If you're extending, renovating, or removing a wall, your building surveyor won't issue a permit without structural drawings. We prepare residential structural drawings and calculations for homes across Melbourne, compliant with Australian Standards and your local council's requirements — from a single beam over a new opening to full documentation for a knockdown rebuild.
What's included
- Structural drawings and engineering calculations for your building permit
- Beam and footing sizing for load-bearing wall removals
- Upper floor addition design, including new footing and frame assessment
- Knockdown & rebuild structural design from slab to roof
Our process
- Send your plans. Architectural or concept drawings, or just a description of the job and some photos.
- Fixed-price quote. We scope the job and confirm a price and delivery date before we start.
- Drawings & calculations. Structural drawings and supporting calculations, checked before they leave our office.
- Permit-ready documents. Delivered in the format your building surveyor and council expect.
Who this is for
Homeowners planning an extension or renovation, owner-builders, and builders who need structural drawings to accompany a building permit application. We also review plans drawn up by your architect or draftsperson and provide the structural documentation to back them.
Residential Structural Design FAQs
Do I need an engineer to remove a load-bearing wall?
Yes. A registered structural engineer needs to design the replacement beam and its supports, and your building surveyor will require stamped drawings and calculations before issuing a permit.
How much does residential structural design cost?
It depends on scope — a single beam check costs far less than full drawings for a two-storey extension. We quote a fixed price before we start, and match any lower quote for the same scope with an extra 10% off.
Can you work from my architect's plans?
Yes — send us the architectural or concept plans and we'll provide the structural drawings and calculations needed for your building permit.
Ready to start your project?
Send us your plans for a fixed-price quote, or pick up the phone. We reply to every enquiry within a few business hours.
Feel free to call any time — no question is too small.