The Quick Read: A home equity line can fund the equity stake on a construction loan, but the construction lender decides whether that borrowed money counts, and the right provider depends on your collateral, title, and leverage rather than on any ranked list. Lendmire is a mortgage broker, not a lender, and it matches each file to the wholesale HELOC lender whose program fits.
- The line is borrowed money. Construction lenders add its payment to your debts.
- On an investment property, the network ceiling is 70% combined loan-to-value (CLTV), with a 700 minimum credit score and a $500,000 maximum line.
- LLC-titled rentals are not eligible. Title must sit with you or a revocable living trust.
- The line should be closed and funded before you present it as your equity stake.
- A DSCR cash-out on an existing rental is the main alternative when a HELOC does not fit.
Everything below walks through the mechanics in order, then the edge cases.
How large a line the equity supports.
An equity line is sized by combined loan-to-value, occupancy, and credit — not by rental coverage. Switch the occupancy or the credit band and the ceiling moves with it.
Investment-property lines require a 700 minimum credit score; second-home lines start at a 640 minimum and primary-residence lines at 600, and the combined-LTV ceiling steps down as the credit band drops on primary-residence and second-home lines and holds on investment-property lines; the line cap steps down on primary-residence lines and holds at every tier on investment-property and second-home lines.
A debt-to-income ratio above 45% requires 680+ credit. Profiles under 640 are limited to single-family homes. At least 75% of the approved line is drawn at closing. Ceilings, floors, and caps update from Lendmire’s centralized guideline source.
Line estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. The rate is an editable assumption; equity-line pricing is variable through both the draw and repayment periods and never converts to fixed. Occupancy and credit drive the ceiling together: an investment property tops out at 70% combined LTV (minimum credit 700, line cap $500,000); a second home tops out at 90% combined LTV (minimum credit 640, line cap $500,000), with the ceiling stepping down as the credit band drops (the cap holds at every tier); a primary residence tops out at 90% combined LTV (minimum credit 600), and its $750,000 maximum line is available only at 75% combined LTV or below with a 700-or-better credit profile (720 on the longer-runway program) and a full appraisal. Lines above $500,000 require a full appraisal. Credit, debt-to-income, property type, and full underwriting review all affect the final line.
Why “Best Provider” Is the Wrong Question
No single provider wins for every borrower. NerdWallet notes that not every lender offers a HELOC on an investment property, that requirements are strict, and that lenders see higher default risk on rentals. It also says multiple appraisals may be required.
So the useful ranking is not by name. It is by who will write a line on your collateral type, your title, and your leverage. Because not every lender offers these lines, a broker who can shop several lenders at once has a real advantage.
That is the role Lendmire plays. The brokerage works with a network of wholesale HELOC lenders and matches your scenario to the program that fits. The best program for your situation depends on the property, the equity, your credit profile, and how much you need.
Key Terms Defined
HELOC: A home equity line of credit, a revolving line secured by your property that you can draw on repeatedly up to a limit.
CLTV (combined loan-to-value): Your first mortgage plus the new line, divided by the property’s value.
Equity stake: The share of project cost a construction lender wants you to put in yourself, before it lends the rest.
Draw period: The stretch when you can borrow from the line, usually with interest-only payments. Repayment follows.
DSCR: Debt service coverage ratio, which compares a property’s rent to its monthly payment of principal, interest, taxes, insurance, and any HOA dues.
What a HELOC Actually Is
The CFPB describes a HELOC as an open-end line that lets you borrow against home equity again and again. It has a draw period, then a repayment period. If you fall behind, you could lose the property that secures it.
That last point matters here. Using a line to fund a build puts the collateral property at risk, whether that is your home or a rental.
How Underwriting Treats the Line, Step by Step
Step 1: The construction lender sets your stake. It sizes your equity as a share of project cost or completed value. The exact requirement varies by lender, so ask for it to be spelled out in your pre-approval.
Step 2: Land equity counts first. If you own the land free and clear, its value credits toward the stake. If the land carries a loan, the lender subtracts the balance. The HELOC then covers the gap between land equity and the required stake.
Step 3: The HELOC lender qualifies you. It looks at CLTV, credit, debt-to-income, title, occupancy, and property type. On our network, DTI tops out at 50%, and the payment is measured on the interest-only amount at the maximum draw. A HELOC is underwritten on you, not on the rent. That is the sharpest contrast with a DSCR loan.
Step 4: Run the equity math. Maximum line equals value times the CLTV cap, minus your first-lien balance. A lower appraisal cuts the line by more than the value dropped, because the first mortgage counts in full. Say a rental’s value falls 10%. The room under a 70% cap shrinks by more than 10% of the room you started with.
Step 5: Close and fund. On our network’s investment lines, at least 75% of the line is drawn at closing. Funds are not available the instant you sign. The CFPB’s HELOC brochure describes a rescission window that applies to consumer lines secured by a home. Plan for that gap before your construction closing date.
Step 6: The construction lender documents the source. Expect to hand over the HELOC agreement, statements showing the draw, the contract, and the builder’s estimate. The line’s payment goes into your debt ratios.
Step 7: Build, draw, convert. The builder is paid in stages. Your HELOC accrues interest the whole time, on top of the construction loan’s interest-only draws. At completion, the construction loan pays off or converts. Many rental investors then refinance into a DSCR loan, which qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. The HELOC stays a personal obligation.
Which Property Secures the Line
| Collateral | Typical lender view | Network ceiling |
|---|---|---|
| Primary residence | Most favorable | Up to 90% CLTV, only at 720+ credit |
| Second home | Favorable | Up to 90% CLTV, only at 720+ credit |
| Existing rental | Most cautious | 70% CLTV |
The 90% figure exists only at a 720-or-better credit profile, and it never applies to a rental. On an investment property, 720 and 700 both reach 70% CLTV, so a higher score buys eligibility rather than extra leverage. Seven hundred is a hard floor.
A market survey from White Coat Investor lists typical investor-HELOC expectations of 720 credit, six months of reserves, and 80% LTV. Those are market-wide figures. The network figure for an investment line is 70% CLTV with a 700 minimum. The exact numbers vary by lender and program and follow a full review of property, leverage, and credit.
Using your primary home puts it at risk to fund a rental build. That is a real tradeoff, and the better collateral for the lender is not always the safer one for you.
Structures and Variations
Across the wholesale network, two draw structures exist on primary residences and second homes. One runs a 3-year interest-only draw with a 17-year repayment. The other runs a 5-year draw with a 25-year repayment. Investment lines use the 5-year draw and 25-year repayment structure only.
Other features that apply across the network:
- Lines run $25,000 to $500,000 on investment property. Lines above $500,000 are primary-residence only.
- Pricing floats during both draw and repayment and never converts to fixed. The CFPB notes HELOCs usually carry adjustable rates and varying payments, which matters when you size a down payment.
- A standalone line can sit in first or second lien position.
- Because investment lines cap at $500,000, they are generally valued by automated valuation, and often close without a traditional appraisal. A higher CLTV may require a secondary valuation, and you can request a full appraisal.
- Eligible properties include single-family, 2-4 units, PUDs, townhomes, and condos, including non-warrantable condos. Manufactured homes, co-ops, condotels, log homes, and agricultural or mixed-use zoning are not offered.
Where the General Rule Breaks
LLC title. Lines are available only to individuals and revocable living trusts. LLCs, corporations, partnerships, and irrevocable or land trusts cannot hold title. If your rental is deeded to an LLC, you need a vesting change or a DSCR cash-out instead, subject to program terms.
Construction-only loans. A construction-to-permanent loan converts on its own. A construction-only loan must be paid off or refinanced, and a HELOC does not pay it off unless it sits in first position and covers the balance.
Own-cash requirements. Some construction lenders want part of the stake from your own cash or land equity, not borrowed funds. This varies by lender, so ask before you apply.
Rental restrictions. The CFPB brochure cautions that some line terms prohibit renting out your home. If the collateral may become a rental, check the occupancy covenant.
Line reductions. The same brochure says a lender can reduce a line if the home’s value drops. A line you planned as a down payment could shrink mid-project.
Portfolio size. A borrower is limited to three lines, and owning more than 15 financed properties is not eligible. DSCR loans judge each property on its own rent, so a large portfolio is less of a barrier there.
Availability. HELOC lines are arranged in Lendmire’s 16 full-service states: AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA, and WA. That is narrower than the DSCR footprint. Some states add rules, such as Texas limits on primary residences, so confirm your state early.
How Combined Leverage Works
Say you own land and a rental. The land is unencumbered. The rental has a first mortgage, and the HELOC would sit behind it. The lender stacks the first mortgage and the new line, then divides by the rental’s value. If that comes out above 70%, the line shrinks until it fits.
Then the construction lender runs its own math. It looks at your stake from land equity plus HELOC cash, and at your total monthly obligations, including the HELOC payment. A smaller line or more land equity fixes a combined ratio that breaks the limit.
Timeline: Land, Line, Approval, Draws, Payoff
1. Confirm land equity and any liens on it.
2. Ask the construction lender how it treats borrowed funds, in writing.
3. Apply for the HELOC and close it.
4. Fund the line and season the draw in your account.
5. Submit the HELOC documents with the construction application.
6. Build in stages while carrying both payments.
7. At completion, pay off or convert the construction loan, then plan the exit.
The sequence is the point. A line that closes after construction approval can leave you short at the closing table.
HELOC or DSCR Cash-Out: What the Decision Looks Like
A HELOC suits an investor with strong personal credit and equity, a modest cash need, and a rental held in their own name. A DSCR cash-out refinance on an existing rental suits an investor whose personal income is thin but whose rental covers its payment.
On our network, cash-out refinances top out around 75% LTV, with about six months of seasoning as a common expectation. Coverage of 1.00 is where select programs start, and stronger ratios open better leverage and pricing. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. NerdWallet also lists a cash-out refinance as another route to the equity. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.
Clearing 1.00 does not mean the property produces positive cash flow. Repairs, vacancy, management, and utilities sit outside the calculation. For the bigger picture, see the complete DSCR loans guide.
How to Choose a Provider: A Scorecard
Ask each provider these questions:
- Will you write a line on an investment property in my name or trust?
- What is the CLTV ceiling for my occupancy and credit?
- Is the line first or second lien, and does that fit my existing mortgage?
- What draw and repayment structure applies?
- How is the property valued, and could a second valuation be required?
- Does the construction lender accept this line as equity?
A broker can run these questions across several wholesale lenders at once, which a single bank branch cannot do.
Common Reasons for Delay or Denial
- Rental titled in an LLC.
- Credit below the investment floor of 700.
- Combined ratios that break the construction lender’s limits once the HELOC payment is added.
- Line closing after the construction application, so the funds are not yet seasoned.
- Property types that fall outside the program, such as manufactured homes or log homes.
- A value drop that cuts available CLTV.
Frequently Asked Questions
Can a HELOC cover the down payment on a construction loan?
Often, but the construction lender decides. It treats the line as borrowed money, adds its payment to your debts, and may limit how much of the stake can be borrowed. Ask for its policy in writing before you apply.
What is the maximum CLTV on an investment property line?
On the wholesale network, 70% CLTV, with a 700 minimum credit score and a $500,000 maximum line. A 720 score reaches the same 70%, so higher credit adds eligibility, not leverage. Everything is subject to lender guidelines.
Can my LLC-owned rental secure the line?
Not directly. Title must be held by you individually or in a revocable living trust. An LLC-owned rental needs a vesting change, or a DSCR cash-out may fit better, subject to program terms.
Does the line need to be open before I apply for construction financing?
In practice, yes. Construction lenders want to see the line closed and funded, with statements showing the draw, before they accept the money as your stake.
Do I need an appraisal?
Usually not on an investment line. Lines at or below $500,000 ordinarily use automated valuation, though a higher CLTV may require a secondary valuation, and you can request a full appraisal.
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. Call 828-256-2183 or request a quote. Programs change, every file is underwritten individually, and nothing here is a commitment to lend.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage broker. Home equity lines of credit — on a primary residence, a second home or an investment property — are arranged through wholesale lenders in Lendmire’s 16 full-service states, and every line is underwritten by the lender under its program guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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Informational only. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
References
1. NerdWallet – HELOC on investment property
2. CFPB
4. White Coat Investor – HELOC on investment property
This article is part of Lendmire’s investment property HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Top Investment Property HELOC Providers on a Rental Without Selling or Refinancing It · Top Investment Property HELOC Providers for a Portfolio LLC Investor · Top DSCR HELOC Providers to Cover a Down Payment Shortfall on an Investment Property
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.