For a home in Brighton, Southern Water is the main regional benchmark. Its forecast 2026/27 household average is £759 a year.
Southern Water provides wastewater; local water supply can vary by address. Water-company boundaries can cross postcode areas and clean water may come from a different company than wastewater.
Monthly and weekly equivalent
The annual company average works out to £63.25 a month or £14.60 a week. Your payment plan may collect over ten rather than twelve months, so instalments can differ.
Household-size examples
These planning estimates adjust the Southern Water company benchmark for typical occupancy. They are not tariff quotes.
| Household | Annual estimate | Monthly |
|---|---|---|
| 1 person | £475 | £39.58 |
| 2 people | £684 | £57.00 |
| 4 people | £1,029 | £85.75 |
Coverage around Brighton
Southern Water is associated with postcode areas including BN, CT, GU, ME, PO, RH, SO, TN. This is only a regional guide: postcode areas can contain more than one appointed company, and wastewater may be billed separately.
What changes a Brighton bill?
- A metered home pays for measured use plus fixed charges.
- An unmetered home normally pays according to historic rateable value.
- Occupancy and habits strongly affect metered consumption.
- Support tariffs and WaterSure can reduce eligible bills.
Use a localised estimate
Select Southern Water in the calculator, add your household size and choose a realistic usage level. Treat the output as a planning range, then compare it with the tariff details on your bill.