What are the setback requirements for concrete structures in NB?

Setback requirements for concrete structures in New Brunswick are set by municipal zoning bylaws, not the NB Building Code itself — so the specific distances vary by municipality, zone, and structure type. There is no single provincial setback rule that applies everywhere; you must check with your local planning or building department for your specific property and project.

That said, there are general patterns that apply across most NB municipalities for common concrete structures. For residential driveways and patios, most municipalities require a minimum setback of 0.6-1.2 metres (2-4 feet) from side property lines. This allows access to the utility corridor along the side yard and prevents disputes with neighbours. Front yard setbacks for driveways are tied to the driveway approach permit process — the approach must connect at the approved curb cut location.

For retaining walls, side and rear setbacks of at least 0.6-1.2 metres (2-4 feet) are typical, and taller walls may require greater setbacks. Retaining walls on corner lots face additional restrictions related to traffic sight lines. Front yard retaining walls near the street right-of-way often require pre-approval.

Concrete sheds, garages, and outbuilding slabs follow accessory structure rules, which vary considerably. In Moncton, Saint John, and Fredericton, most accessory structures require at least 1.2 metres (4 feet) from rear and side property lines. Some municipalities allow structures to be built closer to the property line if the wall on that side is a firewall (no openings), but this applies to the structure, not just the slab.

For foundations and new homes, the principal building setbacks in residential zones across NB typically run: front yard 6-7.5 metres (20-25 feet) from the street right-of-way, side yard 1.2-2 metres (4-7 feet) per side, and rear yard 7.5 metres (25 feet). These are minimum distances and your property's specific zoning category and lot size will determine the actual requirements.

A few practical points for NB: first, always measure setbacks from the property line, not from the road surface or curb — the road right-of-way may extend several feet onto what looks like your front yard. Second, easements (utility, drainage, or access) on your property can further restrict where you can build even within setback requirements. Third, unincorporated rural areas of NB fall under Regional Service Commission zoning, which may have different rules from nearby municipalities.

The fastest way to confirm setbacks for your project is to call your local building or planning department with your civic address. For properties in Moncton, Dieppe, Riverview, Fredericton, Saint John, Miramichi, or Bathurst, the municipal websites also often have zoning maps and bylaw information available online. New Brunswick Concrete can connect you with local contractors who know their municipalities' setback rules well.