The verdict in three sentences
A corporate website of 15 to 40 pages takes 10 to 16 weeks in 2026, with a typical 12-week plan when decisions are fast. The main risk is not technical: 70% of delays come from client content (copy, photos, legal sign-off). To hit a fixed date (trade show, funding round, rebrand), you need a backward schedule from week one and a budget for acceleration options.
The four phases and their real duration
A web project splits into four main phases. Their length depends less on site size than on the availability of decision makers on the client side: a sign-off committee that meets every two weeks can add a month to the calendar.
| Phase | 2026 duration | Deliverables | Most frequent blocker |
|---|---|---|---|
| Scoping | 1 to 2 weeks | Approved brief, sitemap, backward schedule | Scope decisions |
| UX/UI | 2 to 4 weeks | Wireframes, desktop and mobile mockups | Approval back-and-forth |
| Development | 4 to 8 weeks | Working site on staging, CMS | Late scope changes |
| Content and QA | 2 to 3 weeks | Integrated copy, tests, fixes | Copy and photos not delivered |
| Go-live | 2 to 5 days | DNS switch, redirects, SEO monitoring | Technical access (DNS, host) |
| Post-launch warranty | 4 weeks | Fixes, editor training | Rarely blocking |
Typical 12-week plan
This is the calendar we use for a 25-page bilingual corporate site with a headless CMS. It assumes a weekly sign-off meeting and a single client contact with authority to decide.
| Week | Main activity | Client sign-off expected |
|---|---|---|
| W1 | Scoping workshop, audit of current site | Goals, audiences, page list |
| W2 | Sitemap, key wireframes, content plan | Signed sitemap, writers assigned |
| W3 to W4 | Desktop and mobile UI mockups | Home mockup, then page templates |
| W5 to W8 | Front-end build, CMS, forms | Weekly demo on staging |
| W7 to W9 | Copywriting and content delivery in parallel | 100% of copy delivered by W9 at the latest |
| W10 | Content integration, technical SEO | Review of integrated pages |
| W11 | Functional QA, accessibility, performance | QA sign-off |
| W12 | Go-live, redirects, training | Go-live approval |
The critical point is week 9: if copy is not delivered by then, QA slips by the same amount. Starting copywriting in week 2, in parallel with mockups, is the single decision that saves the most time.
Priced acceleration options
When the date is fixed, several levers can save 2 to 5 weeks. They have a cost, which is best known before signing.
| Lever | Weeks saved | Indicative 2026 premium |
|---|---|---|
| Professional copywriter for content | 2 to 3 | EUR 2,500 to 6,000 (USD 2,700 to 6,500) |
| Design from an existing design system | 1 to 2 | Saves 10 to 20% on UX/UI |
| Larger dev team (2 devs instead of 1) | 1 to 3 | +15 to 25% on development |
| Two-step launch (10-page V1, then V2) | 3 to 5 | Neutral to +5% |
| Sign-off committee cut to 2 people | 1 to 2 | None |
| Stock images instead of a photo shoot | 1 to 2 | EUR 300 to 1,200 |
The two-step launch is often the best compromise: a solid V1 for the trade show, then the rest of the site three to six weeks later, at no meaningful extra cost.
Mini case study
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Sophie, head of communications at a mid-sized industrial company in Lyon, must unveil the new site at the Global Industrie trade show in 9 weeks. The standard plan needs 12. She picks three levers: a professional copywriter (EUR 4,000, 2 weeks saved), a 12-page V1 instead of 28 (2 weeks saved) and a committee reduced to herself and the CEO.
Result: the V1 goes live in week 8, one week ahead of the show. The EUR 4,000 premium is 9% of a EUR 45,000 budget, while a trade show stand without an up-to-date site would have wasted part of the 300 qualified leads expected.
FAQ
Can a corporate website be built in under 6 weeks?
Yes for a 5 to 10-page V1 with ready content and an existing design system. Beyond 15 pages, going under 8 weeks exposes you to QA defects.
Why does content cause 70% of delays?
Copywriting relies on busy subject matter experts and often goes through legal review. A corporate page takes 3 to 5 hours of client-side work on average.
How long does QA take?
Allow 1 to 2 weeks for 20 to 40 pages, tested on 6 to 8 browsers and devices. Rushed QA generates 2 to 3 times more fixes after launch on average.
Should the schedule include a buffer?
Yes, a 15 to 20% buffer is reasonable, about 2 weeks on a 12-week plan. It absorbs holidays, late approvals and technical surprises.
Does SEO migration extend the timeline?
The redirect plan adds 2 to 4 days for a site under 200 URLs. Skipping it can cost 20 to 50% of organic traffic for several months.
Let's scope your project. Give us your deadline and target page count and we will build a week-by-week backward schedule, with an indicative budget and the right acceleration options. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
