Are there lot coverage limits that affect garage size in Quispamsis New Brunswick?

Yes, Quispamsis has lot coverage limits in its zoning by-law that directly affect how large a garage you can build on your property. Lot coverage is expressed as a percentage of your total lot area, and it includes the footprint of your house, any existing accessory buildings (sheds, workshops), decks, and your proposed garage. If adding a garage would push the total coverage beyond the permitted maximum for your zone, you will either need to reduce the garage size or apply for a variance.

In most residential zones in Quispamsis, the maximum lot coverage for all structures combined typically ranges from 35% to 45% of the total lot area, depending on the specific zoning designation. Some zones also set a separate maximum size for accessory buildings such as detached garages — for example, limiting accessory structures to a maximum footprint of 80 to 120 square metres (roughly 860 to 1,290 square feet). This means that even on a very large lot where overall coverage is not a concern, your detached garage may still be capped at a specific maximum size by the accessory building rules.

To calculate your available lot coverage for a garage, you need three numbers: your total lot area (from your property survey or assessment), the footprint of your existing house and any other structures already on the lot, and the maximum coverage percentage for your zone. For example, if your lot is 800 square metres and your zone allows 40% coverage, the maximum total building footprint is 320 square metres. If your house footprint is 140 square metres and you have a 20-square-metre shed, you have already used 160 square metres, leaving 160 square metres for a garage. That is ample room for even a large three-car garage. But on a smaller lot — say 500 square metres with a 150-square-metre house footprint — the math gets tighter, and you may be limited to a single-car or modest two-car garage.

Quispamsis is part of the Kennebecasis Valley and has experienced significant residential growth, which means the municipality pays close attention to zoning compliance. Before designing your garage, contact the Quispamsis planning and development department to confirm your lot's zoning designation, the applicable coverage percentage, any separate accessory building size limits, and the required setbacks from property lines. Bring your property survey or tax assessment to the conversation — the staff can quickly tell you exactly how much room you have to work with.

If lot coverage limits prevent you from building the garage size you want, you have a few options. First, consider whether any existing accessory structures (old sheds, small outbuildings) can be removed to free up coverage room. Second, explore whether a two-storey garage with a smaller footprint might meet your needs — a 24x24 garage with a loft provides the same vehicle storage as a single-storey structure while using less lot coverage, though it must still meet the height limit for your zone. Third, you can apply for a minor variance through the Committee of Adjustment if the overage is small and you can demonstrate that the larger garage will not negatively impact neighbouring properties. Variance applications typically cost $200 to $500 in application fees and take 4 to 8 weeks to process.

Keep in mind that lot coverage is just one of several constraints on garage size in Quispamsis. Your garage must also meet the minimum setback requirements from all property lines — typically 3 to 5 feet from side and rear lines for a detached garage — and the maximum height limit for accessory buildings. On narrower lots, setback requirements often end up being the limiting factor rather than lot coverage. A professional garage contractor experienced in building in the Quispamsis and Kennebecasis Valley area will be familiar with these local zoning requirements and can help you design the largest garage that fits within your lot's constraints. Need help finding a local garage builder? New Brunswick Garages can match you with contractors in the Quispamsis area for free.