The verdict in three sentences
Redesigning the website of a publicly funded trade association in Amsterdam costs 40,000 to 110,000 EUR excl. VAT in 2026, and almost always requires a competitive procurement procedure. A realistic timeline is 6 to 9 months from drafting the specification to going live, including 2 to 3 months of tendering. The two risks that blow the budget are WCAG 2.1 AA compliance handled too late and the migration of a 12,000-member directory.
The procurement framework in 2026
When a trade body, chamber or sector organisation is a contracting authority or mostly publicly funded, the redesign falls under the Dutch Aanbestedingswet and the Gids Proportionaliteit. The estimated contract value, calculated over the full term (build plus maintenance), sets the procedure.
| Estimated contract value (EUR excl. VAT) | Commonly applied procedure | Typical procedure time |
|---|---|---|
| Below about 50,000 | Single-quote award (enkelvoudig onderhands) | 3 to 6 weeks |
| 50,000 to about 100,000 | Multiple quotes, 3 to 5 suppliers (meervoudig onderhands) | 6 to 10 weeks |
| About 100,000 to EU threshold | National open procedure via TenderNed | 8 to 12 weeks |
| Above EU threshold (about 140,000 to 220,000 depending on authority) | European tender, TED publication | 3 to 5 months |
| 4-year framework agreement | Based on cumulative maximum value | Variable |
The classic trap is to exclude maintenance to stay under a threshold. Artificial splitting is not allowed. If the build costs 45,000 EUR and maintenance 8,000 EUR a year over 3 years, the real value is 69,000 EUR, which calls for a multiple-quote procedure.
Where the budget goes in an association redesign
| Item | 2026 range (EUR excl. VAT) | Comment |
|---|---|---|
| Audit, user workshops, information architecture | 5,000 to 11,000 | Members, apprentices, founders, board |
| Accessible UI design and design system | 7,000 to 16,000 | Contrast, focus states, WCAG templates |
| CMS development and templates | 15,000 to 38,000 | News, training, events, member services |
| 12,000-member directory migration | 5,000 to 14,000 | Clean-up, geocoding, KvK registry links |
| Training catalogue and online registration | 5,000 to 14,000 | Connection to management software |
| WCAG 2.1 AA audit and fixes | 4,000 to 10,000 | Accessibility statement required |
| Content migration and redirects | 2,500 to 6,000 | 1,500 to 3,000 pages typical |
A lean project without online registration stays around 40,000 to 60,000 EUR excl. VAT. With an enriched directory, connected training catalogue and member area, the budget climbs to 85,000 to 110,000 EUR excl. VAT.
Accessibility and the directory: two workstreams to frame in the specification
The Dutch Digitoegankelijk framework imposes WCAG 2.1 AA on public-sector websites, with an accessibility statement registered on the national register and a status from A (fully compliant) to E. An audit at the end of the project costs about twice as much as a design built accessible from day one, because templates and components must be reworked.
The 12,000-member directory raises three questions: data quality (outdated addresses, duplicates, roughly 10 to 15% of records to fix), the GDPR legal basis for publishing, and updates (periodic import from the member CRM or self-service editing). Require in the specification a costed migration plan with a target automatic migration rate and a volume of records handled manually.
Mini case study
Sanne, head of communications at a publicly funded trade association in Amsterdam, estimates the redesign at 72,000 EUR excl. VAT for the build and 9,000 EUR a year for maintenance over 3 years, a total value of 99,000 EUR. She runs a multiple-quote procedure with 5 invited suppliers.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
By building accessibility into the design (6,000 EUR) rather than a late corrective audit (estimated at 13,000 EUR), she saves about 7,000 EUR. By requiring 85% automatic migration of the directory, 1,800 records remain for manual handling, about 90 hours of staff time at 3 minutes per record, which can be scheduled before acceptance testing.
FAQ
Can the redesign be awarded without competition?
Usually yes below about 50,000 EUR excl. VAT, maintenance included, depending on the authority's procurement policy. You still need to justify value for money, which is why three quotes are common practice.
How long does a tender for a website take?
Allow 6 to 12 weeks from invitation to award. With design and development, go-live comes 6 to 9 months after launching the procedure.
Is WCAG 2.1 AA really mandatory?
Yes for public-sector bodies under Digitoegankelijk, with a published accessibility statement. The initial audit costs 4,000 to 10,000 EUR excl. VAT depending on sample size.
How do we migrate a 12,000-member directory?
Through automated import from the member CRM, with clean-up and geocoding. Budget 5,000 to 14,000 EUR excl. VAT and expect 10 to 15% of records to need manual work.
Should price dominate the award criteria?
No, a 40% price and 60% quality weighting is common for this kind of service. It avoids picking a low bid that underestimates accessibility or migration.
Let's scope your project. Send us your specification or early direction and we will help you estimate contract value, indicative budget and procurement timeline. 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.
