Sydney, New South Wales
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Residential

338 Pitt Street

Integrated fire, acoustic, and ventilation strategies for a landmark twin-tower development, aligning performance, compliance, and design at scale.

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338 Pitt Street

Project Overview

338 Pitt Street is one of the largest CBD developments currently progressing in Sydney, transforming a full city block into a landmark twin-tower mixed-use precinct. The project will deliver two towers of approximately 80 storeys, comprising a major residential and hotel offering supported by retail, podium activation, and shared amenity.The scale, height, and density of the development create significant technical and planning challenges across a constrained CBD site. E-LAB is supporting the project to align performance, compliance, and design outcomes across acoustics, natural ventilation, and fire engineering.

SECTOR

Residential

Location

Sydney, New South Wales

Services

Fire Engineering, Acoustics, Natural Ventilation

Project Timeline

2025 - 2029

CLIENT

Billbergia & Metrics

Project Value

$700M

Our Approach

  • Acoustic and vibration design across residential, hotel, retail, and mixed-use interfaces
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  • Environmental noise assessment and development of project-specific criteria
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  • Façade acoustic design balancing glazing, operability, and internal amenity
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  • Building services noise and vibration control, including isolation strategies
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  • Development of acoustic natural ventilation strategies aligned with planning requirements
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  • CFD and airflow modelling to support ventilation performance and approvals
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  • Design of operable façade systems balancing airflow, noise ingress, and usability
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  • Performance-based fire engineering strategy across towers and podium
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  • Egress, smoke management, and compartmentation design for complex mixed-use conditions
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  • Multidisciplinary coordination across façade, services, structure, and planning teams

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Outcome

  • Clear, coordinated strategies across acoustics, ventilation, and fire engineering
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  • De-risked planning through a compliant and defendable natural ventilation approach
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  • Avoided complex façade systems, improving operability and long-term asset performance
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  • Balanced façade design to achieve acoustic performance, ventilation, and amenity outcomes
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  • Reduced redesign risk through early modelling and informed design decisions
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  • Resolved complex mixed-use interfaces protecting residential and hotel amenity
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  • Mitigated noise and vibration risks from services and structure-borne pathways
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  • Delivered performance-based fire strategies supporting architectural intent
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  • Reduced procurement risk through clear, coordinated, buildable documentation
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  • Supported programme certainty across a complex, high-density CBD development

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Applied Disciplines

Acoustics Engineering (Noise & Vibration)
Building Performance
Sustainability Engineering
Fire Engineering
CFD & Wind Engineering
Human-Centred Design

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