Do You Need Building Consent for a Bathroom Renovation in Hawke’s Bay?
It’s one of the first questions we get when someone starts planning a new bathroom. The short answer is that some bathroom renovations need building consent and some don’t. It comes down to what you’re changing, not how much you’re spending.
Here’s a practical guide to building consent for a bathroom renovation in Hawke’s Bay. It’s based on national guidance and what councils say about common bathroom work. Every house is different, so treat this as a starting point. Before you lock in a plan, check with Napier City Council or Hastings District Council, or have a chat with us.
Bathroom work that usually doesn’t need consent
Schedule 1 of the Building Act 2004 lists building work that’s exempt from consent. Council guidance generally treats these bathroom jobs as exempt:
- Replacing or moving fixtures like the bath, basin, shower or toilet pan within an existing bathroom
- Swapping an old shower for a ready-made or stand-alone shower unit
- Taking out a bath with a shower over it and putting in a new shower enclosure and bath in the same space
- Moving a toilet from a separate toilet room into an existing bathroom next door
Exempt doesn’t mean anything goes. The work still has to meet the Building Code. Plumbing has to be done or supervised by a registered plumber, and electrical work needs a registered electrician.
When you need building consent for a bathroom renovation
The big one is a tiled, level-entry shower. These are often called wet area showers, where the shower floor carries on from the bathroom floor with no tray or step. The government’s building website is clear on this one: “Installing ‘wet area’ showers is work that requires a building consent.”
The reason is waterproofing. A wet area shower needs the floor, walls and substrate set up to handle water, a waterproof membrane, and the right fall to the waste. If any of that is wrong, water gets into the framing. You might not see the damage for years, and by then it’s a much bigger job.
Other bathroom work that usually needs consent:
- Adding a shower, toilet or basin where there wasn’t one before, such as turning a spare room into an ensuite
- Plumbing work that could affect structure, like cutting into floor joists or wall framing
- Digging new drains
What about moving walls?
A lot of bathroom renovations in older Hawke’s Bay homes involve changing the layout. Think of a villa or bungalow in Hastings or Napier South with a separate toilet, a small bathroom and a hallway that could give up a bit of space. Opening that up can be a great result, but changing walls can bring consent into play. That’s especially true if a wall is carrying load. It’s one of the first things we look at on site, so there are no surprises later.
New lead-free rules for taps and fittings
This one’s newer. From 2 May 2026, lead-free requirements apply to plumbing products used in drinking water systems for all new building work. Hastings District Council’s June 2026 building bulletin says copper alloy products in contact with drinking water must contain no more than 0.25% lead. That covers fittings, valves, taps, mixers and water heaters. The council checks this during consenting and at inspection.
In practice, that means checking your tapware is compliant before you buy it. Your plumber can help with this, and it’s worth doing before you fall in love with a particular mixer.
Why consent can work in your favour
Consent can feel like extra hassle, but it has upsides. Inspections happen at key stages, so someone independent checks things like waterproofing before it’s covered up. The finished work goes on your property file too. That record helps when you come to sell, because buyers and their lawyers often look at what’s been consented.
If you’re not sure about your project, it’s much easier to sort out consent at the start than to deal with unconsented work later.
Who does what on a bathroom renovation
A bathroom is a small room with a lot of trades in it. On a typical job we handle the building side and keep the project moving. A registered plumber, an electrician and often a tiler or waterproofing specialist all do their part. Getting the order right matters, because each step relies on the one before it.
Thinking about a bathroom renovation?
If you’re planning a new bathroom in Napier, Hastings, Havelock North, Taradale or anywhere around Hawke’s Bay, we’re happy to take a look. Send us your address or suburb, a few photos of the current bathroom and a rough idea of what you’d like to change. The photos help us understand the space before we talk about next steps.