Skip to content
Project X
  • HOME
  • ABOUT US
    • Paul Davis
    • Anthony Said
    • Noelene Davis
    • Josh Walker
  • STRUCTURAL ENGINEERING
  • FORENSIC ENGINEERING
  • INDUSTRY ADVICE
  • BLOG X
    • General
    • Structural
  • GALLERY
  • CONTACT US
  • Search Icon

Project X

Structural & Civil Engineers. (Est. 1998)

Architectural Drawings – Can I do my own?

Architectural Drawings – Can I do my own?

July 6, 2021 admin

The answer is an unequivocal no! It will cost you money.  

I had a job just recently where my customer has done her own architectural drawings for a two-story extension to the existing house. It was clear to me from the drawings that the lady had only a superficial understanding of construction. There were all sorts of subtle errors and omissions and incompatibility between what she had drawn and how the building would have to be built to conform with construction norms and building code requirements.  

But the extent of her ignorance was such that she couldn’t even identify her own shortcomings as a building designer.  

I tried to change her ways, but the problem that she had spent a whole year getting the development application through the council. (No doubt part of that delay was on account of her dodgy drawings.) Having invested that time, effort and cost in going through council there was no going back on her designs. 

I had no choice but to hike my engineering design fees because of the extra time that I knew I would have to spend getting the engineering to work in the face of these poor and incomplete architectural designs. 

I padded my price out by 50%. As it turns out in retrospect I should have doubled it for the time it took! 

But the cost hikes for this poor lady didn’t stop with me. All the subcontractors understood the same problem that I identified and would have escalated their price. I was recently talking to a concreter about this problem; he bluntly called it “The stupidity tax.” 

The cost for a full set of architectural style drawings for a relatively simple new build or extension is in the order of about 1% of the construction cost. You could blow vastly more than that by doing your own shonky drawings. Having some sort of drafting skills is not enough. So, unless you really know construction DON’T DO YOUR OWN ARCHITECTURAL DRAWINGS!  Don’t pay the stupidity tax! 

Working out who should do your architectural drawings is another important question confronting you. See my separate article, ‘Who should do my architectural drawings?.’


General
architect, Architectural Drawings, building code, building designer, construction, designs, development, development applications, drawings, engineering, new house, owner builder, struructural, stupidity tax, subcontractor

Post navigation

PREVIOUS
Factors Affecting Slab and Footings Design, Construction and Cost
NEXT
Who should do my architectural drawings?
Comments are closed.

Recent Posts

  • Timber Trusses: A Forensic Perspective
  • Roof Truss Failure Alert
  • Landslip and Landslide
  • Steel vs Timber in Housing Construction. What Material Wins?
  • Waffle Pod or Conventional Slab for your New House?

Contact Us

Address
Shop 13-14,  Old Post Office Arcade
168 George St, Windsor NSW 2756
Mailing Address
PO Box 7201, Wilberforce NSW 2756
Phone
(02) 4576 1555
Mobile
0414 786 477
Email
mail@projectxsolutions.com.au

Gallery

Facebook

Project X - Structural Engineers

4 months ago

Project X - Structural Engineers
Sculptures on the M7 / M12 we designed. The tricky task was working out whether the continual buffeting from trucks would cause fatigue failures of the structures. ... See MoreSee Less

Photo

View on Facebook
· Share

Share on Facebook Share on Twitter Share on Linked In Share by Email

Project X - Structural Engineers

9 months ago

Project X - Structural Engineers
We use AI pretty much hourly for technical research that reflects the diversity of our projects. Depending on the task, we select the most suitable AI agents. Today, instead of sharing technical details, we're excited to present a river wall image we generated to help our client visualize our proposal. Our design needs to meet regulatory standards, fulfill client needs, and strict engineering requirements. Let us know what you think! ... See MoreSee Less

Photo

View on Facebook
· Share

Share on Facebook Share on Twitter Share on Linked In Share by Email

Project X - Structural Engineers

9 months ago

Project X - Structural Engineers
Fabric structures like these shade sails we designed for Leathwood for a daycare in Brisbane are one of the hardest structures you might design as an engineer. They are floppy in real life which means they are mathematically floppy as well! As well as the technical skills, Paul holds the RPEQ accreditation that lets us design and certify work in Qld, ... See MoreSee Less

Photo

View on Facebook
· Share

Share on Facebook Share on Twitter Share on Linked In Share by Email

Project X - Structural Engineers

10 months ago

Project X - Structural Engineers
Bunker, mezzanine, and a crane all in one job - this for the separation of waste mud. A particular challenge for this design was to deal with the vibrations of the centrifuges to ensure they didn't set up harmonic vibrations with the structure: ... See MoreSee Less

Photo

View on Facebook
· Share

Share on Facebook Share on Twitter Share on Linked In Share by Email

Project X - Structural Engineers

12 months ago

Project X - Structural Engineers
We design a lot of structures for Western Sydney industries - this a forklift ramp at Newlyweds Foods ... See MoreSee Less

Photo

View on Facebook
· Share

Share on Facebook Share on Twitter Share on Linked In Share by Email

© 2026   Project X Solutions Pty Ltd. Copyright. All Rights Reserved.