Commercial properties experiencing elevated vacancy—whether due to recent ground-up completion, major tenant departures, or transitional repositioning—cannot qualify for conventional permanent bank mortgages. Lease-up bridge loans provide interest-only debt with built-in capital reserves.
Interest Reserve Sizing12 to 24 months of capitalized debt service during absorption
Permanent Exit CriteriaRefinances into agency, CMBS, or bank debt upon reaching 85%–90% occupancy
* Lease-up bridge terms and interest reserve requirements depend on submarket absorption velocities and sponsor repositioning track record.
Why Sub-Stabilized Commercial Assets Need Specialized Bridge Debt
Conventional commercial lenders require properties to demonstrate at least 85% to 90% physical occupancy and 90 days of sustained collections before issuing a permanent mortgage commitment. If a 100,000 sq. ft. industrial building or retail center is currently 45% occupied, in-place cash flow cannot satisfy standard 1.25x DSCR debt service covenants.
Lease-up bridge facilities bridge this critical capital gap. Rather than sizing debt purely on current cash flow, private debt funds and transitional balance-sheet lenders evaluate the property’s "as-stabilized" market value, funding the capital necessary to lease the building to full capacity.
The Anatomy of a Lease-Up Bridge Loan Facility
A properly structured lease-up bridge facility contains three dedicated capital components:
1. Initial Closing Advance
Funds the initial purchase price or pays off the existing maturing loan. This advance is sized conservatively based on the property’s current as-is dark or semi-occupied valuation (typically 55% to 65% as-is LTV).
Refinances existing debt or funds property acquisition
Establishes the initial interest-only payment obligation
Secured by first-lien deed of trust or mortgage
2. Dedicated Future Funding TI/LC Facility
As the sponsor signs new creditworthy commercial leases, the lender advances 100% of the agreed Tenant Improvement (TI) allowances and Leasing Commissions (LC) directly from an un-drawn loan commitment line. The borrower only pays interest on these funds after they are drawn.
Zero interest drag on undrawn loan balances
Reimburses approved tenant buildout construction invoices
Accelerates tenant move-in and rent commencement dates
3. Capitalized Interest Reserve
Because in-place rent is insufficient to cover monthly interest payments during early lease-up, the lender escrows an interest reserve directly into the loan facility. Monthly debt service is drawn automatically from this reserve, ensuring the loan stays completely current while leasing progresses.
Protects sponsor from negative monthly operating cash flow
Sized based on realistic absorption schedule plus a 3 to 6-month buffer
Unused interest reserve balances reduce the final payoff balance
Planning the Permanent Takeout Exit Strategy
The ultimate goal of every lease-up bridge loan is rapid conversion into low-cost permanent debt. As the property approaches 85% to 90% occupancy and newly installed tenants complete their rent-concession periods, the sponsor initiates permanent takeout underwriting.
Securing an indicative permanent term sheet 6 months prior to bridge loan maturity ensures a smooth, cost-effective transition into long-term fixed-rate financing.
Frequently Answered Questions
Common Questions About Lease-Up Bridge Loans: Financing Vacant & Value-Add Commercial Properties
Direct, transparent answers regarding underwriting standards, documentation, and process.
Bridge Structuring
How do commercial lease-up bridge loans work?
Direct Answer
Lease-up bridge loans provide short-term (2-3 year) interest-only financing with built-in interest reserves and future funding lines to cover tenant improvements and leasing commissions while filling vacant space.
Once the building reaches stabilized 85%+ occupancy, the bridge loan is refinanced into a long-term fixed-rate mortgage.
Interest Drag
Do borrowers pay interest on undrawn TI/LC reserves in a bridge loan?
Direct Answer
No, in institutional commercial bridge loans, borrowers pay interest only on funds actually drawn and disbursed, eliminating interest drag on the remaining committed line.
Some lenders charge a nominal unused line fee (e.g., 0.25% to 0.50%) on undrawn facility balances.
Connect with our commercial underwriting team. We provide prompt indicative pricing, leverage sizing, and lender placement strategy upon scenario review.
