Sizing up Your Options: How Big Can a Granny Flat Really Be?

Granny flats have become a popular housing solution for homeowners seeking to accommodate aging parents or adult children while providing them with their own independent space. These secondary residences not only foster family proximity but also have the potential to generate rental income. However, before embarking on a granny flat project, it is essential to understand the regulations and considerations involved. This article will explore the various types of granny flats and provide insights to ensure the success of your project.

Understanding Local Regulations

Before commencing any construction, it is crucial to familiarise yourself with the regulations imposed by your local government. Requirements may vary depending on your location, and you may need clearance and approval from the local council. Visit your local council's building and planning department to seek their advice and initiate the Development Application process. By discussing your plans with the council, you can ensure compliance with the laws and regulations governing granny flats.

Types of Granny Flats

1. Granny Flat with Garage

It is possible to build a granny flat that incorporates an existing garage. The State Environment Planning Policy (SEPP) permits granny flats with an interior living area of up to sixty square meters. Considering the garage as a non-livable space, it can be connected to the granny flat without compromising the livable area. This configuration provides the convenience of accessing the garage from within the building, offering shelter during inclement weather.

2. Detached Studio

A detached studio is a versatile living space that can serve as a home office, entertainment area, art studio, guest room, or any other desired purpose. Although it is a separate building from the main house, it is considered an addition to the property. Detached studios are often used as functional extensions, providing additional living space without kitchen or laundry facilities. Depending on the circumstances, they can be built to comply with BAL40 or Flame Zone requirements.

3. Detached Granny Flat

A detached granny flat is a separate secondary housing unit on the same property as the primary residence. It is an excellent option for investment purposes, providing tenants with a separate entrance and increased privacy through fencing. This granny flat offers advantages for both homeowners and tenants, making it an appealing choice.

4. Two-Storey Granny Flat

The popularity of two-storey granny flats is increasing due to their numerous benefits. Families and investors recognise the advantages of a two-storey backyard dwelling. Like single-storey granny flats, the interior usable space is limited to sixty square meters. Including a double garage on the ground floor, with a 60 m2 granny flat on the second storey, is possible. Privacy walls can be built between separate entrances if required.

5. Attached Granny Flat

An attached granny flat is connected to the main house and designed to blend seamlessly with its architectural style. The level of interaction or isolation between the main house occupants and the occupants of the attached granny flat can be adjusted by modifying the structure's orientation. Fire-rated walls may be required between the two structures, and a separate entrance for the granny flat is essential.

Conclusion

Granny flats allow homeowners to create additional living space or generate rental income while maintaining close proximity to family members. By understanding the regulations and exploring the various types of granny flats, you can make informed decisions regarding your project. Whether you opt for a detached, attached with garage, two-storey, or detached studio granny flat, careful planning and compliance with local regulations are essential for a successful outcome. 

Looking to build a granny flat in Penrith? Look no further than Nemfel Group! As specialists in new homes, granny flats, home renovations, and knock down rebuilds, we have the expertise you need to create your dream living space. Contact us today to get started on your granny flat project in Penrith!

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A Comprehensive Guide to Building a Granny Flat in NSW