GRANNY FLATS
COLLAROY
AGATHĒ builds quality granny flats in Mona Vale, bringing expert craftsmanship and Northern Beaches knowledge to create spaces that add value and work for your lifestyle.
GRANNY FLATS IN COLLAROY
See how we turn backyard spaces into beautiful, self contained homes. Our granny flat gallery shows careful building, modern design, and how we blend new structures with your existing property, creating practical solutions for family living, guests, or rental income with quality finishes and clean design.
WONDERING WHERE TO START?
Stretching along one of the Northern Beaches' most iconic stretches of coastline, Collaroy offers vibrant beachside living with a long sandy beach, rock pool, and strong community spirit. Many homes, from original beach cottages to modern coastal residences, sit on generous blocks with excellent development potential. Whether you need a compact studio, a spacious two-bedroom home, or a dedicated office space, we design and build granny flats that embrace Collaroy's relaxed coastal character while creating independent living that adds comfort, function, and property value.
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.