REVERSIBLE DESIGN & VOLUMETRIC CONSTRUCTION

Modular buildings engineered for mobility qualify for a different depreciation schedule.

Reversible Design refers to buildings made from prefabricated modules engineered to be relocated, resized, or reused without major structural damage. Because those modules are built for mobility, many of their components meet the IRS's own definition of personal property rather than permanent real property — opening the door to substantially accelerated depreciation.

Modular volumetric construction units being assembled

HOW IT WORKS

Cost segregation dissects the modular components

A Reversible Design study breaks the property into key asset groups — volumetric modular units, mechanical/electrical/plumbing systems, interior finishes, and site improvements — then applies the IRS's Whiteco factors to determine which components qualify as personal property.

Movability

Modules are built to be transported and reinstalled.

Manner of attachment

Designed with reversible, engineered connections rather than permanent fixing.

Intended use

Often built as temporary or adaptable structures from the outset.

Relocation costs

Lower relocation cost, due to engineering specifically for disassembly.

Damage upon removal

Minimal structural damage when a module is detached.

Custom design

Modules often adaptable across multiple future sites and uses.

THE NUMBERS

Traditional modular vs. modular + Reversible Design

From a 150-room modular hotel case: 80% of the project qualified for short-life classes.

Feature	Traditional modular	Modular + Reversible Design
Depreciation treatment	100% treated as 39-year real property	Up to 80% reclassified into 5- and 15-year property
Year 1 tax deduction	Standard MACRS depreciation	Bonus + 5/15-year write-offs totaling $6.2M
Cash-flow impact	Modest, phased over decades	Over $2.5M after-tax in Year 1
Asset mobility	Permanent installation; demolition/rebuild required	Engineered for clean detachment and relocation
Renovation flexibility	High cost and downtime for reconfiguration	Fast, plug-and-play re-layouts with zero demolition waste
IRS audit support	Standard as-built documentation	Full Whiteco-factor analysis and turnkey Form 3115 filing

RESULTS

Recent Reversible Design engagements

Student housing complex

A 200-bed modular dormitory reclassified interior finishes and non-structural partitions into 7-year assets, yielding $2.1M in bonus depreciation.

Healthcare clinic expansion

Prefabricated exam room modules had flooring, cabinetry, and medical gas piping classified as 15-year property, unlocking $1.3M in Year 1 deductions.

Workforce housing development

A 100-unit worker accommodation site treated modular living units and site improvements as 5- and 15-year assets, generating $850K in first-year savings.

HOW IT WORKS

From depreciation schedule to filed study

Submit your schedule

Share your federal depreciation schedule, property addresses, and a brief description of the modular design.

Feasibility analysis

We assess which modular components qualify for accelerated depreciation and outline the relevant Whiteco factors.

Engagement

Review and sign an engagement letter tailored to your Reversible Design study.

Data collection

Module drawings, connection details, factory cost breakdowns, and delivery manifests, alongside standard blueprints and appraisals.

On-site survey

Engineers photograph, tag, and measure each building, attachment point, and MEP system.

Final report

A comprehensive study showing reclassified assets and depreciation schedules, with Form 3115 prepared if requested.

FAQ

Reversible Design questions, answered

What is Reversible Design?

Buildings made from prefabricated modules engineered to be relocated, resized, or reused without major structural damage — as opposed to traditional stick-built or permanently installed modular construction.

Why does it qualify for more accelerated depreciation?

Because the components are engineered for mobility, many meet the IRS Whiteco factors for personal property rather than permanent real property, allowing a larger share of the project cost to be reclassified into 5-, 7-, or 15-year recovery periods.

What property types commonly use it?

Modular hotels, student housing, healthcare facilities, workforce accommodations, multi-family developments, and temporary or semi-permanent commercial buildings.