The verdict in three sentences
A well-run 25-page B2B website in Berlin takes 12 weeks: 2 weeks of discovery, 3 of design, 4 of development, 2 of QA and 1 for launch. The biggest source of slippage is on the client side: late copy, product data and photos account for roughly 30% of schedule overruns by our 2026 estimate. If your Messe Berlin trade fair comes first, an 8-week fast track is feasible for about 20% more, provided sign-offs happen within 48 hours.
The 12-week plan, week by week
A Head of Marketing working back from a trade fair date needs a dated plan, not "a couple of months". Here is the sequence we recommend for 25 pages (home, 6 solution pages, 8 industry or application pages, 4 case studies, blog, about, careers, contact, plus the legally required Impressum and privacy notice).
| Week | Phase | Expected deliverable | Client decision |
|---|---|---|---|
| W1 to W2 | Discovery | Sitemap, goals, content inventory | Approve the 25 pages and content owners |
| W3 to W5 | Design | Homepage, then solution, industry and case study templates | One approval path, 2 revision rounds max |
| W4 to W6 | Content (in parallel) | German and English copy, photos, datasheets | 100% of content delivered by end of W6 |
| W6 to W9 | Development | Full site on staging | 30-minute weekly check-in |
| W10 to W11 | QA | Mobile tests, forms, speed, technical SEO, consent banner | One single, prioritized fix list |
| W12 | Launch | Domain switch, redirects, monitoring | Go-ahead from the managing director 48 h before |
Running content in parallel with design is the real lever. If copywriting only starts once designs are approved, you lose 3 weeks without noticing. In Germany, a bilingual site doubles the copy workload, so plan translation review inside W4 to W6.
Why 25-page projects slip
Delays are predictable, which means they can be written into the contract and the plan.
| Cause of delay | Estimated share of overruns (2026 estimate) | Typical delay | Countermeasure |
|---|---|---|---|
| Late client content | 30% | 2 to 4 weeks | Contractual deadline, or outsource copywriting |
| Multi-level sign-off (MD, sales, engineering, works council for careers pages) | 20% | 1 to 3 weeks | One named decision maker at kickoff |
| Pages added mid-project | 15% | 1 to 2 weeks | Phase 2 after the fair |
| Missing product or plant photography | 15% | 1 to 3 weeks | Photo shoot booked in W3 |
| Technical access (domain, DNS, CRM) | 10% | 3 to 10 days | Access checklist handed over in W1 |
| Agency-side delays | 10% | 1 to 2 weeks | Payment milestones tied to deliverables |
For a Berlin SME, a 25-page bilingual B2B site typically costs 18,000 to 40,000 EUR net (2026 market ballpark), depending on copywriting, number of templates and CRM integration. Budget legal review of the privacy notice and consent setup under the GDPR separately if your in-house counsel does not cover it.
Fast-tracking to 8 weeks: what changes
The fast track removes no phase: it overlaps them and staffs two developers instead of one. Above all, it requires 48-hour decisions on your side.
| Criterion | Standard plan | Fast track |
|---|---|---|
| Total duration | 12 weeks | 8 weeks |
| Indicative surcharge | Baseline | About +20% |
| Example on a 26,000 EUR net budget | 26,000 EUR | 31,200 EUR |
| Client sign-off window | 5 working days | 48 hours |
| Design revision rounds | 2 | 1 |
| Pages live at launch | 25 | 18 to 25, rest in phase 2 |
| Main risk | Late content | Team fatigue, compressed QA |
A cheaper alternative often works better: ship 15 priority pages before the fair (home, solutions, contact, 3 case studies) and publish the other 10 within a month.
Kolonell's prices, if you consider a nearshore team: the Growth package at 1,830 to 3,050 EUR (8 to 12 pages, built-in blog, 14 to 21 working days), plus 13 extra pages at 40 EUR each, so roughly 2,350 to 3,570 EUR for 25 pages. Each additional language is 110 EUR, copywriting 90 EUR per page. The exact timeline for 25 pages is confirmed in the quote once content is inventoried.
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Mini case study
Illustrative example: Lena is Head of Marketing at a Berlin rail technology SME (60 staff). The company exhibits at a Messe Berlin trade fair in 14 weeks and wants the new bilingual site live for it.
- On a 12-week standard plan, she has only 2 weeks of buffer, and the engineering team will not deliver datasheets before W7: one week of slippage is likely.
- She outsources copy for 10 pages to the agency for 4,000 EUR net and keeps the standard plan, instead of paying 5,200 EUR for the fast track (+20% on 26,000 EUR).
- At stake: the last fair produced 80 qualified contacts and 5 contracts averaging 40,000 EUR. Converting just one more contract pays for the extra copywriting ten times over.
FAQ
How long does a 25-page B2B website take in Berlin?
Twelve weeks for a standard project, anywhere from 8 to 16 weeks depending on client responsiveness and how much content must be produced. CRM or ERP integrations can add 2 to 3 weeks.
Can we shorten the timeline without paying more?
Yes, by cutting scope: launching 15 priority pages and moving 10 to a second phase usually saves 3 to 4 weeks. Delivering 100% of content by the end of week 6 is the other free lever.
How much does a fast track cost?
Expect about 20% more, so 5,200 EUR on a 26,000 EUR project, to go from 12 to 8 weeks. The surcharge pays for a second developer and daily approvals.
Does a bilingual German and English site take longer?
Usually 1 to 2 extra weeks, mostly for translation and review of 25 pages in each language. Running translation in parallel with design keeps the overall plan at 12 weeks.
When should we start to be ready for a trade fair?
At least 16 weeks before opening day: 12 weeks of project time plus 4 weeks of buffer for surprises and stand materials that reuse the new site's visuals.
Let's scope your project. Share your trade fair date, page list and the state of your content, and we will send back a dated plan and budget, standard or fast-tracked. 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.
