Williamstown Renovation and Extension: Your Guide


Thinking of a renovation and Extension in Williamstown?

Lucky you’ve found our Williamstown Renovation and Extension Guide…

Have you ever looked around your Williamstown home and imagined the possibilities? Perhaps an extension that opens up your living space to the garden or a renovation that transforms your kitchen into a culinary paradise. Williamstown, with its unique blend of historical charm and modern vibrancy, offers the perfect canvas for such transformations. At Barnes & Matina, we specialise in turning these dreams into reality, guiding you through every step to realise your vision.

Why Consider a Renovation or Extension?

Renovating or extending your home is not just about adding space; it’s about enhancing your quality of life. For medium to high professional income earners in Williamstown, these changes can mean a home that better suits your lifestyle, increases in value, and even becomes more energy-efficient. Imagine creating extra room for your growing family or crafting that perfect home office space – the possibilities are endless.

The Barnes & Matina Difference

At the heart of our approach is a deep commitment to understanding you – your vision, how you live, and what you cherish. We pride ourselves on providing a personalised service from concept to building permit, focusing on creating spaces that resonate with your way of life on your unique piece of land. Our design philosophy is about more than just aesthetics; it’s about crafting environments that enhance human experience, making every moment at home special.

Drawing on our successful projects, such as the transformations at Bellaire Court and Davies St, we’ve demonstrated our ability to navigate the complex journey of creating bespoke homes that not only meet but exceed our clients’ expectations. While these case studies feature new builds, the principles of meticulous planning, client collaboration, and tailored design apply equally to renovations and extensions.

Our Process: Bringing Your Vision to Life

Initial Consultation & Design Brief: Your Williamstown Renovation and Extension journey begins the moment you reach out to us. We delve into your dreams, lifestyle, and the essence of what you seek from your renovation or extension. This stage sets the foundation for a project that truly reflects your desires.

Concept Development to Planning & Permitting: Our team translates your vision into conceptual designs, considering every aspect of your site’s potential and constraints. We refine these ideas with your feedback, ensuring the final plan is something you’re excited about. Navigating through planning and permitting, we ensure your project complies with all regulations, avoiding any potential hiccups down the road.

Tendering & Construction Oversight: Selecting the right contractor is crucial. We guide you through this process, leveraging our network of reputable professionals to find the perfect match for your project. Throughout construction, we’re your eyes and ears on the ground, managing every detail to ensure the finished product is exactly as you envisioned.

Why Williamstown Residents Choose Us

Our deep understanding of Williamstown’s unique architectural landscape and community vibe sets us apart. We know how to blend the new with the old, creating spaces that respect the area’s heritage while injecting modern functionality and style. Our clients, like Mark and Cheryl from Bellaire Court, and Roland and Sarah from Davies St, have experienced first-hand the benefits of our collaborative approach, resulting in homes that are not just buildings but sanctuaries that reflect their personalities and aspirations.

Making the Decision: The Value of Your Investment

Deciding to renovate or extend is a significant step, not just in terms of the physical changes to your home but also in the potential to enhance your lifestyle. It’s an investment in your future, creating a space that grows and evolves with you. Whether it’s adding value to your property or crafting the perfect backdrop to your life, the benefits of a well-planned renovation or extension are immeasurable.


Ready to transform your Williamstown home into the space you’ve always dreamed of? Take the first step today by reaching out to us at Barnes & Matina for an initial consultation. Let’s explore the possibilities together and start the journey to make your vision a reality.


let’s create, redefine, and elevate your living experience.


1. How much does a home extension cost?

The cost of extending your home can vary widely, influenced by numerous factors such as the project’s scope, the materials used, and site-specific considerations like access and complexity. Here’s a general guide to help you understand the potential investment involved and for a further breakdown see our Renovation and Extension Cost Guide:

– Standard Projects:

For extensions that utilise standard configurations, structures, and readily available materials, costs start at approximately $2,500 + GST per square metre. These projects can still boast architectural design, focusing on efficient use of space and materials in line with industry standards.

– Mid-Tier Projects:

When incorporating architecturally designed features and more luxurious specifications, costs typically range between $3,500 + GST and $4,500 + GST per square metre. These projects offer a balance between custom design elements and cost-effectiveness.

– Highly Specified Projects:

For those desiring the utmost in luxury and customisation, employing the finest materials and finishes, costs can range from $5,000 + GST to $10,000 + GST per square metre. These projects are distinguished by their unparalleled quality and bespoke design details.

It’s crucial to note that these figures cover the construction costs only. Additional expenses to consider include site preparedness, demolition, advanced technologies, basements, handling slopes, swimming pools, and landscaping.

While it’s possible to find building costs below $2,000 per square metre, such figures typically exclude professional architectural and interior design, potentially leading to below ideal outcomes. Thorough research on builders, including their qualifications and past work, is essential to ensuring a high-quality project.

Remember, each extension and renovation is unique, with costs varying based on individual project requirements and specifications. These estimates should serve as an indicative guide, underscoring the importance of a personalised consultation to accurately assess your specific project’s needs.

2. What should I consider before starting a renovation or extension?

Before embarking on your renovation or extension journey, it’s important to:
– Clearly define your goals: Understand what you want to achieve with your renovation or extension. Is it more space, modernisation, or perhaps increasing your home’s value?
– Budget: Have a clear budget in mind, including a buffer for unforeseen expenses.
– Design preferences: Collect ideas or inspirations that reflect your style and how you envision the space.
– Timeline: Consider the timing and how long you’re prepared for the project to take, keeping in mind potential disruptions to your daily life.
– Regulations and permissions: Be aware of local council regulations and whether your project will require planning permissions.

3. How long does a typical renovation or extension project take?

The duration of a Williamstown renovation or extension project varies significantly based on the project’s scope, complexity, and unforeseen challenges such as weather conditions or material delays. Generally:
– Standard projects might take 3-6 months from start to completion.
– Mid-tier and highly specified projects could range from 6-12 months, or even longer for very complex extensions involving high levels of customisation or challenges like difficult site access.

We emphasise transparent communication and detailed planning to give you a realistic timeline upfront, adjusting as necessary throughout the project.

4. Do I need to move out during the renovation or extension?

Whether you need to move out depends on the scale and nature of your Williamstown renovation or extension. For minor modifications, you might be able to stay in your home, with some adjustments to your living arrangements. For larger, more invasive projects, it may be more practical and comfortable to find temporary accommodation. Our team works closely with you to minimise disruption and make recommendations based on the project details.

5. Can Barnes & Matina help with obtaining permits and navigating council regulations?

Absolutely. Part of our comprehensive service includes managing the planning and permitting process on your behalf. We have extensive experience in navigating the complexities of local council regulations and will ensure that all necessary documentation is prepared and submitted correctly, streamlining the approval process for your project.

6. How Does Barnes & Matina Deliver Excellent Design Outcomes?

At Barnes & Matina, we pride ourselves on our ability to deliver exceptional design outcomes for each of our clients, transforming their visions into reality with precision, creativity, and care. Here’s how we ensure excellence in every project:

– Personalised Consultation:

Our journey begins with a comprehensive consultation to deeply understand your vision, lifestyle, and specific needs. This foundational step ensures that our designs are not only beautiful but also highly functional and tailored to your way of living.

– Collaborative Design Process:

We believe in the power of collaboration between our designers, clients, and, when necessary, external consultants. This approach allows us to refine our designs continuously based on your feedback, ensuring the final outcome is exactly as you envisioned.

– Expertise and Experience:

Our team is composed of highly skilled architects and designers with extensive experience in a wide range of projects. This depth of knowledge enables us to navigate challenges creatively and deliver innovative solutions that stand out both aesthetically and functionally.

– Attention to Detail:

From the initial sketches to the final touches, our design process is meticulous. We pay close attention to every detail, ensuring that materials, finishes, and architectural elements come together seamlessly to create spaces that are not only visually stunning but also resonate with the people who inhabit them.

– Sustainability and Practicality:

We strive to incorporate sustainable design principles and practical solutions into our projects. By doing so, we not only enhance the comfort and usability of the spaces we create but also contribute to their long-term viability and environmental friendliness.

– Regulatory Compliance and Innovation:

Navigating building codes and regulations is a critical aspect of architectural design. We are adept at creating designs that not only comply with all relevant laws and standards but also push the boundaries of innovation, ensuring that our projects are both safe and cutting-edge.

– Use of Technology:

Leveraging the latest technology, including 3D modelling and virtual reality, allows us to bring our designs to life before construction begins. This not only helps in visualising the final outcome but also in making informed decisions and adjustments early in the process, saving time and resources for your Williamstown Renovation and Extension project.

In summary, Barnes & Matina’s commitment to excellence in design is driven by our client-centric approach, collaborative ethos, and relentless pursuit of quality and innovation. Whether you’re looking to renovate your home or embark on an extension project, our team is dedicated to delivering design outcomes that exceed expectations, reflect your unique style, and enhance your way of living.


Ready to transform your Williamstown home into the space you’ve always dreamed of? Take the first step today by reaching out to us at Barnes & Matina for an initial consultation. Let’s explore the possibilities together and start the journey to make your vision a reality.


let’s create, redefine, and elevate your living experience.