Custom home builder in Shallotte, North Carolina, on the river and either side of US 17.

Here's what Shallotte decides for your lot.

We build new homes and remodel existing ones in Shallotte, from our home base in Southport.

• In a river flood zone, the house must sit two feet above the map's flood height.
• Where town sewer ends, you need a soil test, then a county septic permit.
• An ADU can't be taller than the house, and its floor area tops out at 35 percent of the house's.

At a glance

County

Brunswick County

Jurisdiction

Town of Shallotte: Unified Development Ordinance, reaching into the town's extraterritorial jurisdiction

Ultimate design wind speed

140 mph west of US 17, 150 mph east (2018 NC Residential Code, Table R301.2(4))

Flood maps

The Flood Insurance Study the town's ordinance adopts, currently dated August 28, 2018, read on fris.nc.gov

Drive from Southport

About 24 miles, roughly 35 minutes, via NC 211 to US 17 through Supply

Residential Contractor License #109520 · Member, Brunswick County Home Builders Association

Your Shallotte zoning district sets the footprint.

Jurisdiction

Town of Shallotte, Brunswick County: the UDO's zoning districts and flood rules both reach into the town's extraterritorial jurisdiction, and Brunswick County governs beyond it

Adopted code

Town of Shallotte Unified Development Ordinance (2026-03-24 edition): Article 9 zoning, Article 10 accessory structures and dwellings, Article 11 dimensional standards, Article 23 flood damage prevention, Article 25 stormwater

Permit authority

UDO Administrator for zoning; Planning Board and Board of Adjustment for review, appeals, and variances; Board of Aldermen as the governing body; the Mayor is the ordinance's designated Floodplain Administrator; the Brunswick County Building Inspector performs building-code inspection for the Town

Flood-map source

The Flood Insurance Study the flood ordinance adopts by reference for Shallotte, along with future revisions (currently dated August 28, 2018), and its associated DFIRM panels, read through the NC Flood Risk Information System

Ultimate design wind speed

140 mph west of US 17, 150 mph east (2018 NC Residential Code, Table R301.2(4), footnote c); the town and its ETJ hold parcels on both sides

Shallotte governs its own land use. A UDO Administrator runs the Unified Development Ordinance day to day. The Planning Board acts as the zoning and planning commission. The Board of Adjustment hears appeals and variances as a quasi-judicial body. That means it holds a hearing and decides each case on the evidence, much as a court would. The Board of Aldermen sits above all of it as the town's governing body. The UDO reaches past the town limits, into the town's extraterritorial jurisdiction, or ETJ. That is land outside the limits that the town still zones. The zoning article divides "the Town of Shallotte and its extraterritorial jurisdiction" into districts. The flood article is explicit that the same rules apply inside the ETJ. The parcel itself settles whether it sits in the town, in the ETJ, or in unincorporated Brunswick County beyond it. The mailing address plays no part in it.

Article 9 divides the town and its ETJ into eighteen zoning classes. These include the R-10 and R-15 residential districts, and the agricultural-residential RA-15 and RAM-15. They run on through business, office, light industrial, conservation, and planned-development categories. Two districts are about the river in particular. A Commercial Waterfront district exists to reserve the town's limited water-access land for water-dependent uses. The ordinance sets nine tests for a conditional riverfront district, and the first two concern the parcel itself. The town's CAMA future land use map must mark the parcel as riverfront mixed use. CAMA is the state's Coastal Area Management Act. The parcel must also carry a state urban waterfront designation. Whether either district allows a house is a question for the town's planning office. Waterfront ground in Shallotte answers to its own zoning district first, before anyone assumes it is residential ground.

The Official Zoning Map sets which district applies to a given lot. Article 11's Table of Dimensional Standards then turns that district into the numbers that shape a house. Lot area and lot width are set there. So are the front, side, and rear yards a foundation has to sit inside. The UDO carries the zoning, flood, and stormwater review through to a permit. Building-code plan review and inspection is a separate counter. The Town sends those questions to the Brunswick County Building Inspector, who performs that service on Shallotte's behalf. A number of small North Carolina towns use that same arrangement.

For most new construction, a separate stormwater permit sits alongside the zoning and building permit. Article 25 reaches every area inside the town's planning jurisdiction. It says plainly that development cannot start without that permit. The application goes in on a town form, measured against the Stormwater Management Manual the Board of Aldermen has adopted. The ordinance carries its own exceptions, among them continuing work on existing development and bona fide farm activity. So a specific lot's threshold and required measures get read in the manual itself, together with the Town's Stormwater Administrator.

A lot inside a Special Flood Hazard Area faces a third review track. That one lands in the middle of a construction schedule. Article 23 calls for an Elevation Certificate on FEMA's own form three separate times. The first comes before construction starts. The second comes within seven calendar days of the reference level being set. The third is a finished-construction certificate, filed before a Certificate of Compliance or Occupancy is issued. Elevations are certified against the NAVD 1988 datum. Deficiencies found on review have to be corrected before work goes further. A missed certification at the second stage is grounds for a stop-work order. The last certificate arrives with photographs of the house's front and rear, taken within ninety days of the certification. Each certificate goes into the client's project record as it is issued, so the elevation history of the house reads as one continuous trail.

Four kinds of Shallotte lot lead to four different plans.

New construction in Shallotte

New construction in Shallotte starts on one of the town's four lot types. It may be a river-bluff parcel toward Rivers Edge, or a marsh-edge lot with a shoreline rule to respect. It may be an in-town lot in the older blocks off Main Street. Or it may be a wooded acre in the ETJ, often on well and septic. Each of the four calls for a plan built from its own site analysis. The site read comes first for a plain reason. Every design decision after it has to answer to the lot's zoning district, its flood exposure, and its wind figure.

Renovating an older Shallotte house

Renovating an older house in Shallotte usually means bringing it up to a tighter envelope and a drier wall assembly. The goal is to keep whatever made the lot worth having: the shade, the nearness of the Riverwalk, the block itself. On a lot inside a Special Flood Hazard Area, the flood ordinance draws a hard line through renovation work. An improvement counts as a substantial improvement once its cost reaches 50 percent of the structure's market value, measured before construction starts. A substantially improved house then has to be elevated to the same regulatory flood protection elevation a new house would be. That threshold is measured across any one-year period of work, so phases inside the same year count together. Below that line the ordinance asks less. The air-barrier and moisture questions that FORTIFIED Gold and the sub-1.0 ACH50 target raise for new work are worth asking anyway. An older house on a river-bluff lot carries one more question: how close the existing structure already sits to the flood mapping. That is a planning-office conversation before it is a design one.

An accessory dwelling under Section 10-4

An accessory dwelling unit in Shallotte is defined in the UDO as a self-contained residential unit on the same lot as the principal dwelling. It is subordinate to that dwelling. It can be attached, detached, or built within the primary structure. Where one is allowed on a given lot, Section 10-4 sets its shape:

• One accessory dwelling per property, always secondary to the primary use of the lot.
• A five-foot side and rear setback, with a detached unit sited behind the primary dwelling's front line.
• A height that cannot exceed the primary structure's, and a total floor area capped at 35 percent of the primary house's own floor area.
• At least one dedicated off-street parking space beyond whatever the principal residence already requires, and two once the unit passes 750 square feet.
• Compliance with the residential standards of whatever district the lot sits in, and no mobile home used as the accessory dwelling.

Which zoning districts allow an accessory dwelling by right, and which require a separate approval, turns on the UDO's own cross-reference. Section 10-4(B)(1) ties eligibility to the permitted-use tables in Sections 2-2 and 10-2. So the coastal and feasibility questions an ADU raises start with a call to Town Planning. On a wooded ETJ acre with room to spare, a detached unit and the primary house often solve two different problems at once. On a compact in-town lot, the setback alone can decide whether one fits.

Shallotte grew up at a crossroads above the water.

Shallotte is the market town Brunswick County built around a crossroads, nine tidal miles up its own river from the Intracoastal Waterway.

The Shallotte River is heavily tidal. It drains out of tributaries of the Green Swamp near the town, and runs roughly nine miles south to the Intracoastal Waterway. Shallotte Inlet and the ocean sit about a mile beyond that. The town grew up at the meeting of two roads more than at a harbor. US 17 runs the length of the coast, and NC 130 crosses it toward the beaches. Main Street carries US 17's business route through downtown. Shallotte incorporated in 1899. More than a century later, the crossroads still explains why building here is a different problem from building on the barrier islands. Holden Beach sits at the other end of NC 130.

The crossroads itself has moved once already. NC 130 meets US 17 at a partial cloverleaf on the edge of town. From there it rides along Main Street as US 17 Business before splitting again, north toward Whiteville and south toward Holden Beach. That was the only through-route until 2012. That year, a realignment shifted NC 130 onto a new Smith Avenue corridor, and the old Main Street alignment became NC 130 Business. US 17 itself bypasses the historic center to the northwest.

That geography leaves four kinds of lot, inside the town limits and in the ETJ beyond them, and they share almost nothing. Along the river bluff, toward Rivers Edge and the older waterfront streets, land sits up and looks down at tidal water. Closer to the marsh edge, the ground drops away, and a state shoreline rule can start to matter before the town ordinance ever does. In the older blocks off Main Street, small in-town lots sit within walking distance of the Riverwalk and Mulberry Park. Further out, wooded acreage is where a parcel with real room still tends to be found. That ground often sits past the reach of town sewer, and sometimes was never platted into a subdivision at all.

Each of those four gets read the same way before it gets designed. The formal site analysis that opens every project is written for the specific parcel. New homes in Shallotte and renovation of the town's older houses both start there. So does an accessory dwelling, on a lot with the room to carry one.

The 140 and 150 mph line runs through town.

Every house in Brunswick County is designed to an ultimate wind speed. The 2018 NC Residential Code sets it by which side of US 17 the house sits on. It is 140 mph west of the highway and 150 mph east of it. In Shallotte the line runs past the built-up middle of town. That is because the highway skirts the historic center to the northwest, while the business route keeps the name on Main Street. Two lots a short drive apart can therefore fall under different numbers. The site analysis settles which one governs a specific parcel before any engineering starts. The bypass and the business route both carry the number 17. Close to the corridor, the code official confirms which centerline the footnote means for a specific address.

Both figures clear the code's own threshold for what counts as high wind. Once the ultimate design wind speed reaches 130 mph, Section R301.2.1.1 requires a house to be designed under one of the methods it lists. They include the Wood Frame Construction Manual, ICC 600, ASCE 7, the building code, and the residential code's high-wind and coastal chapters (45 and 46). That threshold applies the same way anywhere in the county, and 140 and 150 mph both cross it. A barrier-island town with a single zone can be treated as one number. A town split by the line has to be read lot by lot.

The river adds a second variable the wind map does not carry. Where the Flood Insurance Study places a lot in a Special Flood Hazard Area along the Shallotte River, the town's flood ordinance sets a regulatory flood protection elevation of the base flood elevation plus two feet of freeboard, or at least two feet above the highest adjacent grade where no base flood elevation has been established for that reach. The base flood elevation is the water height the Flood Insurance Study gives for a flood with a 1 percent chance in any year. Freeboard is the extra height the town's ordinance adds above it. What gets measured to that elevation also differs from the beach. A riverine lot is likely to sit in an A, AE, AH, AO or A99 zone. There, the ordinance measures to the top of the lowest floor. On an oceanfront V-zone lot, it measures to the bottom of the lowest horizontal structural member. That measuring point decides how much usable ground floor a house on the river can have. Away from the river, in the wooded acreage of the ETJ, the more common questions are soils and drainage. On lots past the reach of town sewer, a septic system sized to what that particular ground will accept joins the list. The coast's physics argument is the version written for a barrier island. A wooded Shallotte acre trades the salt for standing humidity, and keeps most of the rest of the argument intact.

Windborne debris protection then layers its own logic on top of the base speed. The code keys that rule to distance from the ocean coastline, as much as to the wind number. The residential code's substituted definitions put a 140 mph site in Wind Zone 2, if it sits more than a mile from the coastline. A 150 mph site falls in the more demanding Wind Zone 3. So does any site within a mile of the coastline, measured from the mean high water mark. For a town this far up a tidal river, that mile decides between two sets of tested opening-protection products. They are specified at the drawing stage and priced accordingly.

The site analysis reads every Shallotte lot on its own terms.

R-15 Residential

minimum lot 15,000 sq ft, 75 ft width, 35 ft front yard, 10 ft side yard, 25 ft rear yard, 40 ft height cap (UDO Art. 11, Table of Dimensional Standards)

R-10 Residential

minimum lot 10,000 sq ft for single-family, 75 ft width, 30 ft front yard, 8 ft side yard, 20 ft rear yard, 40 ft height cap (UDO Art. 11)

Accessory structures

5 ft from the property line in residential districts, no taller than the primary structure, at most three on a lot under one acre (UDO Sec. 10-4(A))

Accessory dwelling

5 ft side and rear setback, one per property, floor area capped at 35% of the primary structure (UDO Sec. 10-4(B))

The site analysis is delivered as a document. It is filed in the client's private project workspace as the first entry in the project record. On Shallotte ground, it answers a different question depending on which of the town's four lot types it has been sent to read. A river-bluff lot and a wooded acre in the ETJ share a town, a builder, and a wind code. Past that, they have very little in common.

On a river-bluff or marsh-edge parcel, the analysis starts with elevation against the Article 23 flood mapping. It also checks whether the state's Division of Coastal Management classifies that stretch of the Shallotte River as coastal water. Where it does, the analysis checks whether the lot's shoreline falls inside an Area of Environmental Concern, or AEC. An AEC is an area the state regulates under CAMA. Where those rules do reach a parcel, the estuarine shoreline AEC runs 75 feet landward of the normal high water level. That reach can grow to 575 feet where the adjoining water is classified Outstanding Resource Waters. The coastal shoreline standard generally places new development 30 feet landward of the water. Exceptions apply for water-dependent uses, pile-supported structures, elevated boardwalks and decks, and certain older platted lots. That is a parcel-level fact, read off the specific shoreline with DEQ before a footprint is drawn anywhere near the bluff.

On a wooded acre back from the river, the questions shift toward the ground itself. They are soils and drainage, septic suitability where town sewer does not reach, and which trees are worth keeping for shade and screening. Orientation still matters, but it is solving for July sun across an open field. A separate article of the town ordinance sets landscaping, buffering, and heritage-tree-survey standards for development that needs site plan approval. A house of one to three units needs only a plot plan (Sec. 12-2(A)). So an ordinary single-family lot generally falls outside that trigger.

The R-15 and R-10 figures apply only to a lot actually zoned R-15 or R-10. Article 11's own footnotes add the practical edges the table leaves out. A porch, eave, or set of steps may project up to four feet into a required yard. A cul-de-sac lot's minimum width is measured at the building setback line. A corner lot keeps a sight triangle clear of anything between two and ten feet high near the intersection. The table above is a starting point. The Official Zoning Map settles the final answer for a particular address. What the numbers show, side by side, is how differently two residential districts in the same ordinance handle the same house. An R-15 lot buys more ground and deeper yards. An R-10 lot lets a smaller footprint sit closer to its lines. A site analysis reads the zoning district first, for that reason, before it reads anything else about the ground.

The standard holds the same nine miles up the river.

The wind map puts a town nine river miles above the Intracoastal Waterway over the same high-wind threshold as Oak Island or Holden Beach. Both of Shallotte's design speeds, 140 mph and 150 mph, already sit above the code's own threshold for engineered high-wind construction. Every project Tropical Tides designs pursues FORTIFIED Gold, whichever side of US 17 a lot falls on. Gold is the highest tier the Insurance Institute for Business & Home Safety offers. It covers the roof, the walls, the openings, and the continuous load path connecting them. A third party evaluates the work. On a Shallotte lot, the roof-edge detail and the connector schedule are doing structural work. That is true whether the house sits on a river bluff or a wooded acre a mile inland.

Airtightness makes the same argument from the other direction. The design target on every project is sub-1.0 ACH50. The blower door measures the real figure on the finished house. Until then, the number is only a projection in the drawings. An inland lot has every reason a beach lot has to want that number, plus one of its own. A wooded acre with no ocean breeze crossing it holds its humidity longer into the evening. A loose envelope is precisely how that air finds a cool surface inside a wall. Sub-1.0 ACH50 without a stuffy interior is written for that trade-off generally. A hot, still Shallotte summer with no surf to move the air is close to the worst case it describes.

Nine river miles inland keeps the high-wind rules, and adds a stiller August.

Right-sized mechanical equipment is what handles that stiller August. This far back from any sea breeze, it matters more. Without surf air moving across the lot, moisture is the harder half of the load to shed. A system sized only to the cooling number chills the rooms, without ever pulling that humidity down with them. That is why a well-shaded, tightly sealed house on a still inland acre calls for dedicated dehumidification alongside the conditioning equipment. Both are sized off the same load calculation as the rest of the house. Load-calculated mechanical design is what makes a stiller inland August comfortable in practice. FORTIFIED Gold stays pursued, with an independent evaluator checking the work. The airtightness figure stays a design target, tested by the blower door on the finished house. At an inland address, both are held to the same standard.

From Rivers Edge out to the beach towns

Rivers Edge Golf Club & Plantation sits along the Shallotte River, on the edge of town. It is an Arnold Palmer Signature Design course, with six of its eighteen holes set on bluffs above the water. A gated community surrounds it. Closer to downtown, the Riverwalk and Mulberry Park anchor the in-town side of the same river. The town's Mulberry Park expansion adds a kayak launch on the river.

The town's own footprint is only part of the picture. Its ETJ extends the same zoning and flood rules outward, before Brunswick County's own ordinance takes over. Several of the beach towns most people picture when they hear the county's name sit a short drive from the same Main Street crossroads.

• Building on Holden Beach sets the same 140/150 mph wind map against barrier-island exposure, straight down NC 130.
• Ocean Isle Beach and its inlet sit down NC 179 toward the coast, where elevation and dune line replace the questions a bluff lot asks.
• The town of Sunset Beach, toward the South Carolina line, has its own town ordinance, an island half and a mainland half.
• Calabash at the far end of the county is a fishing-village town with its own zoning and its own permit counter.

Shallotte's zoning and flood rules reach past the town limits, into its extraterritorial jurisdiction.

Across the county, every custom home gets the standard, the site analysis, and the client workspace. The ground runs from a river bluff in Shallotte to a canal lot on Oak Island to a dune-front parcel at Sunset Beach. A Shallotte project gets the full formal reading a beach project gets.

Tropical Tides is based in Southport. The drive to Shallotte is about 24 miles, roughly 35 minutes, on NC 211 to US 17 through Supply. Whichever of the four lots it turns out to be, construction is partner-executed under Tropical Tides' direction. The practice holds North Carolina Residential Contractor License #109520. It is a member of the Brunswick County Home Builders Association and answers at 910-946-5512.