What are the actual rules for building a secondary suite in Fredericton now that the province is pushing more rental housing?

Fredericton allows secondary suites in most residential zones under their updated zoning bylaw, making it one of the more permissive municipalities in New Brunswick for adding rental units. The city has been actively encouraging secondary suite development as part of addressing the housing shortage.

Current Fredericton Zoning Rules
Secondary suites are permitted in single-family homes in most R1, R2, and R3 residential zones. The suite can be in the basement, main floor, or upper level of the existing home. You'll need a development permit from the City of Fredericton Development Services department (506-460-2020) before starting construction. The permit process typically takes 4-6 weeks and costs around $200-$400 depending on the scope.

National Building Code Requirements
Since NBC 2020 takes effect May 1, 2025 for new applications, your secondary suite must meet current code standards. This includes a separate entrance (can share a common foyer), fire separation between units with minimum 45-minute fire rating, egress windows in all bedrooms (minimum 3.77 sq ft opening, maximum 44" sill height), and interconnected smoke and carbon monoxide alarms throughout both units. Ceiling height must be at least 1.95m (6'5") in habitable rooms.

Practical Construction Considerations
Most Fredericton homes built in the 1970s-90s will need significant work to meet fire separation requirements. This means fire-rated drywall on walls and ceilings between units, proper sealing of penetrations, and potentially separate heating systems or fire-rated ductwork. Basement suites often require window well enlargement for proper egress - budget $3,000-$6,000 per window well in Fredericton's clay soils.

Electrical and Plumbing Permits
You'll need separate permits for trades work. NB Power electrical wiring permit (1-800-615-0522) is required since you'll likely exceed 10 outlets. A licensed electrician must install separate electrical panels or subpanels for each unit. Plumbing permits come from TIS (1-888-659-3222) for any new bathroom or kitchen rough-in. If adding a kitchen, you may need to upgrade your main electrical service to 200 amps.

Costs and Timeline
Basic basement secondary suite conversions in Fredericton typically run $35,000-$65,000 for a one-bedroom unit, $50,000-$85,000 for two bedrooms. This includes framing, fire separation, new bathroom, kitchenette, flooring, and permits. Add $15,000-$25,000 if you need foundation work for egress windows or significant electrical upgrades. The work typically takes 8-12 weeks once permits are approved.

Your Next Step
Contact Fredericton Development Services first to confirm your property's zoning and discuss your specific plans. They can tell you exactly what's required for your home and neighborhood. The city has been streamlining the process, so it's worth having that conversation early to understand the full scope before getting contractor quotes.