Do You Need an Overflow on Your Bathtub? A Guide for New Builds & Renovations

When designing a bathroom for a new build or renovation, every detail matters, including whether or not your bathtub needs an overflow. It's a common question, and the answer isn't always straightforward. Australian building regulations play a key role in determining whether an overflow is necessary but so do design preferences and practical considerations. Let's break it down.  

Understanding Australian Building Standards ​

When an Overflow May Be Beneficial ​

Even if it's not legally mandated, having an overflow on your bathtub can be a smart choice in certain scenarios:

• New Builds: If you're designing a home from scratch, incorporating an overflow provides peace of mind, preventing accidental spills and water damage.

• Renovations: If your existing plumbing allows for an overflow, installing one can add an extra layer of protection, especially in high-use family bathrooms.

• Luxury Baths: Freestanding or inset baths in premium finishes may benefit from an overflow to maintain longevity and protect surrounding surfaces.

• Integrated Overflow: At Turner Hastings we offer a range of baths in our TitanCast collection that feature an integrated overflow, creating a seamless neat look while still having the overflow benefit.

When You Might Skip the Overflow ​

In some cases, opting out of an overflow may be preferable:

• Minimalist Aesthetics: If you prefer a seamless, clean-lined bath design, avoiding an external overflow can contribute to a sleek, uninterrupted look.

• Alternative Drainage Solutions: If your bathroom includes a floor waste gully (FWG), this may sufficiently handle any excess water without the need for an overflow.

• Custom Bathing Experience: Some high-end freestanding baths do not come with an overflow option, offering a deeper and more immersive soak.

The Final Verdict

While a bathtub overflow isn't always required by Australian regulations, it can be a worthwhile addition for added protection and convenience. If your bath doesn't include one, ensuring proper drainage through a floor waste is crucial. Whether you're selecting a bath for a new build or renovation, Turner Hastings offers a curated collection of premium bathtubs, both with and without overflows, to suit any bathroom aesthetic.

Explore our range today and create a bathing experience that's both luxurious and compliant with Australian standards.