The verdict in three sentences
For a trade association with 1,200 member companies, a serious website costs EUR 30,000 to 75,000 excluding VAT in 2026 (about GBP 26,000 to 65,000), before the members' area. A members' area connected to the membership system adds EUR 10,000 to 25,000, and it is what creates the perceived value of the subscription. Between two close quotes, the deciding factor is the quality of the integration with the membership CRM and accessibility compliance (WCAG 2.2 AA), not the homepage design.
What a complete quote contains
A trade association quote blends three blocks: the public site (mission, news, policy positions, press), the regulatory watch and the restricted area. Here is a typical 2026 breakdown for a 40 to 60 page site.
| Item | Range excl. VAT | Comment |
|---|---|---|
| Discovery, workshops, sitemap | EUR 3,000 to 6,000 | 3 to 5 workshops with board and staff |
| UX/UI design and web style guide | EUR 6,000 to 14,000 | Desktop and mobile mock-ups, 8 to 12 templates |
| CMS development and front-end | EUR 12,000 to 30,000 | Drupal, WordPress or headless CMS |
| Regulatory watch module | EUR 4,000 to 10,000 | Briefs, topic filters, e-mail alerts |
| Accessibility audit and fixes | EUR 3,000 to 8,000 | Audit, fixes, accessibility statement |
| Content migration | EUR 2,000 to 7,000 | 300 to 800 documents to migrate |
| Public site total | EUR 30,000 to 75,000 | 4 to 6 months |
| Connected members' area | +EUR 10,000 to 25,000 | SSO, directory, restricted documents |
UK or EU hosting with backups, monitoring and corrective maintenance costs EUR 150 to 400 a month depending on the service level.
Three real quotes compared
The association consulted three suppliers on the same brief. Rounded amounts, 2026 orders of magnitude.
| Criterion | Agency A (central London) | Agency B (regional UK) | Agency C (studio + nearshore) |
|---|---|---|---|
| Public site | EUR 68,000 | EUR 46,000 | EUR 34,000 |
| Members' area | EUR 22,000 | EUR 15,000 | EUR 12,000 |
| Proposed CMS | Drupal 11 | WordPress + plugins | Headless (Sanity + Next.js) |
| Membership connector | Custom API | Existing plugin to adapt | Custom API |
| Accessibility | External audit included | Self-assessment | Internal audit + report |
| Monthly hosting | EUR 380 | EUR 190 | EUR 220 |
| Announced timeline | 6 months | 5 months | 4 months |
| 3-year total cost | EUR 103,680 | EUR 67,840 | EUR 53,920 |
The gap of almost EUR 50,000 over three years has little to do with design: it comes from day rates (EUR 750 in central London versus EUR 450 to 550 nearshore) and the depth of the accessibility audit.
The criteria that make the difference
- The membership connector: if your system (Salesforce, Novi, MemberPress, a bespoke CRM) exposes an API, ask for a live demo of membership status syncing.
- The regulatory watch: ask how many clicks a staff member needs to publish a brief with an attachment and an alert. Beyond 6, the tool will not be used.
- Reversibility: check that content and code belong to you and can be exported.
- Accessibility: an association that sits on public consultations should be able to publish an accessibility statement.
Mini case study
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Isabelle, chief executive of a 1,200-member trade association, collects an average subscription of EUR 1,450 per company. The non-renewal rate is 7 %, so 84 members lost a year and EUR 121,800 in subscriptions. Exit surveys cite a lack of visible services. Isabelle picks quote C (EUR 46,000 including the members' area) with one goal: bring non-renewal down to 5 % thanks to the members-only regulatory watch and directory. Expected gain: 24 members retained, EUR 34,800 a year. The project pays back in under 16 months, before counting new members generated by the site.
FAQ
Do we need a formal tender?
A private trade association is not bound by public procurement rules unless mostly publicly funded. A consultation of 3 suppliers with a scoring grid is enough, over 6 to 8 weeks.
How long until launch?
Budget 4 to 6 months, including 6 to 8 weeks of content migration and approval. The board and annual general meeting calendar often sets the launch date.
Can the members' area be added after launch?
Yes, but plan authentication from the start. Adding SSO later costs on average 20 to 30 % more than in the initial phase.
What annual budget after launch?
Between EUR 4,000 and 12,000 a year for hosting, maintenance and 2 to 5 days of improvements. Add an accessibility re-audit every 3 years, around EUR 3,000.
Is a headless CMS right for an association?
Yes if the team publishes a lot and wants fast pages. It avoids plugin updates but needs a supplier able to maintain the front end, for a cost close to a well-maintained WordPress.
Let's scope your project. Send us your brief or current sitemap, and we will price the public site and members' area between EUR 30,000 and 75,000 with a 4 to 6 month schedule. 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.
