Does the coastal protection zone in Shediac affect my ability to build a deck or addition on my waterfront cottage?

Yes, the Coastal Protection Zone absolutely affects what you can build near the water in Shediac — and getting this wrong can result in orders to demolish unpermitted structures, so it's worth understanding before you pick up a shovel.

New Brunswick's Coastal Areas Protection Policy (CAPP) and the Beaches Act (SNB 1992, c B-5.1) both apply to coastal properties in the Shediac area. The Northumberland Strait shoreline around Shediac, Shediac Cape, and Pointe-du-Chêne is considered a sensitive coastal zone, and the province takes setback requirements seriously here. The general rule under CAPP is a 30-metre setback from the high-water mark for most new development — but this isn't a hard universal number. Setbacks can be greater depending on erosion rates, dune systems, and the specific shoreline classification of your property.

For a deck addition on a waterfront cottage, the key questions are: How close is the existing structure to the high-water mark? Is the deck attached to the building (which makes it part of the structure) or freestanding? Attached decks that extend a building's footprint toward the water are treated as new development and must comply with current setback requirements — even if the cottage itself predates the policy. Freestanding decks or platforms near the water face similar scrutiny.

Your first call should be to RSC 7 — Southeast / Plan360, which handles building permits and development approvals for the rural and unincorporated areas around Shediac. Their number is (506) 533-3637. If your cottage is within the Town of Shediac's municipal boundary, contact the town directly to confirm whether they or the RSC handles your permit. Plan360 administers land use planning for the broader Shediac area and will tell you exactly what setback applies to your lot and whether a variance is possible.

You'll also want to check with the NB Department of Natural Resources and Energy Development (DNRED), which administers the Beaches Act and can flag whether your property falls within a designated beach area or protected dune system. Some Shediac-area properties sit on or near sand dunes that are provincially protected regardless of what a building permit says.

A few practical realities for Shediac waterfront: the Northumberland Strait coastline has documented erosion in several areas, and the province has been tightening enforcement of coastal setbacks over the past decade. If your cottage was built decades ago and is already close to the water, you may be dealing with a legal non-conforming structure — meaning the cottage itself is grandfathered, but any expansion toward the water won't be. An addition on the landward side of the cottage is a much easier approval path than anything that pushes toward the shore.

Given the coastal salt air environment around Shediac, if you do get approval for a deck, material selection matters. Pressure-treated lumber rated for ground contact (UC4B or better), composite decking, or aluminum framing will all outperform standard construction lumber in that marine environment. Stainless steel or hot-dipped galvanized fasteners are worth the extra cost — regular zinc screws corrode quickly near saltwater.

Budget-wise, a permitted deck addition on a waterfront cottage in the Shediac area typically runs $150–$250+ per square foot once you factor in coastal-grade materials, any required engineering (some RSC applications require a site plan or engineer's stamp), and permit fees. The permit application itself through Plan360/RSC 7 is generally modest, but don't skip it — unpermitted structures on coastal properties in NB can trigger provincial enforcement separate from the building permit process.

Browse licensed deck contractors and addition specialists in our directory at New Brunswick Construction Network — look for contractors with experience on waterfront properties who understand the coastal permitting process in the Shediac area.