5 Must-Do's Before Extending Your Home

21 January 2025

When you start to feel like your home needs more space, it's time to consider your options. You could move, however this can be an expensive and disruptive process resulting in a new home that still needs renovations to fit your family's needs. That is why many homeowners choose to extend their existing home!


Extending your home brings great physical, emotional and financial rewards. More space for you and your family and increased equity in your home are only two of those benefits. Before you dive in though, check out our 5 must-do's before undertaking the home extension process.

single level home with deck
second storey extension

1.Be clear about your reasons for choosing an extension

It sounds simple, but have you clarified the exact reasons why you would like to add an extension to your home and have you reviewed all options for reducing cost by making better use of the existing footprint?


It's important to consider not only what your families needs are right now but also how these could change and evolve over the next 5, 10 or 20 years. Your ideal extension could be as simple as adding a bedroom or two for your expanding family or could look to rework living areas to embrace open plan living and indoor-outdoor flow. Focus on understanding your 'why' and this will inform what extension or extension type will be the best fit.

2. Decide on what type of extension you want

Typically a home extension alludes to extending your home outwards, and this is typically the most affordable solution. However if you don't have the space to do this there are some great alternatives to consider such as extending upwards and adding another storey. While more complex and expensive than extending outwards it allows you to maintain your existing footprint while gaining more living space, allows you to keep any existing outdoor living spaces and can create some stunning views.


Another option is to extend down into a basement if you have one. Basement conversions can be another cost effective way to create more space without increasing your homes footprint.


Last but certainly not lease you could consider building a completely or partially separate building on your land, for instance, creating space for inter-generational living or adding space for a short-term rental income, etc. Click here to browse our range of homes designed as 2nd dwellings.

3. Have your finances sorted

While extensions offer a great return on investment in terms of improving your home's value they don't come cheap. Unless you have the funds to pay in full, securing lending from your bank will be essential. It's wise to have an early conversation with the bank to get indication of how much you will be able to borrow optimize your design to achieve as much as you can within that budget.


Once it's time to officially apply for lending ensure you have a detailed quote including a schedule of payments to be made – your bank will likely required such documentation. The progress claim schedule, alongside a work schedule/plan is critical to ensure you do not get financially exposed by paying large deposits or ahead of the progress of the work.

family home on two levels
third storey extension

4. Consider the design

Extending an old-style state house is normally a completely different proposition from extending a more modern home. In most cases, we would recommend ensuring your extension works well with the original home, both in function and design. If you can replace like with like, the extension will look seamless. But in cases where that's not feasible, smart design can marry contemporary with classic in a way that both changes and enhances the home's character. A great way to ensure you get this balance right in the design stage is to invest in 3D modelling to so you can see in photo-realistic detail how your to-be extended home will look before construction even begins.

5. Choose the right builders

When you add an extension, you are going to need to use a Licensed Building Practitioner. This is because it will involve working with both the structural integrity and weather tightness of your home. An LBP will need to be involved right from the start when you begin the design process through till final handover. Pzazz Builders are Licensed Building Practitioners and this means you can rest easy, knowing the job will be done to the highest standards.


Ready to get the ball rolling on your home extension? Get in touch to book your free in-home consultation with your local Pzazz home renovation specialist. We look forward to talking with you!

Like more home inspirations, ideas and tips?

Subscribe to our Come Alive! Newsletter

It's FREE and comes to you via email every month providing informative articles, tips and ideas!

Newsletter Form

Visit our FREE E - Library

visit pzazz building e library

Have you thought about renovating but don't know where to start? Browse and download a variety of E-Books and other resources that cover tips and tricks, latest trends and renovation processes.

VISIT THE E - LIBRARY NOW
by Web Wonks 23 September 2025
The sun is finally out, the days are getting longer, and the last of winter's chill is a distant memory. For many of us, this time of year brings a renewed sense of energy and a desire to get outside and enjoy the beautiful New Zealand spring and summer. But after months of being cooped up indoors, you've probably noticed a few things about your home. Maybe the kitchen feels a bit cramped, the living room struggles to accommodate your family, or you simply crave more breathing room. This feeling of confinement is a common one, and it's the perfect catalyst for change. Rather than waiting until next year's cold snap hits to realise you need more space, now is the ideal time to start planning a home renovation . A lot of people don’t realise that it often takes 3-4 months from the initial conversation with a designer to when any actual building work can begin. That means starting now is the key to enjoying a more spacious, functional home well before next winter. The Problem: Not Enough Space It’s easy to feel like you don’t have enough space. Maybe you've got a growing family, you're now working from home, or you simply have more things than your house can comfortably hold. The issue isn't always about the total square meterage; it's often about how the existing space is used. Poor layouts, wasted nooks, and inefficient storage can make even a decent-sized home feel cluttered and restrictive. During winter, when our homes become our primary sanctuaries, these issues become more obvious. The kitchen counter that's always piled high with stuff, the hallway that’s a constant bottleneck, or the lack of a quiet spot to read - all of these can add up to a feeling of frustration. The goal of a good renovation isn't just to add a new room; it's to create a home that flows, functions, and serves your lifestyle better.
by Web Wonks 20 August 2025
Why September is the Ideal Time to Plan September is a turning point. While winter is still lingering, spring is just around the corner. This makes it a smart time to start planning renovation projects before the busy summer months arrive. Contractors and suppliers often book out early in the season, so getting ahead ensures your space is ready to enjoy when the sun really shines. It’s also easier to assess what your home needs now, after months of being indoors, you’ve probably noticed areas that could use improvement, like a lack of natural light or poor flow to outdoor spaces. Creating Indoor - Outdoor Flow A home that connects easily with the outdoors feels larger, brighter, and more inviting. Good indoor-outdoor flow isn’t just about adding a sliding door; it’s about creating a natural extension of your living space. Creating Indoor - Outdoor Flow A home that connects easily with the outdoors feels larger, brighter, and more inviting. Good indoor-outdoor flow isn’t just about adding a sliding door; it’s about creating a natural extension of your living space. Key Considerations: Doorways and Access: Bi-fold or stacker doors can open wide to connect your living area with a deck or patio. Floor Levels: Minimising steps between inside and outside creates a smooth transition. Layout: Think about how furniture is placed inside and how it relates to outdoor spaces. A thoughtful design can make everyday living more enjoyable and enhance the way you entertain guests.
by Libby Sims 30 July 2025
Wondering what sets a home renovation specialist apart? Discover the expertise of Pzazz Building in delivering successful renovation projects.
by Libby Sims 25 June 2025
How accurate were our 2025 kitchen predictions? See how trends have evolved in kitchen design. Reach out to Pzazz Building for your next kitchen renovation.
Granny
by Libby Sims 27 May 2025
Learn about the latest granny flat legislation in New Zealand. Discover how Pzazz Building can help you navigate the legalities for your renovation project.
Renoavting and old home
by Libby Sims 23 April 2025
Renovating an older home can be tricky. Discover key considerations for a successful renovation project with Pzazz Building. Get expert advice today.
A kitchen with black cabinets and a black granite counter top.
by Libby Sims 18 March 2025
Transform your kitchen with these 7 must-have features. Pzazz Building helps you create your dream kitchen. Let’s plan your renovation today.
A dining room with a long wooden table and chairs
by Libby Sims 17 March 2025
The dining room is a space for more than just meals. Discover how a well-designed dining room can enhance your home with Pzazz Building’s expert tips.
by Libby Sims 20 January 2025
We spend more than half our time in homes but we almost always go somewhere else for our health and wellbeing – the gym, a spa, a massage clinic. Why? Have you ever stopped to think about how your home could better support your family’s health? Here are our tips on revitalising your own space so you can revitalise yourself.
by Libby Sims 9 December 2024
We’ve all done it – seen a piece of furniture or kitchen we like in a showroom, only to find when we get it home or install it that it just looks wrong. Or have you made a massive decorating mistake without even realizing it? There are lots of common mistakes to avoid. Here are 10 of them.
Show More