How Much Does a Conservatory Increase House Value in Christchurch?
August 8, 2025
min read

If you are wondering how much a conservatory is worth in Christchurch, then you are not alone. As one of the most frequently asked questions here at Number One Windows and Doors, this answer will ultimately vary depending on certain factors — location, quality of construction, type of window/door frame choice and how complimentary it is to your home.

Homeowners in Christchurch and Canterbury know just how significant a well-made custom conservatory can be — and not only to lifestyle, but as an investment if you decide to sell your property sometime in the future.

So, here is what you actually need to consider before signing up for one.

So, To Answer the Question: How Much Does a Conservatory Increase House Value in Christchurch?

In short, yes: a well-designed, properly constructed conservatory in Christchurch can add value to your home by 5% to 10%.

This could potentially increase the resale value of your home by a whopping $40,000 to $80,000. And that is far from fluff — it is supported by anecdotal evidence directly from the coalface of local agents and valuers.

But it’s not guaranteed. All of this depends on not just how well your conservatory is constructed and how it complements your home, but also if it fulfils its purpose as a usable, attractive living space.

A cheap, tacked-on sunroom? Probably not adding much.A light, warm, and beautifully designed conservatory? That’s a different story.

What Christchurch Buyers Look for in a Conservatory

Having now conducted thousands upon thousands of open homes right across Christchurch and wider Canterbury, buyers today are interested in only a limited number of things:

  • Great for wintertime and so well lit (it is meant to be a penthouse after all!)
  • More time to use it year-round — if you add insulation and double glazing
  • Energy-efficient materials like aluminium joinery
  • More living area without disrupting the flow of the home

Even more, the conservatory speaks to potential home buyers — figuratively speaking — saying: we’re taking care of this house, and you can picture yourself living here right now.

Cost vs Value of Building a Conservatory in Christchurch: What’s the ROI?

So how do they compare in terms of cost vs value of building a conservatory in Christchurch?

Conservatories are typically priced from just under $20,000 to around $50,000 and beyond, depending on size, materials, and how complex they are built. It may seem like a large sum, but compared to the price of an entire home extension — or the bill for moving to a larger house — it is often very good value.

Particularly, if in the end it raises your own home value even higher than you paid for it.

But if I have to draw a line, find the sweet spot in quality vs cost — that’s where we come in.

At Number One Windows and Doors, we use only the best quality aluminium joinery and consult with a network of suppliers so that every conservatory we install provides genuine, lasting value – in terms of lifestyle and resale.

Well-Liked Conservatory Designs for Canterbury Properties

Conservatories vary, and what suits Canterbury’s weather and climate may not work as well in Auckland or Queenstown.

Here are some popular styles in Christchurch we’ve found over the years:

  • Lean-to Conservatories
    Suits smaller homes or even townhouses. Simple, elegant, and affordable.
  • Victorian or Edwardian Styles
    Excellent for homeowners hoping to maintain an old world, character home aesthetic.
  • Contemporary Enclosed Rooms
    Minimal framing with large aluminium sliding or bifold doors — ideal for open-plan homes.

Every home is different, which is why we provide fully customised conservatory design in Christchurch, tailored to how you plan to use the space — eating area, sunroom, pastime studio or indoor garden.

True Stories: Conservatories That Added Value to Homes

We’ve had clients come back to us, years after they sold up and moved on, telling us their conservatory was one of the reasons a new family bought their home.

  • In Halswell, one couple built a new conservatory with double-glazed aluminium windows and thermal roofing. Their open homes were full of “wow” moments, and they sold well over valuation.
  • In Kaiapoi, another customer created a winter lounge and summer kids' play area conservatory — inspired by stories about the property value impact of conservatories in Canterbury.

These aren’t one-off stories. That’s a tough pill to swallow if you’re competing in today’s smart design market — and one reason why adding a conservatory to a home in Christchurch NZ is often a winning move.

Should You Add a Conservatory Before Selling?

A conservatory could be a shrewd investment when it comes to selling in the next year or two — but only if:

  • It’s high-quality and well-insulated
  • It matches your home’s style
  • It adds practical, useable space

Have a limited budget? Talk to us first.
We can help guide you through the process of adding a conservatory to your Christchurch home, tailored to your needs.

On the other hand, plenty of homeowners want to enjoy their conservatory now and cash in later. That’s a win-win.

Christchurch Conservatories | Aluminium Joinery is the Smart Choice

We always talk about value — and aluminium joinery is impossible to ignore.

Why Aluminium is Ideal for Canterbury Homes:

  • Strength: It stands up against severe Canterbury winters & scorching summers
  • Low Maintenance: No repainting like timber
  • Aesthetic Compatibility: Whether you live in a classic Craftsman or Colonial-style house, aluminium joinery blends beautifully with both traditional and modern looks
  • Energy Efficient: Especially when installed with double or triple glazed units

For years, we’ve been regarded as a trusted name in aluminium joinery conservatories in Christchurch — and there’s a reason our customers keep coming back. It provides them with peace of mind and an excellent return on investment.

Do Christchurch Homeowners Benefit from a Conservatory?

So, back to where we come in:
Is a conservatory worth it for Christchurch homeowners?

If you’re looking for:

✅ More livable space without a full remodel
✅ Enjoyment of the garden all year round
✅ A real investment in long-term property value

Then absolutely, yes — you should consider a conservatory.

As long as it’s expertly designed, uses quality materials, and fits your home and lifestyle, the value speaks for itself.

Ready to Explore Your Options? Let’s Talk.

At Number One Windows and Doors, we bring over 40 years of combined experience to every project. We’ll guide you all the way — from pricing, to design, to what’s actually possible on your property.

No pressure. Just real talk about conservatories and what works best for you.

We specialise in custom-designed and custom-built aluminium conservatories throughout Christchurch and Canterbury. We never compromise on comfort, quality, or long-lasting results — from concept to completion.

Wondering how much does a conservatory increase house value in Christchurch?
Call us, email us, or pop into the showroom for a no-obligation chat. Let’s build something great — together.

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