Stickybeak

Development pipeline in Thornleigh (2120)

Thornleigh (2120) is part of the Hornsby local government area. Development activity in the suburb, including new apartment buildings, townhouse projects, and subdivision approvals, directly affects the supply of dwellings available to buyers and renters over the coming years. More supply moderates price growth; restricted supply supports it. The pipeline data below reflects publicly available DA records from Hornsby Council and NSW Planning.

DEVELOPMENT PIPELINE · NSW PLANNING PORTAL · 2120

What’s in the pipeline

NSW Planning Portal feed paused at the source for postcode 2120. Expected back by Q3 2026.

NSW PLANNING PORTAL

For some buyers, a healthy development pipeline in Thornleigh is a positive signal rather than a concern. It indicates that developers see demand sufficient to justify new supply, that the suburb's zoning allows density, and that the infrastructure is being invested in. Gentrifying suburbs in the Hornsby area with strong pipelines often see established housing benefit from proximity to new amenity and improved streetscapes, even as new supply temporarily moderates price growth.

Development pipeline in nearby suburbs

Asquith 2077Berowra 2081Mount Colah 2079Mount Kuring-Gai 2080Normanhurst 2076

More about Thornleigh

All insights →Flood riskBushfire riskSchoolsWalkabilityAmenitiesCommute