About Us



At All Custom Granny Flats you are in the hands of a licensed builder with over 25 years experience in the building industry.

Proprietor – Tom Diterlizzi

Builder & Designer – Fully licensed since 1987 – Lic No. 39117

Originally from a family of builders that migrated from Italy in the late 50′s we pride ourselves in producing quality work from start to finish. Taught in the family business by the masters of the trade, old school generation of workers that learnt the hard way to understand that experience, hard work and a strong work ethic is vital to the success of any business, more so within the building trade. This trade requires hands on craftsmanship and attention to detail. It is more than a trade, it is an art.

In addition to the above foundations, Tom has achieved 5 years of Cad Designing experience through a Queensland joinery firm between 1996 – 2001 further increasing expertise in all aspects of detail and design.

Tom Diterlizzi
granny flat Sydney builder

A few words:

As a family man with 3 children ranging from 12 to 27 years I am well aware of the need for space at home & the pressures of a struggling economy. After 25 years in the building game I got into the granny flats business, as I truly believe it to be an untapped niche and a viable solution for many different circumstances. I see it as not just a solution but a lifestyle choice.My vision is to build quality granny flats that are affordable yet made from the finest materials to ensure they are durable & quality homes. A granny flat should be viewed as an extension of a home. It deserves the same attention & quality materials you would use in building your home and that is what we do at All Custom Granny Flats. From concept to completion.