Bridge and Construction Lending in Commercial RE

Introduction

Bridge and construction loans finance real estate before it is ready for permanent debt. A stabilized, fully-leased building can borrow cheaply from a life insurer, an agency, or the CMBS market; a building that is half-built, half-leased, or mid-renovation cannot, because those lenders underwrite to in-place cash flow that does not yet exist. The transitional middle, the stretch between a business plan and a stabilized asset, is the domain of bridge and construction lenders. Their loans are short, floating-rate, higher-cost, and structured around the execution of a plan rather than the certainty of a rent roll. Bridge loans commonly run 12 to 24 months at rates around 8% to 12%, averaging roughly 10.4% in late 2025, and construction loans are sized to a percentage of project cost, often 75% to 85%, rather than to value. Understanding how this capital is structured, and how its risk is contained, is essential to understanding how anything gets built or repositioned.

Permanent lenders price off stabilized, in-place cash flow, so they will not finance an asset that does not yet produce it. A property under construction has no income at all; a property being repositioned has income that is depressed or in flux; a recently completed building has not leased up enough to qualify for an agency or CMBS loan. Each of these sits in a financing gap, and bridge and construction lenders exist to span it.

The defining feature of transitional debt is that the lender underwrites to a future state, not the present one. It lends against where the asset is going (the completed building, the renovated and re-leased property, the stabilized rent roll) and prices the risk that the plan does not work out. That is why the loans are floating-rate, short-dated, and far more expensive than permanent debt: the lender is taking execution risk, not just credit risk, and expects to be repaid when the asset stabilizes and refinances into agency or other permanent financing. This transitional space is increasingly served by debt funds and mortgage REITs rather than banks, a shift detailed in debt funds and private credit RE lending.

A bridge loan funds a property through a value-creation plan, most often a lease-up or a renovation, and is repaid when the plan succeeds and the asset refinances or sells. The terms reflect the short, plan-driven nature of the capital.

Because the bridge lender is betting on execution, the underwriting centers on the credibility of the business plan and the exit. The lender asks what the asset will be worth and what it will earn once the plan is done, and whether a permanent lender will then refinance the bridge at a level that repays it. The metrics that frame this, projected LTV, DSCR, and debt yield at stabilization, are run on the future state rather than today's.

A construction loan is a distinct animal, because there is no building yet to value. It is sized not to value but to cost, through the loan-to-cost ratio, and the money is released over time as the project is built rather than funded all at once.

Loan-to-cost (LTC)

The ratio of a construction loan to the total cost of developing the project, including land, hard costs, soft costs, and reserves. Ground-up construction loans commonly reach 75% to 85% of cost for experienced sponsors, though non-recourse structures are typically limited to 55% to 60% of cost, with the sponsor's equity funding the remainder.

The mechanism that controls a construction loan is the draw process, which ties the release of funds to verified progress so the loan balance never gets ahead of the value actually built.

The interest reserve is a feature worth understanding, because it is included in the total development budget and therefore counts against the loan-to-cost calculation. The lender is effectively lending the borrower the money to pay interest during construction, which is why a project's budget must be sized to cover not just bricks and labor but the cost of carrying the loan until the building can pay for itself.

Construction lending carries a risk no other loan does: the asset might never be finished, leaving the lender with a half-built building worth less than the debt. The structure contains this through guarantees that go beyond ordinary repayment.

Completion guaranty

A guarantee, specific to construction and development loans, in which a guarantor commits to complete the project even if the borrower defaults during construction. It focuses on project performance rather than debt repayment, with exposure typically tied to the gap between the as-is and as-completed value to the extent undisbursed loan proceeds fall short, and it expires when the building receives its certificate of occupancy.

The completion guaranty sits alongside the more familiar repayment guaranty, under which a guarantor must repay the loan if the borrower defaults. The two address different fears: repayment guarantees protect against a shortfall in debt service, while completion guarantees protect against an unfinished building. Recourse is the other lever. Higher leverage usually requires personal or corporate recourse, which often burns off, reducing as the project hits milestones like certificate of occupancy or stabilization, so the sponsor's exposure shrinks as the risk falls. Non-recourse construction loans exist but at much lower leverage, typically 55% to 60% of cost, because the lender has no guarantor to pursue if the project fails. The lenders most active in this space are the banks and debt funds profiled in bank balance-sheet CRE lending, since construction monitoring is labor-intensive and suits a relationship lender or a specialist.

Once a building is complete but not yet seasoned enough for permanent debt, a gap can remain, and the mini-perm loan fills it.

Transitional lending is no longer a niche stopgap; with a large refinancing wall and evolving asset uses, bridge and construction capital has become a permanent pillar of the market.

The logic holds together as a single arc. Permanent lenders price off in-place cash flow, so anything under construction, in lease-up, or mid-repositioning falls into a gap that short-term, floating-rate, higher-cost capital fills. The risk in that gap is contained by structure: construction loans are sized to cost rather than value, released through a draw process tied to verified progress, carried by an interest reserve, and backstopped by a completion guaranty. But every transitional loan ultimately lives or dies on its exit into permanent financing, which is why a finished, fully-stabilized building can still default at maturity if the refinancing market has closed. Transitional debt is best read as a system with a built-in exit dependency, not simply as a higher rate for a riskier loan.