Granny Flats & Dual Occupancy
Adding a second dwelling in the Northern Rivers NSW — granny flats and dual occupancy, the NSW approval pathways, site considerations and how they differ.
Adding a second dwelling to your property is increasingly popular — for family, for rental income, or to get more from a block you already own. In NSW there are two main routes: a secondary dwelling (commonly called a granny flat) or a dual occupancy. They sound similar but differ in important ways.
This guide explains the difference and what to consider before adding a second home on your Northern Rivers block.
Secondary dwellings (granny flats)
A secondary dwelling is a self-contained home on the same lot as the main house, sharing the title. Under NSW State policy, secondary dwellings within set size and siting limits can often be approved as Complying Development, which is a relatively streamlined pathway on a suitable lot. They suit family accommodation or a single rental, but they stay tied to the main dwelling on one title and cannot be sold separately.
Dual occupancy
A dual occupancy is two dwellings on one lot — either attached or detached — and, depending on zoning and council controls, the lot may be able to be subdivided so each can be sold or titled separately. That makes it a different proposition to a granny flat, with more scope but also more involved planning, and it more often follows a Development Application pathway. Which option suits you depends on your zoning, lot size, the council controls and what you want to achieve.
Questions
- What is the difference between a granny flat and a dual occupancy?
- A granny flat (secondary dwelling) is a smaller self-contained home that shares the title with the main house and cannot be sold separately. A dual occupancy is two dwellings on one lot that, subject to zoning and council approval, may be able to be subdivided and sold or titled separately. The right choice depends on your goals and what your lot allows.
- Can I add a second dwelling to any block?
- Not every block qualifies — lot size, zoning, setbacks, services and overlays such as flood or bushfire all affect what is possible, and the rules differ between a secondary dwelling and a dual occupancy. We check your lot against the relevant NSW policy and council controls before design so you know which options are genuinely available.