Monument and pylon signage structures, landscaping, irrigation and drainage
39-year structural (Section 1250)
- Shell, roof, structure, overhead doors and storefront
- Slab, including thickened footings poured to carry lifts
- Floor drains, trench drains and below-slab waste piping to the separator
- Base HVAC, electrical service, general lighting, fire protection and restrooms
The oil-water separator
It is the item most often misclassified in this property type, and it is worth deciding deliberately. Below-slab piping serving the building’s drainage is generally structural. The separator vessel itself is evaluated on its own facts, including whether it is an in-ground structure or a removable unit. Photograph it during the walkthrough; a description in the report is worth more later than an assertion.
Illustrative, modeled
On a $2.8M collision center with roughly $2.3M of depreciable basis and a two-booth paint operation, an accelerated share near 30% moves about $690,000 into short-life pools, with booths, compressed air and lifts carrying most of it. This is a modeled figure rather than a completed client study.
Cost Seg Smart produces auto service studies on the auto dealership component library with engineer review of the shop equipment. Fees are published at costsegsmart.com.
FAQ
The lift was installed with the building. Which side is it on?
The lift is equipment. The structural work done to carry it, thicker slab and footings, is building. Both are usually in one construction line item, and separating them is exactly the kind of thing the engineering pass exists to do.
We lease the building and installed everything ourselves. Anything to study?
Yes. What you installed and own is your improvement, and in this property type the tenant’s equipment is often the larger asset. The study addresses your assets, and the lease establishes the boundary.
Does a quick-lube building work the same way?
The same principles, different weighting. Quick-lube buildings put more value below the floor in pit structures, which are generally building, and less in freestanding equipment. They tend to land lower in the published range for that reason.