Learn · Suburb fundamentals
How to research a suburb before buying
A dated workflow: Census versus ERP, then Districts medians, rents, pipeline and the lot. Do not mix periods on one line.
Districts Research · ·

Suburb, then lot
Suburb figures narrow where to look. They never exempt the ten checks on the property.
- AreaMedians, households, stock
- LotOverlays and this parcel
Swipe the panels.
The order of tests
How do I research a suburb properly before buying in it?
A suburb file is a stack of dated objects: who lived there on Census night, how many usual residents the latest ERP estimates, what sold and let in a stated window, what the planning system intends, and what hazards the land carries. Mixing those dates on one line is how a 2021 renter share becomes this year’s “demand”.
Then open a lot. Suburb research sets the range of conditions. It does not clear a flood overlay or an asking price. Districts suburb profiles carry some of the market lines. Census tables carry tenure, households and industry. ERP is people, not dwellings.
The sequence, with the date written first
Copy the geography code as well as the name. Brunswick (Vic.) SAL20361 is not the Brunswick-Coburg SA2 and not a postcode.
- People. Latest ERP for usual residents if you need a current population. Census usual-residence count for the last Census night. They are different methods. See population and households.
- Households and dwellings. Occupied private dwellings, unoccupied dwellings, tenure and structure from Census. There is no official annual household series between Censuses.
- Market tape. Median sale by type, sales count, period and source. See why medians mislead.
- Rent tape. Advertised median and a class listing count, each with a window. See rental demand.
- Jobs. Residents’ industry (INDP by usual residence) versus jobs located in the area (place of work). See employment concentration.
- Stock and pipeline. What the dwellings are, and what has planning or building status nearby. See stock composition.
- Planning direction and hazards. Scheme and overlay names differ by state and territory. Then announced versus funded infrastructure.
- The lot. Research the property.
Census night is not the official population estimate
The Australian Bureau of Statistics says Estimated Resident Population is the official measure of usual residents. It starts from Census usual-residence counts, then adjusts for net undercount and residents temporarily overseas, and updates with births, deaths and migration. The Census also counts everyone in Australia on Census night, including visitors.
On a Districts suburb profile the population field is a Census figure with its observation date, when loaded. Do not treat it as this quarter’s ERP. Do not treat ERP as a household count.
Worked stack: Brunswick (Vic.) SAL20361
Census night 2021, QuickStats: 24,896 people; 13,043 private dwellings; 11,040 occupied (87.4 per cent); 1,594 unoccupied; rented 48.1 per cent of occupied dwellings; apartments 34.1 per cent. Those rows are official and five years old on this page’s check date.
A Districts Brunswick profile, if loaded, will show a later median sale, a sales count, an advertised median rent and a gross yield, each with its own window. Write them on a second block. If a field is not loaded, leave it unknown. Do not average the 2021 Census median rent ($441) with this year’s advertised median.
Traps that collapse the stack
- Reading a rising median as every property rising.
- Using population growth as dwelling demand without households and supply.
- Comparing two suburbs on different boundaries or periods. See comparing suburbs.
- Trusting a hotspot list.
- Stopping at the suburb and skipping the lot.
What a suburb profile does not establish
It does not establish why households moved, what an employer will do, or whether a planning direction will be carried through. Districts does not hold industry mix or tenure on every profile. Where the Census geography and the listing suburb differ, the figure belongs to the geography it was counted on.
How Districts shows a suburb
Profiles show median sale, one-year change, median rent, gross yield, properties sold, Census population and, where a state publishes them, rental statistics. Each line has source, period and date. Missing lines stay unavailable. Profiles link to property pages. See suburb profiles.
How to confirm you have the same place
Match the SAL or SA2 code on the ABS table to the boundary the sales source used. Open the current ERP release for usual residents. Open the council scheme for planning. Then run the lot checks.
How Districts derives it
Explore using Districts
Sources
Official material this page used. Dates are when Districts checked the page, not the life of the instrument.
Australian Bureau of Statistics
2021 Census All persons QuickStats, Brunswick (Vic.) SAL20361
Worked Census stack for one real suburb.
Checked
Australian Bureau of Statistics
Aussies count: working out the official population figures
ERP is the official usual-resident measure. Census is a night count plus characteristics.
Checked
Related guides
Suburb fundamentals
How to compare Australian suburbs fairly
Match geography, dwelling class, period, source and definition. Houses versus all dwellings, or Census versus ERP, invalidates the row.
Suburb fundamentals
Population and household growth and property markets
Census people, ERP, households and occupied dwellings are different objects. There is no official annual household series.
Suburb fundamentals
How to test claims that a suburb is resilient
Treat resilience as a claim. Test employment, infrastructure, households, supply, liquidity and hazards. No Districts index.
Using Districts
How to use Districts suburb profiles
Each profile field has a source and period. Do not mix ERP, Census, sale median, rent and pipeline on one line.
Property due diligence
How to research a property before buying in Australia
A dated research file: listing, parcel, sales, planning, hazards, nearby, building, title, rent, suburb, then unresolved gaps.
Research purposes only. Not personal financial advice, a valuation, or a planning certificate. Always speak to a licensed financial adviser before you act.