The Quick Read: A HELOC does not finance a build directly; it turns equity in a property you already own into cash that can pay for construction, so the banks and lenders that offer one care about the existing property’s value, your credit, and your total debt, not the plans for the new structure. Whether a given lender allows construction use varies by institution. The program that fits depends on occupancy, credit profile, and how much combined leverage you need.
- The line is secured by the property you already own, never by the project being built.
- The lender values the finished, existing property as it stands today, so thin equity usually points to a construction loan instead.
- Lines on this wholesale network run $25,000 to $750,000, with a lower ceiling on investment properties.
- Lendmire does not lend; it matches the file to a wholesale program, so the right fit depends on your situation.
- A DSCR refinance on the finished rental is a common way to repay the line.
What a HELOC Actually Does in a Build
A home equity line of credit lends against value you already have. Think of it as cash drawn from one property to pay for work on another property, or on the same lot. The structure being built does not secure the line.
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.
That is the whole structural difference from a construction loan. A construction lender looks at the completed project and sizes the loan to finished value. A HELOC lender looks at the existing property and sizes the line to its equity. A structure that is not built yet usually adds nothing to the appraised number.
So the question is not which banks “offer” a construction HELOC as a product. Almost no one sells one by that name. The real question is which lenders allow construction as a use of funds, and whether your equity covers the build.
Policy splits by institution. Some lenders treat ground-up or structural work as outside what a home equity line is meant to fund. Others place no restriction on how the money is used once the line closes. Investor commentary on BiggerPockets reports that typically there are no restrictions on how you spend the cash after closing. That is borrower experience, not a rule. Confirm the lender’s own language before you build a budget around it.
Lendmire is a mortgage broker, not a lender. It places equity lines through a network of wholesale lenders. Because it does not name or rank banks, this article explains what those lenders look for and how to screen for fit.
Key Terms Defined
Combined loan-to-value (CLTV): the first mortgage balance plus the new line, divided by the property’s appraised value.
Draw period: the stretch when you can borrow against the line, usually with interest-only payments.
Repayment period: the stretch after draws end, when the balance amortizes and payments step up.
Lien position: whether the line sits behind an existing mortgage (second lien) or stands alone as the first lien.
DTI: your monthly debt payments divided by your monthly income.
DSCR: the ratio of a rental’s income to its full monthly housing obligation, used on investor loans.
How Underwriting Treats a Construction-Purpose Line
The deal works through the same steps whether the money pays a builder or a roofer. Here they are in order.
1. Equity test. Available equity is the property’s value minus every lien on it. The lender caps the combined balance at a percentage of value. What is left under that cap is the most you can borrow.
2. Valuation. On this network, lines at or below $500,000 ordinarily run an automated valuation with no traditional appraisal. A higher CLTV may call for a second valuation. Every line above $500,000 requires a full appraisal, and a borrower can request one at any size. Either way, the value is the existing property. Your build plans do not raise it.
3. Credit. The program floor is 600. Floors rise by occupancy, as the table below shows. The score model keys to the primary wage earner, and the report can be no more than 90 days old at closing.
4. DTI. The maximum is 50%, and it drops to 45% for credit profiles from 600 to 679. A ratio above 45% requires at least a 680 score. The lender reviews your file on the interest-only payment calculated on the maximum draw, not on what you plan to use.
5. Draw structure. A CFPB explainer on HELOCs notes that you can generally borrow up to the limit at any point in the draw period, and that the period could run 10 years, for example. On this network, the structure is more specific, and it matters for builders. At least 75% of the line is drawn at closing. After that, subsequent draws carry a $1,000 minimum on the longer-runway program (Texas is $4,000).
6. Repayment. When draws end, payments often step up sharply. The same CFPB page warns that in some cases the whole balance can come due when repayment begins.
7. Sale. Most lines require full payoff if you sell the collateral property. That matters for any build-then-sell plan.
The 75%-at-closing rule changes how you picture the product. Many borrowers imagine pulling funds as each contractor invoice arrives. On these programs, most of the line is funded on day one, and interest accrues on that balance. Pricing floats during both the draw and repayment periods and never converts to fixed. For a build that spends money over many months, you carry a large balance before most invoices arrive.
What the Network’s Programs Allow
Lendmire places these lines through two wholesale programs, which this article calls the higher-leverage program and the longer-runway program. Ceilings depend on the occupancy of the collateral property. No single number describes them all.
| Collateral occupancy | Top CLTV | Max line | Min credit |
|---|---|---|---|
| Primary residence | 90% at 720+ only | $500,000 at 90% CLTV; $750,000 at 75% CLTV, 700+ (720 on the longer-runway program) | 600 |
| Second home | 90% at 720+ only | $500,000 | 640 |
| Investment property | 70% | $500,000 | 700 |
The table shows the best case for each occupancy. The 90% tier exists only for borrowers at 720 or better, and on a primary residence it applies to lines up to $500,000. Below that tier, a primary residence with a 700 score tops out at 85% up to $500,000, and the ceiling is also 85% at 660 to 680. At 640 it is 80%, at 620 it is 70% (up to $400,000), and at 600 it is 60%. The $750,000 line is a separate lane: it is primary-residence only, caps at 75% CLTV, and needs a 700 score or better (720 on the longer-runway program). It also requires a full appraisal.
Second homes step down faster: 85% at 700 and 680, 80% at 660, and 75% at 640. Investment properties allow 70% CLTV at 700 and above, and nothing higher.
Every figure here is subject to lender guidelines and a full file review. Market-wide statistics for equity lines may differ, but the tiers above are the ones that govern on this network.
Structure comes in two draw options on primary residences and second homes: a 3-year interest-only draw followed by a 17-year amortizing repayment, or a 5-year draw followed by a 25-year repayment. Investment lines use the 5-year and 25-year structure only. Tennessee shortens both. Each figure applies only within its own program’s terms.
The property types are narrow. Single-family, 2-4 units, PUDs, townhomes, and condominiums, including non-warrantable condos, are eligible. Modular homes are eligible on the longer-runway program only. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural zoning are not offered. The network offers these lines in 16 full-service states, which is narrower than Lendmire’s 41-market DSCR footprint of 40 states plus Washington, D.C.
How to Screen a Lender Before You Apply
Skip the ranked lists. The lender that fits depends on your property type, credit profile, leverage need, and documentation. A broker that shops several wholesale lenders can match the scenario to a program. If you go direct, these questions sort the field.
- Does the written line agreement restrict use of funds? Ground-up construction is where the restriction usually appears.
- Which institutions fit which situations? Regional banks, community banks, and credit unions often have more room on property type and local knowledge. No type of institution is guaranteed to allow construction use, so ask each one directly.
- What valuation method will they use? An automated valuation versus a full appraisal can change your usable equity.
- How much funds at closing? If most of the line is drawn up front, model the carry from the first month.
- Does the lender allow your occupancy type? Investment-property lines come with a smaller lender pool and tighter terms than primary-residence lines.
- Who can hold title? Individuals and revocable living trusts only on this network.
Where the General Rule Breaks
No equity, or a recent purchase. If your equity is thin, a HELOC is off the table, and the standard path is a construction loan sized to finished value. Common structures include construction-to-permanent loans and owner-builder loans.
A HELOC mid-build. Lenders generally do not open a line on a property still under construction. The line has to exist on a finished, equity-bearing property before the project starts.
Land first, build later. A borrower can buy the lot with a line and apply for a separate construction loan when ready to build. That is a sequencing plan, not a single product.
A construction loan plus a HELOC. A line on an existing home sometimes covers a shortfall, such as a low appraisal on the build. Lenders still count the new payment in DTI, so the combined debt has to fit.
A line on a rental. It is possible, but the lender pool is smaller and the qualification is strict. On this network, an investment-property line needs a 700 score and caps at 70% CLTV and $500,000.
Texas primary residences. Texas is an exception to the general tiers, including the 90% CLTV ceiling available at 720+ elsewhere. A Texas primary is a homestead, capped at 80% combined loan-to-value. It also carries a waiting period, a one-lien-at-a-time rule, and seasoning requirements. Texas second homes and investment properties are non-homestead transactions that follow the standard tables.
Entity-held property. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title on these lines. A property already deeded to an LLC needs a vesting change, or a DSCR cash-out instead.
HELOC vs. Construction Loan vs. DSCR Refinance
| Factor | HELOC | Construction loan | DSCR refinance |
|---|---|---|---|
| Collateral | Existing property | The project | Finished rental |
| Valued on | Today’s value | Completed value | Rent and value |
| Funds as | Mostly at closing | In stages | Lump sum |
| Best for | Ample equity | Thin equity | Stabilized rental |
The three products do different jobs. A HELOC converts equity you have already built. A construction loan creates equity in a project that does not exist. A DSCR loan finances a rental that is finished and leased. Many investors use them in sequence.
The Investor Decision in Practice
Picture an investor with a paid-down primary residence and a plan to build one rental on land she owns. The line on her home covers a large share of costs. The structure works on paper. The key question is exit: how does she repay a floating-price line that sits on her own home?
That is where DSCR financing comes in. It does not fund construction. It finances a finished, stabilized rental, and the usual exit is a cash-out or rate-and-term refinance that pays off the line. Most standard programs have a 1.00 coverage floor, though some programs want stronger ratios for better pricing and leverage. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
On a cash-out of a standard long-term rental, leverage tops out around 75% LTV across most of the network, and roughly six months of ownership seasoning is the common expectation. Credit floors, reserve requirements, and property eligibility still apply. Reserves commonly run about six months of PITIA, and they vary by lender, leverage, and loan size. The complete DSCR loans guide walks through the full qualification picture.
One caution on that coverage ratio: clearing 1.00 is not the same as positive cash flow. DSCR compares rent to the full monthly housing obligation. Repairs, vacancy, management, and capex sit outside the calculation.
A BiggerPockets thread on a build-to-rent strategy describes one investor using lines to fund builds and then refinancing out on the back end. That is one person’s report. A real exit plan decides whether it works, because without one, you are risking the roof over your own head for a rental.
Lendmire’s piece on a HELOC after converting a home to a rental covers what happens when the collateral changes occupancy.
Risks to Size Before You Draw
- Your home is the collateral. Missed payments on a line secured by your residence put the residence at risk.
- Variable pricing. The line floats through both periods. It never converts to fixed on these programs.
- The payment step-up. Interest-only payments end when the repayment period starts, and the new amortizing payment is higher.
- Overruns. If the build costs more than the line, you need a second source. A line sized to the budget with no cushion leaves you stuck mid-project.
- Exposure limits. A borrower is limited to three lines on this network, and combined exposure caps at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program. A borrower with more than 15 financed properties is not eligible.
- Derogatory credit. A bankruptcy needs four years of seasoning from discharge or dismissal. Foreclosure history splits by program: one seasons a foreclosure at seven years and a short sale or deed-in-lieu at four, and the other declines the history regardless of age.
Decision Checklist
1. Do you own a property with enough equity after the CLTV cap?
2. Does the occupancy of that property fit the table above?
3. Is your credit profile at the tier you need, and is your DTI under the limit with the new payment counted?
4. Does the lender’s written agreement allow construction use?
5. Can you carry most of the balance from closing?
6. Do you have a funded backup for overruns?
7. Is there a defined exit, such as a DSCR refinance on the finished rental?
If you answer no to the first three, a construction loan is usually the better starting point. If you answer yes to all seven, the line may fit, subject to lender guidelines and full file review.
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. Request a quote at Lendmire’s quote page.
Frequently Asked Questions
Can I use a HELOC to build a house on land I own?
It depends on the lender and on whether you have enough equity in the collateral property. The line is secured by an existing property with equity, not the lot being built on. Some lenders allow construction use and some restrict it, so check the written agreement.
Does the build raise the value the lender uses?
No. The lender values the existing property as it stands, so a structure that does not exist yet adds nothing to the number. A construction loan sizes to the completed project instead.
Can I get a HELOC while construction is underway?
Lenders generally do not open a line on a property that is still under construction. The line has to be in place on a finished property with equity before the project starts.
How much can I borrow on an investment property?
On this network, an investment-property line caps at 70% CLTV and $500,000, with a 700 minimum score. Primary-residence and second-home lines can reach higher CLTV tiers, and only at 720 or better in the top tier. All figures are subject to lender guidelines.
How do I repay the line after the build?
Most investors plan an exit before they draw. A common one is a DSCR refinance on the stabilized rental, which qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted.
About Lendmire
Lendmire is a mortgage brokerage (NMLS# 2371349) arranging home equity lines of credit — primary-residence, second-home and investment-property lines — through a wholesale lending network in its 16 full-service states. Eligibility is determined by the lender on each file. 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. Investor commentary on BiggerPockets
3. BiggerPockets thread on a build-to-rent strategy
This article is part of Lendmire’s HELOC & home equity loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How Much Can You Borrow on a DSCR HELOC on an Inherited Home After Probate? · Investment Property HELOC Requirements With a Severance Package and an Offer Letter · How an Investment Property HELOC Works to Fund Business Equipment
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
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- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Disclosures. The information presented in this article is general market commentary, not financial, legal, or tax advice. Lendmire is a mortgage brokerage (NMLS# 2371349) — not a direct lender or depository institution — and loan placement is subject to lender underwriting. Nothing in this content represents a commitment to lend. Loan terms, pricing, and program availability vary based on borrower qualifications, property characteristics, and state of subject property, and are subject to change at any time. Lendmire complies with Equal Housing Opportunity requirements. Consumer access: nmlsconsumeraccess.org.