How long does a custom
website actually take?

Published August 31, 2026 · AVEN Team

The short answer

For a genuinely custom marketing or brand site, four to eight weeks from kickoff to launch is a realistic range. E-commerce and web applications typically run longer — often eight to sixteen weeks or more — because there's more functionality to design, build, and test. The bigger factor isn't usually the build itself; it's how quickly decisions and content come back from the client side.

A realistic stage-by-stage breakdown

• Discovery (roughly 3–7 days). Understanding the business, the audience, competitors, and the actual goals of the site before any design work starts. Rushing this stage is the single most common cause of a project needing rework later.
• Design (roughly 1–3 weeks). Building the visual system — layout logic, typography, color, and how the brand translates to screen — specifically for this business, not adapted from an existing template.
• Build (roughly 1–4 weeks). Turning the approved design into working code: responsive layout, interactions, performance tuning, and — for e-commerce or app projects — the actual functionality itself.
• QA and launch (roughly 3–7 days). Cross-browser and cross-device testing, content review, and a controlled launch — plus analytics and any handoff documentation.

What actually makes projects run long

It's rarely the build itself. The most common causes of delay are external to the actual design and development work:

• Content not being ready. Final copy, photography, and product data arriving late is the single most common source of delay on any web project.
• Slow or unclear feedback. A design review that takes two weeks instead of two days adds two weeks to the timeline — the work isn't happening faster on the studio's side while waiting.
• Scope changing mid-project. Adding a feature or a page type partway through almost always pushes the date, even when the addition seems small.
• Too many decision-makers. Feedback from multiple stakeholders that contradicts itself round after round slows every stage it touches.

How to keep a project on schedule

The single highest-leverage thing a client can do is have content ready — or at least drafted — before the build stage starts, and to designate one person who can give final sign-off at each stage. Projects with both of those in place almost always land close to the original timeline. Projects without them rarely do, regardless of how experienced the studio is.