From early 2026, it will become significantly easier for property owners across New Zealand to build what’s commonly referred to as a minor dwelling or granny flat.
But while the rules are changing, there’s more to success than just getting the go-ahead from council.
What’s Changing in 2026?
The Government has announced changes that will simplify the process of building a standalone unit on your property:
- You’ll be able to construct a minor dwelling of up to 70 square metres without needing building consent, provided the structure meets Building Code requirements and is either built or overseen by a licensed professional
- Most residential and rural properties will no longer require resource consent for these builds
- You’ll still need to notify your local council before and after construction, but the overall process will be much more streamlined
These updates are expected to unlock more housing options and reduce delays for homeowners looking to build.
What Is a Minor Dwelling?
The terms minor dwelling and granny flat are often used interchangeably. Both refer to a smaller, fully self-contained unit built on the same site as an existing home. They typically include a kitchen, bathroom, and living area, and are often placed at the rear of the property.
Things to Think About Before You Build
Just because it’s easier to build doesn’t mean all minor dwellings are equally useful, attractive, or valuable.
Here are a few things to consider before moving ahead:
- Access: Ideally, the flat should have its own pathway or entrance that doesn’t interfere with the main house. If sharing a driveway, ensure the parking layout avoids blocking vehicles.
- Privacy: Good separation makes the space more appealing. Avoid shared living zones or direct visibility from the main house into the tenant’s entrance or yard.
- Off-street parking: If your site allows for it, dedicated parking is a big plus, especially in busy suburbs or narrow streets.
- Liveability: Think about the flow of the interior. A well-designed minor dwelling should feel like a proper home, not a repurposed sleepout.
Minor Dwellings Can Be a Great Move, If You Plan Ahead
The upcoming rule changes make it easier than ever to expand your property’s potential, but the success of a minor dwelling still depends on good planning.
Design matters, layout matters, and how the unit fits into the existing site can affect future rentability and value.
Need a Second Opinion?
If you're exploring the idea of adding a minor dwelling to your property and want a second opinion, the team at Oxygen is happy to talk it through. There’s no cost for a chat, and we’re always happy to share what we’ve learned from managing hundreds of properties across the country.
