Home Extension Draftsman Sydney | Extension Plans

An extension changes how the whole house works, not just the new rooms, so the drawings need to hold up under scrutiny from your certifier and your builder alike.

Working with True Blue Drafting gets you this.

Does my home extension need a DA or will a CDC cover it?
A lot of that comes down to footprint, height and how close the addition sits to your side or rear boundary. A single storey rear addition in Castle Hill can sometimes go through as Complying Development, skipping a full Development Application, but a second storey or anything pushing close to a boundary generally lands with your council for assessment. Our first job on any new brief is working out which of those two roads you are actually on.

What paperwork actually comes with a home extension drafting plans package?
Expect a site plan, floor plans, elevations, sections and construction notes, along with whatever your certifier needs to sign off the job. Structural changes such as removing a load-bearing wall or adding a floor above go to an engineer as part of the same package, so a smaller job in Chatswood is documented to the identical standard as a bigger second storey build out in the Hills.

Our block in the Inner West is narrow, can you still design an extension for it?
Narrow lots come up constantly, and terraces around Marrickville are a good example of where party walls and tight side setbacks dictate the footprint before you even get to layout. We start with an accurate survey of what the site can hold rather than sketching a floor plan first and hoping council agrees with it later.

Will BASIX come into my extension, and do you handle that?
If the extension adds living area or touches glazing and hot water systems, BASIX requirements usually apply, and we build that into the documentation rather than treating it as a separate add-on. A renovation in Ryde adding a bedroom wing, for instance, needs those figures worked out before Construction Certificate stage, not scrambled together afterward.

How long before my extension plans are ready to submit?
That depends on the scope, how fast a current survey or site information reaches us, and how many rounds of changes the design goes through. Once we have seen the site in Penrith or wherever your property sits, we give you a realistic timeframe rather than a marketing figure, though council or certifier assessment afterward is out of our hands entirely.

Can you guarantee my extension gets approved?
No, and any drafting service claiming otherwise is not being straight with you. What a project in Parramatta gets from us is a submission that is accurate, complete and pre-empts the questions an assessor typically raises, which is the strongest position we can put you in. We would rather tell you upfront where a design might struggle than let you find out at lodgement, because a redesign after a knockback costs you more time than an honest conversation at the start.

I already have a builder lined up, can you still draft the plans?
Definitely. A good number of jobs in Baulkham Hills come to us with the builder already chosen, and we draft to a standard that builder can price and construct straight from. If you would rather shop the drawings around to a few builders for quotes first, that works just as well, since a complete set of dimensioned drawings is what any builder needs to give you a number worth comparing.

What areas of Sydney do you draft home extension plans for?
Our regular work runs through the Northern Beaches, North Shore, Eastern Suburbs, Parramatta, Sutherland Shire and out toward Blacktown and Hornsby. As a home extension draftsman Sydney owners keep coming back to, we treat these council differences as part of the job, since a set that satisfies one authority will not automatically pass with the next one over.