Do I need a building consent?

Tiling in Bathrooms: Do You Need Building Consent on the Kapiti Coast?

When renovating a bathroom, it’s easy to focus on tile choices and design—but one of the most important considerations is whether your project requires building consent.

At Tile Kapiti, we often get asked where the line is between simple tiling work and consent-required work. The key difference usually comes down to waterproofing—and understanding this can save you serious time, money, and headaches.

What Is Building Consent?

A building consent is official approval from your local council confirming that your project meets the New Zealand Building Code. Work generally cannot begin until consent is granted, and inspections are required during the process.

On the Kapiti Coast, this is managed by the Kāpiti Coast District Council, who oversee approvals, inspections, and final sign-off.

When Tiling DOES Require Consent

Tiled Showers with Waterproof Membranes

If you are installing a tiled shower system that includes a waterproof membrane, this is where consent is typically required.

Why?

• Waterproof membranes are considered critical building work

• They protect the structure from water damage

• They must be installed to strict manufacturer and building code standards

• They often require inspection before tiles are installed

Council inspections commonly include waterproofing stages to ensure compliance before the job is completed.

👉 In simple terms:
If you are creating a “wet area shower” (fully tiled and tanked), you will usually need consent.

When Tiling Does NOT Require Consent

Acrylic or Prefabricated Shower Units

If your bathroom includes an acrylic enclosed shower, things are much simpler:

• The unit itself is already waterproof

• No membrane system is being installed

• Surrounding tiling is considered decorative

👉 This means:
You can tile the rest of the bathroom (floor and walls) without needing building consent.

This is one of the most common setups across Kapiti homes and is generally straightforward from a compliance perspective.

General Bathroom Tiling

You typically don’t need consent for:

• Floor tiling outside the shower

• Wall tiling and splashbacks

• Like-for-like renovations (without structural or plumbing changes)

However, even if consent isn’t required, all work must still meet the Building Code.

Bath Splashbacks: Not Required, But Smart

A bath splashback is another area that causes confusion.

• Consent is not required

• A membrane is not legally required in most cases

But here’s the professional reality:

Tiles and grout are not waterproof—they are water-resistant at best.

At Tile Kapiti, we strongly recommend waterproofing behind bath splashbacks because:

• Water regularly splashes and sits around bath edges

• Moisture can slowly penetrate walls

• Repairs later can be costly

👉 So while it’s not mandatory, it’s absolutely best practice.

Why Professional Waterproofing Matters

Waterproofing is one of the most critical steps in any bathroom tiling project. If it fails, the damage is often hidden—and expensive.

That’s why working with a certified installer matters.

At Tile Kapiti:

• We are Ardex-certified waterproofing applicators

• We install membranes to manufacturer specifications

• We can provide documentation (such as producer statements if required)

• We understand council inspection requirements

A properly installed membrane ensures your bathroom is:

• Watertight

• Code-compliant

• Built to last

Always Check Before You Start

Every project is slightly different, and council interpretations can vary depending on the scope of work.

The Kāpiti Coast District Council recommends contacting them early in your planning stage to confirm whether consent is required for your specific project.

This is especially important if you are:

• Changing a shower type

• Adding new plumbing fixtures

• Altering structural elements

Final Thoughts

Understanding when building consent is required comes down to one key factor: waterproofing systems.

• Tiled showers with membranes → Consent required

• Acrylic shower units → No consent required for surrounding tiles

• Bath splashbacks → No consent required, but waterproofing is best practice

At Tile Kapiti, we don’t just install tiles—we help ensure your bathroom is done properly, safely, and to code.

Planning a bathroom renovation on the Kapiti Coast?
Get in touch with Tile Kapiti for expert advice, certified waterproofing, and a job done right the first time.