Modern dining room with a large wooden table, white chairs, and a black bowl in the center. Floor-to-ceiling glass doors open to an outdoor deck with a table and chairs, overlooking a body of water and rocky coastline.

HIGH PERFORMANCE HOMES

Sydneys North Shore | Northern Beaches | Hills District | Central Coast | Newcastle

HIGH PERFORMANCE HOMES

SYDNEYS NORTH SHORE | NORTHERN BEACHES| HILLS DISTRICT | CENTRAL COAST | NEWCASTLE

At Agathē, we believe a home should do more than just look beautiful – it should perform beautifully too. Our High Performance Homes are carefully designed and built to deliver comfort, health, efficiency, and long-term value. Using advanced building practices and superior materials, we create homes that are warm in winter, cool in summer, energy-efficient, and healthier to live in – all while minimising environmental impact.

Minimalist bedroom with a bed covered in a beige sheet, a black, white, red, and yellow blanket on top, a white wall with a large abstract black and gray painting, a modern gray lounge chair, and a small artwork on the right wall

Energy Efficiency

We integrate airtight construction, high-quality insulation, efficient glazing, and advanced HRV systems to significantly reduce energy consumption.

Health & Comfort

A healthier indoor climate with consistent temperatures, filtered air, and moisture control – protecting against mould and creating year-round comfort.

Durability

Built with superior materials and techniques, your home is designed to last with reduced maintenance needs.

Site-Specific Design

Each project makes the most of its location, optimising natural light, airflow, and thermal performance.

Sustainability Features

Options for renewable energy systems, water-saving fixtures, and sustainable materials reduce environmental impact while supporting modern lifestyles.

DISTINCTIVE QUALITIES

Looking up at a ceiling with a large, square skylight in the center, surrounded by white and gray walls and cabinetry.

Based on the Northern Beaches, Agathē proudly builds, renovates & extends high performance homes across Sydney’s North Shore, the Hills District, Central Coast, and Newcastle. Our deep local knowledge and proven expertise allow us to deliver solutions that reflect both the natural environment and the unique lifestyle of our communities.

A LOCAL BUSINESS

A person in a black hoodie and khaki pants walking towards a modern house with a wood and stone exterior, and white-framed window.

CLIENT-CENTRIC APPROACH

We understand that renovating, extending or building a new home is one of the biggest investments you’ll make. That’s why we work closely with you through every stage of the journey – from consultation and design to construction and handover. With clear communication, tailored planning, and a commitment to excellence, we make the process as smooth and rewarding as possible.

Modern kitchen with black cabinets and stainless steel appliances, woman preparing food at the counter, and a large window in the background.

PROFESSIONAL & EXPERIENCED

With years of experience and a reputation for quality, our team of builders, designers, and project managers bring integrity and precision to every project. Our craftsmanship, attention to detail, and innovative approach ensure your high performance home is built to exceed expectations.

Man in hoodie with gear by blue construction wall, architectural constructions by Agathe site

WONDERING WHERE TO START?

DISCOVER OUR SERVICES

Open sliding glass door to dining area with wooden table and chairs, potted plants outside, white siding, and small porch with wooden steps.

HOME RENOVATIONS

From partial to full-scale renovations, our services are designed to transform your existing spaces into stunning, family living environments.

Front view of a house with a blue front door and a small porch, surrounded by colorful flowering bushes and a well-maintained lawn.

CUSTOM EXTENSIONS

Expand your Northern Beaches Home with our bespoke extension solutions that seamlessly integrate with your home’s current design, enhancing both space and value.

Man standing in front of a painted van, wearing a hoodie with the word 'AGOTHÉ' on the back, lifting both arms. The van displays a large whale logo and partially visible text.

PRE CONSTRUCTION

Start your build the right way with our PAC-certified pre-construction process – a collaborative approach that aligns your design, budget, and timeline.

Person walking toward a modern house with wooden and stone exterior, wearing a black jacket, beige pants, and a gray cap, with shoes near the door.

ALTERATIONS & ADDITIONS

Refresh your existing space with thoughtful alterations and additions that enhance flow, functionality, and the way your home supports your lifestyle.

View through a window showing plants and bushes with pink and green foliage in a garden.

HEALTHY HOMES

Prioritise wellness and sustainability with our Healthy Homes approach – designed to improve air quality, light, and overall comfort in every corner.

Interior view of a modern living room and kitchen area at night, with several people preparing food and sitting around a dining table, illuminated by warm lighting, with large windows showing a dark sky and trees outside.

ARCHITECTURAL CONSTRUCTION

Bring your architect’s vision to life with precision. Our expert team delivers complex builds with clarity, care, and exceptional craftsmanship.

Two men in matching black t-shirts and shorts are standing in a bright, white kitchen, smiling and having a conversation.

PROJECT MANAGEMENT

From design to delivery, we manage every detail of your build to ensure a smooth, on-time, and on-budget build that reflects your vision.

Modern house exterior with large glass windows and black metal siding, with a landscaped yard featuring rocks and small plants, and trees with sparse foliage in the background.

GRANNY FLATS

Create flexible, modern living spaces with our custom-designed granny flats – ideal for multigenerational living, guests, or extra income.

A man kneeling on the ground installing a verticale support beam between a brick and stone wall, with a power drill in his hand and construction tools around him.

CHALLENGING SITES

No site too steep or complex – we specialise in building on challenging terrain with smart solutions that maximise space, access, and design potential.