Home/Resources/Commercial property

Financing ground-up commercial construction

By Klark Sparks  ·  September 14, 2026  ·  7 min read

The short answer

Construction lending pays out in draws against inspected progress rather than as a lump sum, requires more equity than a purchase, and carries interest during construction before the building earns anything. It also needs a plan for what repays it at completion — the takeout — arranged before you start.

Part of our guide to Commercial Real Estate — what it is, what it costs, and who it suits.

Not sure this is the right product at all? The Idaho small business funding guide covers every option an Idaho business has.

Building is not buying, and the financing reflects it. A construction loan is a different product with a different shape, and the differences are the sort that cause problems when discovered late.

Money arrives in stages

Funds are released in draws as work is completed and inspected, not handed over at closing. Each draw involves a request, an inspection, approval and funding — days to a couple of weeks depending on the lender and the inspector.

Your contractor, meanwhile, expects to be paid. So you need working capital to bridge each stage, and that is above and beyond your equity contribution. It is the most consistently underestimated part of a construction project.

Interest during construction

You pay interest on what has been drawn while the building produces nothing. On a twelve-month build that is a substantial line item, and it grows as more of the loan is drawn toward the end.

Some construction loans allow interest to be capitalised into the facility rather than paid out of pocket. Ask, because it materially changes your cash requirement during the build.

Every week of delay costs interest on the drawn balance plus whatever you are still paying at your existing premises. Schedule overruns on construction are not just inconvenient; they are a direct and compounding cost.

The takeout

A construction loan is short-term by design and something has to repay it at completion — the takeout. Usually permanent financing on the finished building.

This has to be planned before you break ground. An SBA 504 can sometimes cover construction and convert to permanent financing, which removes the risk of arriving at completion with a facility maturing and no permanent loan arranged. Conventional construction lending more often expects you to arrange the takeout separately.

Discovering at month ten that permanent financing is harder to get than assumed, with a construction loan maturing, is the worst position in commercial property finance.

More equity, more scrutiny

  • Equity requirements are higher than for a purchase, because an unfinished building is poor collateral.
  • The contractor is underwritten too — experience, financial stability, sometimes bonding. A lender may decline your builder.
  • Fixed-price contracts are strongly preferred over cost-plus, because they cap the lender’s exposure to overrun.
  • Plans, permits and a detailed budget are required upfront, not developed as you go.
  • A contingency within the budget is effectively mandatory rather than advisable.

What goes wrong locally

The same things that affect every Idaho build: permitting timelines that vary by jurisdiction, subcontractor availability competing against residential construction, and material lead times. In fast-growing markets like Chubbuck, Meridian, Star and Post Falls, trade availability is a genuine constraint rather than a formality, and a schedule built on ideal conditions will not survive.

Build schedule contingency and cost it. A three-month overrun on a construction loan is expensive in a way that a three-month overrun on a lease is not.

Should you build at all?

Worth asking honestly. Building gives you exactly what you want and carries execution risk, a longer timeline and a higher cost of capital during the process. Buying an existing building is faster, cheaper to finance and usually a compromise.

For a business with genuinely specific requirements — a particular clear height, a specific process layout, a location where nothing suitable exists — building is right. For a business that would be perfectly well served by an existing building, the premium is real and not always worth paying.

Common questions

Can SBA finance new construction?
Yes, 504 can be used for ground-up construction of owner-occupied property, with occupancy requirements that differ from those for existing buildings. It can also provide the permanent financing, which removes takeout risk.
How much equity do I need for construction?
More than for purchasing an existing building, because an unfinished structure is weak collateral. The exact figure depends on the project, the programme and your business.
Does the lender approve my contractor?
Frequently yes. Experience, financial stability and sometimes bonding are assessed, and a lender can decline a builder. Worth establishing early if you have someone specific in mind.
What if construction costs overrun?
You fund the difference, which is why a contingency inside the budget is effectively required. Increasing a construction loan mid-project is difficult, slow, and occasionally impossible.

Want this applied to your actual numbers?

Reading about it only gets you so far. One short application, a soft credit pull, and a straight answer about what fits.