About Us

Geoff Docker,
Manager of GBD Constructions…

Geoff started his building career when he was 17 working for number of building companies on high-rise construction and light commercial projects. By the age of 26, he had successfully completed his Carpentry and Joinery Trade and the Building Foreman and Clerk of Works Certificate, which allowed him to obtain his full Builders Licence.

Through the knowledge Geoff gained with these large companies, he moved into starting his own building business on the northern beaches, carrying out quality renovations and extension. Most of GBD Constructions work is and has been North of Sydney around the Northern Beaches and North Shore.

This continual high standard of workmanship and Geoff's ability to carefully match materials, products and attention to detail of existing homes, Geoff has become well known for his quality renovation work. In 2009, Geoff's attention detail was awarded by having one of his projects in North Sydney written up in Home Renovate Design Magazine.

Geoff has a passion for timber yachts. He owns a 37ft Swanson named Camille which he has been sailing for over 27 years. He has continuously maintained and added detailed handmade timber joinery. Geoff is also currently re-building a timber 6-meter class yacht named Yeoman built in England in 1937. This is an undertaking of an entire restoration on his own.

As a family man, Geoff and his beautiful wife Debbie have two daughters Kerrin and Michelle. He enjoys spending time with is family and friends after hours, when he not spending time doing what he loves most, sailing.

The Company

GBD Constructions has been building on the northern beaches for over 35 years, which has given us a wide range of experience in all types of new and old residential buildings. Through this experience and knowledge, we are able to provide a Building Consultant Service to assist you in the early stages of your ideas and work to your budget.

Our Specialised Team produce a quality product and service. With your new home or renovation, we make it our high importance to achieve the design criteria which you are dreaming off. Along the way, we will assist on any buildability issues, which may arise to blend your existing home in with the new.
Our expertise in this area is prominent in our work, given a high proportion of our clients are from recommendations.

When working on renovations we have found there is a need for one off joinery requirements and special timber runs for matching old profiles found in early building designs. In our Builders Workshop based in Mona Vale, Northern Beaches we have a variety of machines & equipment set up to manufacture these items quickly. This has been a huge advantage when full filling our clients requirements and matching new to old.

Our Team

Geoff Docker – Manger with 35 years' experience in the building industry, Fully Qualified Builder

Michelle Docker – Office Administration

Kerrin Docker – Office Administration

Ian Squire – Site Foreman, Fully Qualified Carpenter

Josh Stitt – Fully Qualified Carpenter, completed his 4 year apprenticeship with GBD and has continued on with us

Chad Conwell – Fully Qualified Carpenter

Steven Tonkin – Fully Qualified Carpenter, completed his 4 year apprenticeship with GBD and has continued on with us

Peter Grainger – Builders Labourer

Mona Vale BuilderBuilding for Tomorrow

It is increasingly important to plan and design with an environmental outlook. In our work whether it be new or renovation projects we maintain a building ethic which recycles and re-uses where ever possible.

There are many good materials which come from renovation and demolition work e.g.
1. Timber framing
2. Brick and Concrete to be crushed for road base and retaining work
3. Metal roof, gutters, windows and lintels for recycling

With new materials the importance's is to use renewable resource products and materials and to design easy low maintenance buildings.

The GBD Constructions Team and I work together to build with all this in mind and are continually looking at improvements in our construction to help our environment.

1. Water service – using tank storage
2. Power supply – with solar panel to assist
3. Improved glazing – control of heat

House design and aspect are one of the major criteria's which affect the ability of the building to provide good ventilation, good light, heating and cooling for comfortable living.
Many of these items are over looked in so called modern designs. It is extremely common to see buildings with no eaves, masses amount of glass and then install air conditioning to control building heating and cooling.
This is not looking after the environment and building smarter housing.

Here at GBD Constructions we are not building greener you can have whatever colour you want!
We are building for the future.


Northern Beaches Builders Services

Northern Beaches Builders Locations:


  • Custom Built Homes Northern Beaches
  • New Homes Builders Northern Beaches
  • Granny Flat Builder Northern Beaches
  • First Floor Additions Northern Beaches
  • Northern Beaches Home Extensions
  • Northern Beaches Home Alterations
  • Home Renovations Northern Beaches
  • Builders Mona Vale