What are the most common reasons a site fails initial checks?
Written by Clayton Bielby
Updated at March 31st, 2025
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Answer:
The most common reasons a site may fail a Preliminary Site Feasibility Check (Prelim) include:
- Zoning restrictions that prohibit secondary dwellings
- Insufficient lot size or non-compliant boundaries/setbacks
- Environmental overlays requiring a Development Application (DA)
- Heritage or protected vegetation overlays
- Block is unregistered, strata, or not accessible by crane/truck
- Easements or utility lines in the proposed build zone
Expandify reviews these risks early in the process so you don’t waste time or money on a site that’s unlikely to be approved.