| Detail | Explanation |
|---|---|
| Starts | At construction completion, renovation completion, or a major vacancy |
| Ends | At stabilization, when occupancy and income reach the underwritten level |
| Measured by | Absorption pace, occupancy, and effective rent after concessions |
| Main costs | Interest shortfall, concessions, leasing commissions, and tenant improvements |
| Financed with | Construction loans, bridge loans, and mini-perm loans |
How do lenders underwrite lease-up?
A lender starts with the absorption assumption: how many units or square feet the market will absorb each month at the projected rent. It compares that pace with competing properties, recent deliveries in the submarket, and any pre-leasing already signed. Apartments and self-storage lease in many small increments, while office, retail, and industrial lease-up turns on a few larger tenants and their improvement packages.
The lender then asks what the property costs to carry until it stabilizes. That carry is the gap between net operating income and interest, plus concessions, leasing commissions, and tenant improvement dollars. The answer sets the size of the interest reserve and any leasing reserve built into the loan.
Worked example
In this hypothetical example, a newly completed property carries a $30,000,000 floating-rate construction loan at an assumed 7.50% rate, so interest on the fully drawn balance comes to $562,500 per quarter. Net operating income grows each quarter as units lease. The interest reserve must cover each quarter's shortfall until income catches up. All figures are illustrative.
Lease-up shortfall for a period = interest due minus net operating income for that period
| Quarter | Net operating income | Interest due | Shortfall funded by reserve |
|---|---|---|---|
| Quarter 1 | $100,000 | $562,500 | $462,500 |
| Quarter 2 | $275,000 | $562,500 | $287,500 |
| Quarter 3 | $450,000 | $562,500 | $112,500 |
| Quarter 4 | $560,000 | $562,500 | $2,500 |
| Total | $1,385,000 | $2,250,000 | $865,000 |
What slows down a lease-up?
Each of these extends the time until the property qualifies for a takeout loan. Sponsors protect against them with conservative absorption assumptions, extension options on the loan, and an interest rate cap on floating-rate debt.
- New competing supply delivering in the same submarket at the same time
- Rents set above what the market will pay, which forces concessions
- Construction delays that push the opening into a slower leasing season
- Large-tenant deals that stall on improvement allowances or credit approval
- Rising floating rates that increase interest cost while income is still low
How does lease-up affect loan sizing?
A property in lease-up has not earned its stabilized income yet, so a lender weighs the as-is value against the as-stabilized value and holds back part of the proceeds for the reserves above. A permanent lender generally waits until the income is in place and sizes on actual results.
Capital Partners arranges construction loans and bridge loans that carry properties through lease-up. Use the DSCR calculator to test coverage at stabilized income, then submit the property with the leasing plan.
Common questions
How long does lease-up take?
It depends on the property type, size, submarket, and competing supply. A lender will want the absorption assumption supported by leasing data from comparable properties rather than a single projected date.
What does stabilized occupancy mean?
Stabilized occupancy is the level a property is expected to hold over time under normal market conditions, after the initial lease-up. The lender and appraiser define it for each deal, usually by reference to comparable stabilized properties.
Can I get a permanent loan during lease-up?
Usually not on full proceeds. Most permanent lenders size on in-place income, so a property still leasing up is typically financed with a bridge loan, a construction loan extension, or a mini-perm until income stabilizes.
What is an interest reserve for lease-up?
It is money set aside in the loan budget to pay interest while income is too low to cover it. The lender draws on the reserve each month, and the size of the reserve is based on the underwritten lease-up schedule.
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