Secondary suite Halifax: understanding secondary suites and backyard suites in HRM
In Halifax and HRM, the term "secondary suite" can mean different things depending on context. This page explains what secondary suites are, how they differ from backyard suites, and what the HRM rules say about each — so you can plan the right type of additional unit for your property.
In HRM's planning documents, a secondary suite typically refers to a self-contained residential unit that is contained within or attached to the primary home — such as a basement suite, a converted garage, or an attached addition with a separate entrance.
A backyard suite (also called a garden suite or ADU) is a fully detached structure in the backyard. Both are forms of accessory dwelling unit, but HRM's Land Use By-law treats them as distinct unit types.
In everyday usage, Halifax homeowners often use "secondary suite" as a general term for any additional unit on a residential property, regardless of whether it is attached or detached.
Secondary suite vs. backyard suite in HRM
Secondary suite
Inside or attached to the main house. Separate entrance. Self-contained kitchen and bathroom. Common examples: basement suite, above-garage suite, attached in-law apartment.
Backyard suite
Separate, detached structure on the same lot. Its own foundation, utilities, entrance. Also called a garden suite, ADU, in-law suite, or granny suite.
In Halifax, you may generally have either one secondary suite or one backyard suite on a residential property — not both at the same time. Confirm with HRM for your specific property and zoning.
What Garden Born Homes builds
Garden Born Homes specializes in detached backyard suites — fully separate structures built on the same lot as the main home. These are what HRM refers to as backyard suites, and what homeowners often call garden suites, in-law suites, granny suites, or ADUs.
A detached backyard suite offers more independence for the occupant (whether a renter, aging parent, or adult child) than an attached secondary suite because there is no shared wall, no shared entrance, and no sound transmission through connected structure. It also allows more design flexibility in layout and orientation.
If you are weighing between a detached backyard suite and an attached secondary suite, a consultation can help you understand which type your property can realistically support and which better fits your goals.
Planning a secondary or backyard suite in Halifax
Both secondary suites and backyard suites in Halifax require municipal planning approval and a building permit. The path depends on the property's zoning, the type of unit, and current HRM policies.
Key questions that affect what type of suite is possible on a given property:
Does the main house have suitable space for an attached secondary suite, or is the backyard the better option?
Is the lot large enough to support a detached structure while meeting setback requirements?
Can the existing services (water, sewer, electrical) support a second unit?
Is the property inside or outside the HRM Regional Centre — which affects backyard suite footprint limits?
Whether a homeowner is planning an attached suite or a detached backyard suite, the most important thing before any commitment is a clear cost picture built from the actual site — not from a generic estimate that may not hold for their property.
Garden Born Homes uses a cost-plus approach with pass-through billing: materials, trades, and suppliers are charged at actual cost with invoices available. The builder fee is stated separately. This makes it easier to trust the numbers and make good decisions when tradeoffs come up.
Grants for secondary suites and backyard suites in Halifax
Eligible HRM homeowners may qualify for up to $45,000 in grants and incentives for a secondary or backyard suite. Programs include the HRM Secondary Unit Incentive Grant (up to $13,000), the Federal Multigenerational Home Renovation Tax Credit (up to $7,250), and Efficiency NS EnergyForward incentives. Eligibility conditions apply.
Not sure which type of suite is right for your property?
A consultation helps clarify what is realistic. We review the site and help you understand whether a secondary suite, backyard suite, or some other configuration makes the most sense.
