Neighbour Development Alerts in Hornsby, NSW
See DA and CDC applications lodged near any Hornsby address — updated weekly from the NSW ePlanning Portal. Residential additions, secondary dwellings, bushland interfaces. Subscribe to get emailed every Monday when new applications are lodged within 200m of your property. Combine with a granny flat eligibility check to understand the full development picture, or run a shadow analysis to see how nearby DAs could affect your property.
Alert radius
200m
from your address
Check frequency
Weekly
Monday 7:00 am AEST
Activity level
Medium
in Hornsby
Weekly DA monitoring — coming soon
Get emailed every Monday when new DAs or CDCs are lodged within 200m of this address. Join the waitlist to be first in line.
DA and CDC data sourced live from NSW ePlanning Portal. Application details may lag lodgement by 1–3 business days.
Development monitoring in Hornsby — common questions
How active is development in Hornsby Shire?
Hornsby has moderate DA volumes. Secondary dwelling CDCs and residential additions are common in established suburbs. Hornsby CBD sees periodic larger DA activity. Bushland interface properties generate tree removal DAs and development near biodiversity mapping.
What types of development should Hornsby homeowners watch?
Secondary dwelling and dual-occupancy DAs — common in established R2 suburbs like Pennant Hills, West Pennant Hills, and Cherrybrook. Tree removal DAs can indicate upcoming construction. Multi-dwelling housing in higher-density zones near Hornsby and Waitara stations.
Can I object to a neighbour's DA in Hornsby?
Yes. Hornsby Shire Council publicly notifies DAs. Some DAs near bushland or heritage areas have extended notification periods. Submit a written objection within the notification window.
How far away do alerts cover?
Alerts cover applications within 200m. In Hornsby's lower-density suburban and semi-rural areas this typically covers 25–50 properties.
Do alerts flag tree removal DAs in Hornsby?
Yes. Tree removal DAs are lodged on the NSW ePlanning Portal and are included in alert checks. In Hornsby's bushland corridors, tree DAs can be an early signal of planned development on a neighbouring property.
More property checks for Hornsby
Also check nearby councils
DA and CDC data sourced from the NSW ePlanning Portal. Applications typically appear within 24–48 hours of lodgement. Weekly alert checks run every Monday at 7:00 am AEST. Not all development types require DA or CDC lodgement on the ePlanning Portal — minor exempt development may not appear. Not legal advice.