Adaptive reuse versus ground-up multifamily: when each pencils in Grand Rapids

Adaptive reuse is the work we are best known for. The Firestone Tire Building, the Lumberyard, the Marywood Motherhouse: these are projects that brought meaningful historic buildings back as housing, and they are the projects we are proudest of. They are also some of the hardest deals we have done. Adaptive reuse multifamily costs more per delivered unit than ground-up, takes longer to design and build, and carries surprises that a ground-up project never has to deal with. The question is not whether adaptive reuse is romantic. The question is when it actually pencils against a ground-up alternative on the same site or in the same submarket. This article is the framework we use to answer that question on a real project.

The honest cost difference

Adaptive reuse multifamily typically costs 15 to 30 percent more per delivered unit than comparable ground-up product, before tax credits and incentives. The cost premium comes from a handful of structural sources, and understanding them is the first step to evaluating whether the premium is recoverable.

Existing-building inefficiencies. Historic buildings were not designed for residential layouts. Column grids, floor-to-floor heights, window patterns, and load paths all dictate the unit floor plans available, and the result is almost always a less efficient gross-to-net ratio than ground-up new construction. More gross square feet per delivered net rentable square foot means more cost per unit.

Environmental and abatement work. Older buildings carry asbestos, lead paint, sometimes underground storage tanks, sometimes contamination from historic industrial uses. The remediation work is real money and is rarely visible from the curb. A Phase II that triggers significant abatement can move the project budget by hundreds of thousands of dollars.

Code upgrades. Bringing an existing building to current code for life safety, accessibility, energy performance, and structural standards usually involves work that ground-up construction does not require. Egress upgrades, sprinkler installations in buildings never sprinklered, structural reinforcement for residential loads, elevator additions, accessibility retrofits: each piece is its own line item.

Schedule risk. Adaptive reuse construction is harder to schedule and harder to estimate. Conditions discovered on demolition (concealed structural issues, hazardous materials, code deficiencies) push the schedule, and the schedule push converts directly to carry cost. Ground-up construction has its own risks but is fundamentally more predictable.

Against the cost premium, adaptive reuse projects often recover the gap through federal and state historic tax credits on qualifying historic buildings, brownfield TIF capture on qualifying sites, OPRA assessment freezes on qualifying obsolete properties, and lower per-square-foot land cost on an already-improved parcel. The math, when it works, generally works through the layered incentive stack we have written about in our multifamily capital stack article and our brownfield redevelopment article.

The four numbers to run

Before you commit to adaptive reuse over ground-up on a specific site, the four numbers below should be run in detail. If two or more come back unfavorable, the project is probably ground-up.

Cost per delivered unit, fully loaded

The first number is total project cost divided by delivered net rentable units, fully loaded with hard cost, soft cost, financing cost, developer fee, and contingency. Compare the adaptive reuse cost per unit against the ground-up cost per unit for a comparable program on a comparable site. The gap is the cost premium you have to recover from the incentive stack and from the rent premium.

The discipline: do this number against a real ground-up scheme, not a hypothetical one. A real ground-up scheme has the same parking, the same zoning, and the same site constraints. Most adaptive reuse projects look attractive against an imaginary ground-up alternative and less attractive against a real one.

Achievable rent per square foot

The second number is the rent per square foot the post-renovation product can actually achieve in the submarket. Adaptive reuse product, particularly in iconic historic buildings, can command a real rent premium over generic new construction. The premium is not unlimited, however, and a market study supporting the achievable rent is essential. The rent number drives the operating economics that drive the senior debt sizing that drives the gap that the incentive stack has to fill.

Eligible historic tax credit basis

The third number is the eligible basis for federal and state historic tax credits, computed against the actual project budget. Eligible basis excludes acquisition cost, certain soft costs, and any non-qualifying work, and the eligible basis is what generates the credit. A 20 percent federal historic credit on a $20M eligible basis is roughly $4M in credit equity at full pricing; the state credit, where available, stacks on top. The dollar number for your specific project depends on the eligible basis math, which depends on which parts of the work qualify as a certified rehabilitation under the Secretary of the Interior’s Standards.

Brownfield TIF capture

The fourth number is the brownfield TIF capture available on the project, computed against the project’s eligible activities (environmental remediation, demolition, site preparation, certain infrastructure) and the increment generated by the redevelopment. On qualifying sites, brownfield TIF can fund a meaningful share of the site work that ground-up construction would otherwise have to absorb directly. The Michigan brownfield framework allows capture of the tax increment over the base year for a defined term, and the capture goes to repay the eligible activities.

Run all four numbers honestly, against real comparables, and the adaptive-versus-ground-up decision usually becomes clear.

When adaptive reuse wins

Adaptive reuse beats ground-up on the following pattern.

The site is irreplaceable. Downtown locations, waterfront parcels, parcels with historic architectural character that the market values: these sites cannot be replicated, and the ground-up alternative on that specific site means tearing down the asset that justifies the location premium. Firestone Lofts is in the Grand Rapids Arts District in a building the neighborhood would not have allowed to be demolished, and the location and character together are the asset.

The eligible historic tax credit basis is substantial. Buildings on the National Register or in registered historic districts, where the qualifying rehabilitation work is a large share of the project budget, generate significant historic credit equity. On those projects, the credit equity is structural to the financing and the adaptive reuse path is the path the credits are available on.

The site has brownfield environmental that ground-up cannot unlock. On contaminated sites, the brownfield framework rewards the project that takes on the remediation. Ground-up construction has to deal with the contamination either way; adaptive reuse can layer brownfield TIF on top of the rehabilitation incentives and stack a fuller benefit.

The neighborhood political alignment favors restoration. Some neighborhoods will support a restoration of a beloved historic structure and will fight a demolition. On those sites, the adaptive reuse path is not just preferred; it is the path the entitlement process supports. The political risk on ground-up demolition can be a project-killer where adaptive reuse is welcomed.

When ground-up wins

Ground-up multifamily beats adaptive reuse on the opposite pattern.

The cost per delivered unit is materially lower. When the cost gap on a clean site exceeds what historic credits, brownfield TIF, and rent premium can recover, ground-up wins on operating economics. Most generic suburban or non-historic sites land here.

Delivery timeline matters and risk tolerance is low. Ground-up construction is more predictable on schedule and budget. For institutional capital with tight return windows and limited tolerance for schedule risk, the ground-up profile fits the underwriting better.

The unit layouts and amenities are constrained by the existing building. If the program calls for unit mix, size, or amenity profile that the existing building cannot accommodate efficiently, adaptive reuse forces compromises that hurt the rent number and the absorption. Sometimes the right answer is a new building with the right plans.

The site does not generate historic credit basis or brownfield capture. Without those incentive layers, the financial argument for adaptive reuse collapses. A non-historic, non-contaminated existing building rarely justifies the cost premium of working within its constraints when a clean ground-up alternative exists.

What we have learned at Firestone Lofts, Lumberyard Lofts, and Academy Manor

Firestone Lofts taught us how to layer federal and state historic credits with brownfield work in a constrained downtown footprint. The 21 units in the original Firestone Tire Building work because the building’s character supports a rent premium, the credit equity covered a real share of the cost premium, and the Arts District location is irreplaceable. See Firestone Lofts.

Lumberyard Lofts taught us how adaptive reuse can pair with ground-up new construction on the same project. The lumberyard structure and the 833 Michigan new building work together because each part does what it does best: the historic structure delivers character, and the new structure delivers efficient unit floor plans at a competitive cost per unit. See Lumberyard Lofts.

Academy Manor at Marywood taught us how layered financing on a 109-unit senior conversion of the historic Dominican Sisters Motherhouse holds together when the building’s character, the historic credit basis, the operating-side LIHTC equity, and the MSHDA support all line up. The project would not have been financeable on conventional debt alone, and the layered stack is what made the historic preservation outcome possible. Residents began moving in October 2024. See Marywood / Academy Manor.

The common thread: the adaptive reuse projects that work are the ones where the building, the incentive stack, and the location all do real work in the financing. Take any of the three away, and the project moves toward ground-up.

Closing

Adaptive reuse and ground-up are not ideological choices. They are financial choices that depend on the site, the building, the incentive stack, and the program. The four numbers above (cost per delivered unit, achievable rent per sf, eligible historic tax credit basis, brownfield TIF capture) usually settle the question on any specific project. We have built our practice around being honest about which path fits which deal, and we have walked away from adaptive reuse projects that did not pencil and recommended ground-up to sponsors who came to us assuming the historic path was the only path.

For more on how we approach multifamily work, see our multifamily capability page and our redevelopment capability page. For the perspective piece on why we keep coming back to historic buildings even when the math is hard, see Why we keep coming back to historic buildings.

If you are scoping a multifamily project and want to work through the adaptive reuse versus ground-up question on a specific site, get in touch.