custom architectural additions.

HDMB are specialist residential builders - the local authority on transforming your early century house into a
bespoke modern home for you, your family, for generations to come.

Sydney’s Inner West, Eastern Suburbs and Lower North Shore.

Download Your Free Guide

protect your investment
before choosing
Your builder

Get your copy now

custom architectural additions.

HDMB are specialist residential builders - the local authority on transforming your early century house into a
bespoke modern home for you, your family, for generations to come.

Sydney’s Inner West, Eastern Suburbs and Lower North Shore.

Download Your Free Guide

protect your investment
before choosing
Your builder

Get your copy now

extensions and first floor additions specialist.

When it comes to extensions and first-floor additions in Sydney’s Inner West, Eastern Suburbs and Lower North Shore, HDMB stands head and shoulders above the rest, making us the best choice for transforming your home into a stunning space which seamlessly blends the old with the new.

Our niche specialty lies in extensions and additions to local period homes, a skill that has earned us a reputation as the local experts in this field.

our projects.

View all projects

ways we work
with people.

View complete process

what our clients say.

…attention to detail was brilliant…

We cannot speak more highly of Jay and Dave and the whole HDMB team. The attention to detail was brilliant and communication with us about every item was very appreciated. We are so pleased with the final product; everything is just as we had hoped. We would not hesitate to recommend the team to anyone - and we already have! Thanks for an excellent job.

Nicole

Leichhardt

…ensuring the build was completed on time and on budget…

Jay and Dave completed our renovation and first floor addition in Annandale, converting our 2-bedroom semi into a beautiful 4 bedroom home. We could not be happier with the quality of their work. They were very helpful in collaborating on ideas and improvements to the design, as well as ensuring the build was completed on time and on budget, which was impressive given a strict 6-month turnaround for a substantial renovation. We would not hesitate to recommend them to others.

Emma

Annandale

On-time, on budget, exceptionally organised...

We couldn't have been more impressed with the quality of work and attention to detail from Jay & Dave at HDMB. On-time, on budget, exceptionally organised as well as being super tidy, our renovation experience with them was outstanding. I would not hesitate to recommend them to anyone looking to extend, renovate or with a new build.