The Rising Demand for Water Tanks in NSW: What’s Trending for New Builds?

With growing concerns about water conservation, sustainability, and regulatory requirements, rainwater tanks have become an essential feature in new residential builds across New South Wales (NSW). Whether for reducing reliance on mains water, complying with regulations like BASIX, or preparing for dry seasons, installing the right water tank can make all the difference.

So, what types of water tanks are currently in demand, and which regions in NSW are leading the way in rainwater harvesting? Let’s dive in.

Why Water Tanks Are a Must for New Homes in NSW

The NSW government’s Building Sustainability Index (BASIX) mandates that all new homes meet specific water efficiency targets. This means that most new residential developments must incorporate water-saving features, such as rainwater tanks, to reduce mains water consumption.

Typically, BASIX-compliant water tanks are connected to toilets, laundry, and outdoor irrigation, helping homeowners save thousands of litres of water each year. Not only do these tanks support sustainable living, but they also help reduce water bills, making them an attractive option for new homebuyers and builders alike.

Top Water Tank Types for New Residential Builds

With increasing demand for space-efficient, durable, and high-capacity tanks, here are the most popular options for new homes in NSW:

1. Slimline Water Tanks: The Space-Saving Solution

Ideal for urban homes with limited space, slimline water tanks are designed to fit along fences, narrow side passages, or the side of a house. They offer a sleek and modern look while providing homeowners with an effective way to store rainwater without taking up too much space.

Best for: Small properties, townhouses, and homes in metro areas like Sydney, Parramatta, and Wollongong.

2. Round Water Tanks: High-Capacity Storage for Larger Homes

For homeowners who have more land available, round water tanks offer a greater storage capacity and are often the most affordable option per litre. These tanks are commonly used in suburban and regional areas where space is less of a concern.

Best for: Homes with larger backyards in areas like Penrith, Central Coast, and the Blue Mountains.

3. Underground Water Tanks: Hidden & Space-Saving

For those who want to maximise outdoor space without compromising on water storage, underground tanks are a fantastic choice. These tanks are buried beneath the ground, keeping them out of sight while still providing significant water storage.

Best for: Homeowners who prioritise landscaping and aesthetics, particularly in high-end areas like Mosman, Hunters Hill, and Byron Bay.

Where is Demand for Water Tanks Growing in NSW?

With population growth and climate variability affecting different parts of NSW, demand for rainwater tanks is particularly strong in:

Greater Sydney – Due to urban expansion and government sustainability policies, Sydney homeowners are embracing slimline tanks for BASIX compliance and water conservation.

Central Coast & Hunter Region – With recent population booms in Gosford, Newcastle, and the Lower Hunter, demand for round and slimline tanks is increasing as households look for sustainable water solutions.

Regional & Rural NSW – Areas such as Tamworth, Dubbo, and Wagga Wagga experience periodic droughts, making large-capacity round and underground tanks essential for securing reliable water supply.

South Coast & Northern NSW – Homeowners in coastal towns like Bega, Coffs Harbour, and Port Macquarie are installing rainwater tanks to reduce dependency on local water supplies and enhance sustainability.

Why Choose Poly Water Tanks for Your Home?

At Poly Water Tanks, we understand that every home has different water storage needs. Whether you need a space-saving slimline tank, a high-capacity round tank, or a discreet underground solution, we offer durable, Australian-made tanks designed to withstand the toughest conditions.