The verdict in three sentences
A trilingual institutional website for an NGO in Brussels launches in 10 to 16 weeks, and rarely under 8 weeks even with a fast team. The main source of delay is not technical: about 30 % of the timeline goes into gathering and approving content across leadership, programmes and sometimes the international board. A backward plan built from the donor conference date, with time-boxed approvals, is the only reliable way to hit the deadline.
Phases and their real duration
The durations below are 2026 estimates for a 20 to 35 page site in French, Dutch and English, built by a Brussels or Benelux agency.
| Phase | Estimated duration | Main owner | Slippage risk |
|---|---|---|---|
| Scoping and sitemap | 1 to 2 weeks | NGO + agency | Low |
| Content and photo collection | 2 to 4 weeks | NGO | High |
| Mock-ups and design approval | 2 to 3 weeks | Agency then leadership | Medium |
| Development and integration | 3 to 4 weeks | Agency | Low |
| Translation and proofreading (NL, EN) | 1 to 2 weeks | Translators + NGO | Medium |
| Final content approval | 1 to 2 weeks | Leadership, board, donors | High |
| Testing, fixes, launch | 1 week | Agency + NGO | Low |
| Total | 10 to 16 weeks |
Both high-risk phases depend on the NGO. When an international board must sign off, add 1 to 2 weeks per round trip.
2026 budget in euros
The amounts are 2026 orders of magnitude observed in Brussels. They vary by provider and by how much content the NGO supplies.
| Item | Estimated range | Note |
|---|---|---|
| Trilingual site, 20 to 35 pages | 15,000 - 28,000 EUR | Custom design, CMS |
| Content writing and formatting | 2,000 - 5,000 EUR | If the NGO does not write |
| Translation into NL and EN | 2,500 - 6,000 EUR | Depends on word count |
| Online donation module (option) | 3,000 - 7,000 EUR | Card, Bancontact, SEPA |
| Financial transparency section | 1,500 - 3,500 EUR | Annual accounts, funding sources |
| Annual hosting and maintenance | 1,500 - 4,000 EUR | Backups, security |
| Project total | 15,000 - 40,000 EUR | Excluding maintenance after year 1 |
The donation module is the option that extends the timeline most: allow 2 to 3 extra weeks for payment account setup and testing.
The backward plan that meets the deadline
Start from the conference date and work backwards, with time-boxed approvals: if leadership does not reply within 5 working days, the proposed version is treated as approved.
| Weeks before conference | Milestone | Expected deliverable |
|---|---|---|
| W-16 | Kick-off | Approved sitemap, content list |
| W-13 | French content received | 100 % of copy and photos |
| W-11 | Mock-ups approved | Home + 2 page templates |
| W-7 | Site built in French | Staging version |
| W-5 | Dutch and English integrated | Complete trilingual site |
| W-3 | Final approval | Leadership and board sign-off |
| W-1 | Launch | Public site, forms tested |
One week of buffer before the conference is not a luxury: it absorbs feedback from first visitors and last-minute fixes.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Mini case study
Laure, communications officer at a 25-person environmental NGO in Brussels, learns that a donor conference is 12 weeks away. The standard 14-week plan does not fit. She drops the donation module (saving 2 weeks and 5,000 EUR), imposes 5-day approvals and reuses content from annual reports (saving 1 week). New timeline: 11 weeks, budget 24,000 EUR instead of 29,000 EUR. The donation module goes live 6 weeks after the conference, once donor contacts have been qualified.
FAQ
Can an NGO site launch in under 8 weeks?
It is possible for 10 to 15 pages with ready content and a single language. For a trilingual 20 to 35 page site, going under 8 weeks almost always hurts quality or approval.
Why does approval take 30 % of the timeline?
Because several levels are involved: leadership, programme managers, the board and sometimes donors. Each round trip costs 3 to 7 days if no limit is set.
Is online giving essential at launch?
No, it can be added 4 to 8 weeks after launch. It costs 3,000 to 7,000 EUR and adds 2 to 3 weeks to the timeline.
What should the financial transparency section include?
At minimum the latest annual accounts, the share of funding by source and the cost ratio between programmes and overheads. Belgian donors and institutional funders increasingly expect this, and it takes 1,500 to 3,500 EUR to build properly.
Who should lead the project on the NGO side?
One person with decision-making power, available 4 to 6 hours a week. Without a single owner, the timeline stretches by 3 to 4 weeks on average.
Let's scope your project. For institutional websites we work on a custom quote: give us your deadline, your languages and your content volume, and we will propose a backward plan and an approval method. 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.
