Engineering-Based Cost Segregation Studies
An engineered study breaks a commercial building into its components and puts each one in the recovery period the law assigns it, with the documentation to show why.
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Cost segregation services for commercial real estate
The core studies built on engineered cost segregation, and the related services that sit around them: underwriting, bonus depreciation, 179D, exit planning and schedule reviews.
Engineered cost segregation studies
Each study is prepared by Engineering and signed off by our Head of Engineering, with lifetime audit defense included.
New Purchases
You bought a building for one number. Depreciation needs that number broken into land, structure, land improvements and personal property, and the default approach leaves most of it in the longest life.
Learn moreNew Construction
Ground-up construction produces the cleanest study there is. Every dollar has a line item, a drawing and a pay application behind it, so the study is built from real construction costs.
Learn moreRenovations & Tenant Improvements
Capital improvement spend is one of the most frequently mis-capitalized populations in commercial real estate. It goes onto the ledger as one line, at the longest life, and stays there.
Learn moreLook-Back Studies & Form 3115
If you have owned a commercial property for years without a study, the deduction is not lost. A look-back study claims the depreciation you missed in the current year, without amending a single prior return.
Learn morePartial Asset Dispositions
When you replace a roof, you now have two roofs on your depreciation schedule. Only one of them exists.
Learn moreQualified Production Property (QPP)
The 2025 law lets manufacturers and other producers deduct the production portion of a qualifying building in the year it is placed in service. Getting there takes a study that separates the production floor from everything else, and we are one of the only firms in the USA that can do a Production Property Study.
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Not sure?
Not sure which study fits?
Send the property details. Engineering prepares the estimate and the proposal tells you which study applies.
Request a proposalThe decisions around the study
Underwriting a deal, timing the bonus, planning an exit, cleaning up a schedule. Each is coordinated with your CPA.
Bonus Depreciation Advice
Qualifying property acquired after January 19, 2025 is eligible for 100% first-year bonus depreciation, and the 2025 law made that rate permanent. An engineered study is what puts more of a commercial building inside its reach.
Learn more179D Energy Deduction
A separate deduction from cost segregation, on a separate basis. The 2025 law closed it to property whose construction begins after June 30, 2026, so the question now is which of your projects began in time.
Learn morePre-Acquisition Depreciation Estimates
Underwrite the deal with the depreciation in it. Before you close, Engineering prepares an estimate of what an engineered study is expected to accelerate on the property you are buying.
Learn moreExit Planning: Recapture & 1031 Coordination
Accelerated depreciation is a timing benefit, and the exit is where the timing comes due. We work with your CPA before a sale or exchange so recapture and the 1031 rules are planned for in advance.
Learn moreFixed Asset & Depreciation Schedule Reviews
Most commercial depreciation schedules carry the same few errors for years: a building on one line, improvements in the wrong life, retired components still depreciating. A review finds them, and we coordinate the fixes with your CPA.
Learn morePortfolio & Fund Programs
Every property studied the same way, with one coordinator, for syndicators, funds and portfolio owners.
Learn moreNot sure which study you need?
Most owners need more than one. Send the property details and the proposal will tell you which engagements apply.
Service questions
Still have a question? Ask Engineering.
Which study do we need?
It depends on how and when you acquired or built the property. Send the details and the proposal will tell you which engagements apply.
Can we combine services?
Often, yes. A renovation study and a partial asset disposition share the same site tour, and a pre-acquisition estimate leads into the study after closing.
Do your studies follow the IRS audit guide?
Yes. Every study follows the IRS Cost Segregation Audit Techniques Guide (CSATG) to the line.
Is audit defense included?
Yes. Lifetime audit defense for the taxpayer and the property while under their ownership is included with every study.
Get a Commercial Savings Estimate
Fixed-fee proposal in 24 to 48 hours.
- Prepared by Engineering
- Lifetime audit defense
- NDAs available
info@senecacostseg.com
1210 Jackson St SE, Suite 2, Albany, OR 97322
Request your estimate
Estimates are prepared by our Engineering team.
Request received
Engineering will review the property and send your written estimate and proposal within 24 to 48 hours.
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