The overlay's approval process is the hard part, not the lift
Character-protected applications get closer scrutiny than an unconstrained site, and the overlay is chiefly concerned with what the street sees.
A design that doesn't satisfy Council's assessment of streetscape and traditional form derails the project, no matter how sound the engineering is.
We establish your overlay status first, then write the Development Application to address the overlay's assessment criteria directly, rather than lodging it as a generic structural application.