Understanding the New 70m² Granny Flat Rules

The new legislation removes the need for a formal building consent for granny flats up to 70m², provided certain conditions are met. This means homeowners can save time and money by avoiding the lengthy consent process that usually applies to building projects.

Alongside this, a new National Environmental Standard (NES) will reduce the need for resource consent in most residential and rural zones. This applies as long as basic planning rules such as height limits and boundary setbacks are followed.

The goal is to make it easier to add secondary dwellings that meet safety and planning standards without unnecessary delays.

Key Conditions and Requirements to Follow

To qualify for the consent exemption, granny flats must meet specific design, location, and construction requirements:

• Design and Materials

The dwelling must be single storey with a simple design. Lightweight materials like timber or light steel framing are required. The maximum height allowed is 4 metres, and the floor level cannot be more than 1 metre above the ground.

• Location

The granny flat must be at least 2 metres away from any other building or property boundary.

• Professional Oversight

All building work must be carried out or supervised by Licensed Building Practitioners (LBPs) and certified tradespeople such as plumbers and electricians.

• Council Notification

Homeowners must notify their local council before construction starts. After completion, final plans and compliance documents like Records of Work and safety certificates must be submitted within 20 working days.

• Development Contributions

Councils can still charge fees for local infrastructure through the Project Information Memorandum (PIM) process.

These conditions ensure that while the process is simplified, the granny flats remain safe, durable, and compliant with local rules.

How the New Rules Affect Building Code and Local Plans

Even though building consent is not required under the new rules, all granny flats must still comply with the New Zealand Building Code. This means the dwellings must meet standards for safety, durability, and energy efficiency.

Homeowners also need to follow local planning rules. These rules vary by council and can include restrictions on size, appearance, and placement of secondary dwellings. It’s important to check with your local council before starting any project.

Practical Examples of What You Can Build

Imagine you own a property in a suburban area zoned residential. Under the new rules, you could build a 65m² granny flat made from timber framing with a simple roof design. The flat would be single storey, no taller than 4 metres, and set 2 metres from your house and property boundaries.

You would hire licensed builders and tradespeople to complete the work and notify your council before starting. After finishing, you submit the required compliance documents to the council within 20 working days. You avoid the usual building consent process, saving time and money.

This makes adding a rental unit, a home office, or a space for family members much more accessible.

A timber-framed granny flat being built on a rural property

Important Considerations Before You Build

While the new rules simplify the process, there are still important points to consider:

• Check Local Rules

Some councils may have additional restrictions or require resource consent for certain areas. Always confirm with your local council.

• Professional Help is Essential

Licensed Building Practitioners and certified tradespeople must be involved to ensure the building meets all safety and code requirements.

• Costs Still Apply

Although building consent fees are waived, development contributions and other fees may still apply.

• Compliance Documentation

Proper records and certificates must be submitted after construction to confirm compliance.

By understanding these factors, homeowners can avoid surprises and ensure their granny flat project runs smoothly.

The Impact on New Zealand Housing

The new 70m² granny flat rules are expected to increase housing options and affordability. Secondary dwellings provide flexible living arrangements for families, rental income opportunities, and support for aging relatives.

Simplifying the building process encourages more homeowners to add these dwellings, helping address housing shortages in many areas.

This change reflects a practical approach to housing needs while maintaining safety and planning standards.

Building a granny flat under these new rules can be a smart way to add value to your property and create additional living space without the usual hurdles.

If you are considering building a granny flat, start by heading to www.helpmebuild.nz with our step-by-step process to plan your project.

Conclusion

In conclusion, the new legislation surrounding granny flats in New Zealand represents a significant shift in how homeowners can approach building secondary dwellings. With the removal of the building consent requirement for structures up to 70m², the process becomes more accessible and cost-effective.

By adhering to the outlined conditions and understanding local regulations, homeowners can successfully navigate this new landscape. Whether for personal use, rental income, or accommodating family members, granny flats offer a versatile solution to modern housing challenges.

Embrace this opportunity to enhance your property and contribute to the growing need for diverse housing options in New Zealand.