Expensive to build, honest to study
Lab buildings cost multiples of ordinary office to construct, and owners reasonably hope the study scales with the price tag. The honest answer is more nuanced. What makes labs expensive is largely air: one-pass ventilation, big air handlers, exhaust stacks, and the controls that keep pressure cascades stable. Most of that serves the building's habitability and safety envelope, and it predominantly stays 39-year. That is why Engineered Tax Services reports a disciplined 20% to 30% for research facilities rather than the fantasy numbers lab owners are sometimes quoted.
What does move is still substantial: fume hoods and biosafety cabinets with their dedicated exhaust runs, lab casework and benches, specialty gas, vacuum, and DI water systems, dedicated and conditioned power serving instruments, backup generation beyond code minimum, cold rooms and environmental chambers (equipment, not rooms), and the data-dense low-voltage layer. On a big facility, 25% of an expensive basis is a large number.
Research real estate also never travels alone: the tenant's R&D tax position (research credits, and OBBBA's restored current deduction for domestic research costs) runs beside the depreciation file, and for owner-occupiers the two files share records and planning calendar.
Providers who promise 40%-plus on a standard lab are usually counting building-serving HVAC as process equipment, a classification the IRS Cost Segregation ATG specifically scrutinizes. A defensible lab study allocates air handling by what it actually serves, and it lands in the honest range.
The Lab Component Map
What serves science versus what serves the building.
| Component | MACRS life | Notes |
|---|---|---|
| Fume hoods, biosafety cabinets, dedicated exhaust runs | 5-year | Equipment and the systems existing for it |
| Lab casework, benches, mobile tables, shelving | 5-year | Furniture-class lab fit-out |
| Specialty gas, vacuum, compressed air, DI/RO water systems | 5-year | Process utilities serving research |
| Dedicated/conditioned power, UPS serving instruments | 5-year | Allocated share of electrical |
| Cold rooms, environmental chambers, glassware washers | 5-year | Equipment, including walk-in units |
| Backup generation beyond code-required life safety | 5-year | Equipment-serving share allocated |
| Data cabling, security, access control, monitoring | 5-year | The low-voltage layer |
| Parking, site utilities, landscaping | 15-year | Land improvements |
| General lab HVAC, air handlers, exhaust stacks, controls | 39-year (mostly) | Building-serving air; allocation is the scrutinized judgment |
| Shell, cleanroom envelope structure, corridors, offices | 39-year | The building |
Cleanrooms split: the envelope is building; process-specific air and utility systems within can lean equipment. The allocation evidence is the audit file.
Worked example (illustrative)
Single-tenant lab building, $16M construction (excluding land)
- Construction cost
- $16,000,000
- 5-year: hoods, casework, specialty systems, power, chambers
- $3,300,000
- 15-year: parking and site
- $700,000
- Total accelerated (25% of basis)
- $4,000,000
- Year 1 deduction with 100% bonus
- ~$4,000,000 plus ~$308,000 straight-line
Illustrative round numbers at the middle of the ETS 20-30% range. Instrumentation itself (the science equipment) is 5-year property from its own invoices, outside the study.
Hypothetical case study
The biotech landlord and the second-generation lab
This is a hypothetical, illustrative composite, not an actual client or an actual result. Savings vary with your income, entity, state, and how usable the losses are.
A hypothetical life-science landlord buys a first-generation lab building for $16M and re-leases it to a new biotech tenant with a $4M second-generation fit-out, landlord-funded under the lease.
The acquisition study accelerates roughly $4M. The re-fit then writes off about $900,000 of remaining basis in the demolished first-generation casework, hoods, and specialty systems as partial dispositions, while the new fit-out lands as bonus-eligible 5-year property and QIP. In this hypothetical, the landlord's first two years carry over $8M of deductions on a building whose seller had been depreciating one 39-year line.
Hypothetical composite, not client figures. Lab buildings turn over their guts every tenancy; the study is what makes each turnover claimable.
Coordinating the R&D Tax File
The depreciation study's sibling, sharing the same records.
For owner-occupied research facilities, two tax files run in parallel. The building file: study, schedules, dispositions, as covered here. And the research file: the Section 41 research credit on qualifying wages, supplies, and contract research, plus OBBBA's restoration of current deduction for domestic research costs, which ended the capitalization era for most domestic R&E spending. The files share project records, and coordination prevents both gaps and double counting: equipment depreciation is not a research expenditure, supplies consumed in R&D are not capital, and the boundary cases (prototype tooling, pilot systems) deserve deliberate placement.
For landlords, the research file belongs to the tenant, but lease structure still matters: who funds and owns fit-out determines whose schedule each generation of lab systems lands on, exactly as in medical office and restaurant leasing.
Taxstra Tip
Put instrument-grade power and specialty utility stub-outs in the base building design where tenant demand supports it: landlord-owned, study-eligible infrastructure that also shortens tenant fit-out timelines is the rare improvement both sides of the lease want.
The Research Owner's Stack
Around the study: energy, entities, and the look-back.
- Section 179D on lab HVAC and lighting retrofits, where efficiency projects meet certification standards despite labs' high baseline loads.
- Generator and resilience upgrades: the equipment-serving share reclassifies, and the disposition of replaced units claims out.
- Owner-occupier structures (real estate LLC renting to the research company) run the standard self-rental and grouping analysis.
- University-adjacent and nonprofit-partnered buildings need the UBIT and ownership analysis before modeling any of this.
- Look-back studies on held lab buildings, where prior fit-out generations sit lumped in 39-year basis.
- Instrumentation purchases claim bonus or Section 179 from invoices; keep the instrument ledger separate from construction.
Delivering Lab Engagements
Disciplined engineering plus the parallel-file coordination.
We coordinate lab studies through Engineered Tax Services, scoped to the allocation evidence the ATG scrutinizes, and Taxstra runs the parallel files: schedules and dispositions, the R&D expensing and credit coordination, Form 3115 look-backs, and the lease-structure work for landlords.
Disclosure: Taxstra may receive a referral fee if you engage ETS through links on this page.
Estimate Your Savings
A quick estimate from the ETS calculator, then a study only if the numbers justify it.
Estimate Your Cost Segregation Savings
Run your property through the Engineered Tax Services savings calculator for a quick estimate, then have Taxstra pressure-test the number against your full tax picture.
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Calculator provided by Engineered Tax Services. Estimates are educational only and depend on an engineering-based study of your specific property; results are not individualized tax advice.
Disclosure: Taxstra may receive a referral fee if you engage Engineered Tax Services through links on this page. That relationship does not change your price, and it is not a recommendation for your specific situation.
See What a Study Could Do for Your Property
Engineered Tax Services performs the engineering-based study. Taxstra turns the report into actual tax savings on your return and coordinates the strategy around it. Start with their calculator or real case studies.
Want proof first? See real client case studies from ETS with the numbers behind each study.
Disclosure: Taxstra may receive a referral fee if you engage Engineered Tax Services through links on this page. That relationship does not change your price, and it is not a recommendation for your specific situation.
What to check before you order a study
The pre-study review that decides whether the deduction is actually usable.
Reject fantasy quotes: demand allocation methodology for air handling in the proposal.
Separate instrumentation invoices from construction basis.
Map fit-out ownership by lease generation before the study.
Coordinate the R&D expensing and credit file with the same project records.
Confirm the entity/UBIT picture for university-adjacent structures.
Model the honest range in the cost segregation estimator.