Case Studies: Office Building

Our office building cost segregation case studies provide insight into how business offices and office blocks can reduce their tax liability. Read through the following examples to discover how your office might benefit from a cost segregation study.

Office building owners and commercial real estate investors can significantly enhance their property’s cash flow by reclassifying long-term structural costs into accelerated depreciation categories. Engineered Tax Services helps these owners transition away from the standard 39-year depreciation schedule by identifying non-structural components—such as decorative lighting, specialized electrical systems for data centers, high-end interior finishes, and security systems—that qualify for 5, 7, or 15-year recovery periods. Because an office building often undergoes frequent tenant improvements and interior fit-outs, an ETS engineering-based study typically reclassifies 20% to 30% of the total building cost, providing immediate tax relief that can be reinvested into facility upgrades or portfolio expansion.

Office Building Case Studies

The infrastructure of a modern office building offers extensive opportunities for tax recovery, ranging from specialized communication wiring to land improvements like parking lots and landscaping. Engineered Tax Services meticulously documents these assets to move them out of the standard 39-year commercial life cycle, with results including a $2.5 million facility in Portland that realized over $662,000 in first-year depreciation. Furthermore, ETS captures massive value through the Section 179D energy tax deduction for high-efficiency HVAC, lighting, and building envelope systems, which can reach up to $5.81 per square foot in 2025. These results demonstrate how Engineered Tax Services delivers the technical precision and IRS-compliant documentation necessary to maximize Net Present Value and ensure a defensible tax position for commercial landlords.