GRANNY FLATS
THORNLEIGH
AGATHĒ builds quality granny flats in Thornleigh, bringing expert craftsmanship and a genuine appreciation for this peaceful, family-loved suburb to create spaces that add real value and work beautifully for the way your family lives.
GRANNY FLATS IN THORNLEIGH
See how we turn generous backyard spaces into beautiful, self-contained homes. Our granny flat builds are thoughtfully designed, carefully finished, and built to sit naturally alongside the character of Thornleigh homes — creating practical, elegant spaces for family living, guests, or rental income.
WONDERING WHERE TO START?
Thornleigh is the kind of suburb that draws families in and keeps them there. Large blocks, lush gardens, a quiet pace of life, and a genuine community feel make it one of Sydney's most loved and tightly held neighbourhoods on the Upper North Shore. Properties here have real space to work with, and that's exactly what makes them so well suited to a thoughtfully designed granny flat. Whether you want a comfortable, independent space for ageing parents, a private retreat for adult children, a peaceful home office set apart from the main house, or a quality rental in a suburb with strong and steady demand — we'll design and build something that fits right into Thornleigh and adds genuine, lasting value to your property.
DISCOVER OUR SERVICES
HOME RENOVATIONS
From partial to full-scale renovations, our services are designed to transform your existing spaces into stunning, family living environments.
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.
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.
ALTERATIONS & ADDITIONS
Refresh your existing space with thoughtful alterations and additions that enhance flow, functionality, and the way your home supports your lifestyle.
HEALTHY HOMES
Prioritise wellness and sustainability with our Healthy Homes approach – designed to improve air quality, light, and overall comfort in every corner.
ARCHITECTURAL CONSTRUCTION
Bring your architect’s vision to life with precision. Our expert team delivers complex builds with clarity, care, and exceptional craftsmanship.
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.
GRANNY FLATS
Create flexible, modern living spaces with our custom-designed granny flats – ideal for multigenerational living, guests, or extra income.
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.