What are the accessibility requirements for a garage conversion rental unit in NB?

Converting a garage to a rental unit in New Brunswick requires full compliance with accessibility standards under the National Building Code as adopted by NB, which includes barrier-free design requirements for new residential units. This is a complex conversion that goes far beyond basic garage renovation and creates legal obligations as a landlord.

Barrier-Free Design Requirements

All new residential units in NB must meet barrier-free design standards, which means your garage conversion must include accessible features from the outset. The main entrance must have a maximum threshold of 13mm (1/2 inch) and be at least 850mm (33.5 inches) wide. If there's a level change at the entrance, you'll need a ramp with a maximum slope of 1:20 (5%) for the first 3 metres, then 1:12 (8.3%) beyond that. The ramp must be at least 1100mm (43 inches) wide with handrails on both sides if the rise exceeds 150mm (6 inches).

Interior doorways must be minimum 810mm (32 inches) clear width when the door is open 90 degrees. Hallways and corridors require 1070mm (42 inches) minimum width. At least one bathroom must be fully accessible with a 1500mm (59 inch) diameter turning circle, grab bars around the toilet and in the shower/tub area, and accessible fixtures. The toilet centreline must be 460mm (18 inches) from the nearest wall, and there must be 760mm (30 inches) clear space in front of the toilet.

Kitchen accessibility requirements include at least 1070mm (42 inches) of clear floor space in front of cabinets and appliances, with a 1500mm (59 inch) diameter turning space somewhere in the kitchen. Counter heights should accommodate wheelchair users, typically 32-34 inches rather than the standard 36 inches.

Building Code Compliance for Rental Units

Fire separation and egress are critical life-safety requirements. Every bedroom must have either a door directly to the outside or a window that meets egress requirements — minimum 3.8 square feet of opening area, minimum 15 inches wide, minimum 24 inches high, and maximum sill height of 44 inches above the floor. Smoke alarms are required in every bedroom and hallway, interconnected and hardwired with battery backup.

Ceiling height must be minimum 7.5 feet (2.3 metres) throughout the living areas. Many garage conversions struggle with this requirement because garage slabs are often lower than house floor levels, and adding insulation to the ceiling reduces headroom further. You may need to excavate and lower the slab or raise the roof structure to achieve code-compliant ceiling heights.

The unit requires independent HVAC, electrical service, and plumbing systems. You'll need a separate electrical panel or large sub-panel, dedicated heating and cooling (heat pump systems are popular for garage conversions), and complete plumbing rough-in for kitchen and bathroom. All mechanical, electrical, and plumbing work requires permits and inspections by licensed trades.

Zoning and Municipal Approvals

Check your municipal zoning before starting design work — many NB municipalities restrict accessory dwelling units (ADUs) or secondary suites. Some require conditional use permits, others prohibit them entirely in certain zones. Parking requirements often increase when you convert a garage to living space — you may need to provide replacement parking spaces on your property.

Setback requirements may change when a structure converts from accessory use (garage) to residential use. The converted unit may need to meet more restrictive setbacks than the original garage, potentially requiring variances or making the conversion impossible on smaller lots.

Landlord-Tenant Obligations

Converting a garage creates legal obligations under the NB Residential Tenancies Act. You become subject to rent control, security deposit limits, eviction procedures, and maintenance standards. The unit must meet minimum housing standards including adequate heating (minimum 21°C in living areas), hot water, weatherproofing, and pest control.

Accessibility modifications may be required during tenancy if a tenant requests reasonable accommodations under human rights legislation. While you're not required to make every possible modification, you must consider reasonable requests that don't cause undue hardship.

Professional Requirements

Hire an architect or building designer experienced with accessible design to ensure your conversion meets all barrier-free requirements from the planning stage. Retrofitting accessibility features after construction is far more expensive than incorporating them initially. A structural engineer may be required if you're removing or modifying garage door openings, adding load-bearing walls, or if the existing foundation needs modification for accessibility ramps.

All electrical, plumbing, and HVAC work requires licensed professionals and separate permits. The complexity of creating an independent living unit typically costs $45,000-$75,000 for a basic one-bedroom conversion, with accessibility features adding $8,000-$15,000 to the total.

Need help finding professionals experienced with accessible garage conversions? New Brunswick Garages can match you with contractors familiar with barrier-free design requirements through the New Brunswick Construction Network.