How long does custom software take to build?

Second most common question after cost, and it gets the same slippery treatment: "it depends" with no follow-through. So here is the follow-through, realistic timelines by project type, the things that genuinely cause delays (spoiler: it is rarely the coding), and what keeps a build on schedule.

Typical timelines by project type

• →Business website: 2 to 6 weeks from kickoff to live, mostly depending on content readiness
• →Web app or client portal: 6 to 12 weeks for a focused first version
• →Custom CRM or internal tool: 8 to 16 weeks depending on workflows and integrations
• →Mobile app: 10 to 20 weeks including app store review cycles
• →AI automation: 1 to 6 weeks, these are the fastest builds to ship and prove

These assume a scoped, fixed-price project with decisions made before building starts. Open-ended "we will figure it out as we go" projects do not have timelines, they have durations, discovered afterwards.

What actually causes delays

Content, not code

The most common website delay in existence: the build finishes and sits waiting for text, photos and logins. If content is ready at kickoff, weeks disappear from the schedule.

Decisions in the middle

Every "actually, could it also..." mid-build is a fork: variation, delay, or both. Good scoping upfront moves those conversations to the start, where they are cheap.

Third parties

App store reviews, bank API approvals, DNS propagation, access to accounts held by a previous developer, all things outside anyone's control that a realistic schedule includes buffer for, and an optimistic one ignores.

Feedback lag

A build that gets same-week feedback moves twice as fast as one waiting a fortnight per review round. The client's calendar is part of the timeline.

The one move that shortens every timeline

Cut the first version down to the workflow that hurts most, and ship it. A focused version one live in six weeks beats a complete system live in six months, it starts earning, and real usage tells you what version two should actually contain, which planning never does. The same principle keeps costs down too, as covered in the cost guide.

How we run timelines at Veleria

Free 30-minute scoping call, then a written scope with a fixed price and a realistic timeline including the buffers, agreed before anything is built. Progress you can see as it happens, not a reveal at the end. And a 30-day defect warranty after launch, in writing. If you want a date you can plan the business around, start with the scoping call.

Frequently asked questions