NSW · Wollongong Council
Mount Saint Thomas, NSW, 2500
Desirability index
8.4/100
How this score is calculated#679 among Metro Sydney suburbs
Suburb snapshot
Mount Saint Thomas is a small locality in the Wollongong area, home to around 1,449 residents (2021 Census). Recent indicators show 7,381 offences in Jan 2025 to Dec 2025 with relatively stable year-on-year trends (-3%), roughly 5093.9 offences per 1,000 residents, median weekly rent around $650 (flats $620, houses $720), strong public transport coverage with many public transport stops, a quieter amenity profile than busier neighbouring suburbs, and notable planning and development activity on record. Snapshot data also shows parks or public open space within the suburb.
Population
- Population
- 1,449
- Median age
- 37
- Median household income / week
- $1,835
- Dwelling vacancy
- 2.3%
- Unoccupied private dwellings
- 13 of 568
- Median monthly mortgage
- $2,167
- Employment rate
- 59.2%
- Dwelling mix (houses / semi / flats)
- 21 / 36 / 7
Data sources & freshness
- 2021 Census — General Community Profile — Australian Bureau of Statistics · Period: 2021 · Updated on site · 2021 Census release
The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.
Housing
- Flats / units (January to March 2026)
- $620
- Houses (January to March 2026)
- $720
- All types (January to March 2026)
- $650
- Rental bonds lodged (January to March 2026)
- 758
Median weekly rent from NSW DCJ rent tables. Figures can be unreliable where few bonds were lodged in the quarter.
Data sources & freshness
- DCJ rent tables — NSW Department of Communities and Justice · Period: January to March 2026 · Updated on site · Quarterly releases
Crime & safety
- Total offences (Jan 2025 to Dec 2025)
- 7,381
- Against the person
- 1,086
- Against property
- 2,279
- Rate per 1,000 residents
- 5,093.9
- Person-crime prevalence
- About 1 in 1 residents
- State safety percentile
- 60.9th (lower crime is better)
- Year-on-year change
- -2.7%
Most common offence types
- Breach Bail Conditions1025
- Malicious Damage To Property396
- Non-Domestic Violence Related Assault312
- Steal From Retail Store502
- Transport Regulatory Offences1491
Data sources & freshness
- BOCSAR postcode crime statistics — NSW Bureau of Crime Statistics and Research · Period: Jan 2024 to Dec 2024 → Jan 2025 to Dec 2025; Jan 2025 to Dec 2025 · Updated on site · Rolling 12-month windows
Public transport
20 public transport stops in this suburb
- Gladstone Av At Prospect St
- Gladstone Av Before Mount St
- Taronga Av At Ocean St
- The Av After Taronga Av
- The Av At Masters Rd
Data sources & freshness
- GTFS public transport stops — State transport authority open-data feeds · Period: current · Updated on site · GTFS static feed
Planning & development
Development applications from NSW Planning Portal (lodged 2020–2026).
50 planning-related records
2026· 1 proposal
January 2026
- Dwelling house; Alterations or additions to an existing building or structure56 THE AVENUE MOUNT SAINT THOMAS 2500Determined
2025· 10 proposals
December 2025
- Demolition; Dwelling house; Alterations or additions to an existing building or structure; Balcony, deck, patio, terrace or verandah; Driveways and hard stand spaces; Garage, carport or carparking space63 THE AVENUE MOUNT SAINT THOMAS 2500Determined
November 2025
- Alterations or additions to an existing building or structure; Access ramp; Balcony, deck, patio, terrace or verandah17 MORAN PARADE MOUNT SAINT THOMAS 2500Determined
October 2025
- Shed; Dwelling house; Erection of a new structure22 HILL STREET MOUNT SAINT THOMAS 2500Determined
July 2025
- Alterations or additions to an existing building or structure; Erection of a new structure; Earthworks, retaining walls and structural support; Garage, carport or carparking space; Minor building alterations (external)35 THE AVENUE MOUNT SAINT THOMAS 2500Determined
- Home business; Change of use of land or a building or the classification of a building under the Building Code of Australia9 GRASMERE STREET MOUNT SAINT THOMAS 2500Determined
May 2025
- Dwelling house; Erection of a new structure42 WALDRON STREET MOUNT SAINT THOMAS 2500Determined
April 2025
- Demolition; Dwelling house42 WALDRON STREET MOUNT SAINT THOMAS 2500Determined
March 2025
- Shed; Dwelling house; Erection of a new structure22 HILL STREET MOUNT SAINT THOMAS 2500Determined
- Dwelling house; Alterations or additions to an existing building or structure96 THE AVENUE MOUNT SAINT THOMAS 2500Determined
January 2025
- Residential flat building; Alterations or additions to an existing building or structure248 GLADSTONE AVENUE MOUNT SAINT THOMAS 2500Withdrawn
2024· 8 proposals
July 2024
- Demolition; Dwelling house; Alterations or additions to an existing building or structure; Balcony, deck, patio, terrace or verandah; Driveways and hard stand spaces; Garage, carport or carparking space63 THE AVENUE MOUNT SAINT THOMAS 2500Determined
- Demolition; Dwelling house; Alterations or additions to an existing building or structure; Residential Accommodation42 WALDRON STREET MOUNT SAINT THOMAS 2500Determined
June 2024
- Demolition; Dwelling house; Erection of a new structure; Dual occupancy (attached)342 GLADSTONE AVENUE MOUNT SAINT THOMAS 2500Determined
May 2024
- Dwelling house; Erection of a new structure17 PROSPECT STREET MOUNT SAINT THOMAS 2500Determined
March 2024
- Attached dwelling; Alterations or additions to an existing building or structure11 GRASMERE STREET MOUNT SAINT THOMAS 2500Determined
- Alterations or additions to an existing building or structure; Balcony, deck, patio, terrace or verandah318-320 GLADSTONE AVENUE MOUNT SAINT THOMAS 2500Determined
- Demolition; Dwelling house; Alterations or additions to an existing building or structure; Erection of a new structure1 JOHN STREET MOUNT SAINT THOMAS 2500Determined
- Alterations or additions to an existing building or structure; Garage, carport or carparking space14 JOHN STREET MOUNT SAINT THOMAS 2500Determined
2023· 4 proposals
December 2023
- Alterations or additions to an existing building or structure; Balcony, deck, patio, terrace or verandah80 OCEAN STREET MOUNT SAINT THOMAS 2500Determined
September 2023
- Shed79 TARONGA AVENUE MOUNT SAINT THOMAS 2500Determined
April 2023
- Stratum / community title subdivision248 GLADSTONE AVENUE MOUNT SAINT THOMAS 2500Withdrawn
March 2023
- Shed22 HILL STREET MOUNT SAINT THOMAS 2500Determined
2022· 6 proposals
December 2022
- Alterations and additions to residential development65 THE AVENUE MOUNT SAINT THOMAS 2500Determined
- Alterations and additions to residential development74 OCEAN STREET MOUNT SAINT THOMAS 2500Determined
September 2022
- Balconies, decks, patios, terraces or verandahs; Demolition; Alterations and additions to residential development; Earthworks / change in levels; Retaining walls, protection of trees23 PROSPECT STREET MOUNT SAINT THOMAS 2500Determined
- Dual occupancy22 HILL STREET MOUNT SAINT THOMAS 2500Withdrawn
August 2022
- Dwelling8 HILL STREET MOUNT SAINT THOMAS 2500Determined
June 2022
- Demolition8 HILL STREET MOUNT SAINT THOMAS 2500Determined
2021· 12 proposals
November 2021
- Secondary dwelling13 MORAN PARADE MOUNT SAINT THOMAS 2500Determined
- Alterations and additions to residential development14 JOHN STREET MOUNT SAINT THOMAS 2500Determined
September 2021
- Alterations and additions to residential development58 TARONGA AVENUE MOUNT SAINT THOMAS 2500Determined
August 2021
- Demolition; Alterations and additions to residential development71 THE AVENUE MOUNT SAINT THOMAS 2500Determined
July 2021
- Dwelling100 OCEAN STREET MOUNT SAINT THOMAS 2500Determined
- Dwelling100 OCEAN STREET MOUNT SAINT THOMAS 2500Determined
- Alterations and additions to residential development1A HICKMAN STREET MOUNT SAINT THOMAS 2500Determined
May 2021
- Dual occupancy53 TARONGA AVENUE MOUNT SAINT THOMAS 2500Determined
- Pools / decks / fencing15 GRASMERE STREET MOUNT SAINT THOMAS 2500Determined
April 2021
- Pools / decks / fencing108 THE AVENUE MOUNT SAINT THOMAS 2500Determined
February 2021
- Balconies, decks, patios, terraces or verandahs; Alterations and additions to residential development; Garages, carports and car parking spaces62 The Avenue Mount Saint Thomas 2500Determined
2020· 9 proposals
9 proposals lodged in 2020. Individual listings are kept for the most recent proposals.
Data sources & freshness
- Online DA development application register — NSW Department of Planning, Housing and Infrastructure · Period: 2020; 2020–2026; 2021… · Updated on site · Daily open-data feed (applications from Oct 2018)
Amenities
2 nearby amenities within ~1.5 km
- The Av after Taronga AvBus stop
- The Av at Masters RdBus stop
Names and addresses from OpenStreetMap. Unnamed venues show as their type (e.g. Cafe).
Data sources & freshness
- OpenStreetMap amenities — OpenStreetMap contributors · Period: current · Updated on site · Weekly refresh
Parks & reserves
1 parks and public open space in this suburb
- EA Waldron ParkPark
Data sources & freshness
- Parks & reserves — State government + ABS LGA boundaries · Period: current · Updated on site
Socio-economic (SEIFA)
- IRSAD decile (2021)
- 7/10
- IRSD decile (2021)
- 5/10
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 · 2021 SEIFA release
Hazards
- Bushfire planning zone
- No overlay at centroid
Bushfire overlay checked at suburb centroid via NSW bush fire prone land mapping.
Data sources & freshness
- Hazard planning overlays — State government hazard layers · Period: current · Updated on site
Green cover
- Parks & woodland (OSM)
- 1
- Parks (OSM)
- 1
OpenStreetMap parks and natural woodland features mapped within the suburb boundary.
Data sources & freshness
- OpenStreetMap green cover features — OpenStreetMap contributors · Period: current · Updated on site · Weekly refresh
Desirability index
- Desirability score
- 8.4/100
- Cohort rank
- #679 among Metro Sydney suburbs
Data sources & freshness
- Suburb Guide desirability index — Suburb Guide (derived score) · Period: current · Updated on site · Derived from source metrics
Recent changes
- Gladstone Av At Prospect Sttransport
- Gladstone Av Before Mount Sttransport
- Taronga Av At Ocean Sttransport
- The Av After Taronga Avtransport
- The Av At Masters Rdtransport
- EA Waldron Parkgovernmentpark
- Alterations and additions to residential developmentplanning65 THE AVENUE MOUNT SAINT THOMAS 2500Lodged 21 Dec 2022 · Determined
- Alterations and additions to residential developmentplanning74 OCEAN STREET MOUNT SAINT THOMAS 2500Lodged 09 Dec 2022 · Determined
- Alterations and additions to residential developmentplanning14 JOHN STREET MOUNT SAINT THOMAS 2500Lodged 03 Nov 2021 · Determined
- Alterations and additions to residential developmentplanning58 TARONGA AVENUE MOUNT SAINT THOMAS 2500Lodged 06 Sep 2021 · Determined
Data sources & freshness
- Parks & reserves — State government + ABS LGA boundaries · Updated on site
- Online DA development application register — NSW Department of Planning, Housing and Infrastructure · Updated on site · Daily open-data feed (applications from Oct 2018)
- GTFS public transport stops — State transport authority open-data feeds · Updated on site · GTFS static feed
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