Building from the ground up is a different financing problem than buying something that already stands. There is no finished house to appraise, no existing rental income to point to — just a parcel of land, a set of plans, a budget, and a projected value that only materializes if the project is executed well. Financing has to account for all of that uncertainty, which is why a ground-up construction loan is structured so differently from a standard purchase mortgage.
Westpark Loans is a California mortgage brokerage, not a lender. We do not fund loans with our own capital. Our role is to understand a builder’s or investor’s project and match them with lending partners who offer ground-up construction programs. Construction lending is among the more complex corners of real estate finance, and programs vary considerably from one lender to the next — so seeing more than one structure matters. This guide walks through how these loans work, how they are underwritten, why they carry more complexity, and how the exit ties it all together.
What a Ground-Up Construction Loan Is
A ground-up construction loan finances the building of a new structure from the dirt up. Rather than handing over the full loan amount at closing, the lender commits to fund the project in stages as the work progresses. The borrower draws money as construction reaches defined milestones, and the lender confirms progress before releasing each portion.
This is business-purpose financing used by developers, builders, and investors. It is short-term by design — the loan covers the construction period, not the long-term hold. When the building is complete, the borrower transitions out of the construction loan through a defined exit, which we cover below. Understanding that lifecycle is essential to using the product well.
How Draw Schedules Work
The defining feature of a construction loan is the draw schedule. Because the lender is funding a project that does not yet exist, it releases money in increments tied to progress rather than all at once.
- Funds release in phases. The loan is broken into draws that correspond to construction milestones — site work, foundation, framing, and so on through completion.
- Progress is verified before funding. Lenders typically require inspection or documentation confirming that a phase is complete before releasing the next draw.
- Interest generally accrues on what is drawn. Because you are not holding the full balance from day one, interest is usually charged on the amount actually disbursed, though the specifics are program-dependent.
- The schedule is agreed up front. The phases and the amount tied to each are set at the outset, which makes an accurate budget critical.
This structure protects both sides: the lender funds against real progress, and the borrower is not carrying the entire balance before the work justifies it. But it also means cash flow during the build depends on hitting milestones on schedule.
How These Loans Are Underwritten
With no finished property to evaluate, the lender underwrites a ground-up construction loan against three things working together: the land, the budget, and the projected value of the completed project.
The land establishes the starting point and the borrower’s equity in the deal. The construction budget — the detailed cost to build — shows whether the project is realistically scoped. And the projected value, often expressed as the expected value once the build is complete, tells the lender what the finished asset should be worth. Lenders weigh these together, and the borrower’s experience and the credibility of the plan factor in as well. Because the loan is sized against a future outcome, leverage and terms are program-dependent and vary by lender and approval criteria — there is no single formula. A realistic, well-documented budget and a defensible value projection do more to shape the outcome than almost anything else.
Why Construction Lending Is More Complex
Ground-up loans carry more moving parts than a standard mortgage, and it helps to know that going in.
- More uncertainty. The lender is financing a projection, not a finished asset, which naturally invites more scrutiny.
- More documentation. Plans, permits, budgets, contractor information, and timelines all become part of the file.
- Ongoing administration. The draw process continues throughout the build, with inspections and disbursements at each phase.
- Timeline risk. Construction can run long or over budget, and both affect carrying costs and the path to the exit.
This complexity is not a reason to avoid building — it is a reason to plan carefully and to work with people who understand how the product behaves over the life of a project.
Planning the Exit
A ground-up construction loan is a means to an end, and the exit is part of the plan from the start. Because the loan is short-term, the borrower needs a defined way out once the structure is complete.
Common exits include refinancing into longer-term financing if the property will be held, or selling the completed property if the strategy is to build and sell. The right exit shapes how the whole deal should be structured, so it is worth settling before the first draw. If you are weighing a build, the ground-up construction loan programs we access through our lending partners are a good starting point, and related options such as fix-and-flip loans for renovation projects or bridge loans for timing the exit may also fit depending on your plan. A broker’s job is to line up the financing and the exit so they work together from the dirt to the finished building.
Westpark Loans is a mortgage brokerage that connects borrowers with lending partners. This article is educational and is not a commitment to lend or an offer of specific terms. Leverage, rates, fees, and program terms vary by lender and approval criteria.