How Much Can You Borrow on an Investment Property HELOC With All Other Units Leased?

The Quick Read: The limit comes from your equity and your personal credit, not from how many tenants you have.

• Investment lines on this network top out at 70% combined loan-to-value (CLTV), and 700 is the credit floor.
• Lines run from $25,000 to $500,000, and the full limit counts toward leverage even if you never draw it.
• Rent is not counted for qualifying on this line, so a leased building and a vacant one are treated the same way.
• Title must sit with you personally or in a revocable living trust, not an LLC.
• If the line is too small or the title is wrong, a DSCR cash-out refinance is the usual fallback.

What Does “All Other Units Leased” Actually Change?

It changes the occupancy label and almost nothing else. If you do not live in the building, a lender sees an investment property whether one unit or all four are rented. That label decides which leverage table, credit floor and line-size limit apply.

Say you own a duplex, triplex or fourplex and every unit is rented to someone else. That is an investment property, and everything below applies. If instead you live in one unit and lease the rest, that is a different file with different limits, covered further down.

A lease helps you in practical ways. It shows the property is a real rental, and a lender may ask for a list of which units are occupied. It does not add borrowing power on a standard personal-credit line, because that line is underwritten on your credit and debt-to-income ratio (DTI), not on the building’s rent.

How Is the Maximum Line Calculated?

Multiply the property’s value by the allowed CLTV, then subtract every loan already secured by the property. Whatever remains is your room. The program then caps it at the maximum line size.

CLTV means combined loan-to-value: your existing mortgage plus the new line, divided by the property’s value. On an investment property, the ceiling on this network is 70% CLTV. That leaves 30% of value untouched.

Run it with percentages. Say your first mortgage equals 50% of the building’s value. At a 70% ceiling, your room is 20% of value. Say the first mortgage equals 60% of value. Your room drops to 10% of value. If the first mortgage sits at or above 70%, no room exists at all.

Now add the floor. The smallest investment line is $25,000. On a modest building, room that falls below that amount means the line does not fit, no matter how strong the rent is.

NerdWallet reports that lenders generally want at least 20% equity on an investment property, per NerdWallet. On this network the equivalent is the 70% CLTV ceiling, which leaves 30% equity behind. NerdWallet also notes that fewer lenders offer these lines and that you will borrow less than against a primary home. That matches what a broker sees: the lender pool is narrow, which is why comparing several wholesale programs matters.

Does Unit Count Change the Limit?

No. A duplex, triplex and fourplex share the same 70% ceiling and $500,000 cap. Unit count affects eligibility, not leverage.

Eligible collateral includes single-family homes, 2-4 unit buildings, PUDs, townhomes and condominiums (including non-warrantable ones). Five or more units move into commercial lending, which is not offered here. These property types are not offered at all: manufactured homes, co-ops, condotels, log homes, commercial, mixed-use and agricultural-zoned property.

Some programs set a higher credit floor for 2-4 unit buildings. On this network, one wholesale program sets a 640 minimum for 2-4 units, but investment lines already require 700, so that floor never binds you.

What Credit, Income and Documents Come Into Play?

Your personal profile drives the approval. An investment line needs a 700 minimum credit score, and there is no tier below it. A 720 score reaches the same 70% ceiling as a 700, so credit above 700 buys eligibility rather than extra leverage.

DTI can run up to 50%, and the lender reviews your file on the interest-only payment calculated on the maximum draw. That means the full credit limit counts against you, not just the amount you plan to use. An investor with several financed rentals feels this quickly, because every property’s payment sits in that ratio.

Other file items worth knowing:

The credit report can be no more than 90 days old at closing, and rescores are not available. A borrower is limited to three lines, and an owner of more than 15 financed properties is not eligible. Expect to supply the lease, mortgage statements for every financed property, the insurance declaration and the vesting deed. A written breakdown of which units are occupied and which are rented helps on a multi-unit building. A bankruptcy needs 4 years of seasoning from discharge or dismissal, foreclosure history follows a 7-year path, and a deed-in-lieu, pre-foreclosure or short sale follows a 4-year path.

How Does Valuation Work at This Size?

Most investment lines use an automated valuation instead of a traditional appraisal. Full appraisals are required only above $500,000, and an investment line caps at exactly $500,000. A higher CLTV can trigger a secondary valuation, and you can request a full appraisal in any case.

For contrast, conventional loans on 2-4 unit buildings use a report form built for small income properties. The Fannie Mae Selling Guide lists Form 1025 for that purpose and Form 1007 for single-family rent schedules. Those are conventional-loan forms, not the rule for this line.

Which Occupancy Scenarios Change the Answer?

Occupancy changes the ceiling more than anything else. This table shows the main cases on this network.

The live-in case deserves a closer look. A primary residence can reach 90% CLTV, but only with a credit profile of 720 or better. Lines above $500,000 are primary-residence only and carry additional credit and appraisal requirements. Those higher numbers belong to owner-occupants. Claiming to live in the building when you rent out every unit misstates the file, and the occupancy label has to match how you actually use the property.

Vacancy alone does not reclassify an investment property. A vacant unit in a building you do not occupy still files as an investment property at 70% CLTV.

Can an LLC Hold the Property?

Not on a standard investment line. Only an individual or a revocable living trust can hold title. LLCs, corporations, partnerships and irrevocable, blind or land trusts cannot.

This is the sharpest structural difference from a DSCR loan, which can close in an LLC name, depending on program guidelines. A building already deeded to an LLC needs a vesting change before it qualifies for the line. If moving title does not suit your plan, a DSCR cash-out refinance is the cleaner route.

How Does the Line Work After Closing?

It is a standalone line in first or second lien position, with a draw period and a repayment period. The CFPB describes a home equity line as an open-end credit line you can borrow against repeatedly, based on available equity. Investment lines here use a 5-year interest-only draw followed by a 25-year fully amortizing repayment.

At least 75% of the line is drawn at closing, so you cannot take a large line and leave it all idle. The payment floats across both the draw and repayment periods and never converts to a fixed structure. That matters if you plan to use the money for a down payment or rehab on another rental, because the carry on this line sits on top of that property’s own obligations.

Availability is narrower than most investors expect. Lendmire places HELOC loans in 16 states, a smaller footprint than its DSCR lending across 41 markets, including Washington, D.C. A property listed for sale, or listed within the past 60 days, is ineligible in several of those states.

What If the HELOC Is Too Small?

Switch products rather than forcing the fit. A DSCR cash-out refinance qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. It suits LLC titles, larger cash needs and credit below the line’s 700 floor.

Program terms vary by lender across the wholesale network, so the figures that follow are typical rather than fixed.

• Cash-out refinance on a standard rental tops out around 75% LTV, with roughly 6 months of seasoning as the common expectation.
• A 1.00 coverage ratio is where many select programs start. A separate select-lender path goes below 1.00, with leverage and terms adjusted.
• Credit floors start at 620 in parts of the network, most programs want about 660, and 700+ opens the strongest leverage.
• Standard loan sizes run up to $3,000,000 on standard programs (smaller balances available through select lenders), with reserves that vary by lender, leverage and loan size, commonly around 6 months of PITIA (principal, interest, taxes, insurance and any association dues).

A refinance resets your whole loan, so a building with a low-balance first mortgage may prefer a line of credit, while one with a high-balance first mortgage may not. The complete DSCR loans guide covers how coverage is tested.

One caution on reading the ratio: clearing 1.00 does not mean positive cash flow. DSCR compares rent to the mortgage payment only, so repairs, vacancy, management, utilities and capital expenses all sit outside it.

Key Terms Defined

HELOC: a home equity line of credit, an open-end line you can draw on repeatedly during a set draw period.

CLTV: combined loan-to-value, which adds every loan on the property together and divides by its value.

Second lien: a loan that sits behind your first mortgage in repayment priority.

DSCR: debt service coverage ratio, the property’s monthly rent divided by its full monthly housing payment.

Vesting: how the deed names the owner, whether a person, a trust or an entity.

Next Step

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. Reach the team at 828-256-2183, or use the quote request page.

Lendmire is a mortgage broker that arranges financing through select lenders in its wholesale network. Every figure here is subject to lender guidelines, and none of it is a commitment to lend.

A three-unit building with all three units rented will still borrow against its equity, not its rent roll, and that is the number to size before anything else.

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.

References

1. NerdWallet

2. Fannie Mae Selling Guide

3. CFPB