Trinity Gardens vs Firle

In both, most households own their home and most homes are detached houses. In Trinity Gardens, about half of households are couple families. Houses cost more in Trinity Gardens: a median of $1.76 million, against $1.29 million in Firle, and rent is higher there too. Trinity Gardens is closer to the city centre: 5.5 km, against 7 km. On these figures, Trinity Gardens tends to suit couples, while Firle suits buyers on a tighter budget.

Which one suits you?

There is no overall winner — the suburb that suits a family with school-age kids is routinely the wrong one for someone commuting into the city. So each of these answers its own question, against a checklist you can see, using the same figures in the tables below.

Families with school-age kids

Trinity Gardens

ahead on 3 of the 6 things we measure here

  • carries lower crime risk (71/100 vs 85/100)
  • has more separate houses rather than flats (77% vs 65%)
  • is already more of a family suburb (62% vs 53%)
  • But Firle has more parks and reserves (5 vs 1)

Weighs schools, house stock, crime, parks, childcare, and who already lives there.

First-home buyers

Firle

ahead on 2 of the 3 things we measure here

  • has cheaper houses ($1,295,000 vs $1,756,000)
  • has cheaper units ($618,500 vs $698,500)
  • But Trinity Gardens leaves households under less mortgage stress (25% vs 31%)

Weighs house prices, unit prices, and mortgage stress.

Renters

Firle

ahead on the one thing that separates them

  • has a bigger rental market to choose from (38% vs 27%)

Weighs rent, rental stress, and how much is for rent.

Commuting to the city

Firle

ahead on the one thing that separates them

  • is more walkable (88/100 vs 78/100)

Weighs distance, drive time, and walkability.

Downsizers and retirees

Firle

ahead on 2 of the 5 things we measure here

  • has more units and townhouses to downsize into (35% vs 23%)
  • is more walkable (88/100 vs 78/100)
  • But Trinity Gardens carries lower crime risk (71/100 vs 85/100)

Weighs smaller dwellings, who already lives there, GPs, walkability, and crime.

Investors

Too close to call

Nothing among the 1 things we measure here separates them by enough to be worth acting on.

Weighs population growth.

Where they sit

Trinity Gardens and Firle drawn to the same scale. Both outlines are shown together, so the map answers whether they share a border and how their areas compare.

Trinity Gardens Firle
Hides rows where both suburbs match

Bars start at zero. Scores, risks and rankings are drawn against their full 0–100 range; other rows are drawn in proportion to the larger of the two.

Side by side, out of 100

Risks are inverted — shown as safety and low exposure — so a longer bar always means better.

Trinity Gardens Firle
Walkability 78 / 88
Trinity Gardens — Walkability: 78/100 Firle — Walkability: 88/100
Safety 29 / 15
Trinity Gardens — Safety: 29/100 Firle — Safety: 15/100
Low fire risk 100 / 100
Trinity Gardens — Low fire risk: 100/100 Firle — Low fire risk: 100/100
Low flood risk 21 / 29
Trinity Gardens — Low flood risk: 21/100 Firle — Low flood risk: 29/100

Demographics

Trinity Gardens has higher household incomes ($104,312 vs $77,376).

Trinity Gardens Firle
Population 1,264 1,508
+19% vs other
Population trend (2016 → 2021) +2.4% +4.9%
Median age 40 39
Median household income $104,312/yr
+26% vs other
 $77,376/yr
Median weekly rent $375/wk
+7% vs other
 $350/wk

Age profile

Share of residents in each band, 2021 Census.

Trinity Gardens Firle
0-4 4.9% / 5.3%
Trinity Gardens — 0-4: 4.9% Firle — 0-4: 5.3%
5-14 12.6% / 10.9%
Trinity Gardens — 5-14: 12.6% Firle — 5-14: 10.9%
15-19 7.1% / 5.4%
Trinity Gardens — 15-19: 7.1% Firle — 15-19: 5.4%
20-24 7.0% / 6.8%
Trinity Gardens — 20-24: 7.0% Firle — 20-24: 6.8%
25-34 11.0% / 15.6%
Trinity Gardens — 25-34: 11.0% Firle — 25-34: 15.6%
35-44 13.3% / 15.0%
Trinity Gardens — 35-44: 13.3% Firle — 35-44: 15.0%
45-54 13.9% / 11.9%
Trinity Gardens — 45-54: 13.9% Firle — 45-54: 11.9%
55-64 13.8% / 10.2%
Trinity Gardens — 55-64: 13.8% Firle — 55-64: 10.2%
65-74 9.1% / 8.8%
Trinity Gardens — 65-74: 9.1% Firle — 65-74: 8.8%
75-84 5.8% / 6.4%
Trinity Gardens — 75-84: 5.8% Firle — 75-84: 6.4%
85+ 2.1% / 3.9%
Trinity Gardens — 85+: 2.1% Firle — 85+: 3.9%

Bars are drawn against the largest share shown (15.6%).

Who lives together

Household composition, 2021 Census.

Trinity Gardens 48.8% couple families
Trinity Gardens — Couple Families: 48.8% Trinity Gardens — Lone Person: 32.3% Trinity Gardens — One Parent Families: 13.7% Trinity Gardens — Group Household: 4.1% Trinity Gardens — Other Families: 1.1%
Firle 37.5% couple families
Firle — Couple Families: 37.5% Firle — Lone Person: 40.0% Firle — One Parent Families: 15.3% Firle — Group Household: 5.9% Firle — Other Families: 1.3%
Couple Families Lone Person One Parent Families Group Household Other Families

Who owns and who rents

Occupied private dwellings by tenure, 2021 Census.

Trinity Gardens 26.8% renting
Trinity Gardens — Owned Outright: 42.5% Trinity Gardens — Mortgage: 30.7% Trinity Gardens — Renting: 26.8%
Firle 37.9% renting
Firle — Owned Outright: 31.6% Firle — Mortgage: 30.5% Firle — Renting: 37.9%
Owned outright Mortgage Renting

Where residents were born

Largest overseas birthplaces, as a share of all residents, 2021 Census. A dash means that country is not among the suburb's own eight largest.

Trinity Gardens Firle
China 4.7% / 8.1%
Trinity Gardens — China: 4.7% Firle — China: 8.1%
Italy 5.3% / 6.4%
Trinity Gardens — Italy: 5.3% Firle — Italy: 6.4%
India 1.5% / 6.4%
Trinity Gardens — India: 1.5% Firle — India: 6.4%
England 3.8% / 2.6%
Trinity Gardens — England: 3.8% Firle — England: 2.6%
Malaysia 1.8% / 1.7%
Trinity Gardens — Malaysia: 1.8% Firle — Malaysia: 1.7%

Bars are drawn against the largest share shown (8.1%).

Qualifications

Highest non-school qualification, residents 15+, 2021 Census.

Trinity Gardens Firle
Bachelor Degree 22.5% / 19.8%
Trinity Gardens — Bachelor Degree: 22.5% Firle — Bachelor Degree: 19.8%
Certificate III & IV 9.4% / 10.0%
Trinity Gardens — Certificate III & IV: 9.4% Firle — Certificate III & IV: 10.0%
Postgraduate Degree 7.2% / 9.7%
Trinity Gardens — Postgraduate Degree: 7.2% Firle — Postgraduate Degree: 9.7%
Advanced Diploma / Diploma 7.5% / 7.6%
Trinity Gardens — Advanced Diploma / Diploma: 7.5% Firle — Advanced Diploma / Diploma: 7.6%
Graduate Diploma / Certificate 3.3% / 2.5%
Trinity Gardens — Graduate Diploma / Certificate: 3.3% Firle — Graduate Diploma / Certificate: 2.5%

Bars are drawn against the largest share shown (22.5%).

What people live in

Occupied private dwellings by structure, 2021 Census.

Trinity Gardens 77.4% houses
Trinity Gardens — Houses: 77.4% Trinity Gardens — Townhouses: 12.9% Trinity Gardens — Flats / Apartments: 9.8%
Firle 65.3% houses
Firle — Houses: 65.3% Firle — Townhouses: 34.8% Firle — Flats / Apartments: 0.0%
Houses Townhouses Flats / Apartments

Property market

Trinity Gardens Firle
Median house price $1,756,000 $1,295,000
Median unit price $698,500 $618,500
Median land price —
same for both
Typical days to sell (houses) 16 days
from 6 sales
 22 days
from 16 sales

Zoning mix

Trinity Gardens Firle
Residential 78% 87%
Commercial 7% 13%
Infrastructure and transport 9% 0%
Industrial 6% 0%
Zoning sets what may be built, not what is there today. A single address can sit in a different zone to the suburb around it. Zones as at 2026-09.

Development activity

Trinity Gardens Firle
New dwellings approved 227
across Norwood Payneham and St Peters
same for both
Approvals change year on year +141%
same for both

Ranking within SA

Trinity Gardens Firle
House price Higher than 81% of SA Higher than 83% of SA
Income Higher than 83% of SA Higher than 52% of SA
Schools —
same for both
Walkability Higher than 91% of SA Higher than 97% of SA
Affordability Higher than 32% of SA Higher than 10% of SA
EV adoption Higher than 93% of SA Higher than 86% of SA
NBN connectivity Higher than 85% of SA Higher than 87% of SA

Liveability

Firle is more walkable (88 vs 78); Trinity Gardens scores higher overall (65 vs 58).

Trinity Gardens Firle
Grade B
same for both
Score 65/100 58/100
Socio-economic band very advantaged area
decile 9/10
 advantaged area
decile 7/10

Risk profile

Firle carries more crime risk (85 vs 71).

Trinity Gardens Firle
Bushfire None
0/100
same for both
Crime High
71/100
 High
85/100
Flood High
79/100
 High
71/100
Coastal erosion None
0/100
same for both
Aircraft noise None
0/100
same for both
Industrial facilities nearby 4
within 5 km
same for both

Schools

Trinity Gardens Firle
Inside the suburb 1 0
Rated above peers 0
same for both
Rated at peers 1 0
Rated below peers 0
same for both
Universities within 10 km 3
Adelaide University, Magill Campus, 2.8 km
 3
Adelaide University, Magill Campus, 2.1 km
Full-time students aged 15–24 4.3% 3.9%

Schools in Trinity Gardens

  • Trinity Gardens School Government · Primary at peers

Schools in Firle

No schools recorded inside this suburb's boundary. Children here will be zoned to schools nearby.

Amenities in the suburb

Trinity Gardens Firle
Supermarkets 0 4
Cafes & restaurants 1 10
Parks & reserves 1 5
Childcare 2 0
GPs 1
same for both
Pharmacies 1 2
Police stations 0 1
Banks & Bank@Post 0 1
Fuel stations 1 0
Waterways 0 8

Mobility

Trinity Gardens Firle
Walkability score 78/100 88/100
Distance to Adelaide 5.5 km 7 km
+27% vs other
Drive time (normal traffic) 12 min 15 min
Public transport score 79/100
Bus
same for both
Peak arrivals per hour 35.8
7-9am + 5-7pm
 45.2
7-9am + 5-7pm
Median peak wait 1 min
scheduled, not actual
same for both
Electric vehicle share 1.9%
postcode 5068
 1.4%
postcode 5070
Rooftop solar per 100 dwellings 45
postcode 5068
 47
postcode 5070

How people get to work

Method of travel on census day 2021 — which fell during COVID restrictions, so working from home is inflated and every travel mode understated.

Trinity Gardens Firle
Car (driver) 68.8% / 69.9%
Trinity Gardens — Car (driver): 68.8% Firle — Car (driver): 69.9%
Worked from Home 12.6% / 12.3%
Trinity Gardens — Worked from Home: 12.6% Firle — Worked from Home: 12.3%
Bus 6.0% / 8.9%
Trinity Gardens — Bus: 6.0% Firle — Bus: 8.9%
Car (passenger) 5.8% / 5.4%
Trinity Gardens — Car (passenger): 5.8% Firle — Car (passenger): 5.4%
Walked Only 3.3% / 2.0%
Trinity Gardens — Walked Only: 3.3% Firle — Walked Only: 2.0%
Bicycle 3.5% / 1.5%
Trinity Gardens — Bicycle: 3.5% Firle — Bicycle: 1.5%

Bars are drawn against the largest share shown (69.9%).

Setting

Trinity Gardens Firle
Elevation 66 m
above sea level, at the suburb centre
 77 m
above sea level, at the suburb centre
Distance to the ocean 13.6 km 14.4 km

NBN connectivity

Trinity Gardens Firle
Connectivity score 75/100
same for both
Most common technology Hybrid fibre-coaxial
same for both
Full-fibre (FTTP) share 1%
582 premises
 1%
804 premises

Climate

Trinity Gardens Firle
Annual rainfall 457 mm
same for both
Summer max (Jan) 29.1°C
same for both
Winter min (Jul) 8.5°C
same for both

Air quality (annual mean)

Trinity Gardens Firle
PM2.5 6.0 µg/m³
same for both
PM10 17.8 µg/m³
same for both
NO₂ 1.12 pphm
same for both

Council rates

Trinity Gardens Firle
Average residential rate $1,995/yr
same for both
Council Norwood Payneham and St Peters
same for both

Federal electorate

Trinity Gardens Firle
Division Sturt
same for both
Member Claire Clutterham
same for both
Party Australian Labor Party
same for both

First Home Owner Grant

Trinity Gardens Firle
Grant amount $15,000
same for both
Property price cap —
same for both
Eligibility New
same for both

Tags

Trinity Gardens

Inner Parks Premium Professionals

Firle

Inner Multicultural Parks River Townhouses

More comparisons

Other comparisons with Trinity Gardens

Trinity Gardens vs Norwood Trinity Gardens vs Kensington Park Trinity Gardens vs Payneham South Trinity Gardens vs Beulah Park Trinity Gardens vs St Morris Trinity Gardens vs Maylands

Other comparisons with Firle

Firle vs Tranmere Firle vs Payneham Firle vs Glynde Firle vs Payneham South Firle vs St Morris
Full data on Trinity Gardens Full data on Firle
Unlock full address-level data — $29/month

Information shown is provided as-is from Australian government and commercial data sources.
Always verify with the relevant authority before making property decisions.
See Data Sources and How We Calculate for details.

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