SERVICES.

What We Offer

Perennial Consulting Engineers offer advisory, detailed design and project management services for all kinds of development, specializing in flood risk assessment and stormwater management.

We provide expertise in practical civil engineering solutions tailored to projects of any size or type - from single residential dwellings and dual occupancies to high rise mixed-use developments, industrial estates, infrastructure and subdivisions.

In addition to primary design and construction services, we offer:

  • Due diligence and feasibility reporting

  • Development application coordination and lodgement

  • Independent peer review, consultant scoping and coordination

  • Expert joint conferencing and reporting for NSW Land and Environment Court

  • Value engineering and design options for constructability

  • Stormwater remediation and optimization for cost effectiveness

  • Climate change and sensitivity analysis

  • Development assessment, policy review and education sessions

  • Traffic, access and servicing strategy

Primary Services

  • stormwater management

    Practical drainage solutions designed to satisfy council requirements and keep your project moving.

  • flood risk assessment

    Clear, technically sound reporting to identify flood constraints and unlock your site’s development potential.

  • Technical engineering drawing of a construction site plan with measurements, labels, and structural details for underground utilities and tank systems.

    on-site detention

    Engineered storage systems that control peak stormwater flows and meet local authority standards.

  • A detailed flood risk and planning map of a property outline showing areas of floodway in red, flood storage in yellow, flood fringe in blue, and flood planning zone in gray, with labels for existing and proposed flood defenses and property features.

    flood impact assessment

    Detailed modelling and analysis to demonstrate your development will not increase flood risk to neighbouring properties.

  • A detailed engineering drawing or site plan with measurements, annotations, and construction instructions for a project.

    frontage/access grading

    Level design and grading plans that coordinate driveway access, footpath levels and overland flow management.

Dowload Capability Statement: ADVISORY SERVICES
Dowload Capability Statement: RESIDENTIAL DESIGN

From feasibility through to certification - we see it through.