In 2026, most quality custom-built granny flats in NSW start at approximately $225,000, including GST. Larger designs, garages, and complex sites typically range from $275,000 to $525,000 an upwards, depending on the size and inclusions.
In 2026, most quality custom-built granny flats in NSW start at approximately $225,000, including GST. Larger designs, garages, and complex sites typically range from $275,000 to $525,000 an upwards, depending on the size and inclusions.