NSW development applications
Development applications in Thornleigh
81 DAs lodged in Thornleigh in the last 2 years (336 tracked all-time). Assessed by The Council of the Shire of Hornsby.
Open for community submissions now
What's being proposed
- House 38
- Home works 6
- Apartments & multi-dwelling 14
- Commercial & retail 16
- Industrial 3
- Subdivision 7
- Civic & infrastructure 5
- Demolition 1
Recent applications
- 52 DUFFY AVENUE THORNLEIGH 2120 Demolition, Subdivision Submissions close 13 Jul 2026 9 days left
- 38 DUFFY AVENUE THORNLEIGH 2120 Subdivision Submissions close 6 Jul 2026 2 days left
- 17 MORGAN STREET THORNLEIGH 2120 Demolition, Dwelling house — 1 new dwelling — 3 storeys
- 11 ADAMSON AVENUE THORNLEIGH 2120 Dual occupancy, Demolition, Erection of a new structure — 2 new dwellings — 2 storeys
- 8 COOLABAH CLOSE THORNLEIGH 2120 Dwelling house, Alterations or additions to an existing building or structure, Erection of a new structure — 1 new dwelling — 2 storeys
- 23 VALE ROAD THORNLEIGH 2120 Dwelling house, Erection of a new structure — 1 storey
- 73 DUFFY AVENUE THORNLEIGH 2120 Demolition, Erection of a new structure, Dual occupancy (attached) — 2 new dwellings — 2 storeys
- 200-206 PENNANT HILLS ROAD THORNLEIGH 2120 Signage, Advertising and signage, Advertising structure
- 50A THE ESPLANADE THORNLEIGH 2120 Demolition, Dwelling house, Erection of a new structure — 1 new dwelling
- 46 WAREEMBA AVENUE THORNLEIGH 2120 Dwelling house, Alterations or additions to an existing building or structure
- 1 JUDSON ROAD THORNLEIGH 2120 Dwelling house, Alterations or additions to an existing building or structure — 1 new dwelling — 2 storeys
- 3 3-5 CHILVERS ROAD THORNLEIGH 2120 Place of public worship, Change of use of land or a building or the classification of a building under the Building Code of Australia
- 28 EDMUNDSON CLOSE THORNLEIGH 2120 Dwelling house, Alterations or additions to an existing building or structure — 2 new dwellings — 2 storeys
- 8 TILLOCK STREET THORNLEIGH 2120 Dual occupancy, Demolition, Subdivision — 2 new dwellings — 2 storeys
- 50 DUFFY AVENUE THORNLEIGH 2120 Dwelling house, Alterations or additions to an existing building or structure — 1 new dwelling — 1 storey
- 182 PENNANT HILLS ROAD THORNLEIGH 2120 Restaurant or cafe, Food and drink premise, Hours of operation and trading
- 15 DARTFORD ROAD THORNLEIGH 2120 Dwelling house, Erection of a new structure — 1 new dwelling — 2 storeys
- 35 STATION STREET THORNLEIGH 2120 Secondary dwelling, Demolition, Dwelling house — 2 new dwellings — 1 storey
- 18 ADAMSON AVENUE THORNLEIGH 2120 Dwelling house, Alterations or additions to an existing building or structure — 1 new dwelling — 1 storey
- 67 BERESFORD ROAD THORNLEIGH 2120 Dwelling house, Erection of a new structure — 1 new dwelling
- 15 BERESFORD ROAD THORNLEIGH 2120 Dual occupancy, Alterations or additions to an existing building or structure, Dual occupancy (attached)
- 21-31 CENTRAL AVENUE THORNLEIGH 2120 Commercial development, Alterations or additions to an existing building or structure
- 24 MORGAN STREET THORNLEIGH 2120 Alterations or additions to an existing building or structure, Earthworks, retaining walls and structural support
- 16 COOLABAH CLOSE THORNLEIGH 2120 Dwelling house, Alterations or additions to an existing building or structure — 1 new dwelling — 2 storeys
- 6 LYMOORE AVENUE THORNLEIGH 2120 Change of use of land or a building or the classification of a building under the Building Code of Australia, Light industry
- 50A THE ESPLANADE THORNLEIGH 2120 Demolition, Dwelling house, Erection of a new structure — 1 new dwelling — 2 storeys
- 182 PENNANT HILLS ROAD THORNLEIGH 2120 Restaurant or cafe, Advertising and signage, Alterations or additions to an existing building or structure
- 7 PIONEER AVENUE THORNLEIGH 2120 Change of use of land or a building or the classification of a building under the Building Code of Australia, Recreation facility (indoor)
- 54 GOODLANDS AVENUE THORNLEIGH 2120 Demolition, Dwelling house, Erection of a new structure — 1 new dwelling
- 22 THE ESPLANADE THORNLEIGH 2120 Erection of a new structure, Medical centre, Change of use of land or a building or the classification of a building under the Building Code of Australia
Showing the latest 30 of 81 — explore all of them on the map.