Rethinking Old Buildings for Adaptive Reuse

Across Colorado, more developers, owners, and investors are taking a fresh look at buildings that were designed for one purpose but may now be better suited for another.

Former schools are being converted into housing, older manufacturing facilities are being reimagined as multifamily communities, and vacant or underused office buildings are being evaluated for residential, hospitality, or mixed-use concepts.

Why Adaptive Reuse Is Getting Attention Now

Adaptive reuse isn't new. What feels different today is the volume of opportunity and the reasons behind it. New work patterns, shifting office demand, housing shortages, construction costs, and community interest in preserving neighborhood character have all pushed adaptive reuse back into the spotlight.

Adaptive reuse is very different from ground-up development. The physical structure already exists, but the tax and accounting analysis often becomes more complicated, not less.

A developer converting an old school, warehouse, or manufacturing plant into rental housing must consider how costs are classified, what incentives may be available, and how the project timeline affects the financial model.

Capitalization vs. Repairs

One of the first issues is the distinction between repairs and capital improvements. In a typical adaptive reuse project, much of the work isn't merely maintaining the building. The project may involve changing the building’s use entirely, such as converting classrooms, offices or industrial space into apartments. That type of work is generally capitalized for tax purposes rather than deducted immediately.

Structural work, new systems, layout changes, elevators, plumbing, electrical upgrades, and major interior buildouts usually become part of the building’s tax basis and are recovered over time through depreciation.

That doesn’t mean every dollar is treated the same way. A detailed review of project costs can identify whether certain items may have shorter depreciable lives or different treatment. Developers should track costs by category from the beginning, rather than waiting until year-end or after construction is complete.

A thoughtful cost segregation analysis may also help identify components that can be depreciated over a shorter period than the building itself, improving early-year cash flow.

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Historic Tax Credits

Historic tax credits are another major reason adaptive reuse projects receive attention, especially in Colorado communities with older commercial corridors, schools, warehouses, and civic buildings. At the federal level, the historic rehabilitation credit generally provides a credit equal to 20% of qualified rehabilitation expenditures for certified historic structures, claimed ratably over a five-year period.

Colorado also has a Commercial Historic Preservation Tax Credit program with tax credit rates ranging from 20% to 40% depending on project location and amount of expenditures.

Historic credits can be valuable, but they require planning. Not every old building qualifies and not every project cost qualifies. Acquisition costs, additions, site work, and certain non-building costs may be excluded from credit generating qualified rehabilitation expenditures.

The project also must satisfy preservation standards, which can influence design, construction sequencing, documentation, and overall project cost.

Affordable Housing and LIHTCs

Adaptive reuse also frequently intersects with affordable housing. Converting an older building into rental housing may create an opportunity to use Low-Income Housing Tax Credits (LIHTCs).

When LIHTCs are combined with historic tax credits, the economics can become more attractive, but the calculations are more complex. Developers must consider eligible basis, qualified basis, placed-in-service timing, compliance obligations, and how one incentive may affect another.

For example, a former school converted into affordable housing may involve rehabilitation expenditures, historic preservation requirements, and affordable housing compliance rules all at once. Each program has its own definitions, timelines, and documentation standards, so coordination is essential.

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Brownfield and Environmental Costs

Environmental conditions are another common issue. Older buildings may contain asbestos, lead paint, underground tanks, contaminated soil, or other environmental concerns. From a development standpoint, remediation can be a practical necessity. From a tax and accounting standpoint, the treatment depends on the facts.

Some environmental costs may be capitalized as part of preparing the property for its new use, while others may be analyzed differently depending on when the costs are incurred and what they accomplish. These costs can also affect financing, reserves, contingencies, and overall feasibility.

Because environmental issues can appear early in due diligence or later during construction, developers should build flexibility into both the project budget and the accounting process.

Interest Capitalization

During redevelopment, interest and certain carrying costs may need to be capitalized into the project rather than expensed currently. For adaptive reuse projects with long predevelopment periods, financing changes, or phased openings, the timing can become important.

When does the capitalization period begin? When does it end? What happens if part of the building is placed in service before the rest? These questions can affect taxable income, book reporting, and lender expectations.

The issue is especially relevant in adaptive reuse because projects may not move in a straight line. A building might require environmental work, historic approvals, redesign, financing adjustments, and phased construction before it is fully operational.

Property Tax and Local Incentives

Another financial consideration is property tax. A building that has been vacant or underutilized may have one assessed value before redevelopment and another after completion. Local incentives, abatements, tax increment financing or other public-private tools may also be part of the capital stack.

These arrangements should be modeled carefully because they can affect projected operating income, debt service coverage and investor returns. They may also come with compliance requirements that need to be monitored after the project is complete.

Documentation Matters

Finally, adaptive reuse requires strong documentation. If contemporaneous records are not maintained and organized as the project progresses, it becomes much harder to support tax positions or incentive applications later. The best time to think about documentation is not after construction is complete, but during planning, budgeting, and project setup.

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A Redevelopment Strategy, Not Just a Renovation

The broader reason adaptive reuse is being discussed “around town” is simple: many communities have buildings whose original purpose has run its course, while demand for housing and new uses continues to grow. Adaptive reuse can help bridge that gap.

But financially, it's not just a renovation project. It is a redevelopment strategy with its own tax, accounting, and incentive considerations. For developers evaluating these opportunities, the best approach is to bring tax and accounting advisors into the conversation early.