This range is a guide. Your final cost will depend on your site, your goals, and local requirements. Book a free site visit to get accurate pricing—no guesswork.

Get An Estimate For Your

Home Addition In 60 Seconds

Tell us about your vision—we’ll give you a tailored estimate for your Home extension or addition project.

What type of addition are you planning?

Let us know how you're looking to expand your home.

Will a bathroom be included in the addition?

This helps us plan plumbing and layout needs.

Will a kitchen or kitchenette be included?

Let us know if you're planning to add a cooking area.

What is the approximate size of your addition (in square meters)?

Please enter a number only.

Guide:

One Bedroom = 12sqm

Living room = 28sqm

Average second story addition = 46sqm

2 Bedrooms, Living & Bathroom = 75sqm

What level of finish do you prefer?

Choose your desired material and interior quality level.

Are you the property owner or authorized to make changes?

We require permission to proceed with planning.

When would you like to get started?

Let us know your ideal timeline for the addition.

Have you selected a designer or architect?

Let us know if you've already started planning your design.

Do you already have completed plans?

If you have architectural or design plans, we can review them.

Do you have financing in place?

Understanding your financial readiness helps us plan next steps.

What’s your estimated budget for the addition?

Share your expected budget range so we can tailor a realistic plan.

Please share your basic contact details:

Enter your details so we can send your custom home estimate.

Where is your property located?

Tell us the site location of your future home addition.

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Let's discuss your project and see how it can be brought to life

Call Us Today

Open Hours

8 am-5 pm to 7:30 am-4:30 pm

Our Services

What Services We offer

High Performance Homes

We build bespoke architectural homes with precision and care. From plans to handover, you get craftsmanship, clear process, and lasting quality.

Bespoke Renovations and Extensions

We transform existing homes with tailored renovations and seamless additions. You get improved flow, stronger structure, and refined finishes.

Design and Build

We manage your project from concept to completion with trusted local architects. You get efficient planning, controlled budgets, and smooth delivery.

About Us

Lifestyle Renovation Specialists, Architectural Builders

When I started Hills Carpentry, I built on existing relationships to secure labour-only contracts. This experience quickly taught me the importance of being the main contractor to ensure smooth operations and strong relationships with clients and construction partners.

I have a passion for operating a well-organised site and meticulous planning, ensuring seamless transitions between project stages. My commitment to excellence is reflected in every project I undertake.

Running the business is a family affair, with my wife Amanda managing the administration side while I focus on site operations and procurement. When I'm not on the tools or in the office, I love spending quality time with my three children, Ariella, Noah, and Olivia. Whether it's biking or exploring through orienteering, family time is always cherished.

Malachi Hills
Director / Owner

Call us on:

Location:

Wigram Christchurch 8025

Hours of work:

8 am-5 pm to 7:30 am-4:30 pm

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