Custom home builder in Wrightsville Beach, North Carolina.

There is only one way onto either island from the mainland.

Wrightsville Beach was incorporated in 1899, and the beach island it sits on runs roughly four miles from Masonboro Inlet at the south end to Mason Inlet at the north, with Masonboro Island beyond one inlet and Figure Eight Island beyond the other. Harbor Island, the town's sound-side half, sits across Banks Channel from the beach and reaches it over its own causeway bridges: Causeway Drive carries US 76 across Banks Channel onto the beach island's commercial foot, and West Salisbury Street carries US 74 across both Lees Cut and Banks Channel a few blocks north. Getting to Harbor Island in the first place takes the Heide Trask drawbridge, which carries US 74/76 over the Atlantic Intracoastal Waterway and is the one crossing every resident, delivery truck and building inspector shares. A federal drawbridge-operation regulation governs when that bridge has to open for vessel traffic on the waterway underneath it, so a job site schedule here answers to boat traffic as much as to daylight.

Lumina Avenue runs the length of the strand, and the cottage stock along and behind it goes back generations in places. The town keeps a Historic Landmark Commission empowered to investigate and report on proposed landmark designations, which is a narrower thing than a blanket historic district: whatever status a particular cottage carries, if it carries one, is best established by asking the town. Johnnie Mercer's Pier and Crystal Pier fix the ocean side, and the Wrightsville Beach Museum of History occupies the Myers Cottage on the town's Historic Square, a nonprofit holding the town's own account of its past.

Four lot conditions repeat across these two islands, and each one leads with a different question:

• Oceanfront lots along the strand, much of that frontage within CAMA's ocean hazard area and, on the flood map, inside Zone VE or the Coastal A Zone behind it
• Banks Channel and Motts Channel waterfront lots, many with a bulkhead and a dock, where CAMA's estuarine shoreline rules apply, a different program from the ocean-hazard rules on the strand
• Harbor Island canal and interior lots, sound-side ground with its own access, its own flood mix, and no ocean wave exposure
• Lees Cut frontage, the narrow waterway between Harbor Island and the mainland, with its own access and drainage questions

What the four kinds share is exposure. This is a narrow island chain, and no lot on it sits far enough from salt water to be treated as inland. Airborne chloride reaches Harbor Island's canals as surely as it reaches the dune line, and a fastener, a connector or a condensing unit specified for an interior lot somewhere else on the coast is undersized for anything built here. Both islands are on public water and sewer: the Cape Fear Public Utility Authority became the utility of record for the town's water and sewer system on September 30, 2025, so there's no well-and-septic scope on either island. A Wrightsville Beach site read spends that time on three other things: the flood zone, the CAMA line, and the envelope the district has already drawn around the lot.

Wrightsville Beach measures its forty-foot cap from the street.

Wrightsville Beach is an incorporated town wholly inside New Hanover County, and inside town limits the town's own code governs: its zoning chapter sets the districts, the dimensional standards and the flood rules for every lot. The county's Unified Development Ordinance applies instead in unincorporated places nearby such as Ogden or Masonboro.

Review runs through more than one office. The town's ordinance appoints the Director of Planning as Floodplain Administrator, with responsibility for administering the flood damage prevention article and for the town's standing in the National Flood Insurance Program. Rezonings, special uses and Shore Zone permission go to the Planning Board and, ultimately, the Board of Aldermen. Day-to-day zoning and building permits run through the town's Planning & Inspections Department at 321 Causeway Drive. CAMA itself is administered by the NC Department of Environmental Quality's Division of Coastal Management, which the town's own code names as the managing agency for coastal permitting. The town is on the Division's list of local governments with their own CAMA Local Permit Officers, so a CAMA minor permit is handled in town; a major permit goes to the Division.

Jurisdiction

Town of Wrightsville Beach, wholly within New Hanover County: zones and permits its own lots under the town Code of Ordinances

Adopted code

Chapter 155 (zoning, including Article 155.11, Flood Damage Prevention); Ord. 1780 of 2018, amended by Ord. 1838 of 2022; published by American Legal Publishing

Who reviews

Director of Planning, appointed as Floodplain Administrator (§155.11.12); Planning Board and Board of Aldermen for rezonings, special uses and Shore Zone permission; Planning & Inspections Department for zoning and building permits

Building height

40 ft in R-1 and R-2 (Sec. 155.6.5), measured from the center line of the street in front of the lot to the roof ridge, the coping of a flat roof, or the top of a roof deck or its handrail (the code's definition of building height)

Flood maps

FEMA Flood Map Service Center and the NC Flood Risk Information System, read for the specific parcel

Ultimate design wind speed

150 mph east of US 17 (2018 NC Residential Code, Table R301.2(4), footnote h, New Hanover County)

The zoning chapter carries more districts than the two that cover most residential lots. Alongside R-1 and R-2 sit a Private Club district, five commercial districts, a Public and Semipublic district, a Conservation Zone and a Shore Zone. The Conservation Zone permits little beyond piers (commercial ones where it adjoins a marina zone, private ones where it adjoins residential), together with town-owned docks and parking, town recreational facilities, stormwater-mitigation structures and ocean-related business uses; clearing vegetation there is prohibited outside a short list of exceptions. The Shore Zone, largely ground built up by the state, the federal government or the town itself, caps fences at three feet, bars vehicular parking except on government-owned property, permits no increase in impervious surface, and requires Board of Aldermen permission before anything is built on it at all. On an island this narrow, both of these districts border residential ground closely enough that a neighboring site analysis has to know where the line falls.

In the R-1 district the code sets a residential minimum of 8,000 square feet of lot area, seventy feet of width, no minimum depth, and front, side and rear setbacks of fifteen feet each, under a forty-foot cap on principal building height from which spires, antennas and chimneys are exempt. The town measures that forty feet from the center line of the street in front of the lot, at the point midway between the side lot lines, up to the roof ridge, the coping of a flat roof, or the top of a roof deck or its handrail. R-2 asks the same 8,000 square feet for one dwelling or a duplex, adds 4,356 square feet of lot area for every unit beyond two, and widens its fifteen-foot side yard by another fifteen feet for each additional fifty feet of frontage. Both stop at forty feet. R-2 also drops to 4,000 square feet of lot area for a duplex on a nonconforming lot, since much of the island was platted before those minimums existed; Planning & Inspections says how the code treats a specific nonconforming parcel. Which district a parcel sits in, whether it conforms, and what the flood article layers on top are read directly off the town's zoning map and the current flood panel, parcel by parcel.

The strand and Harbor Island sit in different flood zones.

Both islands start from the same wind zone. Table R301.2(4) of the 2018 NC Residential Code splits New Hanover County at US 17 (a 140 mph ultimate design wind speed zone west of the highway, 150 mph east of it), and all of Wrightsville Beach lies east. The designer of record confirms the figure for the build. Exposure category, which depends on what stands between a particular lot and open water, and the flood answer, which depends on which shoreline that lot faces, are the two variables the table leaves open, and both are read parcel by parcel.

Flood zone is where the two islands diverge. Much of the ocean-facing strand sits inside Zone VE, the coastal high hazard area, where the ordinance requires new construction to stand landward of the reach of mean high tide, meet every applicable CAMA setback, and elevate the bottom of the lowest horizontal structural member (excluding pilings or columns) no lower than the town's regulatory flood protection elevation, with floodproofing ruled out as a substitute for elevation. Landward of that, the ordinance defines a Coastal A Zone: still inside the special flood hazard area, with wave heights of a foot and a half or more expected in the base flood. On the map itself, what shows is the Limit of Moderate Wave Action (LiMWA) line; the Coastal A Zone is the band between it and the VE zone, and it is usually not labeled as a zone on the map at all, so a lot a block back from the visible V-zone band can sit in wave territory with nothing on the map to name it as such. Harbor Island and many Banks Channel and Motts Channel lots carry an AE designation instead: inside the flood hazard area, outside the coastal high hazard section, and answering to the ordinance's general elevation requirements. Wherever a base flood elevation has been established, the town's regulatory flood protection elevation is that figure plus two feet of freeboard; where none has been established, it is at least two feet above the highest adjacent grade. That freeboard is the town's own addition, and on a narrow lot it is two feet spent before the first floor exists.

Zone VE (much of the ocean strand)

lowest horizontal structural member (excluding pilings) at or above the regulatory flood protection elevation; no floodproofing; space below kept free of obstruction; must meet applicable CAMA setbacks

Coastal A Zone (landward of VE where mapped)

wave heights of 1.5 ft or more expected in the base flood; not normally shown on the FIRM itself, marked instead by the Limit of Moderate Wave Action line

Zone AE (many Harbor Island and channel lots)

inside the special flood hazard area but outside the coastal high hazard section; the regulatory flood protection elevation still governs: BFE plus two feet of freeboard, or two feet above highest adjacent grade where no BFE has been set

Estuarine / Public Trust Shoreline AEC (Banks Channel, Motts Channel, Lees Cut)

governed by CAMA's estuarine shoreline rules, a different program from the ocean-hazard rules on the strand; the specific setback width is a parcel-level question for the Division of Coastal Management

The two inlets that bracket the town are the reason the strand does not behave as one shoreline. Masonboro Inlet, at the south end, is jettied and has held roughly its position; Mason Inlet, at the north end, was relocated about 2,800 feet north in early 2002 after its natural southerly migration began to threaten development near Shell Island, and has been managed and monitored since. A strand with one end fixed by rock and the other end physically moved carries a different erosion figure at each stretch, from the Coast Guard station to Shell Island. Any nourishment history a particular stretch carries, and the long-term shoreline change rate at a specific address, are matters to confirm with the town and the NC Division of Coastal Management before a design leans on either.

CAMA layers its own setback on top of the flood rules along the ocean, and what the state publishes is a formula. For a structure under 5,000 square feet the oceanfront construction setback is thirty times the location's erosion-rate setback factor, or sixty feet, whichever is greater; the multiplier and the minimum both climb as the building gets larger. A default factor of two applies where the shoreline is accreting or eroding more slowly than two feet a year. The factors themselves rest on long-term averages measured over fifty years and more, the Coastal Resources Commission approved the current set in February 2019, and an update is pending, so the figure a lot carries is live, and it is read off the Division of Coastal Management's own data together with the reference line it gets measured from. On the sound side, Banks Channel, Motts Channel and Lees Cut answer to CAMA's estuarine and public trust shoreline rules instead: a different program with a different setback logic, a distance the Division of Coastal Management confirms parcel by parcel. Built to the physics of the coast is the longer argument for why an ocean wall and a channel wall on the same house are two design problems.

Two islands, one code, and a flood answer that changes with the shoreline a lot faces.

On a built-out island, the setbacks draw most of the house.

On a built-out island the buildable volume is largely settled before a pencil touches paper. Fifteen feet off each side of a seventy-foot-wide R-1 lot leaves forty feet of width to design in. The forty-foot height cap, measured up from the center line of the street out front, closes the top. The regulatory flood protection elevation sets the floor, two feet above the base flood elevation where one has been established. What is left is a box, and the Wrightsville Beach site read begins by drawing that box exactly, including where an older nonconforming lot narrows it further, before a single option is drawn against it. The exercise differs between the islands: an interior Harbor Island lot may carry no CAMA setback at all, while a strand lot has the oceanfront line and the flood elevation cutting into one footprint from two directions at once.

View corridors are read the same way. With fifteen-foot side yards on both R-1 and R-2, two houses can stand thirty feet apart, and a view toward Banks Channel or the Atlantic has to thread that actual gap. The analysis walks the lot at more than one hour of the day to find where a sightline survives between the buildings already standing on either side, because a rendering drawn against an imagined corridor and a house built against the real one rarely agree. Sun works the same way. Which wall takes the morning and which takes the long afternoon depends on how the lot sits on its block, and on a street where houses face each other across thirty feet, a neighbor's roofline is part of the shading study.

On any waterfront lot (Banks Channel, Motts Channel, Lees Cut or a Harbor Island canal), the analysis also reads the bulkhead and, where one exists, the dock. Their age and condition bear on what a foundation set back from them can do, and a design that ignores a tired bulkhead gets revised once permit review reaches it. On an elevated strand lot the analysis works out what belongs underneath the house as well. In Zone VE the ordinance requires the space below the lowest horizontal structural member to stay free of obstruction and rules out floodproofing as a substitute for elevation, so the ground floor of an oceanfront house is a regulated part of the design from the first sketch.

The document is written and delivered before design begins, it goes into the client's project workspace, and it's the first thing measured against the standard the practice works to. That matters more on a constrained lot than on open acreage, because every decision downstream (the foundation type, where the glass goes and where it deliberately doesn't, how the massing steps back from a shared setback line) has to trace to something the parcel itself showed. If a Wrightsville Beach lot is still a listing, the reading is most useful before the purchase, since almost nothing about this envelope is negotiable once the deed is signed.

A tall, narrow house needs every connection drawn.

Custom homes in Wrightsville Beach tend to be tall and narrow (forty feet of buildable width on a seventy-foot R-1 lot, often on an elevated foundation), and that geometry is exactly where a continuous load path matters most: every connection from the roof deck through the wall framing, across each floor system and down into the piles has to be drawn and inspected. FORTIFIED Gold, the highest tier of the Insurance Institute for Business & Home Safety's construction standard, is the target pursued here and confirmed by third-party verification. A house that gains its square footage by stacking has more of those connections per square foot, which is where a third-party evaluator earns its place.

Airtightness is the other half of the standard. The design target carried from the drawings into construction is under 1.0 ACH50, and the number stays a target on the documents until a blower door confirms it once the envelope is closed. What makes it harder to reach here than on a sheltered inland lot is geometry as much as climate. A house on this island has salt air on the windward side, a channel or a canal behind it, and a neighbor fifteen feet off whichever walls are left; there is no quiet face to lean on. The continuous air barrier has to be traced across every wall, every floor-to-wall transition and every penetration through an elevated deck, on a structure that takes pressure from more than one direction in the same storm. Sub-1.0 ACH50 is the number that says the tracing actually held.

Opening protection follows from the same reading. On the blocks where the beach island is narrow enough that a lot runs from the strand toward Banks Channel, the window and door protection has to be drawn for both exposures: two weather elevations on one house. Ventilation and dehumidification are then sized to the real load of that envelope, because an oversized system in a tight, exposed house satisfies the thermostat while never running long enough to pull water out of the air. Sub-1.0 ACH50 without stuffy interiors works through that trade.

Durability is then specified for salt on every wall. Fasteners, railings, hurricane connectors and the condensing unit on a Harbor Island canal lot all meet airborne chloride on an island too narrow to treat any of them as inland hardware, and why durability is a specification here is the reason those choices are made at the drawing stage: a decision written into the documents has to be argued with before it can be changed, while a decision left to procurement simply disappears at bidding. FORTIFIED Gold verification and the sub-1.0 ACH50 blower-door result both happen after design is finished, checked against a target written into the documents before the first stud goes up.

FORTIFIED Gold and sub-1.0 ACH50 are the baseline here: a house with weather on every side has no wall to spare on the load path.

New construction in Wrightsville Beach usually follows a teardown.

New construction in Wrightsville Beach usually means replacing an existing house on an already-platted lot. A cottage or a mid-century house comes down, and what goes up answers to a district it never existed under, a flood elevation it was never designed to, and, along much of the strand, a CAMA setback measured from a reference line the original house predates. Each of those constraints is common on this coast on its own. What makes a Wrightsville Beach lot its own problem is satisfying all of them at once inside a footprint the setbacks and the height cap have already narrowed.

Renovating a coastal house without undoing it runs into the flood article's substantial-improvement test before it runs into anything else. The ordinance defines Substantial Improvement, at §155.11.4.1, as any combination of repairs, reconstruction, rehabilitation or addition taken together over any one-year period whose cost equals or exceeds 50% of the structure's market value (the building alone, excluding the land under it and any accessory structure), measured before the work starts; a structure that has taken that much damage in a single event is measured the same way. Cross that line and the town's current regulatory flood protection elevation applies to the whole building, well beyond the room being opened up. On a Harbor Island house sitting at an older elevation, that can turn a renovation into a lift: the structure raised, the foundation rebuilt beneath it, and the ground floor rethought around what the flood article permits below the new lowest floor. The Floodplain Administrator applies that 50 percent test to a specific appraisal and a specific scope, which is the office to call before a renovation budget hardens, since landing just under the threshold or just over it makes two different projects. An alteration to a historic structure is exempt from the test when it won't cost the structure its historic designation and the town approves it by variance, so a landmark-eligible cottage on these blocks starts its renovation conversation with the town's Historic Landmark Commission as well as the Floodplain Administrator.

Whether an ADU is feasible at all on a Wrightsville Beach lot has a narrower answer than the zoning chapter's general language suggests. The town's Table of Permitted/Special Uses, §155.6.4, lists 'Residence, single-family' as a permitted use with supplemental regulations in both R-1 and R-2, and 'Residence, duplex' the same way in R-2 only; it carries no separate accessory-dwelling-unit, guest-house or accessory-apartment category for either residential district. 'Tourist or guest homes, including bed and breakfast' do appear on the same table, but only as a conditional-zoning use in the commercial districts; R-1 and R-2 carry no such category. What the two residential districts do allow is a size cap on accessory buildings in general: ten feet by ten by twelve and a half for most accessory structures and ten by twenty by fourteen for a detached garage, sited at least fifteen feet from any lot line and behind the rear building line. Those dimensions are sized for storage and a car. Planning & Inspections reads a specific idea, such as a garage apartment or a carriage house over parking, against that adopted table of uses before a design assumes an answer.

Two more town rules reach a lot before construction. Disturbing a dune, or the trees and vegetation east of the Shore Line Development Boundary, calls for its own zoning permit and mitigation plan from the Planning and Inspections Department (§155.11.33), on top of any CAMA permitting the same work needs. Removing a protected tree anywhere in town calls for a separate tree removal permit from the UDO Administrator, and the code prices the consequence of skipping it: replacement at a one-to-one ratio for an ordinary protected tree, two-to-one for a specimen tree, plus a $500 civil penalty per tree removed without a permit, or $1,000 for a specimen tree (§155.9.26).

The two inlets have shaped each end of the strand differently.

The South End sits near Masonboro Inlet and the Coast Guard station associated with that part of the island. It's the end of the strand closest to the jetty, and a site analysis there spends the most time on the inlet: a jettied inlet holds sand and moves water differently from open beach, and the difference shows up within a few blocks. Masonboro Island lies across the inlet, outside the town.

The central blocks along Lumina Avenue carry the town's older grid and much of its cottage stock, with Johnnie Mercer's Pier and Crystal Pier as fixed points along the strand and the Museum of History a few blocks off the water on the Historic Square. A replacement house here often stands in for a cottage with local memory attached, and the Historic Landmark Commission may enter the conversation.

Harbor Island and Lees Cut make up the sound-side half of town, set apart from the beach island by Banks Channel and reached by causeway. Lots here trade ocean exposure for canal and interior conditions: an AE designation more often than VE, a bulkhead and a dock to read instead of a dune line, and CAMA's estuarine shoreline program in place of the ocean-hazard setback. The salt stays the same. Across the water is the city of Wilmington, and down the sound to the southwest, Masonboro, much of it outside Wilmington's city limits, answers to New Hanover County's Unified Development Ordinance.

The north end runs toward Mason Inlet and Shell Island, ground reshaped when the inlet was relocated north in 2002 to hold off the migration that had begun to threaten development at that end of town. That is unusually recent history for a shoreline, and it is a reason to read the north end's erosion data as its own. Beyond the inlet sits Figure Eight Island, and inland along the same corridor lies unincorporated Ogden, where the barrier-island questions give way to county zoning and an entirely different site read. A project inside Wrightsville Beach itself gets its flood answer from the shoreline it faces, its buildable box from the district that contains it, and everything else from what the site analysis turns up before a line is drawn.

Construction on either island is directed by us and carried out by vetted building partners, under North Carolina Residential Contractor License #109520. Call 910-946-5512; we're members of the Brunswick County Home Builders Association.