Custom-Built Granny Flats in Sydney
Granny Flats Designed for Your Family & Lifestyle
At Benson Building & Construction, we build custom-designed granny flats tailored to your needs, block, and budget. Every build is finished to the highest standard with quality materials and practical, thoughtful design.
We know every family is different, and so is every block of land. That’s why we offer a fully custom approach, designing granny flats that suit your lifestyle and make the most of your available space. Whether it’s a one-bedroom flat, a dual-occupancy option, or special requirements for elderly or disabled living, our experienced team will deliver a space that’s functional, modern, and built to last.

Custom Designs for Any Block

Fast, Stress-Free Approvals

Flexible Layouts & Specialised Options

Premium Finishes & Quality Materials
Add Value and Space to Your Property
With over 25 years of experience building homes and granny flats across Sydney, we’ve earned a reputation for quality workmanship, reliable service, and stress-free project management. From approvals and paperwork to final handover, we handle the hard work so you can enjoy the end result.
Ready to get started? Book a free site inspection today and let’s turn that empty space in your backyard into something special.
Experience the Benson difference for yourself.
With over 25 years of hands-on experience, we’re proud to be the builder Sydney families trust for a smooth, stress-free construction journey.
Your trusted Sydney residential & commercial builder
Good People. Great Builds.
Marina GutovicTrustindex verifies that the original source of the review is Google. **Excellent Renovation Experience – Highly Recommended!** We recently hired Benson Building to carry out a complete renovation on three of our townhouses, and we couldn't be more pleased with the results. From start to finish, the team demonstrated incredible professionalism, expertise, and attention to detail. The project involved a total overhaul of the interiors, including kitchen and bathroom updates, flooring, structural improvements, and new paintwork. The builder was communicative every step of the way, providing updates and addressing any concerns promptly. They worked hard to stay on schedule, and the timeline was adhered to without compromising the quality of work. What really stood out was their craftsmanship. Each townhouse looks like it’s been transformed into a modern, stylish living space while maintaining the charm of the original structure. They were able to work within our budget while still delivering exceptional results—every corner of each townhouse was thoughtfully executed, from the high-end finishes to the functional design choices. We were impressed by their commitment to using quality materials, and the workmanship was flawless. The team was respectful of our space, kept things tidy, and always ensured that the worksite was safe. We highly recommend Anthony and his team to anyone considering home renovations. Their expertise, dedication, and commitment to delivering beautiful results made this project an absolute success! Steph BryenTrustindex verifies that the original source of the review is Google. It had been time to have my rear deck replaced some time ago. I had several people not returning calls, not turning up for appointments they'd made, turning up and measuring but not sending a quote. I then had a recommendation for Anthony's services - his attention to detail and pride in his exquisite workmanship started with him returning my call promptly and went from there. He came to measure up, was incredibly prompt with his quote and kept me informed at every stage. He and Greg turned up on time, as expected, and finished my deck earlier than expected. There is nothing that I can fault - Anthony's customer service, workmanship and general demeanour are superb. I would recommend Anthony in a heartbeat, you'll be glad you called him. Pesh PenjweniTrustindex verifies that the original source of the review is Google. We recently had Anthony and his team complete a renovation for us. Anthony was very professional, and his communication was excellent ensuring that we were well informed at every stage. His team completed the job even earlier than expected and left the place in perfect condition not leaving any rubbish or materials in the house. We would highly recommend his services to family and friends. Phillip PanuccioTrustindex verifies that the original source of the review is Google. Anthony was great to work with. Polite and professional, always had time to explain what needed to happen and why. The quality of the build was excellent and I would definitely build with him again. The experience was very daunting at first but we could see Anthony has great energy to get things done and we were quickly out at ease. Andrea ATrustindex verifies that the original source of the review is Google. Anthony was responsive, reliable, and able to work with us to get the results we wanted. The quality of his work was excellent, and we were always kept updated. Julie SmithTrustindex verifies that the original source of the review is Google. Anthony and his team delivered a full-scale renovation including 2 bathrooms, flooring, painting and decking in 2 months! Anthony and met our objectives and delivered the project to a high standard. He was easy to communicate with and the process was seamless. We would highly recommend the Benson team! John DAVIESTrustindex verifies that the original source of the review is Google. Anthony and his team totally modernised my bathroom from a drab and well-worn 1970s style. Anthony was always available to discuss progress and was very responsive to any questions I had during the construction process. The quality of the work was outstanding. W UngTrustindex verifies that the original source of the review is Google. It’s hard to find a contractor that will take on smaller renovation projects, but Anthony and his team absolutely came through for me. We wanted to replace the countertop, sink, and splashback in our kitchen, as well as some wardrobe doors that he had to design from scratch. Not only did he manage to stick to our budget, but he went above and beyond to make sure the finishes looked perfect, and the quality of his work is outstanding. I’ll definitely be turning to him for our next project, highly recommended.