Add more space to your home with thoughtful extensions that seamlessly blend with your existing structure.
Transform your living environment with a well-designed home extension that adds both space and value. Whether you’re planning a new wing, a second storey, or simply expanding your living area, we provide intelligent design, building-ready documentation and local knowledge to bring your extension vision to life.
Your local home extension design specialist in the Waikato
Designing an extension requires careful planning to ensure the new space ties in seamlessly with the original structure. From matching rooflines and cladding to navigating structural constraints, our team understands the unique challenges of extending older and modern homes across the Waikato.
Whether you live in Hamilton, Tamahere, Cambridge, or anywhere in the region, we create extension designs that look right, feel right, and add long-term value.
We support a wide range of extension projects, including:
Rear and side home extensions
Second-storey additions
Bedroom, ensuite, and office additions
Living room and family space expansions
Kitchen or dining room extensions
Indoor–outdoor flow improvements
Lifestyle block and rural extensions
Why extend with Waikato Architectural Services?
Practical, buildable designs
Our concepts are designed with construction in mind, no over-engineered ideas or unnecessary complexity. Everything we create is realistic, achievable, and suited to your budget.
Experience with structural challenges
Extensions often require altering load-bearing walls, foundations, or rooflines. We understand these complexities and design around them to ensure a smooth build.
Local expertise you can trust
We’re familiar with Waikato building styles, council requirements, and local construction methods, so your design is aligned with what’s feasible for your home and site.
Smarter flow for daily living
A well-designed extension doesn’t just add space, it improves functionality, light, movement, and how your home works day-to-day.
A smooth, guided process
From your first conversation through to builder-ready plans, we make the process clear, simple, and stress-free, so you always know what comes next.
Considering a renovation instead?
If you’re searching for “house extension ideas” or “architects near me for house additions”, we can help you explore whether an extension or a reconfiguration will give you the best outcome.
Sometimes reworking the layout is more cost-effective. Other times, adding new space opens up the perfect solution.
The Process
Initial consultation
We visit your home, understand your goals, review your existing structure, and discuss what’s possible for your site and budget.
Concept design
We create clear, functional design concepts that integrate seamlessly with your current home while giving you the space you need.
Detailed Documents
Once the concept is approved, we prepare detailed drawings and assist with all building consent requirements.
Builder-ready plans
Your builder receives clear, accurate documentation that supports efficient pricing and a smoother construction process.
Support during construction
We remain available to answer questions and ensure the final build follows the design intent.
FAQs
Do I need an architect for a home extension?
No, you don’t need a registered architect. As Licensed Building Practitioners (LBPs) and experienced architectural designers/draftsmen, we provide all the design concepts, technical drawings, and build-ready documentation needed for your home extension.
Can you help with both small and large extensions?
Yes, no job is too small. Whether you’re adding a single room or planning a full second-storey addition, we design extensions of all sizes.
Do you work with builders?
Absolutely. We can work alongside your preferred builder or recommend trusted local professionals. We also remain available throughout the build to answer questions.
Do you handle council consents?
Yes, we prepare all drawings and documentation required for building consent and help guide you through the process.
How long does the extension design process take?
Timeframes depend on the size and complexity of your project, but we provide a clear timeline after the initial consultation so you know exactly what to expect.
Ready to extend your home?
If you’re planning a home extension in Hamilton, Tamahere, Cambridge, or anywhere in the Waikato, we’d love to help create the space you need.
Contact us today to book your consultation.







