Post-handover Building Inspection. Essendon.
Recently, I completed a post-handover building inspection in Essendon, where more than 50 defects and non-compliant building items were identified throughout the property. While many homeowners assume that receiving the keys means the home has been completed to an acceptable standard, inspections like this demonstrate why an independent building inspection can be one of the most valuable investments a homeowner makes.
Some of the more significant defects identified during the inspection included issues relating to weatherproofing, waterproofing, drainage, masonry construction, cladding installation, and roof plumbing, all of which have the potential to cause costly damage if left unaddressed.
Key Defects Identified
Missing Window Flashings Behind Cladding
Window flashings are critical components that help direct water away from the building envelope. At this property, flashings had not been installed above windows where external cladding had been fitted, contrary to NCC Volume 2 requirements.
Defects of this nature can allow water ingress into wall cavities, potentially leading to moisture damage, mould growth, and deterioration of structural components over time.
Incorrectly Installed Box Gutter Sumps and Overflow Devices
Several box gutter sumps and side overflow devices were found to be installed incorrectly and were not adequately sealed.
Box gutters are designed to manage large volumes of rainwater, and when these systems are improperly installed, the risk of water penetration into the building significantly increases.
Non-Compliant High-Capacity Overflow Provisions
The inspection identified multiple instances where high-capacity overflow devices had not been installed in accordance with AS/NZS 3500.3.
These overflow provisions are intended to provide a safe discharge point during heavy rainfall events and are an important safeguard against internal flooding and water damage.
Overflows Not Discharging to Atmosphere
Where sumps were installed, the overflow arrangements did not discharge to the atmosphere as required.
This defect reduces the effectiveness of the drainage system and increases the likelihood of water backing up into the roof drainage system during significant rainfall events.
Cladding Installed Below Ground Level
The external façade cladding was found to extend below finished ground levels in several locations.
Adequate clearance between cladding and adjacent ground surfaces is essential to prevent moisture transfer, premature deterioration of building materials, pest ingress, and long-term durability issues.
Blocked Weepholes and Incorrect Damp Proof Course (DPC) Installation
The inspection identified sections of masonry construction where weepholes were blocked and the damp-proof course (DPC) had not been correctly turned up within the wall cavity.
Weepholes play a critical role in allowing moisture to escape from the wall cavity, while the DPC helps prevent water from tracking into the building structure. When either of these elements are installed incorrectly, moisture can become trapped within the wall system, potentially leading to internal water damage, efflorescence, mould growth, and deterioration of masonry components.
Missing Water Stops to Cavity Sliding Door Openings
Waterproofing defects were also identified at cavity sliding door openings, where water stops had not been installed in accordance with AS 3740:2021.
Water stops are designed to prevent water from escaping beneath door frames and entering adjoining floor and wall structures. Without these critical waterproofing details, water can migrate into concealed building elements, resulting in damage that often remains undetected until significant deterioration has occurred.
Why Post-Handover Inspections Matter
Many defects are not immediately visible to homeowners and may only become apparent years after moving into the property. By conducting a thorough post-handover inspection, defects can be identified early and raised with the builder while warranty obligations remain in place.
In this Essendon inspection alone, over 50 defects were documented across multiple trades and construction disciplines. While some issues were cosmetic, many related directly to the building's ability to manage water, maintain durability, and perform as intended over its service life.
Waterproofing, drainage, masonry detailing, roof plumbing, and cladding installation continue to be some of the most common areas where defects are identified in newly constructed homes. Left unresolved, these defects can result in significant rectification costs and ongoing maintenance issues for homeowners.
Protect Your Investment
A new home should meet the requirements of the National Construction Code, relevant Australian Standards, and accepted industry workmanship standards.
If you've recently taken possession of a newly built home, a professional independent post-handover inspection can provide peace of mind and ensure defects are identified before they become costly problems.
Thinking about a post-handover inspection?
Contact us today to ensure your new home has been built to the standard you paid for and deserves.