How Much Can You Borrow on an Investment Property HELOC on a New Build After Completion?

The Quick Read: Usually less than owners expect. The limit is the finished property’s appraised value times a 70% combined loan-to-value (CLTV) ceiling on an investment property, minus every lien already on it, and the $500,000 line cap and your personal debt-to-income ratio can trim it further. A new build changes the math in one way: lenders value the completed, appraised home, not your construction cost, the builder’s contract price, or a projected value.

• On Lendmire’s wholesale network, an investment-property line tops out at 70% CLTV and $500,000, with a $25,000 minimum.
• The whole credit limit counts toward the CLTV test, whether or not you draw it.
• A construction loan or builder mortgage still on the property uses up CLTV room first.
• Qualification rests on your credit, income, and equity, not on the rent the property earns.
• Title must sit with you personally or in a revocable living trust, so an LLC-owned build needs a different product.

How Is the Limit Calculated?

The formula is the appraised value times the maximum CLTV, minus existing liens. The usable line is then the smallest of three numbers: the CLTV room, the dollar cap, and what your debt-to-income ratio allows.

On an investment property, Lendmire’s network applies a 70% CLTV ceiling and a $500,000 maximum line. Both credit tiers on the investment table, 720 and above and 700 and above, reach the same 70%. A higher score buys eligibility, not extra leverage.

That ceiling is lower than what the broader market sometimes advertises. NerdWallet reports that investment-property lines usually ask for at least 20% equity, against 15% to 20% on a primary home. It also notes that fewer lenders offer them and that borrowers can’t draw as much as on a primary residence. On Lendmire’s network, the figure that applies is 70% CLTV, which means keeping at least 30% equity.

Two details trip people up. First, the lender counts the entire line in the CLTV test, so a line you never touch still consumes room. Second, a free-and-clear property still hits the ceiling. Owning the home outright does not unlock 100% of its value.

What Changes When the Property Is a New Build?

A new build changes the starting value, the lien picture, and the timing. Everything else in the formula stays the same.

Value comes from the appraisal. The line is sized on what the finished home is worth, not what you paid to build it. If the appraisal lands above your cost, you have more room. If it lands below, you have less. Builder incentives and upgrade packages can push a contract price above what comparable sales support. When that happens, the appraised number wins.

Valuation is usually automated. An investment line caps at $500,000, and full appraisals begin only above $500,000. These files therefore sit structurally in the automated-valuation lane and commonly close with no traditional appraisal. A higher CLTV may call for a secondary valuation. You can also request a full appraisal. Some lenders elsewhere in the market want multiple appraisals on investment lines, as NerdWallet notes, so the process varies by lender.

The build must be finished. Lenders value completed property. A home still under construction is a poor fit for a line of credit. Construction-to-permanent loans are the usual tool during the build. The line makes sense once the home is complete and the property can be valued, typically with an occupancy certificate in hand. How long to wait after completion depends on the lender and the file, so ask before you assume.

Liens come first. A construction loan that has not been converted, a construction-to-perm balance, or a purchase mortgage all count against the 70%. If you paid cash for the build, the new line may be the only lien. It can sit in first or second position.

Vacancy is not the test. The line is underwritten on your credit, income, and equity, not on the rent the property earns. A new build that has not been leased yet is judged on the borrower, though the lender reviews each property individually.

Three Illustrative Scenarios, in Percentages

These are modeled assumptions, not quotes. They show how the pieces fit across three cases.

Scenario one: a builder mortgage remains. A completed rental appraises at a certain value, and the mortgage balance equals 62% of that value. The 70% ceiling leaves 8 points of the property’s value as CLTV room. Even if you want more, the line cannot exceed that room. The $500,000 cap is irrelevant here because CLTV binds first.

Scenario two: built with cash. The property has no mortgage, so the full 70% is available as room. Whether the line reaches $500,000 depends on appraised value. On a higher-value property, the dollar cap binds before CLTV does. On a modest one, CLTV does.

Scenario three: little equity. A new build bought with a high-leverage first mortgage, or with its down payment funded by borrowing, may already sit at or above 70%. Then there is no room at all. Funding a purchase or down payment with a HELOC also leaves you with no equity cushion if values soften, a risk investors describe in a BiggerPockets discussion on using a HELOC for a rental down payment.

In all three cases, equity comes from appraised value minus debt. Being new does not make a build full of equity.

What Else Caps the Line?

Credit, debt-to-income, title, and the draw structure all matter, and any one of them can bind before the equity does.

• Credit. Investment lines require a 700 minimum, with no tier beneath it.
• Debt-to-income. The maximum is 50%, and the payment is calculated on the interest-only amount at your maximum draw. A large line can therefore shrink your usable DTI room even if you plan to draw less.
• Draw structure. Investment lines run a 5-year interest-only draw followed by a 25-year fully amortizing repayment. At least 75% of the line is drawn at closing. Pricing floats during both periods and never converts to fixed. Because most of the line is drawn up front, it makes little sense to open a larger line than you need as a buffer.
• Line size. Investment lines run from $25,000 to $500,000. Larger lines are reserved for primary residences.
• Property type. Single-family, 2-4 unit, PUD, townhome, and condominium properties are eligible. Manufactured homes, co-ops, condotels, log homes, and commercial or mixed-use properties are not offered.
• Exposure. A borrower is limited to three lines, and a borrower who owns more than 15 financed properties is not eligible.
• Availability. HELOC availability is limited to Lendmire’s 16 full-service states, which is narrower than its DSCR footprint of 41 markets, including Washington, D.C.

Title is the sharpest limit for investors who hold property in entities. The borrower must hold title individually or in a revocable living trust. LLCs, corporations, partnerships, and irrevocable or land trusts cannot. BiggerPockets discussions show the same difficulty across the wider market. Some lenders also decline paid-off properties altogether, as a BiggerPockets thread on rental-property HELOCs illustrates. A DSCR cash-out refinance is the usual alternative for an entity-held build, subject to lender program eligibility.

Costs also differ. Bankrate notes that investment-property lines generally carry higher costs than primary-home lines and that lenders may weigh the property’s financials alongside the borrower’s. Lendmire’s network underwrites the borrower, not the rent.

Key Terms Defined

CLTV (combined loan-to-value): All loans secured by the property, including the full HELOC limit, divided by its appraised value.

Certificate of occupancy: The local sign-off that a finished building is fit to occupy, which lenders typically expect before valuing a new build.

Lien position: Where a loan ranks for repayment; an investment line can be a first or a second lien.

Automated valuation: A computer-generated value estimate used instead of a full appraisal, common on lines at or below $500,000.

Vesting: How title is held, such as personally, in a revocable living trust, or in an LLC.

Draw period: The stretch, five years on investment lines, when you can borrow and pay interest only before repayment begins.

HELOC or DSCR Cash-Out Refinance?

A HELOC is judged on you, and a DSCR cash-out is judged on the property. The right choice depends on whether you want to keep your current first mortgage and how the property is titled.

On a cash-out refinance, DSCR leverage tops out around 75% on standard rentals and 70% on short-term-rental collateral. About 6 months of seasoning is the common expectation, and reserves commonly run around 6 months of PITIA. Programs qualify primarily on property-level rental income covering the payment, subject to lender guidelines. Clearing a 1.00 coverage ratio is where select programs start, but it does not mean the property cash-flows after repairs, vacancy, and management.

If a stable first mortgage is worth keeping and your credit and DTI are strong, a line can make sense for a modest draw. If the build sits in an LLC, if your personal DTI is stretched, or if you want to pull more than 70% CLTV allows, a DSCR cash-out is the more practical path. The full picture is in the complete DSCR loans guide.

Next Steps

Start with the appraised value of the finished home, subtract every lien, and apply the 70% ceiling. Then check your credit, DTI, and title. If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals. Programs change, every file is reviewed individually, and nothing here is a commitment to lend.

About Lendmire

Lendmire — NMLS# 2371349 — is a mortgage broker that arranges home equity lines of credit in its 16 full-service states through wholesale lenders, on primary residences, second homes and investment properties. Every line is subject to the lender’s guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. NerdWallet

2. BiggerPockets – Using a HELOC for down payment

3. BiggerPockets discussions

4. BiggerPockets – HELOC against a rental property

5. Bankrate – HELOC on investment property