Home / Worldwide / Australia
NCC 2022 · AS 3600 · AS 1170

House plan software for Australia — NCC 2022, Class 1a, metric

An Australian house is a Class 1a building, so NCC 2022 Volume Two governs it, with AS 3600 for concrete, AS 1684 for residential timber framing and AS 1170 for actions. PLOTVA draws the plan in millimetres and metres, applies the NCC profile, produces elevations, sections, 3D, schedules and a costed BOQ, and writes a native AutoCAD DWG set for the certifier. Offline, from $2.

What the profile applies, and what your certifier supplies

ItemWhere it comes from
Class 1a house scope, NCC 2022 Volume Twoapplied by the profile — named on the sheet
Concrete member sizingAS 3600 basis, with reinforcement per member
Actions: permanent, imposed, wind, earthquakeAS 1170 basis, values listed
Site wind classification (N1–N4, C1–C4)not calculated — terrain, shielding and topography decide it; your engineer or certifier assigns the class
Bushfire Attack Level (BAL)not calculated — a site assessment under AS 3959
BASIX (NSW) or NatHERS energy ratingnot calculated — an accredited assessor's certificate
Setbacks, height, floor space rationot calculated — the council's DCP or LEP

That table is the point: the software is explicit about the line between what it computes and what a certifier must supply. A tool that quietly guessed a BAL rating would be worse than useless — it would be dangerous.

What it does produce

A dimensioned set

Floor plans to scale, four elevations, sections, room schedule, door and window schedule — everything a certifier or builder reads first.

3D views of the same model

Not a render made separately: the same geometry as the plan, so the elevation and the 3D view cannot disagree with the floor plan.

A costed BOQ

Concrete, formwork, reinforcement, framing, cladding areas, finishes and openings, taken off the drawing and priced per item in AUD-adjacent terms — the estimator sets the rates in the currency of their choosing.

Native DWG

30 AIA layers, real millimetre units, blocks and dimensions, plus DXF AC1032 — opens in AutoCAD, BricsCAD, ZWCAD and DraftSight.

Questions people ask before buying

Which code does a house in Australia follow?

The National Construction Code 2022. A house is a Class 1a building, so Volume Two governs it, with AS 3600 for concrete, AS 1684 for residential timber framing and AS 1170 for actions.

Does it work out the wind classification?

No. The site wind classification — AS 4055 classes N1 to N4 and C1 to C4 — depends on terrain, shielding and topography, and your certifier or engineer assigns it. The software does the plan, the geometry and the quantities; the wind class is an input, not a guess it should make.

Is BASIX or NatHERS covered?

No. Those are separate energy assessments, done by an accredited assessor. The software produces the architectural and structural set, not the energy certificate.

What units does it use in Australia?

Metric: millimetres and metres, with square metres for areas and both square metres and square feet printed on the sheet.

Contact the owner

Tell me the plot — I will tell you what it costs

Send the plot size, the country and the rooms you want. You get a straight answer with the plan that fits, usually the same day. The button opens a ready-written e-mail — just add your details and send.

No phone number and no e-mail address is printed on this page — the contact button opens Gmail with the address already filled in, so it cannot be scraped.