Northern Beaches home with blue door and garden after alterations & additions by Agathe

ALTERATIONS & ADDITIONS

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

ALTERATIONS AND ADDITIONS

SYDNEYS NORTH SHORE | NORTHERN BEACHES | CENTRAL COAST | NEWCASTLE

Transform your home with AGATHĒ’s expertly crafted alterations and additions. We focus on enhancing the spaces you already love, refining layouts, and integrating new features that complement your lifestyle. Whether it’s opening up a living area, adding a new room, or improving functionality, our team delivers designs that blend seamlessly with your Northern Beaches home, bringing beauty, comfort, and value to every detail.

Kneeling carpenter using nail gun on framing at site, alterations & additions by Agathe

OUR SERVICES

AGATHĒ offers a comprehensive range of alteration and addition services to transform and enhance your home. Whether you’re reconfiguring your floor plan, adding a new living space, or blending modern updates with your home’s existing character, our team is committed to bringing your vision to life. We work closely with skilled architects and craftsmen to ensure exceptional design, flawless integration, and construction quality that complements your Northern Beaches home.

White pergola and siding with plants, Agathe-led alterations & additions to outdoor area

LOCALLY CRAFTED, PERFECTLY TAILORED

Based in the Northern Beaches, AGATHĒ proudly delivers alterations and additions that suit the unique character of homes across the North Shore and Northern Beaches of Sydney. As your local building specialists, we understand the architectural styles, council requirements, and lifestyle needs of this vibrant coastal community. Our deep local knowledge allows us to create tailored solutions that blend seamlessly with your home while enhancing its beauty, functionality, and value.

Two men in bright white kitchen smiling; kitchen updated with alterations & additions, Agathe

A PERSONALISED APPROACH

At AGATHĒ, we prioritise your satisfaction throughout every alteration and addition. From the initial consultation to project completion, our team maintains clear communication and a meticulous eye for detail, ensuring your Northern Beaches home reflects your vision. Each project is tailored to your preferences, style, and budget—making the journey from concept to completion smooth, collaborative, and rewarding.

lderly woman reading with wine on sectional; living room by Agathe, alterations & additions

EXCELLENCE IN CRAFTSMANSHIP

At AGATHĒ, we place your satisfaction at the centre of every alteration and addition we create. From the first consultation to the final handover, our team ensures clear communication and meticulous attention to detail for your Northern Beaches home. Each project is carefully tailored to your needs, style, and budget, delivering a smooth, enjoyable journey from concept through to completion.

Workshop craftsman in beige cap shaping large timber piece, alterations & additions 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 cap and black jacket with 'AGATHÉ BUILDERS' text on the back is walking towards a modern house with a wooden exterior and stone wall details.

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 illuminated at night, with two people preparing food or drinks in the kitchen area, black leather chairs, a glass coffee table, and large windows showing a dark, cloudy sky 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 with black and white exterior walls, large glass windows, and a patio with stone flooring, 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.