House Extensions
 Wellington

Plan Your Home Extension in Wellington & Kāpiti with NZ Proud

THE HIGHEST STANDARDS OF CRAFTSMANSHIP AND INNOVATION IN NEW ZEALAND

If you love where you live but your home no longer suits your lifestyle, a house extension can be a practical way to create the space you need. Whether your family is growing, you need additional bedrooms, or your home needs better flow and functionality, a well-planned extension can dramatically improve how you live day to day.

House Extensions

Extensions allow you to adapt your home to suit changing needs while making the most of the space you already have.

At NZ Proud, we specialise in home extensions across Wellington and the wider Kāpiti region. From small extensions through to major additions, we help homeowners create practical spaces that work for their families and their lifestyles.

Because we’re a local team, we know the quirks of Wellington and Kāpiti homes, from steep hillside sites and narrow access to coastal weatherproofing challenges. Over the years we’ve worked on hundreds of homes across the region, so we know what to anticipate and how to plan for it.

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Wellington & Kāpiti Home Extension Specialists

At NZ Proud, home extensions and alterations are at the core of what we do. We specialise in designing and building high-quality house extensions across Wellington, the Hutt Valley, Porirua, and the Kāpiti Coast, helping homeowners create more space, improve functionality, and add long-term value.

Every home and every family is different. Over the years, we’ve delivered hundreds of renovation and extension projects across the region, working on everything from character villas and tight inner-city sites to coastal homes and modern family builds.

Specialists in Extending Existing Homes

Building a home extension is very different from a new build. It requires careful planning, structural expertise, and a deep understanding of how to work within and around an existing home.

Our team knows how to:

  • Integrate new spaces seamlessly with your existing home
  • Navigate structural challenges and council requirements
  • Plan ahead to avoid costly surprises during construction
  • Deliver practical solutions that work for your layout and budget

Because we specialise in extensions and alterations, we know how to unlock the full potential of your home and how it works day to day.

Types of House Extensions We Deliver

We design and build a wide range of home extensions across Wellington and Kāpiti, including:

  • Additional bedrooms for growing families
  • Kitchen and living extensions
  • Open-plan living transformations
  • Master suites with ensuites and walk-in wardrobes
  • Bathroom additions and upgrades
  • Indoor-outdoor flow improvements
  • Home offices and flexible living spaces
  • Garage conversions and new rooms
  • Sustainable and energy-efficient upgrades

Built for Wellington & Kāpiti Homes

We understand the unique conditions of building in the Wellington region, from wind exposure and coastal environments to older housing stock and varied site constraints.

NZ Proud is known across Wellington, the Hutt Valley, Porirua, and the Kāpiti Coast for delivering well-planned, high-quality home extensions that feel like a natural part of the original home.

Our Home Extension Process

From early planning through to construction and completion, we guide you through the entire process.

Every project starts with a consultation with the Managing Director who will take the time to understand your ideas and provide practical advice on what is achievable.

Here's what to expect:

  1. Initial consultation and feasibility advice
  2. Connecting you with experienced architectural designers or collaborating with your own 
  3. Concept planning and design coordination
  4. Two-stage pricing: a preliminary estimate in the middle stage of design to assist in determining the budget and final pricing with consent ready plans
  5. Council consent coordination
  6. Construction
  7. Project management
  8. Handover completion & compliance
  9. On-going maintenance and after care

From the first consultation through to completion & after, NZ Proud provides the experience and support needed for a well-managed renovation.

If you'd like to have an initial conversation with our experienced renovation team, get in touch here.

Why Choose NZ Proud for Your Extension?

At NZ Proud, we deliver high-quality house extensions across the Wellington and Kāpiti Coast, with a focus on clarity, craftsmanship, and a smooth experience from start to finish.

Here’s what sets us apart:

  • Specialists in Home Extensions & Renovations
    We focus on extensions and renovations, giving you a team that understands the complexities of adding to and improving existing homes.
  • Locally Owned Wellington & Kāpiti Builders
    Based in the region, we understand local council requirements, site conditions, and the unique needs of homes across Wellington and the Kāpiti Coast.
  • Proven Track Record Across Hundreds of Projects
    From simple extensions to complex renovations, we’ve successfully delivered projects of all sizes.
  • Experienced with Complex Builds
    We confidently manage structural changes, tight sites, and challenging designs solving problems before they become delays.
  • Licensed & Qualified Building Team
    Our licensed builders and experienced project managers ensure your extension is built to the highest standards.
  • End-to-End Project Management
    We handle everything from planning through to completion, making the process straightforward and stress-free.
  • Real-Time Project & Budget Tracking
    Our client portal gives you full visibility over progress, timelines, and budget so you’re always in the loop.
  • Trusted Network of Local Subcontractors
    We work with proven Wellington and Kāpiti trades to maintain quality and consistency across every project.
  • Practical, Budget-Conscious Solutions
    We design and build extensions that balance ambition with smart, cost-effective decisions.

If you'd like to have an initial conversation with our experienced renovation team, get in touch here.

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House Extensions
Frequently Asked Questions

Do you provide project management?

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Yes. NZ Proud provides a qualified Project Manager and experienced site Foreman to scope, and manage your project from start to finish.

How long does a renovation or extension usually take?

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Project timeframes vary depending on size and complexity. Smaller alterations may take a few months, while larger extensions or additions can take longer. NZ Proud provides realistic timeframes during the planning stage so you know what to expect.

What financing options does NZ Proud offer?

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NZ Proud can work with a local mortgage broker who can help advise on your budget and financial plan for any renovation project. It's recommended you discuss your financial position prior to engaging any builder as it's a critical piece of information to provide accurate advice.

Do you offer design services or do I need to hire an architect first?

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We partner with experienced architectural designers and manage the design process for you. You don't need to engage an architect separately — we guide you through the entire process or can collaborate with your own chosen designer.

How do I start the renovation process?

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Make sure you start by selecting the right builder. Credibility, experience and service is crucial from the start and throughout your renovation journey.

Your first consultation with NZ Proud is carried out by a qualified and licensed Contracts Manager whose primary goal is to gather information and give you advice on your vision so you have the right information to make informed decisions. You can get started by contacting us here, and answer all the prompted questions as best you can, and we'll book a site visit at the earliest convenience.

Are your builders licensed and qualified?

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Yes. All of our builders are fully qualified, licensed, and part of the NZ Proud team — not subcontractors. A Licensed Building Practitioner is registered and has credibility that they can provide enough experience to complete required work within the legislative requirements of their LBP accreditation. NZ Proud's carpenters are not only qualified carpenters, but all hold up to date LBP in Carpentry.

Do you offer a guarantee on your work?

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Absolutely. NZ Proud are members of the Master Builders association and can offer our clients the comprehensive 10 year Master Build guarantee. Our NZ Proud Guarantee includes a low-risk billing process, workmanship warranty, and 10-year implied warranties under the Building Act.

How early should I talk to a builder?

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It's best to involve a renovation builder early in the planning stage. NZ Proud can provide practical advice and early cost guidance before plans are finalised, helping avoid costly redesigns later.

Do I need building consent for a home extension?

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Yes, in most cases building consent is required. NZ Proud can help you understand the requirements and guide you through the consent process.

How much disruption should we expect during renovations?

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All renovations involve some disruption, but careful planning helps minimise the impact. NZ Proud works with homeowners to plan projects in a way that keeps the home as functional as possible.

Can you help us plan a renovation that fits our budget?

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Yes. NZ Proud provides early pricing guidance during the design stage so you can understand what is achievable within your budget.

Two men in black shirts inspecting the exterior wall of a modern white corrugated metal building with a gravel driveway.

Getting started

Get in touch

Contact us for a consultation with one of our qualified licensed builders who can talk through your vision, answer your questions, and provide an estimate.