- Retaining structure design missing or underspecified for sloped sites
- Incomplete documentation
- Drawing-calculation mismatch
Resubmission process
Revise and resubmit addressing the specific comments raised.
Realistic timelines
Sites with mountainous or sloped terrain typically require more detailed geotechnical and retaining-structure input, which is worth scoping before drawings are finalized. We don't guarantee approval outcomes or timeframes โ see our A-Z compliance service for how we structure submissions to minimize avoidable delay.
Last reviewed: August 2026. Confirm current procedural detail directly with the authority before relying on this guide for a live submission.