Custom Granny Flat Construction Services | Master Granny Flats

Master Granny Flats provides custom construction services in Sydney, specialising in granny flats, and secondary dwellings. From concept to completion, we ensure quality builds that enhance comfort and add value. In 2025, costs vary by size: one-bedroom flats range from $160,000–$180,000, two-bedroom from $170,000–$200,000, and three-bedroom from $175,000–$210,000, with prices typically covering site costs, approvals, design, and construction, though final amounts depend on builder and location.