AGATHĒ Builders is a specialist residential construction company on Sydney’s North Shore and Northern Beaches. We focus on large-scale extensions, first-floor additions and custom homes for clients who value quality, detail and an elevated building experience. Founded in 2019, AGATHĒ has built a strong reputation for integrity, craftsmanship and a team-first culture. Our name, taken from the Greek “agathē” meaning goodness, reflects our belief that building well goes far beyond structure — it’s about creating spaces that enrich the way people live.

Our strength lies in a streamlined, transparent process backed by a highly capable in-house team. With refined systems, modern project management and clear communication, we manage every stage meticulously — from early planning through to handover. The focus is simple: deliver with precision, finish beautifully, stay on time and stay on budget.

A core pillar of AGATHĒ is our “Healthy Homes” philosophy. We integrate evidence-based design principles such as low-tox materials, improved indoor-air quality, better thermal comfort and sustainable construction practices. The result is a home that not only looks exceptional but feels healthier, performs better and lasts longer.

We serve clients from Sydney’s North Shore through to the Central Coast and Newcastle, thriving on complex sites and thoughtful architectural designs. Our values centre on honesty, ethical building and a positive, growth-focused environment — especially in developing young tradesmen with purpose and professionalism.

Choosing AGATHĒ means partnering with a builder committed to refined execution, long-term value and a construction journey grounded in care, quality and integrity.

Cert 3 carpentry & Joinery 

Cert 4 Building and construction 

The healthy home materials mastermind certificate of completion 

Master builders association member 

PAC trained certified

Australian Passive haus association member