Water tanks in Northern Territory
In the Northern Territory a water tank needs no planning approval, but it must not block or sit within firebreak areas. Source
Do I need approval?
Not required
Planning
Planning approval is not required for a water tank. The tank must not block or sit within firebreak areas. NT Government
Check
Building
Building permits are only required in the NT's building control areas. Check whether your land is in one, and ask a registered building certifier about a large tank. NT Government
Required
Health
Rules against mosquito breeding in rainwater tanks apply under the Public and Environmental Health Regulations 2014. NT Government
Bushfire water
We have not loaded a statewide static water table for Northern Territory. Fire water requirements come from your council, development conditions or fire service.
Work out your lotNew homes and renovations
Planning approval is not required for a water tank. NT Government Building permits are only required in building control areas. NT Government
What size works here
Darwin Airport averages 1,732 mm of rain a year. Bureau of Meteorology Bushman Tanks notes there is very little rain from May to September, so size storage to last the dry season. Bushman Tanks
1,000 L3,000 L5,000 L10,000 L22,500 L46,400 L
Size a tank for NTRebates
We found no open household program on 13 Nov 2026. Your council or water utility may still run one.
From council and water-utility pages, checked 13 Nov 2026. All rebates
Suppliers for NT
| Supplier | Materials | Delivery area, as the supplier states it |
|---|---|---|
| Kingspan Water Tanks | steel, poly | Australia-wide |
| Coerco | poly, steel | Queensland, Western Australia, South Australia, Northern Territory |
| Bunnings (special order) stockist | poly, steel | Stores Australia-wide; tanks are mostly special order |
Unclaimed listings from the suppliers' own pages, checked 13 Nov 2026. We have checked suppliers mainly for south east Queensland and northern NSW so far; more for NT follow. Supply NT? Claim or add a listing.
Questions
Does my tank need tying down?
Ask the supplier for hold-down details, and a registered building certifier if the tank is large or your land is in a building control area.
How do I stop mosquitoes?
Screen every inlet and overflow. Mosquito rules apply under the Public and Environmental Health Regulations 2014. NT Government