There is more to building a granny flat than the charges for the building itself, mentioned above. Consider all additional costs in your budget, to establish whether it’s possible to build the granny flat you are looking at for under 20K.
Contact your own Council for some of the charges such as their fees, or
Gather at least 3 quotes each from engineers, architects or drafts persons, plumbers, electricians, etc.
As these costs do vary between Councils, so I can only give a guideline of what I was changed.
Allocate Your Budget
It is common to be concerned about blowing your set budget.
In fact, the Home building company GJ Gardner Homes conducted a survey of 500 homeowners who had built their homes in the last decade.
This uncovered research showing that:
Almost two-thirds (62.5%) of “owner-builder” projects go over their budget.
Don’t let yourself become one of those figures, just by following this simple trick:
Allocating your budget, allowing you to spread your money as far as possible.
How, you wonder? Well, I will help you figure out exactly how you can do so, as this will help you stay under your 20K mark.
Well, the hardest part is already done – you have already determined how much you are willing to spend. Once you have this figure in mind, there is no reason you cannot build a granny flat that meets your requirements.
It will help prevent you from having any big budget blowouts.
Now, it is all about stretching those dollars in the right directions, so you end up with the best possible version of your granny flat.
I have also found this great article which talks about why developments go over budget, and what else you can do to ensure you stay within yours.
In recent years, the popularity of granny flats has soared – small is the new big!
However, the cost of a building a granny flat can vary significantly, anywhere from $20,000 to $200,000 or more. This all varies depending on your location, the inclusions you choose, the size of the granny flat, its’ materials and more.
You can consider choosing from a:
Flatpack granny flat, that comes prefabricated and will only take a few hours to assemble, costing you under 20K, or a
Do an important, responsible thing – allocate yourself a budget and stick to it.
Every single additional cost must also be taken into consideration, these all add up and become very important.
Please note that costs vary between Councils’, so I also recommend that you contact yours for their exact fees.
If you have a bit more money you are willing to spend, it is also possible to build a granny flat for under $50 000. This (previous link) will explain what needs to be done and where extra costs may catch you out as well.