Shared pier vs private pier on the Outer Banks

Most people come to this comparison expecting a cost question and discover it is actually a counting question, because the rules that matter here are written in boats, not dollars. A private pier under the CAMA general permit is built around a hard figure: General permit limit: two boats of docking space, with anything beyond that routed into the major permitting process. Two adjacent riparian owners who apply together get a different deal entirely — Shared piers: max 4 boats, with shared piers designed for no more than four boats, and a waiver of the 15-foot mutual setback along the line they share. The state is not neutral in this comparison; it is quietly on the side of sharing.

What the rules do not price is the part that actually decides whether a shared pier survives its first decade, which is the relationship between the two households on either end of it. So this page compares the two options twice — once as the permitting framework sees them, and once as the people living with them do.

The counting rule, which is where the comparison starts

The general permit authorizes docking space for no more than two boats, and the moment a facility proposes to dock more, the project leaves the general permit track for the major permitting process — a longer, costlier, more public path. The shared structure doubles the allowance: two adjacent owners applying together may design for up to four boats. For two households with one boat each, that doubling is rarely the motive — but for a family with a skiff, a kayak fleet, and a pontoon boat sharing a property line with a neighbor in the same position, the arithmetic is not theoretical. The shared pier holds what two private piers legally cannot, and no amount of good intentions changes the count.

The setback line that sharing dissolves

A private pier must hold 15-ft riparian setback between any part of the structure — the rule names boat lifts explicitly — and the adjacent owner's area of riparian access, unless that neighbor signs a written waiver. On narrow lots, that fifteen feet is the engineering constraint the whole pier is drawn around: it pushes the structure toward the middle of the parcel and, on the tightest lots, can make a legally placeable pier too short to reach depth. Co-applicant owners on a shared pier are exempt from that mutual waiver requirement along the shared riparian line — the line that would otherwise sit exactly between the two halves of the structure. Sharing does not merely relax the setback on this line; it removes it as a question, which is why shared piers on narrow sound-side lots so often reach water a private pier on either parcel could not.

One application, one alignment, one permit file

The process side of sharing is a single project rather than two parallel ones. The shared pier is one alignment for the Division to review, one set of adjacent-owner notices going out — still required for the owners beyond the two sharing — one on-site meeting, one 120-day construction clock, one authorization in the file. The two private piers are two of everything, including two chances for the neighbors on either end of the pair to object to what amounts to the same structure built twice. Where the households genuinely intend to build toward the same water anyway, the shared application is less process for more structure, which is a rare sentence in coastal permitting and worth appreciating when true.

The costs, which we will structure honestly

No public authority publishes installed pier prices for this market, so we compare the two options by structure rather than by number, and the structure is plain: one pier costs roughly half of two piers, and the shared pier's pilings, decking, wiring, and lift machinery are one set of costs split two ways rather than two sets duplicated. The catch is that 'split two ways' is a phrase that only exists in a written agreement — without one, there is no mechanism at all, and the savings become a slow argument about who paid for the last board. We will not print a range here; we will say that whatever the number is, the agreement that divides it is worth more than the number, and it costs a fraction of a single piling to get right.

The relationship, which the rules ignore entirely

Now the axis no permit reviewer weighs. A shared pier is a permanent business arrangement with the person who owns the lot next door: joint maintenance, joint decisions about repairs and upgrades, joint exposure when a storm damages the structure, and a joint question the first time one household sells. Every point in the shared column above — the boats, the waived setback, the single application — is real, and every one of them is downstream of the fact that you and your neighbor now own something together that neither of you can move. Written agreement, yes; separate maintenance funds, yes; a buyout clause for the day one house changes hands, absolutely. The private pier buys its owner one thing the shared pier never can, and it is not measured in boats — it is the ability to make every decision about your own dock alone.

Who each one actually suits

The private pier is the right answer for the household that values unilateral control, has the frontage and the setback room to build it, and carries one or two boats — which is most sound-side owners, and why most piers on this coast are private. The shared pier is the right answer for two households who already get along, whose lots are narrow enough that the 15-foot setback bites hard on both sides, and who want more dock than either parcel could legally hold alone — siblings sharing a family parcel, neighbors with kids on the same kayak schedule, the two houses that always fished off the same stretch of water anyway. The decision is made by the people at least as much as by the parcels, and pretending otherwise is how shared piers become shared lawsuits.

The rules pay you four boats and a dissolved setback to share a pier with the neighbor; the people next door decide whether that payment is a bargain. If the two households can write one agreement they would both still honor ten years from now, share. If they cannot, build private and wave across the water.