Northside in figures
The closest official area
The ABS's Brisbane - North region counted 224,598 people at the 2021 Census, across four areas: Bald Hills - Everton Park, Chermside, Nundah and Sandgate.
Mostly houses
69.2% of occupied homes in the region were separate houses, 13.7% townhouses or semis and 16.6% flats. A third (33.9%) had four or more bedrooms, and 34.8% were rented.
A mix that changes by area
Bald Hills - Everton Park was 77.8% separate houses, while the Nundah area had 30.9% flats or apartments. Rented shares ran from 27.3% to 41.0%.
One water company across the north
Wherever you are on the northside, the water and sewer rules are Urban Utilities'. It owns the meter and the pipes back to its main; from the meter to the house is yours. For sewage, ownership changes at the sewer connection point, which may sit past your fence in the footpath or on common property.
A blockage on your side is your bill. If the plumber finds it in Urban Utilities' pipe, you pay the invoice, then lodge your own claim for consideration; the plumber can't lodge it for you, and digging done without Urban Utilities' approval isn't covered.
Houses and units need different first steps
In a house, the overflow relief gully near the laundry is the first thing to check when drains back up, and homes built before 1976 may not have one. Urban Utilities also says tree roots are the number one cause of sewer blockages, and suggests keeping figs, bottlebrushes and paperbarks away from pipes.
In a unit, the meter may sit beside your door or in a central cabinet, and its isolation valve needs only a quarter turn. The body corporate is the first call for shared pipes.
Flooding: check the map, not the suburb name
Don't judge flood risk by a suburb's name. Brisbane City Council's Flood Awareness Map rates river, creek and storm tide flooding by yearly likelihood, from high (5%) to very low (0.05%), and overland flow by impact. It doesn't show how deep or fast the water runs.
For suburb detail, see Nundah, Sandgate, Chermside and Everton Park, or the Brisbane page. For the job, go to blocked drains, hot water, leak detection or backflow testing.
What we would do
Search your address on the Flood Awareness Map once, so you know what you're dealing with. Then find two things at home: the water meter with its quarter-turn valve, and the overflow relief gully. Knowing both saves time in a burst or a backed-up sewer. After that, choose a plumber who works north of the river regularly and knows Urban Utilities' claim process.