QED Engineers civil and structural engineers logo
0421 157 963

Structural & Civil Engineers in Sydney

Planning a renovation, extension, new home or development in Sydney? QED Engineers provides registered structural and civil engineering across Greater Sydney — from single-storey extensions and retaining walls to multi-residential and Class 2 buildings. Our team delivers clear, buildable, compliant designs and moves fast, with a fee proposal typically back to you within 24 hours.

As a NSW-registered Design & Building Practitioner and a nationally recognised engineering practice, we work with homeowners, architects, builders and developers to get projects approved and built without surprises.

Engineering for Sydney's ground conditions

Sydney's geology is famously varied, and good footings start with understanding the ground. Across the basin you'll find Hawkesbury sandstone ridgelines, reactive shale-derived clays (common through Western Sydney and the Hills) that shrink and swell with moisture, and sandy profiles closer to the coast. Getting the site classification right (to AS 2870 — Class A, S, M, H1/H2, E or P) is what protects your slab from cracking and your budget from over-engineering.

Sydney projects also frequently involve sloping and split-level sites, heritage overlays (particularly through the Inner West and Eastern Suburbs), bushfire-prone land (BAL) on bushland fringes, and BASIX and stormwater requirements that differ council to council. We design with these local realities in mind so your documentation clears council the first time.

Registered for NSW projects — including Class 2 buildings

Under the NSW Design and Building Practitioners Act 2020, structural designs for Class 2 buildings (and buildings with a Class 2 part), and certain Class 3 and 9c buildings, must be prepared and declared by a registered Design Practitioner. QED Engineers holds this registration, so your regulated designs are compliant and lodgeable on the NSW Planning Portal.

Our credentials:

  • NSW Design & Building Practitioner (registered)
  • RPEQ via the Board of Professional Engineers Queensland (for QLD projects)
  • Listed on the National Engineers Register (NER)

Areas we serve across Greater Sydney

We support projects across the Sydney metropolitan area, including the Inner West, Eastern Suburbs, Lower & Upper North Shore, Northern Beaches, Northern Suburbs, Hills District, Sutherland Shire, South-West and Western Sydney — plus surrounding regions such as the Central Coast, Newcastle and Wollongong on suitable projects.

Who we work with

  • Homeowners — clear advice for renovations, extensions and additions, in plain English.
  • Architects & building designers — collaborative structural input that respects the design intent.
  • Builders — responsive documentation and on-time turnaround to keep sites moving.
  • Developers — multi-residential and Class 2 expertise with compliant, declared designs.

How it works

  1. Send us your plans. Share your architectural or concept drawings and site details.
  2. Get a fast fee proposal. We review and return a clear, itemised quote — typically within 24 hours.
  3. We design & document. Compliant structural/civil design, ready for council or the NSW Planning Portal.
  4. We support you on site. Answering builder queries and providing inspections/certification as needed.

Frequently asked questions

Yes. Removing or altering a load-bearing wall changes how loads travel through your home, so a structural engineer must design a suitable beam and support to carry the load safely. We provide the design and documentation your builder and (where required) your council or certifier will need.
It depends on the scope — a single beam design for a wall removal is very different from a full two-storey home or a Class 2 development. Simple residential jobs are usually a fixed fee, while larger projects are quoted on scope. Send us your plans and we'll return an itemised fee proposal, typically within 24 hours, so there are no surprises.
If your project is a Class 2 building (or has a Class 2 part) — such as apartments or residential units — then under the NSW Design and Building Practitioners Act your regulated structural designs must be prepared and declared by a registered Design Practitioner. QED Engineers holds this registration.
A site classification (to AS 2870) assesses your soil's reactivity — how much it moves with moisture — and drives your footing design. Sydney sites range from stable sandstone to highly reactive clays, so classification is essential to design footings that won't crack or over-spend. We can arrange or work from your geotechnical/soil report.
Turnaround depends on complexity and current workload. Straightforward residential documentation is usually 5–10 business days larger or multi-residential projects take longer. We'll confirm a realistic timeframe with your fee proposal.
Yes. Sloping and split-level blocks are common across Sydney, and we regularly design retaining walls, drainage and footing solutions tailored to the slope, soil and drainage conditions of your specific site.

Ready to start your Sydney project?

Send us your plans for a fast, no-obligation fee proposal from a registered structural and civil engineering team.
Copyright © 2026 QED Engineers - All Rights Reserved.
envelopephone-handsetclockcrossmenuchevron-down