Modern house exterior with large glass windows and metallic siding, surrounded by trees and landscaping.

GRANNY FLATS

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

GRANNY FLATS

At Agathē, we design and build modern granny flats that are stylish, functional, and perfectly suited to your property. Whether you’re looking to create space for family, provide private guest accommodation, or generate additional income, our custom-built granny flats deliver comfort and value without compromise.

Each project is tailored to your needs, with clever design solutions that make the most of your land while ensuring your new space blends seamlessly with your existing home.

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

View of a modern ceiling with a large rectangular skylight, white walls, and cabinetry.

We combine design creativity with practical construction expertise to ensure your granny flat is functional, stylish, and built to last. Our process includes:

  • Custom Design – Tailored layouts and finishes to suit your lifestyle, budget, and property.

  • Smart Space Planning – Making compact spaces feel open, efficient, and comfortable.

  • Quality Materials – Built with durable finishes for long-term performance.

  • Compliance & Approvals – Managing council approvals and regulatory requirements on your behalf.

  • Seamless Integration – Designing to complement your home’s style and setting.

OUR APPROACH TO GRANNY FLATS

Minimalist bedroom with white walls, black ceiling, and wooden floor. A large abstract black and white artwork is centered on the wall. There is a bed with light-colored bedding and a multicolored throw. A modern gray lounge chair with a curved backrest and a black cushion are in the corner, and a small abstract painting is hung on the wall near the chair.

A LOCAL BUSINESS

Based in the Northern Beaches, Agathē proudly builds granny flats across Sydney’s North Shore, Hills District, Central Coast, and Newcastle. Our local knowledge ensures your project meets council guidelines, maximises site potential, and suits the character of your neighbourhood.

Two men in AGATHÉ tees smiling in bright hallway, arms crossed during custom Agathe extensions

CLIENT CENTRIC APPROACH

We understand that building a granny flat is an investment in your property and lifestyle. That’s why we prioritise clear communication, personalised design, and a smooth construction process — so you can enjoy peace of mind from start to finish.

Modern black kitchen with a woman preparing food at the countertop, stainless steel appliances, and a large window behind the sink.

PROFESSIONAL & EXPERIENCED

With years of experience delivering custom builds, our team is skilled in creating versatile, high-quality granny flats that exceed expectations. We bring the same standard of craftsmanship and care to every project, no matter the size.

Man in beige cap and AGATHÉ tee shaping large wood piece in workshop, extensions custom by Agathe

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.

A man wearing a black jacket with 'AGATHÉ BUILDERS' printed on the back, khaki pants, and a baseball cap, walking toward a modern house with a wooden exterior, stone accents, and large windows.

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 of a modern living room with a view of the night sky outside, featuring a dining area, black leather chairs, a coffee table, and contemporary artwork on the walls.

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 with black and white exterior and large windows, surrounded by trees and greenery.

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.