Picture two nearly identical three-bedroom canal homes, same builder era, same dock access, maybe a mile apart as the pelican flies. One sits on Oak Island. The other sits just across the bridge in Southport. On paper, comparable specs. In an underwriting spreadsheet, they are not the same asset at all.
The difference has nothing to do with square footage, finishes, or even the view. It comes down to a permit date on file with a town clerk. One of these houses can legally rent by the week to a vacationing family next summer. The other, depending on paperwork nobody thinks to ask about until it's too late, may not be allowed to.
A Zoning Line With a Permit Date
Southport made a deliberate choice a few years back: new short-term rentals in residential districts are prohibited. Existing rentals were allowed to continue, but only as legal nonconforming uses, and only if the owner had already secured the required zoning permit by September 7, 2021, a cutoff the city documents on its own site. That date is not a suggestion. It is the line the town drew between properties that can generate nightly rental income and properties that, going forward, can only be sold, lived in, or leased long term.
That cutoff is now five years behind us. Any Southport home that didn't hold a permit by that date has been locked out of new short-term rental use for half a decade, with no mechanism to opt back in.
Oak Island took the opposite path. It has no local ordinance governing short-term rentals at all. Properties there operate under North Carolina's statewide Vacation Rental Act, the same baseline rules on written rental agreements, security deposit handling, and occupancy disclosures that apply across the state, plus standard zoning and safety code. No town-level cap, no residential-district prohibition, no grandfather clause required, because there was never a rule to grandfather around.
That gap in the code is partly a function of state law. North Carolina's Short-Term Rental Act limits how far local governments can go in prohibiting rentals that were already operating before a new ordinance takes effect, which is exactly why Southport had to build a nonconforming-use carveout instead of simply banning existing rentals outright. Oak Island simply never triggered that mechanism by writing a restriction in the first place.
What That Blank Ordinance Page Is Actually Worth
An ordinance that doesn't exist is easy to overlook on a listing sheet. It shows up instead in the numbers a rental-ready Oak Island property can produce that a rental-restricted Southport property cannot.
Performance data tracked across the twelve months ending in March 2026 shows Oak Island's active short-term rental stock, nearly 1,400 listings, skewing heavily toward entire-home properties, with three-bedroom and four-bedroom houses making up roughly six in ten active listings. Nightly rates split into wide tiers depending on condition and location: a typical property commanded around $355 a night, the top quarter of performers cleared $547 or more, and the strongest 10 percent of listings pulled $827 or higher. Monthly revenue followed the same spread, from a median around $3,781 up to $10,756 or more for the top decile, while occupancy for a typical property ran near 35 percent, dropping to about 19 percent for the weakest performers.
Those figures are gross, not net. Property management in the Oak Island market typically runs 15 to 30 percent of gross rental revenue, with full-service arrangements covering guest communication, dynamic pricing, and cleaning coordination landing at the higher end of that range. Fees have crept up a point or two since 2024 as insurance and labor costs have risen across the vacation rental sector. Run the math on a median-performing property and a fifth to a third of that gross revenue disappears before an owner sees a dollar.
None of that math is available to a buyer looking at the same floor plan across the bridge in a residential district that's closed to new short-term permits. That property's income ceiling is whatever a long-term tenant will pay, full stop. The zoning line doesn't just restrict use. It restricts which valuation model even applies.
| Oak Island | Southport (residential districts) | |
|---|---|---|
| New short-term rental permits | No local restriction | Prohibited |
| Existing rentals | Governed by state Vacation Rental Act | Allowed only as nonconforming use if permitted by Sept. 7, 2021 |
| Local STR-specific ordinance | None identified | Yes, with grandfather clause |
| Accommodations tax registration | Filed through the town's Finance Department | Handled separately per city rules |
Why the Median Price You Read Depends on Who's Counting
Ask three sources for Oak Island's median home price this year and you'll get three different answers, and the spread itself is a clue. Zillow's home value index put the average at $555,572 as of the end of July 2026, down 1.4 percent year over year. Data tied to January 2026 closings showed a $721,000 median from one tracking source and $729,000 from another, both up sharply from the prior year. A local brokerage's own market update pegged the median sold price at $672,500 for a snapshot around April 2026, down 7 percent from the prior month alone. Meanwhile, separate reporting on early-2026 activity put the figure closer to $690,000, with homes averaging 153 days on market and a sale-to-list ratio near 97 percent.
Those numbers aren't measurement error. They're sampling a market that genuinely splits into two tiers depending on which handful of homes closed in a given month. Oceanfront and premier canal-front properties with deep-water dock access commonly list above $1.5 million and can exceed $2.5 million for larger, updated homes. Interior and non-waterfront homes are commonly available in the $400,000 to $800,000 range. A month where more oceanfront inventory happens to close will pull the median up. A month weighted toward interior sales pulls it down. Days on market swing just as widely across sources, from roughly 91 days to 153 days depending on the month and the provider.
Layer the rental-legality question on top of that same fault line and the split gets sharper still. A canal home with unrestricted short-term rental access competes for buyer attention against every other legally rentable property on the island, drawing investor demand that a comparably priced but rental-restricted Southport property never sees. Two houses at the same price point are not necessarily competing in the same buyer pool.
A house's location tells you what it looks like. A permit date tells you what it can earn.
What This Means If You're Comparing the Two Towns
If a short-term rental income stream is part of your reason for buying on this stretch of coast, the ordinance question belongs at the top of your due diligence list, ahead of square footage and finish level. For any Southport property marketed as an income opportunity, ask directly whether it holds a zoning permit that predates September 7, 2021, and ask to see it. A listing agent's assurance that a home "has always been rented" is not the same as a documented permit on file with the city.
For an Oak Island property, confirm the seller has been current on accommodations tax registration through the town's finance office, since an unregistered rental history can complicate your own transition into compliant operation. And before you compare a nightly-rate pro forma against a competing property's asking price, net out a realistic management fee, somewhere in the 15 to 30 percent range depending on how much of the operation you plan to handle yourself, before you compare two homes as if their sticker prices tell the whole story.
Does Oak Island have any restrictions at all on short-term rentals? Beyond the statewide Vacation Rental Act and general zoning and safety code, no town-specific ordinance targeting short-term rentals has been identified for Oak Island. Confirm current rules with the town before purchasing for rental purposes, since local policy can change.
If I buy in Southport hoping to rent short term, am I out of luck? Not automatically. If the specific property already holds a zoning permit obtained by September 7, 2021, it may continue operating as a legal nonconforming use. Confirm the permit's existence and transferability with the city before assuming rental income is part of the deal.
Could Oak Island adopt a similar restriction later? Possibly. State law limits how aggressively a town can restrict rentals that are already operating once a new ordinance passes, which is exactly the protection Southport's existing operators relied on. A buyer counting on rental income should treat today's open rules as current, not permanent.
Comparing two coastal towns on price per square foot alone will miss the mechanism that actually separates them. If you're weighing a purchase on either side of that bridge and want the permit history, tax registration status, and realistic income math run for a specific property, Turn-Key Realty can walk through the paperwork with you before you write an offer, not after.
