How Long Does It Take to Build a Website or App in Australia?

A brochure site can launch in two weeks. A custom app can take six months. Here's a realistic breakdown of development timelines and what actually causes delays.

“How long will it take?” is right up there with “how much will it cost?” as the first question every client asks. The honest answer depends heavily on scope — but most Australian businesses have never built a website or app before and have no reference point. This guide gives realistic 2026 timelines, and more importantly, explains what actually causes projects to run long.

Typical timelines by project type

• Simple brochure website (5–8 pages): 2–4 weeks
• Custom-designed business website with content strategy: 4–8 weeks
• Ecommerce store: 6–12 weeks
• Simple mobile app (MVP, one core feature): 8–14 weeks
• Full-featured mobile app (iOS and Android): 3–6 months
• Marketplace platform or complex web application: 4–9 months

These are build timelines once a project actually starts — they assume you've already chosen who's building it. The gap between “deciding to get a website” and “website goes live” is usually much longer once you factor in the steps below.

What actually causes delays

1. Content isn't ready

This is, by a wide margin, the biggest cause of delay. Developers can build a site in weeks, but if you don't have your copy, photos, logo files and product data ready, the project stalls waiting on you — not the build.

2. Feedback and approval rounds drag on

Every round of “can we change this” adds days. Projects move fastest when one person has final sign-off authority, rather than feedback being gathered from five stakeholders across separate email threads.

3. Scope grows mid-project

“While we're at it, can we also add…” is how a four-week website becomes a ten-week website. Adding features mid-build is fine, but it should reset the timeline honestly rather than being squeezed into the original estimate.

4. App store review adds time (apps only)

For mobile apps, budget an extra 1–2 weeks at the end for Apple App Store and Google Play review, which is outside a developer's control and can involve a rejection-and-resubmission cycle.

How to keep your project on schedule

1. 1Gather your content — copy, images, logos, product data — before the build starts, not during it.
2. 2Nominate one decision-maker who gives final approval at each stage.
3. 3Agree on scope in writing upfront, and treat additions as a separate, timed decision.
4. 4Ask your developer for a week-by-week timeline, not just a total, so delays are visible early.
5. 5For apps, budget extra time for app store review — don't promise a launch date that depends on Apple's approval queue.

At AusWebDevs we give every client a realistic, itemised timeline before work starts — and we tell you honestly if something (usually missing content) is putting it at risk, rather than letting a deadline quietly slip. Get in touch and we'll give you a timeline specific to your project.