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Granny Flats Sydney

Best Granny Flats In Sydney: Is There a Goldmine in Your Yard?

Granny flats aren’t just for your grandparents anymore.

Granny flats have been increasing in popularity in recent years due to their stylish design, quick build times, affordable pricing, and efficient use of available space. On top of the advantages offered in terms of space, Sydney granny flats represent prime investment opportunities.

With Sydney rental prices consistently leading the country’s averages, using your granny flat as a second source of income isn’t just possible, it’s profitable.

However, these advantages only ring true when you choose the right design and work with the right builder.

Bellcast Granny Flats have been in operation in Sydney for the past 15 years where we have helped hundreds of clients to construct their ideal granny flat. We are licenced, insured, accredited, and members of the HIA, ensuring your new build is managed simply and responsibly. With an array of 5 Star Facebook ratings, multiple testimonials from satisfied clients, and many successful projects in the Sydney area, our pedigree speaks for itself.

We pride ourselves on a build process that is fast, direct, and uses only the best materials and finishes. And with an upfront and transparent quoting mechanism, we work with you each step of the way towards an affordable, practical and stunning granny flat.

Whether you’re looking for the best granny flats in Sydney at a great price, a new space for you or your family to utilise, or a secondary income in the form of rent, we’re here to help.

Call us now on 1300 661 370 for a fast and easy quote or consultation.

What are the benefits of a granny flat?

Any Sydneysider knows the challenges of space in the harbour city. With demand for living spaces at all-time highs and a willing rental market, there’s never been a better time to utilise the excess space in your yard.

If you’re unsure whether your property is suited for a granny flat, consider the following 3 scenarios:

  1. Your own granny flat becomes a rental property and/or long-term investment.
  2. Your own granny flat can be used to house elderly parents and promote healthy living.
  3. Your own granny flat can be used to house your children as they save for their home.

Of course, the flat can be used to care for family members and also serve as a rental property, to serve as a long-term investment, with the versatility of your own standalone dwelling a hallmark of this affordable construction project.

Your own granny flat, or Accessory Dwelling Units (ADU) is the definition of investing in affordable living.

Granny flat advantages

If you’re looking for an investment with almost zero disadvantages, the granny flat comes as close as you’ll find. The benefits include:

  • Low Cost Build
  • Rapid Construction
  • Increase Land Value
  • Brilliant Return on Investment
  • Extra Tenant for Safety & Socialising
  • Usually No Council Approval Required
  • Increased Control Due to Close Proximity
  • Less Complexity & Stress Compared to New Home Builds

Will a granny flat add value to my Sydney property?

If you’ve got excess space in your yard, it’s natural to consider ways to utilise it more effectively. If your children have grown up and the backyard is quieter than it used to be, or you’re looking for a way to cultivate a low-maintenance yard, using your unwanted space to build a granny flat is ideal.

Naturally, you’ll only want to make changes to your property if it benefits you both now and in the future.

That’s where granny flats offer unrivalled advantages.

Did you know a granny flat can boost a Sydney property’s value by up to 30% and increase rental yields by up to 27%?

Not only are you generating a stream of revenue today, but when it comes time to sell, your land may be worth more too.

Are there any drawbacks to constructing a granny flat?

It’s natural to wonder what downsides come with granny flat construction, and any builder who tells you there are none is usually an example of the primary disadvantage of granny flats, and that is the homework required to find the best granny flat builder for you.

Working with a reputable builder that offers fully featured flats and is licenced and insured, like Bellcast Granny Flats, offers peace of mind from project inception to completion.

However, the wrong granny flat builder can leave you in a $100,000 hole, paying for a granny flat that’s poorly designed, without the right inclusions. You’d then have to pay another $30,000 to $50,000 to fix everything up again, with added stress. If something is not done right initially, it will continually take its toll due to inferior quality - every single day.

It’s also worth noting that you can’t subdivide a property in NSW if it contains a granny flat. If you’re considering subdividing your land in the future, it’s worth speaking to your local granny flat construction team to make sure you’re making the right choice.

As a bonus, your own granny flat offers a built-in income source, so your land is generating revenue even if you can’t subdivide down the line.


Do I need council approval to build a granny flat in NSW?

Let’s be honest, red tape can quickly turn an exciting building project into a nightmare.

Thankfully, in NSW, the Affordable Housing State Environment Planning Policy (SEPP) permits all Sydney homeowners meeting certain criteria to build a granny flat on their property.

If your property is larger than 450 square metres, has at least 12 metres of road frontage, and is located in a residential zone, then you’re good to go with no paperwork or messy Sydney council loopholes to jump through.

That means you can build a stylish two-bedroom granny flat in your yard without council approval. You can also convert a garage or another area into a granny flat, and there are many creative ways around planning obstructions.

In less than 14 weeks, you could have a high-quality rental property attached to your current abode.

For premium quality granny flats in Sydney, contact us now on 1300 661 370.

How much does a granny flat cost to build?

That’s the million dollar question - thankfully, Sydney granny flats are much cheaper than that.

Although granny flats typically fall between $80,000 and $120,000, there’s no ‘one size fits all’ cost of granny flats, as designs vary greatly. At Bellcast Granny Flats we offer a range of designs to suit any living requirements, across 1-bedroom, 2-bedroom and 3-bedroom dwellings.

The average cost to build a granny flat will set you back between $1,600 to $2,000 per square metre, with granny flats ranging from 35m2 to 45m2 in Sydney.

Compare these prices to a traditional new home build which will set you back between $1,300 to $4,000 per square metre. Not only will you pay more for a traditional home, but the difference in size means your costs are significantly less when you opt for a granny flat.

As an added bonus, when your granny flat is complete it can start generating income and paying itself off.

Looking for detailed pricing? Click here for our ‘Sydney Granny Flat Price Guide’

How long does it take to build a granny flat?

Design, form submission, and construction of a granny flat can all be done within 14 weeks (3.5 months).

In contrast, the design, submission, and construction of a regular house can take closer to 12 months, provided you already have a plot of land to build on! The time for completion will also be affected by the size and scope, and whether you opt for a 1, 2, or 3 bedroom granny flat in Sydney.

Factors that impact build time include:

  • Land accessibility (slope or incline)
  • Size of granny flats
  • Sewage placement
  • Stormwater drainage
  • Title restrictions
  • Electrical connections
  • Surrounding neighbour impact

But don’t stress if these sound like massive delays in waiting. Granny flats are increasingly popular because they’re significantly faster to build than a traditional home which requires vastly more paperwork and council approval, as well as more resources and materials.

At Bellcast Granny Flats we pride ourselves on quick and disruption-free projects, delivering your own modern granny flat in as little as 14 weeks.

What is the Bellcast Granny Flats philosophy?

Our philosophy is simple.

We make the best use of space to design and build granny flats that are high quality, extremely affordable and quick to complete.

We are a direct, efficient, and fast moving business that provides high-quality granny flats in Sydney, with a focus on ONE specialty that allows us to deliver exceptional workmanship and products.

We can’t help if you’re after a kitchen renovation, or a home extension. We built our business around crafting superior granny flats, and you’ll benefit from our expertise and direct approach to efficient granny flat design and execution.

Frequently Asked Questions about Granny Flats In Sydney

How much rent can a Sydney granny flat generate?

Granny flats help provide an answer to housing affordability issues, with Sydney living costs consistently high.

Although your Sydney suburb will influence median rental prices, as an example you could generate $400 per week from a stylish and modern granny flat, costing you $100,000 to build.

Weekly Rent: $400
Cost of Granny Flat: $100,000
Break-Even Point: 4.79 years

Imagine paying off your own granny flat in under 5 years, then pocketing rent as a form of passive income until it’s time to sell.

With Bellcast Granny Flats, that dream can become a reality.

What is the maximum size for a granny flat in Sydney?

The largest granny flat designs are 60m2.

Does a granny flat need to be attached to my current home?

No. We can build detached granny flats to create separate spaces ideal for renting, home offices, creative spaces, excess living spaces and practically any use you can think of.

Can I personalise my favourite granny flat plan?

Yes. Your satisfaction is our goal, and if you’d like to make changes to create a unique space for you, your family, or your tenants, we’re happy to oblige.

Do your granny flats come with inclusions?

Yes. Our granny flats come with a range of industry-leading inclusions which our competition typically charge as add-ons. These include:

  • Concrete slab
  • Termite control (AS3660)
  • Wall, ceiling and roof framing (AS1684)
  • Concrete roof tiles
  • Eaves and verges
  • Insulation
  • Powder Coated aluminium sliding windows (with flyscreens and security locks)
  • And much, much more (seriously, check out our full list of inclusions here)

Why Choose Us

Built To Last Guarantee: Structurally Sound For 25 Years
Built To Last Guarantee: Structurally Sound For 25 Years
Energy Efficient Design
Energy Efficient Design
Australian Made
Australian Made
No Council Approval
No Council Approval
10 Day Approval by Private Certifier
10 Day Approval by Private Certifier
Family Owned and Operated
Family Owned and Operated