Contact Us

Grant Allen, Director/Builder

Ph: 0414 870 983


15 Carrington Ave
Cromer NSW 2099

northshore builder
home extensions sydney northern beaches

Areas we service

GDA Building Services is located in Sydney’s Northern Beaches.  GDA specialises in new homes, first floor additions, all aspects of renovations, alterations for single and double storey homes. The areas we service include:

Northern Beaches, NSW (Manly, Freshwater, Dee Why, Collaroy, Terrey Hills, Frenchs Forest & more)
Upper North Shore, NSW (St Ives, Turramurra, Wahroonga, Pymble, Chatswood, Lane Cove & more)
Lower North Shore, NSW (North Sydney, Mosman, Cremorne, Neutral Bay, Cammeray, Crows Nest & more)

home extension renovation

Renovations & Extensions

If you love your location but are looking for more space to accommodate your changing needs, upsizing your home with an extension or first floor addition offers an affordable and appealing alternative to moving.

By increasing the size of your living space you will be adding real value to your property as well as making your home more desirable and comfortable.

When we started our search for a builder, GDA building services made our short list because they had renovated a number of houses in the northern beaches area which were clearly built to a high standard.

We decided to proceed with GDA because we were able to inspect some of their recent projects and we felt a great level of comfort with Grant's expertise & consultative approach