Expand your home for the life you want
Feeling boxed in at home can make everyday routines a grind. Open up your space and you’ll find more ease, flexibility and flow built into each day.
Families across the Wellington region know the squeeze: mornings in a rush, limited privacy, odd spaces that are never quite right. Imagine swapping those pressure points for rooms with more space so they actually work for you – places to host friends, a quiet nook for hobbies or a calm spot to escape the noise and get some work done.
Cowley Construction builds extensions that let you breathe easier and help your home expand to fit the way you want to live. Through each part of your build, you'll see tidy work, straight talk and a clear sense of how things are tracking.
All the small details get attention, so your new, larger space feels like it has always belonged there, not bolted on as an afterthought. Every extension strengthens what you already like about your home, so you use it your way every single day.
Families across the Wellington region know the squeeze: mornings in a rush, limited privacy, odd spaces that are never quite right. Imagine swapping those pressure points for rooms with more space so they actually work for you – places to host friends, a quiet nook for hobbies or a calm spot to escape the noise and get some work done.
Cowley Construction builds extensions that let you breathe easier and help your home expand to fit the way you want to live. Through each part of your build, you'll see tidy work, straight talk and a clear sense of how things are tracking.
All the small details get attention, so your new, larger space feels like it has always belonged there, not bolted on as an afterthought. Every extension strengthens what you already like about your home, so you use it your way every single day.
Your house extension builder for spaces that upgrade daily living
- Extensions shaped to suit your life, making daily routines smoother and your home more comfortable to live in
- Transform your home’s flow, spread out with family and boost property value – all without the stress of packing up and moving
- Throughout Greater Wellington, you can count on house extensions built to stand the test of time.
House extensions are available throughout the Greater Wellington region, reaching Wellington City, Kapiti Coast and Lower or Upper Hutt.
Your house extension builder for genuine lifestyle upgrades
Extensions only really work when your everyday rhythms and priorities lead the design. Each part of the day – school runs, morning coffee or those big Sunday family gatherings – feeds into the planning.
If you want more elbow room, better flow from kitchen out to sun or a zone shaped just for you, those goals become the blueprint. The point is not empty promises, it is about showing exactly what an extension can give you in real life.
- Spaces join naturally so the whole home has rhythm
- Choose openness for family time or carve out a hidden spot for downtime
- The inside can blend with your deck or garden – whether that is for a barbecue, a quiet cuppa or somewhere for kids to run about
Everything is shaped around bringing balance back, not just chasing more square metres. You get a clear picture of what daily life might feel like, without the hassle of awkward layouts or rooms no one uses.
Seamless extensions that feel like they’ve always belonged
An extension should look as though it grew with your home, not like it has been plonked on the side. Real craftsmanship shows in rooflines that blend, joints that line up and cladding chosen right down to the grain.
From the way sunlight finds new corners to how easily you move room to room, the aim is always a finish so seamless you almost forget there has been a change.
Learn more about restoring period details in your extension.
From the way sunlight finds new corners to how easily you move room to room, the aim is always a finish so seamless you almost forget there has been a change.
- Roofs and claddings pull together so your home’s character stays intact
- Colours and finishes picked to match the heartbeat of your place
- Structure added thoughtfully, never disrupting how home should feel
Learn more about restoring period details in your extension.
Genuine craftsmanship and solid materials
Evidence of skill shows up in every corner. Materials are chosen to stand up to busy family life and Wellington’s wild weather, and you notice the difference in how everything holds up.
Good construction, neat finishing and no shortcuts mean your space is ready for real everyday living.
Find out more about our architectural builds.
Good construction, neat finishing and no shortcuts mean your space is ready for real everyday living.
- Framing and finishing so solid you simply trust it
- A fresh, complete feel with nothing rushed or half-done
- Only materials selected for years of use and every season’s mood swings
Find out more about our architectural builds.
Stay informed and focus on what matters
You stay in the loop from the moment things kick off. With Rave Build, our project management sortware, you can see schedules, track what is happening next and message any time for the details you need.
Updates arrive the way you prefer – WhatsApp, email or dashboard – so nothing slips through the cracks. You see each milestone, have room to ask questions and can call a catch-up whenever you choose.
Your extension is built safely, securely and up to standard. Every council requirement is managed for you, with all documentation submitted to the council on your behalf.
Cowley Construction is Totika/Impac Prequal rated, so safety sits at the core of every job – for your family and for everyone working at your place.
Updates arrive the way you prefer – WhatsApp, email or dashboard – so nothing slips through the cracks. You see each milestone, have room to ask questions and can call a catch-up whenever you choose.
Your extension is built safely, securely and up to standard. Every council requirement is managed for you, with all documentation submitted to the council on your behalf.
Cowley Construction is Totika/Impac Prequal rated, so safety sits at the core of every job – for your family and for everyone working at your place.
- Worksites are kept tidy and your space is genuinely respected
- Jobs finish to the agreed standard and are certified when it counts
- All routines are set up to protect your peace of mind and your property
Budget clarity and honest planning are always up front. You see exactly where your investment goes before anything is built. Costings are clearly broken down around your design, chosen materials and touches that matter to you.
Nothing is left to guesswork; each detail is explained and everything stays open. If you are ready to see how your Wellington home could be upgraded, use the extension enquiry form to start a conversation with Cowley Construction.
Nothing is left to guesswork; each detail is explained and everything stays open. If you are ready to see how your Wellington home could be upgraded, use the extension enquiry form to start a conversation with Cowley Construction.
Most extensions are complete in around 10 to 16 weeks after building starts. It depends on your house, your section and your plans, and you will always see the timeline ahead of time with check-ins to keep everything tracking.
Your final cost comes down to size, layout, chosen finishes and how simple or tricky site access is. The quote walks you through all costs line by line, with no padding and no fluff.
Yes. All permissions, consents and compliance checks are handled for you. Each update is explained in plain language so you are never left in the dark waiting on approvals.
Definitely. The starting point is always what you want. Whether you are widening your kitchen, creating a new lounge or carving out extra living space, you get honest design advice and ideas that flex to fit your lifestyle.
Get inspiration from our kitchen projects or the architectural builds experience.
You can expect some noise and areas out of bounds at certain points, but keeping your home neat and respected is always a focus. You receive regular updates and always know which days or rooms will see activity.
You can read more about how things are run on the About Cowley Construction page.