How an Investment Property HELOC Works With a Solar Lien or an Unpermitted ADU

The Quick Read: An investment property HELOC can work with a solar lien or an unpermitted ADU, but each one changes the file in a different way: a solar lien eats into combined leverage and usually has to be cleared before the line, while an unpermitted ADU is a collateral and value problem that never counts as rental income.

• On an investment property, the network’s home equity line tops out at 70% combined loan-to-value, with a $500,000 maximum line and a 700 minimum credit score, subject to lender guidelines.
• The word “solar” tells you little. The recorded instrument (equipment filing, fixture filing, solar mortgage, or tax-bill assessment) decides the outcome.
• A tax-bill assessment tied to solar, known as PACE, is the hardest item because it generally outranks the mortgage and has to be paid off.
• An unpermitted unit is a legal-use and valuation issue, and a HELOC is underwritten on the borrower, not on rent.

What an Investment Property HELOC Actually Is

An investment property HELOC is a revolving line secured by a rental you already own, underwritten on your credit, debt-to-income ratio, and available equity rather than on the rent. That is the single biggest difference from a DSCR loan, which qualifies primarily on property-level rental income covering the payment, subject to lender guidelines.

Fewer lenders offer these lines on rentals than on primary homes. NerdWallet notes that requirements are stricter because lenders see higher default risk, and that some lenders ask for more than one appraisal.

Across the wholesale network Lendmire works with, the investment-property version looks like this:

• Leverage: 70% CLTV on an investment property, at a credit score of either 700 or 720. A higher score buys eligibility, not extra leverage.
• Credit: a 700 minimum, which is a hard floor with no lower tier for investment lines.
• Line size: $25,000 up to a $500,000 maximum on an investment property.
• Structure: a standalone line in first or second lien position, with a 5-year interest-only draw period followed by a 25-year fully amortizing repayment period. At least 75% of the line is drawn at closing, and the line is a revolving one only for the remaining balance.
• Debt-to-income: 50% maximum, qualified on the interest-only payment calculated on the maximum draw.
• Valuation: because the line caps at $500,000 and full appraisals begin only above that amount, an investment line sits structurally in the automated-valuation lane and commonly closes without a traditional appraisal. A borrower can still ask for a full appraisal.
• Title: the borrower must be an individual or an inter vivos revocable living trust. An LLC, corporation, partnership, or irrevocable, blind, or land trust cannot hold title.
• Limits: no more than three lines per borrower, and a borrower with more than 15 financed properties is not eligible.
• Availability: the line is offered in 16 full-service states, a narrower footprint than the DSCR loan platform’s 41 markets, including Washington, D.C.

Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agriculturally zoned properties are not offered. Every figure here is a guideline range subject to lender review, not a commitment to lend.

Key Terms Defined

Combined loan-to-value (CLTV): all liens on the property added together, divided by the property’s value.

UCC-1: a public filing a secured party records to claim an interest in personal property, such as solar equipment.

Fixture filing: a UCC-1 recorded in county land records against the property, because attached panels count as fixtures.

UCC-3: the termination form the secured party files to end a UCC-1 after payoff.

PACE: a clean-energy assessment collected through the property tax bill, which generally ranks ahead of the mortgage.

Solar mortgage: a deed of trust or mortgage recorded against the property to secure a solar loan.

Subordination: a signed, recorded agreement in which one lienholder agrees to rank behind another.

How Underwriting Treats a Solar Lien, Step by Step

Underwriting a line with solar attached is a sorting exercise. The lender first learns what was recorded, then counts how much equity is left, then decides whether to clear, reorder, or decline.

Step 1: Classify what is on title. A title report plus a UCC search sorts each solar item into one of five buckets:

1. Nothing, because the system is owned outright.

2. A state-level UCC-1 covering equipment.

3. A county fixture filing.

4. A recorded solar deed of trust or mortgage.

5. A PACE assessment on the tax bill.

Gather the solar contract, any loan or lease papers, and every filing found in the state UCC database and county records.

Step 2: Count the leverage. CLTV adds every lien and divides by value. The usable room is roughly value times the 70% ceiling, minus what is already recorded. Here is an illustration in percentages only: a first mortgage at 53% of value leaves 17% of value in room. A recorded solar balance or PACE assessment equal to 4% of value shrinks that to 13%. The $500,000 line cap is a separate limit that can bind first on higher-value properties.

Step 3: Clear or reorder. A payoff followed by a UCC-3 termination from the secured party clears a UCC-1 or fixture filing. A recorded deed of trust needs payoff and a recorded release. PACE needs a payoff statement and full payoff. Subordination is a fallback some lenders accept in general. On this network, plan on clearing a solar lien before the line, and treat a bare equipment-level filing as a lender-by-lender call.

Step 4: Reconcile lien position with the title company. A UCC filing generally ranks behind a recorded mortgage. Title companies still often ask for a subordination or a written confirmation that the filing covers fixtures only.

Step 5: Confirm the termination was recorded. A payoff alone is not proof. The solar company has to file the UCC-3, so ask for the recorded copy and check the records again.

Which Solar Arrangements Are Really Liens?

A recorded lien and a notice of ownership are different things, and the table below shows how each solar arrangement usually plays out. Treat it as a pattern guide, since lenders differ on the edges.

Atlantic Title describes a fixture filing as an encumbrance that shows up in a title search and must be addressed before closing. A fixture filing is not a mortgage, but it can still stall a file.

Why PACE Is the Exception

PACE is the one solar instrument that outranks your mortgage. The CFPB’s residential PACE final rule states that PACE loans are secured by a lien on the consumer’s real property and that PACE liens take priority over pre-existing mortgage liens. The same document records commenters’ concern that this “super-priority” status undermines mortgage underwriting.

Large agency programs treat it the same way. Fannie Mae’s Selling Guide will not buy loans on properties with an outstanding first-priority PACE assessment, and it expects borrowers with enough equity to pay it off. Agency rules do not govern DSCR or equity-line programs, but they show why PACE is treated as a payoff item across the industry.

Two practical points follow. A UCC-3 does not clear PACE, because only payoff, or rarely a servicer subordination, does. And a PACE balance is not a “just another solar loan” item, since it sits on the tax bill and travels with the property.

Leases and PPAs

A leased system or power purchase agreement is usually less painful than a loan. The provider owns the equipment and files a UCC-1 to show it. Effective Agents explains that this filing secures the equipment, not your equity, though a buyer or lender may still ask for a subordination or termination. Expect a title conversation rather than a leverage hit.

The Unpermitted ADU Is a Different Problem

An unpermitted ADU is not a lien at all. It is a question about what the collateral is, what it is worth, and whether the unit can legally be used.

Appraisers generally value the property as it exists legally, so living area without permits tends to be left out. An improvement of any kind may support a higher appraised value, depending on comps and underwriter review, but unpermitted space is the weakest version of that argument.

Here is the part many owners miss. A HELOC does not use rent to qualify you, so the ADU’s rent never helps the application. The unit matters only through value, collateral acceptability, and legal-use questions. A line in the automated-valuation lane might never put an appraiser inside the building, but the borrower still signs representations about the property, and a later full appraisal can surface the unit.

It matters far more on a DSCR file. DSCR compares monthly rent to the full monthly obligation (principal, interest, taxes, insurance, and any HOA dues). If rent from an unpermitted unit is excluded, coverage can drop. Many select programs start at 1.00, and a separate select-lender path takes coverage below 1.00 with leverage and terms adjusted. Clearing the benchmark is also not the same as positive cash flow, because repairs, vacancy, and management sit outside the calculation.

If You Have Both Problems

The two problems stack, so sequence matters. Fix the lien items first, because they cost equity and are the ones that can block the line outright. Then deal with the permit status.

1. Pull the title report and run the UCC and county searches.

2. Classify every solar item and gather the paperwork.

3. Request payoff statements, and for PACE, a full payoff figure.

4. Get the termination or release recorded, then confirm it on the public record.

5. Recount CLTV against the 70% investment ceiling.

6. Decide whether to legalize the ADU through permit and inspection or leave it out of the value story.

Costs and timelines for legalizing vary by jurisdiction, and no reliable national figure exists, so get a local quote before building it into the plan. Order the searches and payoff statements before applying, since a termination depends on the solar company filing the form.

HELOC or DSCR Cash-Out? (The Decision in Practice)

The right tool depends on the property, the title, and the investor.

A HELOC makes sense when you hold personal title, carry a low first mortgage you want to keep, and your debt-to-income ratio and credit (700 or better) carry the file. A DSCR cash-out refinance makes more sense when the rental is held in an LLC (subject to lender program eligibility), when your personal debt-to-income ratio is the constraint, or when paying off a solar lien at closing is easier than clearing it ahead of time. On a standard rental, cash-out typically tops out around 75% LTV with about 6 months of seasoning, and short-term-rental collateral generally tops out at 70%. The tradeoff is that you give up the existing first mortgage.

If the property is already deeded to an LLC, the line is off the table until title moves to you or a revocable trust, and that is worth thinking through before you retitle anything. For the full picture of how coverage, leverage, credit, and reserves fit together, the complete DSCR loans guide covers the investor-loan side.

Common Mistakes

• Treating a UCC-1 as harmless. A state-level equipment filing may be, but a county fixture filing sits in the land records until it is released.
• Assuming a UCC-3 clears PACE. It does not.
• Counting ADU rent on a DSCR file. Generally, unpermitted rent is excluded.
• Skipping the CLTV recount. A small recorded balance can take a meaningful bite out of a 70% ceiling.
• Expecting rental-line terms to match home-line terms. An investment line carries a 70% CLTV ceiling and a 700 credit floor, so check those limits before you plan around it.

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. Investors can call 828-256-2183 or request a quote.

About Lendmire

As a mortgage broker (NMLS# 2371349), Lendmire helps homeowners and real estate investors in its 16 full-service states open home equity lines of credit arranged through wholesale lenders. Lendmire is never the lender; line amounts, ceilings and terms are set by the lender under its guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. NerdWallet

2. Atlantic Title – Solar Panel Liens and UCC Fixture Filings

3. CFPB residential PACE final rule

4. Fannie Mae Selling Guide B5-3.4-01, PACE Loans

5. Effective Agents – Selling a House With Leased Solar Panels