The verdict in three sentences
A costed requirements spec (RFP) is not paperwork: it is the tool that aligns agency and client on the same scope and makes quotes comparable. Without a spec, two agencies will answer EUR 6,000 and EUR 18,000 without you knowing why. A good 2026 spec fits on 6 to 10 pages: objectives, sitemap, sections, integrations, SEO, budget per line, and acceptance criteria.
Structure of a B2B brochure spec
| Spec section | What it contains | Why it's critical |
|---|---|---|
| Context & objectives | Quantified KPIs (leads/month) | Aligns success |
| Sitemap | Page list + depth | Frames volume |
| Content | Who writes what, by when | #1 cause of delay |
| Design | References, brand, responsive | Avoids back-and-forth |
| Integrations | CRM, forms, analytics | Precise pricing |
| SEO | Target keywords, structure | Future traffic |
| QA & warranty | Acceptance criteria | Protects the client |
A spec that fails to cost content and integrations leaves two holes through which every overrun rushes in.
Budget per section 2026 (brochure site 8-12 pages)
| Line item | Detail | Price EUR |
|---|---|---|
| Discovery & sitemap | Workshops, wireframes | 1,200 - 2,000 |
| UI design | 4-6 screen mockups | 2,500 - 4,000 |
| Front-end build | Next.js, responsive | 3,000 - 5,000 |
| CMS & layout | 8-12 pages | 1,500 - 2,500 |
| SEO copywriting | 8-12 expert pages | 1,600 - 3,200 |
| Form + CRM | HubSpot/email connection | 600 - 1,500 |
| QA & go-live | Tests, perf, GDPR | 800 - 1,400 |
| Indicative total | 11,200 - 19,600 |
This breakdown enables trade-offs: cutting pages or writing content in-house predictably lowers the quote.
The integrations that must appear in the spec
| Integration | Complexity | Extra cost EUR |
|---|---|---|
| Form to email | Low | included - 300 |
| CRM connection (HubSpot) | Medium | 600 - 1,500 |
| Booking (Calendly) | Low | 200 - 500 |
| Chat / WhatsApp | Low | 150 - 400 |
| Analytics + GDPR consent | Medium | 400 - 900 |
| Bilingual EN/NL | High | +25 to +40 % |
Leaving an integration out of the spec means discovering it mid-project at a premium and off-schedule. List them all, even the obvious ones.
Mini case study
Nadia, communications lead at an industrial supplier in Amsterdam (60 staff), prepares a spec before consulting three agencies. She defines 10 pages, a form connected to HubSpot, a booking tool, and a target of 25 leads/month. Her target budget: EUR 15,000.
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Thanks to the costed spec, the three quotes received land in a EUR 13,800 to 16,500 range — comparable and legible. Without a spec, the first round had produced EUR 9,000, 14,000, and 27,000, impossible to compare. The spec saved her roughly two weeks of negotiation and avoided a blind choice that could have cost EUR 12,000 too much.
FAQ
Is a requirements spec really essential for a simple brochure site?
Yes: without a spec, quotes range from EUR 6,000 to 27,000 for a seemingly identical scope. The spec makes offers comparable and halves the risk of overrun.
How long does it take to write a spec?
Expect 1 to 3 days of work for an SME, or a paid scoping workshop of EUR 800 to 1,500 with an agency. Most serious providers deduct this investment from the final quote.
What should the spec contain at minimum?
Quantified objectives, sitemap, content responsibility, listed integrations, SEO keywords, and acceptance criteria. The two lines never to forget are content and integrations.
How does the spec influence the final price?
It stabilises it: a brochure budget of 8-12 pages holds between EUR 11,200 and 19,600. Cutting pages or writing in-house lowers the quote predictably and transparently.
Who should write the content, client or agency?
The spec must decide this explicitly. Outsourcing writing to the agency adds EUR 1,600 to 3,200 but avoids the #1 project delay: client content that never arrives.
Let's scope your project. Send us your spec, even a draft, or your raw objectives: we structure and cost it section by section. 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.
