SA · Grant Council

Ob Flat, SA, 5291

Current weather

12.3°CThunderstorm

92% humidity · 24.8 km/h wind · 15.6° / 10.1° today · 11.5 mm rain

Desirability index

88.1/100

#20 among Coastal & beach suburbs

How this score is calculated

Last updated 1 July 2026 at 4:22 pm ACST

Suburb snapshot

Ob Flat is a small locality in the Grant area, home to around 470 residents (2021 Census). Recent indicators show reported crime totals of around 7 offences in 2024–25 (Jul–Jun), roughly 14.9 offences per 1,000 residents, and notable planning and development activity on record. Use the sections below for detailed population, safety, schools, and local activity data.

Population

Population: 470
Median age: 48
Median household income / week: $2,104
Dwelling vacancy: 7.5%
Unoccupied private dwellings: 12 of 160
Median monthly mortgage: $1,625
Employment rate: 65.2%
Dwelling mix (houses / semi / flats): 5 / 0 / 0

Data sources & freshness

2021 Census — General Community Profile — Australian Bureau of Statistics · Period: 2021 · Updated on site 1 July 2026 at 3:56 pm ACST · 2021 Census release
The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.

Crime & safety

Total offences (2024–25): 7
Against the person: 3
Against property: 4
Rate per 1,000 residents: 14.9
Person-crime prevalence: About 1 in 157 residents
State safety percentile: 15.9th (lower crime is better)
Family & domestic abuse offences: 42
Year-on-year change: 0%

Most common offence types

Common Assault1
Obtain Benefit By Deception1
Sct - Non Residence1
Serious Assault Not Resulting In Injury2
Theft From Motor Vehicle1

Data sources & freshness

SAPOL reported crime statistics — South Australia Police — OpenData · Period: 2024-25; 2024-25 → 2024-25 · Updated on site 1 July 2026 at 4:21 pm ACST · Financial-year releases

Planning & development

Development applications from PlanSA register (lodged 2020–2026) and EPA licensed activities.

115 planning-related records

2026· 9 proposals

June 2026
To construct a garaport associated with an existing dwelling18 Jun 2026
13 LAKES PARK DR OB FLAT SA 5291Under Assessment
May 2026
To construct an outbuilding.13 May 2026
64 MCCORMICK RD OB FLAT SA 5291Under Assessment
This is a retrospective approval for a Stratco Kit lean to pergola extension to existing dwelling11 May 2026
18 LAKES PARK DR OB FLAT SA 5291Decision Made
March 2026
Land Division - Boundary Realignment - (3 into 2)04 Mar 2026
108 CLARKE RD OB FLAT SA 5291;117 WHITES FLAT RD OB FLAT SA 5291;LOT 834 CLARKE RD OB FLAT SA 5291Decision Made
February 2026
To construct a detached dwelling27 Feb 2026
13 BLUE WATER CT OB FLAT SA 5291Under Assessment
Construct new Detached Dwelling and convert existing dwelling to a Class 10A Outbuilding (non-habitable)26 Feb 2026
57 BERKEFELD RD OB FLAT SA 5291Under Assessment
To construct a detached dwelling.20 Feb 2026
21 LAKES PARK DR OB FLAT SA 5291Decision Made
January 2026
To construct a detached dwelling16 Jan 2026
5 BLUE WATER CT OB FLAT SA 5291Decision Made
Store building including short term function venue use and advertising signage15 Jan 2026
11 CLARKE RD OB FLAT SA 5291Decision Made

2025· 27 proposals

December 2025
To construct a detached dwelling10 Dec 2025
9 RIDGE RD OB FLAT SA 5291Decision Made
November 2025
To construct a detached dwelling and outbuilding.21 Nov 2025
31 -39 MELLERAY CT OB FLAT SA 5291Decision Made
To construct a detached dwelling14 Nov 2025
9 BLUE WATER CT OB FLAT SA 5291Decision Made
To install a swimming pool with associated pool fencing.07 Nov 2025
9 BLUE WATER CT OB FLAT SA 5291Decision Made
October 2025
Land Division - Boundary Realignment30 Oct 2025
117 JOHNSTON RD OB FLAT SA 5291;141 JOHNSTON RD OB FLAT SA 5291Decision Made
Agricultural Building17 Oct 2025
843 GLENELG RIVER RD OB FLAT SA 5291Decision Made
To construct a detached dwelling with an associated outbuilding10 Oct 2025
22 -30 MELLERAY CT OB FLAT SA 5291Decision Made
To construct a detached dwelling08 Oct 2025
11 BLUE WATER CT OB FLAT SA 5291Decision Made
September 2025
To construct a detached dwelling and outbuilding.22 Sep 2025
62 MCCORMICK RD OB FLAT SA 5291Under Assessment
August 2025
To construct two outbuildings associated with the existing dwelling for the storage of classic car collection, ride-on mower collection, and hobby purposes (welding, carpentry, sculpture making)19 Aug 2025
LOT 12 VALLEY CT OB FLAT SA 5291Decision Made
July 2025
Outbuilding26 Jul 2025
131 BERKEFELD RD OB FLAT SA 5291Decision Made
Outbuilding23 Jul 2025
71 BLOCKERS LANE OB FLAT SA 5291Decision Made
June 2025
Outbuilding25 Jun 2025
221 WHITEHEAD RD OB FLAT SA 5291Decision Made
To construct a detached dwelling12 Jun 2025
20 BLUE WATER CT OB FLAT SA 5291Decision Made
Construction of an Amenities Block06 Jun 2025
11 CLARKE RD OB FLAT SA 5291Decision Made
May 2025
To construct a detached dwelling01 May 2025
22 BLUE WATER CT OB FLAT SA 5291Decision Made
April 2025
Agricultural Building (for storage of hay and farm machinery)22 Apr 2025
184 JOHNSTON RD OB FLAT SA 5291Decision Made
To construct a detached dwelling.17 Apr 2025
18 BLUE WATER CT OB FLAT SA 5291Decision Made
Carport (freestanding)15 Apr 2025
31 MCCORMICK RD OB FLAT SA 5291Decision Made
To construct a detached dwelling09 Apr 2025
17 BLUE WATER CT OB FLAT SA 5291Decision Made
To construct a detached dwelling08 Apr 2025
15 BLUE WATER CT OB FLAT SA 5291Decision Made
To construct an ancillary building to a detached dwelling08 Apr 2025
12 -20 MELLERAY CT OB FLAT SA 5291Decision Made
March 2025
Advertising Signage attached to the Store Sheds (8 x signs for sponsorship purposes)19 Mar 2025
11 CLARKE RD OB FLAT SA 5291Decision Made
To construct a detached dwelling18 Mar 2025
21 BLUE WATER CT OB FLAT SA 5291Decision Made
February 2025
Outbuilding (one sided) attached to two existing outbuildings21 Feb 2025
52 BERKEFELD RD OB FLAT SA 5291Decision Made
To construct an outbuilding.14 Feb 2025
48 LAKES PARK DR OB FLAT SA 5291Decision Made
January 2025
To construct a detached dwelling.30 Jan 2025
8 RIDGE RD OB FLAT SA 5291Decision Made

2024· 24 proposals

November 2024
Construction of Office (Shipping Container)26 Nov 2024
11 CLARKE RD OB FLAT SA 5291Decision Made
To construct a detached dwelling14 Nov 2024
16 BLUE WATER CT OB FLAT SA 5291Decision Made
to construct a swimming pool on the site of an existing dwelling.07 Nov 2024
12 -20 MELLERAY CT OB FLAT SA 5291Decision Made
October 2024
Agricultural Building (Machinery shed)11 Oct 2024
58 WHITEHEAD RD OB FLAT SA 5291Decision Made

2023· 11 proposals

11 proposals lodged in 2023. Individual listings are kept for the most recent proposals.

2022· 21 proposals

21 proposals lodged in 2022. Individual listings are kept for the most recent proposals.

2021· 15 proposals

15 proposals lodged in 2021. Individual listings are kept for the most recent proposals.

2020· 7 proposals

7 proposals lodged in 2020. Individual listings are kept for the most recent proposals.

Data sources & freshness

PlanSA development applications & EPA licences — Government of South Australia — PlanSA · Period: 2020; 2020–2026; 2021… · Updated on site 1 July 2026 at 4:10 pm ACST

Amenities

No OpenStreetMap amenities mapped for this suburb yet.

Data sources & freshness

OpenStreetMap amenities — OpenStreetMap contributors · Period: current · Updated on site 1 July 2026 at 4:05 pm ACST · Weekly refresh

Socio-economic (SEIFA)

IRSAD decile (2021): 8/10
IRSD decile (2021): 9/10

SEIFA indexes from ABS 2021. Decile 10 = most advantaged / least disadvantaged in Australia.

Data sources & freshness

SEIFA 2021 (IRSAD / IRSD) — Australian Bureau of Statistics · Period: 2021 · Updated on site 1 July 2026 at 3:56 pm ACST · 2021 SEIFA release

Hazards

Bushfire planning zone: Overlay applies

Bushfire overlay checked at suburb centroid via SA Planning geohub. Safer places from CFS designated locations.

Data sources & freshness

Bushfire & hazard overlays (SA) — Government of South Australia · Period: current · Updated on site 1 July 2026 at 4:21 pm ACST

Desirability index

Desirability score: 88.1/100
Cohort rank: #20 among Coastal & beach suburbs

Data sources & freshness

Suburb Guide desirability index — Suburb Guide (derived score) · Period: current · Updated on site 1 July 2026 at 4:21 pm ACST · Derived from source metrics

Recent changes

Advertising Signage attached to the Store Sheds (8 x signs for sponsorship purposes)planning11 CLARKE RD OB FLAT SA 5291Lodged 19 Mar 2025 · Decision Made
Agricultural Buildingplanning843 GLENELG RIVER RD OB FLAT SA 5291Lodged 17 Oct 2025 · Decision Made
Agricultural Building (Machinery shed)planning58 WHITEHEAD RD OB FLAT SA 5291Lodged 11 Oct 2024 · Decision Made
Agricultural Building (for storage of hay and farm machinery)planning184 JOHNSTON RD OB FLAT SA 5291Lodged 22 Apr 2025 · Decision Made
Carport (freestanding)planning31 MCCORMICK RD OB FLAT SA 5291Lodged 15 Apr 2025 · Decision Made
Construct new Detached Dwelling and convert existing dwelling to a Class 10A Outbuilding (non-habitable)planning57 BERKEFELD RD OB FLAT SA 5291Lodged 26 Feb 2026 · Under Assessment
Construction of Office (Shipping Container)planning11 CLARKE RD OB FLAT SA 5291Lodged 26 Nov 2024 · Decision Made
Construction of an Amenities Blockplanning11 CLARKE RD OB FLAT SA 5291Lodged 06 Jun 2025 · Decision Made
Land Division - Boundary Realignmentplanning117 JOHNSTON RD OB FLAT SA 5291;141 JOHNSTON RD OB FLAT SA 5291Lodged 30 Oct 2025 · Decision Made
Land Division - Boundary Realignment - (3 into 2)planning108 CLARKE RD OB FLAT SA 5291;117 WHITES FLAT RD OB FLAT SA 5291;LOT 834 CLARKE RD OB FLAT SA 5291Lodged 04 Mar 2026 · Decision Made

Data sources & freshness

PlanSA development applications & EPA licences — Government of South Australia — PlanSA · Updated on site 1 July 2026 at 4:10 pm ACST

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