# S-P09-H-03: Our house has some unusual features. Should we look for specialist house insurance?

Collected 11 October 2026

[Home and contents insurance study](https://nzbrands.ai/research/insurance/home-contents-insurance)

## ChatGPT

Answer ID: 3e3e9a26-6284-400e-92dd-2ac7827b5e41

Yes — if your house has unusual features, it’s worth investigating specialist home insurance in New Zealand, or at least finding an insurer that can assess non-standard properties individually.

You may not need a specialist policy. Some standard home insurance policies cover unusual homes, but the important question is whether the insurer can adequately cover the cost of repairing or rebuilding your particular house.

## Which features might warrant specialist insurance?

- Unusual construction: earth walls, rammed earth, straw bale, cob, adobe, or non-standard building materials.
- Heritage features: a character or historic home with original timberwork, ornate plaster, stained glass, or other features that are expensive to reproduce.
- Unusual design: a geodesic dome, earth-sheltered house, converted barn, architect-designed home, or a property with unconventional structural elements.
- Non-standard materials or workmanship: imported materials, custom fittings, specialist roofing, or construction methods that require particular tradespeople.
- Remote or difficult-to-access properties: homes where rebuilding would be complicated by access, transport, or limited availability of contractors.
- High rebuild costs: homes with bespoke finishes, unusual layouts, or materials that are difficult to source.

A house does not necessarily need to be old or particularly valuable to need specialist consideration.

## What I’d recommend in New Zealand

1. Start with a specialist insurance broker. Explain what makes your house unusual and ask them to compare standard policies with options for non-standard homes.
2. Get a realistic rebuild-cost assessment. A standard online calculator may not account for bespoke design, specialist materials, or the tradespeople needed to recreate them. The Insurance Council of New Zealand recommends a professional valuation for more complex properties. [House & Contents Insurance: Sum Insured Explained](https://www.icnz.org.nz/individuals/house-contents/)[Home Sum Insured](https://www.nzi.co.nz/personal-cover/home-insurance/home-sum-insured)
3. Ask exactly what happens after a major loss. Would the insurer rebuild the house to an equivalent specification, or might it pay only up to a capped sum? Check whether heritage details, custom materials, professional fees, demolition and consent costs are covered.
4. Disclose unusual features in writing. Ask the insurer to confirm how it has assessed those features and whether any exclusions, limits or special conditions apply. Incomplete disclosure can affect a future claim. [Duty of Disclosure: What to Tell Your Insurer](https://www.icnz.org.nz/individuals/consumer-guides/things-you-need-to-tell-your-insurer/)[ICNZ Consumer Guide 2025](https://www.icnz.org.nz/wp-content/uploads/2025/07/ICNZ-Consumer-Guide-2025-%E2%80%93-Consumer-guide-to-purchasing-home-insurance.pdf)

You can start with the [Insurance Council of New Zealand's home insurance guidance](https://www.icnz.org.nz/individuals/consumer-guides/) or investigate specialist high-value cover such as [NZI Distinction](https://www.nzi.co.nz/personal-cover/distinction/home-insurance). The latter is an option to investigate, not a guarantee that your particular property will qualify.

## Can you tell me what’s unusual about your house?

This is the key detail that will help determine whether you need specialist cover or simply a policy tailored to your home.

For example, is it unusual because of its construction materials, age or heritage status, architectural design, custom features, or something else entirely?

Tell me a little about the house, and I can help you narrow down the type of insurance to look for in New Zealand.

## Gemini

Answer ID: 029dc01f-8437-45a3-a9a9-0734d17a6e7d

Yes, depending on the nature of the features, looking into specialized or tailored house insurance—or at least carefully amending a standard policy—is strongly recommended in New Zealand. 

Standard off-the-shelf house insurance policies sold by most providers are designed for typical residential properties (e.g., standard timber-framed or brick-and-tile homes on urban sections). They often exclude or severely limit cover for non-standard, bespoke, or high-value elements.

### Why Unusual Features Need Special Attention

1. **Automatic Exclusions or Limits:** 
   Standard policies frequently exclude or place tight caps on structures outside the main dwelling footprint or unique fixtures. Examples include retaining walls, large or specialized outbuildings, separate workshops, long bridges, culverts, cable cars, jetties, or off-grid private utility plants (such as windmills, solar farms, or independent diesel generators).
2. **Rebuild Costs vs. Sum Insured:** 
   If your house has architectural quirks, heritage details, bespoke imported materials, or specialized building methods (such as earth building, timber framing of a certain era, or complex off-grid configurations), a standard square-metre calculator will drastically under-estimate the true cost to rebuild. Under-insuring can leave you facing a massive shortfall if disaster strikes.
3. **The Natural Hazards Commission (NHC Toka Tū Ake) Gap:** 
   While the government’s public natural disaster scheme provides baseline building cover up to $300,000 plus GST, it has strict limits regarding land, infrastructure, and outbuildings, and **completely excludes items like fences, retaining walls (beyond strict criteria), and certain specialist structures**. Your private insurance must pick up the slack.

### What You Should Do

* **Disclose Everything Upfront:** When getting or reviewing a quote, explicitly list your home's unique features to your insurer or broker. Failing to disclose non-standard elements can lead to denied claims or avoided policies down the track.
* **Consider High-Net-Worth or Specialist Policies:** Major New Zealand insurers offer tiered or specialist suites (such as high-end/heritage or lifestyle block policies) designed specifically for properties that "go beyond the limits" of standard domestic guidelines. These often include features like:
  * Complimentary professional rebuild valuations (by a registered quantity surveyor) to get your sum insured right.
  * Higher limits for temporary accommodation.
  * "Matching materials" clauses, which cover the extra cost of replacing undamaged components so that bespoke or custom interiors remain cohesive.
* **Use an Insurance Broker:** Because unusual features sit outside standard risk algorithms, working with an independent insurance broker can be immensely helpful. Brokers understand which underwriters cater to niche properties and can negotiate tailored policy wordings to ensure you aren't left exposed.

## AI Overviews

Answer ID: 85eb8f8e-ae23-4b5a-aac1-8617826a9167

**Yes, if your house has highly unusual features, you should look into specialist or non-standard house insurance** , as mainstream New Zealand insurers often reject or severely underinsure homes that fall outside "standard construction" guidelines.

Standard Kiwi insurance policies are built for traditional timber or brick homes with GIB walls and iron or tile roofs. If your home features unconventional design elements, you run a high risk of being **underinsured** or having a claim declined if those specific features are not explicitly detailed in your policy.

* * *

🔍 What Counts as an "Unusual Feature" in NZ?

In mainstream insurance terms, features that require specialist cover generally fall into three categories:

Feature Category| Examples in New Zealand| Why Standard Insurers Hesitate
---|---|---
**Non-Standard Materials**| Earthship, straw bale, monolithic cladding (leaky home era), mudbrick, container homes, unreinforced masonry.| Lack of standard rebuilding cost data and specialized trade skills required to fix them.
**Architectural & Historical**| Off-grid setups, heritage-listed buildings, extensive custom stained glass, imported high-end materials.| High replacement costs that easily blow past a standard "sum insured" calculator.
**Structural / Site Risks**| Extreme stilt housing on steep cliffs, extensive retaining walls (beyond standard limits), or eco-roofs.| Higher vulnerability to natural hazards like landslips and earthquakes.

* * *

⚠️ The Risk of Stick-with-the-Standard Calculators

Most mainstream NZ insurers rely on online **Sum Insured calculators** (like Cordell) to estimate what it would cost to rebuild your home.

 * These calculators frequently default to standard materials and building codes.

 * If your house burns down, a standard policy will only pay up to the fixed **Sum Insured** cap. If rebuilding your specialized home requires importing custom materials or hiring niche artisans, you will be left paying tens of thousands out of pocket.

* * *

🛠️ How to Proceed

 1. **Get a Professional Quantity Surveyor (QS) Report:** Do not guess your rebuild value. Hire a professional QS to evaluate your unique features and give you a true, accurate cost of replication.

 2. **Consult an Insurance Broker:** Instead of trying to use automated online quote tools, speak to an insurance broker (such as those registered with Financial Advice New Zealand). Brokers have direct lines to specialist underwriters (like Lloyd's syndicates or niche domestic providers) who write custom policies for non-standard risks.

 3. **Disclose Everything:** Under NZ law, you have a duty to disclose material facts. Failing to mention a highly unusual architectural feature can void your entire policy when you go to make a claim.

* * *

To help me give you more specific advice on where to look, could you share a bit more about what makes the home unique? For instance:

 * What **unusual materials** or **architectural styles** does the house use?

 * Is the home **off-grid** or located on an **extreme terrain/coastal slope**?

 * Is it a **heritage-listed** property?

## Google AI Mode

Answer ID: a1eb0c1d-a694-4368-b6a7-7e2e6e25078a

Yes, if your house has unusual or non-standard features, it is definitely worth looking closely at your policy or considering a tailored/specialist approach to your house insurance. Standard online calculators and off-the-rack policies are usually built for standard, cookie-cutter residential homes and can leave you significantly underinsured or unprotected.

Why Unusual Features Change the Equation

 * * **Underinsurance Risk:** Standard sum-insured calculators use average building costs. If your home has bespoke joinery, high-end architectural details, vaulted ceilings, or imported materials, standard formulas will drastically underestimate what it actually costs to rebuild.

 * **Specialist Trades and Materials:** Non-standard construction (like heritage features, specific stone masonry, non-standard cladding systems, or rare timber) requires specialist labour and hard-to-source materials, driving up repair and rebuild timelines and costs. [Initio Insurance NZ]

 * **Complex Sites or Outbuildings:** Features like difficult site access, extensive retaining walls, detached studios, or lifestyle block outbuildings often fall outside the scope or limits of a basic consumer policy.

 *

Options to Consider

 * * **Custom/Bespoke Policies:** Some insurers and brokers specialise in high-value, heritage, architecturally designed, or non-standard properties, offering features like full replacement guarantees rather than a fixed sum insured.

 * **Professional Valuation:** Instead of relying on a standard online calculator, getting a professional valuation from a registered quantity surveyor or specialist property valuer ensures your sum insured actually matches the real-world replacement cost of your specific features.

 *

To help figure out the best approach, what **specific unusual features** does your house have (e.g., heritage status, non-standard building materials, architectural design, or a unique location/lifestyle property)?