HELOCs and Second Mortgages in Murrells Inlet, SC: Borrowing Against a Marsh-Side Home

On September 30, 2022, Hurricane Ian flooded the MarshWalk in Murrells Inlet, and WMBF reported that most of its businesses were open again by that weekend. A village built along a tidal inlet and its salt marsh has water in its address, and the water decides what insurance a home needs.

On a Murrells Inlet home, how much a HELOC can reach depends first on how you use the home. The lenders I use allow less on a second home than on the home you live in, and they require flood insurance on any home in a high-risk zone. A second mortgage comes behind your first mortgage and leaves it exactly as it is.

I'm Jeff Moran, NMLS #483943, a mortgage broker licensed in South Carolina through C2 Financial Corporation, NMLS #135622, and I have been in the mortgage business since 1996. I'm licensed across South Carolina, I work from Bluffton, and I work with Murrells Inlet clients by phone. My Murrells Inlet page covers the village, the MarshWalk and the Georgetown County tax bill. My Myrtle Beach area page covers the region, and the home equity page explains HELOCs and second mortgages in general. The terms below are what my lenders' sheets say, dated May 2026, and the sheets change.

Which county the home is in

Murrells Inlet, as the Census Bureau draws it, is in Georgetown County, and the ZIP code reaches into Horry County around Garden City and Burgess. ZIP 29576 is listed in both counties. A second mortgage does not care which county the home is in, but your tax bill and the deadline for the 4% rate do, and my Murrells Inlet page explains both. The parcel's record in the county property search tells me which county applies.

A primary home, a second home and a rental

Lenders sort a home by how it is used. A primary home is the one you live in most of the year. A second home is one you keep for your own use. On one lender's sheet, a second home must be a one-unit home. A third lender defines it as a home you use in addition to your primary residence, one that may not be leased or rented other than on an occasional basis, and one where rental income cannot be used to qualify. Its sheet adds that a second home is typically in a natural second-home market at least 50 miles from the client's primary residence.

For the arithmetic, I'll use the Coastal Carolinas Association of REALTORS figure for the 29576 ZIP area, which covers Garden City and Murrells Inlet in both counties. Through August 2026, the single-family year-to-date median was $465,000 on 548 closed sales, per the CCAR report. A median is not your home's value, and an appraisal sets that. I'll pair it with a first mortgage balance of $200,000, a round figure I picked.

How the home is used	Lender and credit score	Ceiling	All loans combined on $465,000	Room for the line
Primary home	First lender, 720 or higher	95%	$441,750	$241,750
Second home	First lender, 680 or higher	90%	$418,500	$218,500
Second home	First lender, 660 to 679	80%	$372,000	$172,000
Second home	Second lender, 720 or higher	80%	$372,000	$172,000
Second home	Second lender, 700	75%	$348,750	$148,750

A second home on the first lender's sheet carries a margin add-on of 0.5%, and it needs more reserves, which is money you hold after closing. At a score of 680 or higher, a primary home with a line of $200,000 or less needs none, and a second home needs 3 months of payments. Between $200,000 and $350,000 the second home needs 9 months, so in the table above the $218,500 line would carry that larger reserve. A line of $200,000 or less on a second home needs 6 months at a score of 660 to 679.

The second lender's sheet asks that you have owned the home for 12 months and that it not have been listed for sale in the last 6 months. On a home the client bought less than 6 months ago, the first lender uses the lower of the purchase price or the appraisal.

If you rent the home out

The first lender's sheet says investment properties are ineligible for its HELOC. It also gives a path for a seasonal rental: a home that appears as a rental on your tax returns but that you also occupy part of the year may still qualify as a second home. The conditions are that the rental income is not used to qualify and that the home's location reasonably supports its use as a second home. The second lender takes investment properties on its HELOC, at 80% combined at a score of 720 and 75% at 700, with lines up to $400,000, and its fixed-rate DSCR second states that short-term rentals are not permitted.

So the same inlet cottage can be a second-home loan at one lender and an investment-property loan at another. Please tell me how often and how the home is rented, so I can ask the right lender.

The tax side is separate. A South Carolina home rented more than 72 days a year is assessed at 6% and not 4%. On the ZIP's $465,000 median, that is $27,900 of assessed value. Georgetown County's District 41 levied 248.8 mills for tax year 2025 by the county's millage sheet, so the arithmetic is $27,900 times 0.2488, or about $6,942 a year. That is illustrative arithmetic, and your actual bill will differ. I did not find a Georgetown County short-term rental permit rule for Murrells Inlet, so please check the county's business license and rental rules before you count on rent.

Flood zones, the wind pool and what the lender asks for

Flood insurance is required on a home in a high-risk flood zone. The third lender's guidelines require flood insurance in an area FEMA designates as a Special Flood Hazard Area, with the policy escrowed, and it requires a life-of-loan flood certificate. One of my lenders is a credit union, and the federal rule for credit unions says it cannot make a loan secured by a home in a high-risk zone unless the home is covered for the term of the loan.

On a tidal inlet, I would look at the FEMA zone and the elevation certificate, the surveyor's form that records how high the home is built, before you decide how much to borrow. A Georgetown County newsletter says the county reached Class 7 of FEMA's Community Rating System in May 2017, which gives a 15% discount for people who carry flood insurance. Please confirm the current class.

The state's wind pool writes wind and hail coverage in a coastal area set by statute. For Georgetown County, S.C. Code § 38-75-310 draws that area between the Harrell Siau Bridge and the Horry County line, east of a line that parallels US 17. Your insurance agent checks the specific address, and I put that premium in the payment I qualify you on.

The appraisal, the title and the vesting

On the first lender's sheet, a line of $400,000 or less uses an automated valuation and a larger one a full appraisal. On a second home in a declining market, it caps the combined ratio at 65% no matter how small the decline.

Title matters. The first lender does not accept corporations or general and limited partnerships on the loan, and the second lender does not allow a home vested in an LLC, a corporation or a partnership. If your Murrells Inlet home is titled in an LLC, please tell me at the start, because it narrows which lenders are open. Both also exclude irrevocable trusts.

Fees and the rate

The first lender's HELOC rate is the Prime Rate plus a margin set by your score, combined ratio, line size and occupancy, with a floor of 4.95%, an 18% lifetime cap and no prepayment penalty. A $495 origination fee and a $100 processing fee are debited from the line at closing. My South Carolina page covers attorney closings, and a cash-out refinance or refinancing is the route if replacing your first mortgage fits better.

What I would ask you for first

Getting pre-approved in South Carolina covers a purchase. For a line, please send your most recent first mortgage statement, all pages, even if the last page is intentionally left blank. Add your homeowners and flood declarations pages and the address, so I can check the county and the zone. I will tell you which lender fits how you use the home. Home equity lines are not priced in the Rate & Best Fit tool on this site, so the next step is a call to me.

Nothing on this page is a loan approval, a denial or a commitment to lend, and it is not tax advice. Each lender sets its own terms and can change them, and your credit, your income and the appraisal decide where you land under the ceilings above.

Common questions

Can I get a HELOC on a second home in Murrells Inlet?

Yes, with lower limits than on a primary home. The first lender's sheet allows a one-unit second home up to 90% combined at a score of 680 or higher and 80% at 640 to 679, and the second lender allows 80% at a score of 720. Both are ceilings, and the appraisal and your income decide the rest.

Does a HELOC work if I rent my Murrells Inlet home?

It depends on how it is rented. One lender does not lend on investment properties but may treat a seasonally rented home you also use as a second home, if the rent is not used to qualify. Another lender takes investment properties at lower ceilings. Tell me how often and how the home is rented.

Do I need flood insurance for a HELOC in Murrells Inlet?

If the home is in a high-risk flood zone, yes, and a credit union lender cannot lend on it without that coverage. The zone is a lookup on your specific address, so please check it before you apply.

Can I borrow if the home is in an LLC?

Not at the lenders whose sheets I read, which do not allow a home vested in an LLC, corporation or partnership. Please tell me how the home is titled first.