The past couple of years have seen granny flat popularity increase in demand, giving homeowners an ideal chance to extend their homes. One of the most common designs of granny flats has to be the 3-bedroom granny flat. Following is a post about three-bedroom granny flat designs and some considerations to make before designing one.
Granny flats are the ideal solution for parents who still have children at home but want some privacy and independence because young people choose to stay at home for longer and longer. Pillar Build Granny Flats specializes in three-bedroom granny flats, which are way bigger in space compared to the one—and two-bedroom versions of normal lodgings. Contact us today for more information on how our well-thought-out and affordable 3-bedroom granny flat designs can assist you.
How big can a granny flat be in NSW?
The primary factor to consider is the maximum size of your granny flat.
Although a Granny Flat of 60m2 is the maximum allowed dwelling area for a granny flat by law, your property may allow for a smaller size. This has to be remembered whatever the size in design planning. We also recommend that you follow to your local council and/or area professionals, such as Pillar Build Granny Flat, to confirm other local rules that may impact your design or construction.
Although that may sound restrictive to have a size constraint, be surprised that within that area, you can still do so much if done with a little creativity and some very wise design decisions.

Benefits of a 3 bedroom granny flat
Rental income opportunity: Three-bedroom floor plans are flexible and appealing to renters who have a large group of people or a family.
Multigenerational living: Have your own room while sharing a property with several generations.
Family-friendly living: Enough room and extra privacy are provided for bigger families in well-proportioned living areas.
Area of useful living: Three-bedroom floor plans are flexible and appealing to renters who have a large group of people or a family.
Flexible usage: The rooms are easily adjustable and customizable to meet your changing demands as your lifestyle changes.
Factors to Consider When Building a 3 Bedroom Granny Flat
Before constructing a three-bedroom granny flat, here are a few things to consider. Among them are:
• Local laws: Check your local government’s disposition toward allowing granny flats to be built in your community and what requirements you need to comply with to get permission.
• Budget: Determine how much you can afford to spend on your three-bedroom granny flat building project, including budgeting for materials, labor cost of workers, and other license requirements.
• Land area: A minimum land area should be available to accommodate the granny flat after considering the setbacks and other restrictions.
• Accessibility: If the granny flat is for elderly or disabled residents, consider access facilities like wheelchairs with wider entrances.
Costs to Build 3 bedroom Granny Flat
Maximum size: 60m² a well-liked option among our investors, especially if you have a large garden or are close to important educational institutions like universities and popular tourist destinations. Granny Flats with three bedrooms provide all the comforts of a regular house at a significantly lower price.
When constructing a three-bedroom granny flat, remember that the maximum permitted secondary residence lot size is 60 m². This means that in order to make room for the third bedroom, you will need to resize the kitchen and living room.
Initial Price: According to Backyard Granny’s study, builders charge between $125,000 and $165,000. As with any granny flat size, the price difference depends on the builder, so be sure to compare bids for inclusions.
Total Cost: A fully furnished three-bedroom granny flat typically costs between $145,000 and $160,000. The build price, standard inclusions, plans, approvals, site expenses, and full turnkey ready-to-move-in should all be included in this pricing.
Custom-built granny flats vs granny flat kit homes
A $50,000 granny flat kit home seems like a more “wallet-friendly” option than a granny flat that is custom-built. The complete price provided by custom granny flat builders is often not provided by kit home companies, so you may be faced with several unexpected or hidden expenses, such as:
• Site costs
• Service connection
• Electrical and plumbing essentials
• Council or complying development approvals
• Inclusions like blinds, floor finishes, letter boxes, and everything you’d need to move in.
Pros and Cons of Building a 3 Bedroom Granny Flat
Pros:
• offers additional living space for families or visitors
• Raise the value of your home
• Is suitable for a range of purposes
• Allows older family members or adult children to live independently
Cons:
• May be costly to construct
• Needs permits and may be subject to municipal laws
• More maintenance and care