Historic rehabilitation projects are among the most complex transactions a construction lender will encounter. The combination of preservation requirements, unknown existing conditions, and layered financing structures creates a risk profile unlike anything in new construction. After four decades reviewing these projects across New Orleans and the Gulf South, we have seen the same oversights surface — and the same early interventions prevent serious problems.
Why Historic Rehabs Are a Different Animal
Standard new construction lending follows a relatively predictable path: approved plans, a qualified contractor, a clear budget, and a draw schedule tied to completion milestones. Historic rehabilitation adds several layers of complexity to every one of those elements.
First, the existing structure is often a source of unknown conditions. Asbestos, lead paint, compromised structural members, outdated electrical and mechanical systems, and subfoundation issues frequently appear during demolition that were not visible during due diligence. Each discovery has the potential to change the budget and schedule.
Second, the project operates under the jurisdiction of the State Historic Preservation Office (SHPO) and, for federally assisted projects, the National Park Service. Any scope of work that affects character-defining features requires SHPO review and approval — a process that can add weeks or months to a project timeline if not managed proactively.
Third, many historic rehabs are financed with historic tax credits (HTCs), which carry their own compliance requirements and monitoring obligations that extend years beyond construction completion.
What a Pre-Closing Review Should Address
A standard pre-closing construction documents review is necessary but not sufficient for a historic rehab. Here is what the review needs to specifically address:
- Part 1 and Part 2 Historic Tax Credit Applications. The construction documents must align with the approved scope — and any deviations need a documented amendment process before work proceeds.
- Contingency adequacy. For a historic rehab with significant gut work, 10 to 15 percent is more appropriate than the standard 5 to 7 percent.
- GC experience with historic work specifically. The review should evaluate the GC's track record with comparable projects, not just commercial construction generally.
- SHPO coordination plan. The project schedule should include explicit milestones for SHPO submittals and review periods.
- Unknown conditions allowance. The budget should include a clearly labeled line item for unknown existing conditions, separate from the general contingency.
Draw Request Review on Historic Projects
Once construction is underway, draw request review on a historic rehab requires the consultant to evaluate not just percentage of completion, but whether the work completed is being executed in compliance with the Secretary of the Interior's Standards for Rehabilitation.
We have seen lenders fund draws for window replacements that later required remediation because the contractor substituted a non-approved window unit. The cost to remove non-compliant work and replace it with an approved product was substantial — and the lender had already paid for the non-compliant installation.
The Bottom Line for Lenders
Historic rehabilitation projects are viable, often highly profitable transactions when properly underwritten and monitored. The key is recognizing that standard construction lending due diligence protocols are a starting point, not a complete solution.
"An independent construction consultant with specific experience in historic rehabilitation is essential to protecting the lender's position from pre-closing through final draw."