How Much Does It Cost to Build a Granny Flat – A Guide

Asking the Question, “How Much to Build a Granny Flat?”

With affordable housing alternatives on the rise, you might be asking ‘how much to build a granny flat?’ Granny Flats can be rewarding investments on both a financial and personal level, giving you security and freedom where it matters most. There are a few things to be aware of though that will contribute to the cost to build a granny flat, which can be anywhere between $20,000 and $200,000.

What to Be Aware of Legally

Granny Flat building costs in Sydney

When you’re planning to build a granny flat, it’s important to understand the council and/or State regulations that must be adhered to, and the effect they can have on the cost to build a granny flat. Some councils may charge a contribution fee of up to $20,000. This is not common, but something you should look into at the start of the build. 

On top of possible contribution fees, you might need to submit a Development Approval (DA) application. In some areas in New South Wales, this is not needed if your property meets certain standards.  

On our projects, we always suggest working with a professional who has a solid understanding of council legislature to ensure your compliance. 

Our team at Premier Granny Flats offer free online assessments and quotes that will provide an initial overall figure. With this professional advice, you can be confident you won’t suffer any bill shock over the course of the build. 

Sydney granny flat building costsConsider What Facilities You Will Need

When you ask yourself, ‘how much to build a granny flat’you will need to consider the cost of the amenities and facilities required in your granny flat.

Your second dwelling will need to have everything required for self-contained living including a kitchen or kitchenette, bathroom, and a private entrance.

These features can make up the bulk of your granny flat cost and may contribute anywhere between 5% and 30% off the overall cost. It’s important to remember that even though the working space of a Granny Flat is not that of a regular home, the levels of comfort and homeliness must be comparable to that of one. 

Granny flats are investments and can add value to your property, making the cost of building them a worthwhile investment.

What Options Do I Have When Asking the Question, “How Much to Build a Granny Flat?”

When you build a granny flatthere are many options available. One option is to custom build it on your property. This will come with its own extra price tag, but it gives you oversight of the build and allows you to manage progress more closely. 

Although Premier Granny Flats builds custom granny flats, there are kit homes are available and, in some cases, can be DIY to reduce some of the cost. The main cost components of a kit include the slab, electricity and plumbing. kit for a granny flat less than 38m2 will set you back around $80,000. Moving up to around 50m2, you can expect to pay just under $100,000 – around the $95,000 mark. For 71m2 you can expect to pay anywhere between $120,000 and $150,000. 

Granny flat cost Sydney

The last thing to consider if you’re going to build a granny flat is its purpose. This is an important decision and will significantly shape the way you approach your options. 

If your intention is to rent it out, you can receive anywhere between $200 and $1000 per week rental income, which really makes a difference when deciding between quality and cost. Be sure to take that into account when you’re making decisions in the initial design process. 

There are definitely plenty of options out there to suit you and your needs but the cost to build a granny flat depends on the features you need and the method you choose.

For expert advice from professionals you can trust, contact Premier Granny Flats today for an online assessment and a chat about the right granny flat option for you.

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