Dylan Chresby Dylan Chresby

AEGIS chosen by the NSW Building Commissioner’s Office

AEGIS - Consulting Engineers and Project Managers - are thrilled to announce we have just been chosen by the NSW Building Commissioner’s Office as experts to assist in defects matters and remedial projects throughout NSW as part of NSW Government’s Project Intervene.

Dylan Chresby has been engaged as an Expert Engineer and Senior Independent Assessor (Mediation and Arbitration), and our Senior Project Manager Brendon Smith has been engaged as an expert waterproofing consultant, to assist with ways forward for buildings less than ten years old that are experiencing issues. 

Additionally, our company has just been approved by the building commissioner’s office for NSW Government’s Project Remediate to provide client side superintendent services for flammable cladding projects where asset owners have taken up the government remedial route. 

AEGIS already has a significant number of projects that we are delivering directly for strata buildings and we’re looking forward to delivering these additional government supported works packages. 

I think it’s going to be a busy 2023/24.

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Dylan Chresby Dylan Chresby

Massive Class 2 residential strata building remediation project

AEGIS Consulting Engineers has been awarded a truly massive Class 2 residential strata building remediation project following a successful and significant litigation claim against the Original Builder following initial Defects Inspections.

AEGIS’ engineers and construction project managers will now develop a charter for the project and develop specifications, tender and administer the various remedial works packages.

It’s such a shame to see such poor construction quality; but we look forward to getting the best outcome possible for the strata asset owners.

dchresby@aegisve.com

www.aegisve.com.au

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Dylan Chresby Dylan Chresby

New Project - Class 2 Residential Building Kingsford, Sydney

New Project - Class 2 Residential Building Kingsford, Sydney

AEGIS - Consulting Engineers has been engaged to prepare a specification and undertake the role as superintendent to remediate the issues involving water ingress into the Class 2 residential basement below, due to numerous failures within the waterproofing system across the common areas and planter boxes.

Water ingress into reinforced concrete poses a serious risk of steel reinforcement corrosion (concrete cancer), which gradually compromises structural integrity.

If you experience any water ingress in your property please contact us.

dchresby@aegisve.com

www.aegisve.com.au

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Dylan Chresby Dylan Chresby

GUIDE TO RETAINING WALLS

GUIDE TO RETAINING WALLS

CONSTRUCTION, REPLACEMENT & MANAGEMENT

Retaining walls are one of the most underestimated structures

in residential developments and most common structures to

show signs of distress or collapse. Collapse can be sudden and

catastrophic due to soil mechanics. All retaining walls must satisfy

requirements of the Building Code of Australia (BCA) and Australian

Standards (AS). All retaining walls greater than 600mm in height

within 1m of a boundary and greater than 1m in height elsewhere

must be designed by a qualified engineer.

There are three categories of approval required

for the construction of retaining walls:

1. Exempt Development

Exempt developments do not require any approvals from

Wollongong Council (approvals vary between local governments).

Wollongong Council’s Local Environment Plan 2009 (LEP) outlines

the requirements to qualify as exempt development. Wollongong’s

LEP refers to the NSW State Environmental Planning Policy (Exempt

and Complying Development Codes) 2008.

Retaining walls cannot qualify as exempt if they are:

- Greater than 600mm high

- Within 1m of a boundary or form part of the boundary

- Within 2m of another retaining wall or structure

- Within 40m of a watercourse

Additionally, exempt development cannot be carried out on land

that is classified as:

- Flood affected

- Certain wilderness areas

- Certain heritage areas

2. Complying Development

Complying development is a fast-track approval process for

straightforward development proposals. Providing the proposal

meets specific criteria then either council or a private certifier

can approve the application under a complying development

certificate. During construction the certifier will undertake

regular inspections. Upon completion of construction, an

occupation certificate is issued by the certifier.

Retaining walls that satisfy the following may qualify as

complying development providing a number of other criteria

are met.

- Less than 1m from boundary and less than 1m high

- 1-1.5m from boundary and less than 2m high

- Greater than 1.5m from boundary and less than 3m high

3. Development Application

Development that does not fit into the categories above will

require the submission of a development application (DA)

to Wollongong Council. Once a DA is approved a principle

certifying authority (PCA) must be engaged. This can either

be a private certifier or a council certifier. Before construction

can commence the PCA must issue a construction certificate.

During construction the certifier will undertake regular

inspections. Upon completion of construction, an occupation

certificate is issued by the certifier.

Repair and Maintainance

Advice from local council is that if a significant portion of

wall is to be replaced then it constitutes new development.

If maintenance work is undertaken, then records and photos

should be kept in case of complaint from neighbours or

investigation by council. Walls that are located on boundaries

are considered more critical than walls inside the plot.

The above is a summary for information purposes only,

and does not cover the approval process in its entirety.

Professional engineering advice should be sought on a

case by case basis prior to proceeding with any work.

CONTACT OUR OFFICE FOR FURTHER ADVICE

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Dylan Chresby Dylan Chresby

Underpinning Wollongong City Presbyterian Church

Phase 1 structural underpinning and strengthening works underway at the Wollongong City Presbyterian Church this week.

Significant remedial packages to follow.

Aegis provided initial civil and structural engineering investigations and reports, including geotechnical investigation, and is providing scope and specifications, contract and project management and oversight.

www.aegisve.com.au

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