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Phoenix Capital · 6/23/2026

How to Finance Horizontal and Vertical Construction in One Loan

Learn exactly how to finance horizontal and vertical construction in one loan. We explain the mechanics, loan-to-cost limits, and requirements for developers building 2 to 30 units.

To understand exactly how to finance horizontal and vertical construction in one loan, you need to structure a single private development facility that covers land acquisition, site preparation, and building erection under one continuous draw schedule. Instead of taking out a short-term land loan to grade the dirt and lay utilities, followed by a completely separate ground-up construction loan to build the structures, a combined development loan covers up to 75 percent of the total project cost from raw dirt to final drywall. This single-close structure saves builders significant capital by eliminating a second set of origination fees, appraisal costs, and closing delays that typically occur right when the project is most vulnerable to market shifts.

This unified financing approach is designed specifically for small to mid-sized suburban developers and experienced spec home builders who are scaling their operations. If you are moving from building one or two single-family infill homes to developing a small subdivision of five to thirty units, the capital stack becomes infinitely more complex. Institutional banks often ignore these mid-sized projects because they are too small for their commercial development desks but too complex for their standard residential construction departments. A combined private money development loan bridges this gap. It allows regional operators to take down a medium-sized parcel, subdivide it, run the necessary infrastructure, and build the vertical units without having to constantly hunt for recapitalization midway through the project timeline.

Historically, builders tackled these projects in two distinct phases financed by two different lenders. First, they would secure a horizontal development loan. This short-term debt was strictly used to clear the land, grade the topography, install retention ponds, pave the streets, and run water, sewer, and power lines to each individual lot. Once the lots were fully finished and certified by the municipality, the developer would have to stop operations, order new appraisals, pay off the horizontal lender, and close on a new vertical construction loan to actually build the houses. This disjointed process introduces massive friction. If the market shifts or interest rates spike while you are laying pipe, the vertical lender might pull their term sheet, leaving you stranded with finished lots but no capital to build the income-producing structures.

When you figure out how to finance horizontal and vertical construction in one loan, you eliminate that transition risk entirely. The mechanics of a unified development loan revolve around two primary metrics: Loan to Cost and Loan to Value. Private lenders typically finance between 70 to 75 percent of the total project cost. Total cost includes the land acquisition price, soft costs like architectural plans and permits, the horizontal site work budget, and the vertical construction budget. The remaining 25 to 30 percent is the developer's required cash equity injection. Concurrently, the lender will underwrite the deal to a maximum Loan to Value threshold, usually capped at 65 to 70 percent of the aggregate completed value of the entire subdivision. You must satisfy both constraints to get the loan sized correctly at the underwriting stage.

The cost of capital for a combined facility reflects the extended duration and dual-phase risk of the project. Developers should expect interest rates in the 10 to 12 percent range, with origination fees spanning two to three points depending on leverage and builder experience. While this private money pricing is higher than a highly subsidized local bank loan, the true savings materialize in the velocity of the capital. Because you only close once, you avoid paying a second massive origination fee on the vertical phase. You also avoid the holding costs associated with sitting on dead dirt for three months while waiting for a bank committee to approve the second phase of financing. Time is the ultimate currency in suburban development, and a unified loan allows your heavy machinery to transition seamlessly from grading roads to pouring concrete foundations.

The draw schedule on a combined horizontal and vertical construction loan is highly structured and heavily monitored by the lender. At closing, the lender funds the initial advance, which covers a portion of the land acquisition and early soft costs. From there, the developer funds the initial site work out of pocket, requests an inspection, and receives reimbursement from the horizontal allocation of the loan budget. This phase covers the mass grading, wet utilities, dry utilities, and paving. Once the lots achieve finished status, the draw schedule automatically rolls over into the vertical phase without requiring a new closing. The developer begins pulling permits for the individual structures, pouring slabs, and drawing against the vertical construction budget on a standard monthly schedule for framing, mechanical rough-ins, and final finishes.

Because these projects can take anywhere from 18 to 24 months from ground-break to final certificate of occupancy, managing cash flow is an absolute requirement for survival. A unified development loan typically includes an interest reserve built directly into the total loan amount. Instead of writing a massive monthly interest check out of your operating account while the property is generating zero revenue, the lender deducts the monthly interest payment from this pre-funded reserve. The reserve is capitalized based on the outstanding drawn balance, meaning you only pay interest on the capital you have actually deployed into the dirt. This structure protects the developer's liquidity, ensuring that cash on hand is reserved strictly for construction overages, material cost spikes, or unforeseen site conditions.

Knowing when to deploy this specific loan product is just as important as knowing how it works. You should use a combined horizontal and vertical loan when you have a piece of land that is already fully entitled or extremely close to final plat approval. Private money lenders require a clear, unobstructed path to construction. If the municipality has already approved the zoning, signed off on the density, and agreed to the utility plan, you are ready to close on a unified loan. This product is also highly effective for infill townhome projects where the horizontal work is relatively light, perhaps just extending existing city sewers and pouring a shared driveway, followed immediately by vertical framing. In these scenarios, separating the financing into two loans would be a massive waste of resources and time.

Conversely, you should never attempt to use a combined horizontal and vertical construction loan to purchase raw, unentitled land. Entitlement is the legal process of getting the city to agree to what you want to build, and it is notoriously unpredictable. Rezoning a parcel from agricultural use to medium-density residential can take anywhere from twelve months to three years depending on local politics and neighborhood pushback. Private money construction loans are duration-sensitive, typically structured for 18 to 24 months. If you close on a high-leverage development loan and spend the first fourteen months fighting the city council over zoning density, your interest reserve will drain entirely before you ever move a single pile of dirt. For raw land, you must use lower-leverage bridge debt, patient equity, or seller financing until the entitlements are locked in.

Even with fully entitled land and a unified loan, developers face significant operational pitfalls during execution. The most common and expensive mistake is miscalculating the horizontal construction budget. Vertical construction is relatively predictable. An experienced builder knows exactly what a framing package, a roofing system, or a plumbing rough-in will cost per square foot in their specific market. Horizontal construction is entirely different because the major financial risks are buried underground. Finding unexpected bedrock that requires dynamite blasting, hitting an unmarked legacy pipeline, or discovering that the city requires you to upgrade a sewer main three blocks away can instantly blow up your site work budget. When your horizontal budget balloons, it eats into the total project equity, potentially causing the lender to pause vertical draws until the developer injects more cash to rebalance the overall loan to cost ratio.

Another major pitfall is failing to plan the phasing and exit strategy correctly before you sign the initial term sheet. If you are building a 20-unit suburban townhome development, you likely will not finish all 20 units on the exact same day. A well-structured unified loan must include partial release clauses. A partial release allows the developer to finish the first block of five townhomes, sell them or refinance them, and use a predetermined portion of those proceeds to pay down the principal balance of the main loan. The lender then releases the lien on those specific five lots. Without partial release clauses negotiated upfront, you would be forced to hold completed, idle inventory until the entire 20-unit subdivision was finished and the master loan was paid off entirely. This severely damages your internal rate of return and creates a massive liquidity bottleneck.

The ultimate success of learning how to finance horizontal and vertical construction in one loan comes down to executing your planned takeout strategy. For traditional spec home subdivisions, the exit strategy is straightforward retail sales to homeowners. As homes receive their certificates of occupancy, they are listed on the open market, and the buyer mortgages pay off the development facility lot by lot. However, a growing number of suburban developers are building subdivisions exclusively to hold as rental portfolios, commonly known as build-to-rent communities. If your goal is to hold the 30 units as an investor, your vertical construction must be underwritten with the final Debt Service Coverage Ratio in mind. You need to ensure that the aggregate market rent of the finished subdivision will comfortably cover the monthly mortgage payments on the permanent 30-year commercial loan that will ultimately replace your construction facility.

Transitioning from the combined construction loan to permanent rental financing requires careful coordination, but it is highly lucrative when executed correctly. Because the unified loan allowed you to move fast and build efficiently, you should reach the stabilization phase quicker than competitors who relied on fragmented bank financing. Once the horizontal infrastructure is proven and the vertical structures are leased up, the asset's risk profile drops dramatically. Institutional lenders view stabilized new-build subdivisions as premium assets because capital expenditure projections are virtually zero for the first five years. This allows you to command highly favorable terms on the final long-term DSCR loan, successfully completing the development lifecycle from raw dirt to a stabilized, cash-flowing yield.

Successfully executing a mid-scale subdivision requires capital that moves as fast as your heavy equipment operators do. Fragmenting your debt into separate land, site work, and building loans only introduces unnecessary friction, double fees, and timeline risks that compound into massive profit losses. By securing a unified facility, you align your entire capital stack with your actual construction schedule, ensuring that your project stays fully funded from the first day of mass grading to the final coat of interior paint. If you have an entitled parcel and are ready to bypass the delays of traditional bank phasing, Phoenix Capital's Suburb Development program provides the high-leverage, single-close capital required to take your project from dirt to completion. Head to /funding to review our exact leverage limits, submit your subdivision numbers, and structure your combined development loan today.

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