The verdict in three sentences
In London in 2026, a premium B2B website runs 8,000 to 18,000 GBP for a polished template build and 15,000 to 45,000 GBP for a custom Next.js build with a design system. The gap is not about prettier mockups but about maintainability, CRM integration and SEO performance over three years. A marketing director targeting enterprise tenders should reason in total cost of ownership, not purchase price.
What you actually pay: the 2026 breakdown
A credible quote breaks down into person-days multiplied by day rates. Here are London 2026 benchmarks for a 12-to-20-page premium website.
| Line item | 2026 day rate (GBP) | Typical effort | Subtotal (GBP) |
|---|---|---|---|
| Scoping & UX research | 600-900 | 3-5 d | 1,800-4,500 |
| UI design + design system | 600-900 | 6-10 d | 3,600-9,000 |
| Next.js front-end build | 600-850 | 15-25 d | 9,000-21,250 |
| CMS + CRM integration | 600-850 | 4-8 d | 2,400-6,800 |
| Technical SEO + QA | 550-800 | 3-5 d | 1,650-4,000 |
| Project management | 600-850 | 4-6 d | 2,400-5,100 |
The total puts a serious project between 20,000 and 50,000 GBP, before VAT. A template build cuts development effort but caps animation, A/B testing and deep integrations.
Template vs custom Next.js
| Criterion | Premium template | Custom Next.js |
|---|---|---|
| Build budget (GBP) | 8,000-18,000 | 15,000-45,000 |
| Timeline | 6-10 weeks | 8-14 weeks |
| Hosting/month | 40-90 GBP | 40-150 GBP (Vercel) |
| HubSpot/Pipedrive integration | Standard | Custom, webhooks |
| Performance (LCP) | Acceptable | Tunable < 1.5 s |
| Cost of change | Moderate | Low to moderate |
For a 30-to-150-employee industrial SME bidding on tenders, custom pays off as soon as the site becomes a measured acquisition channel (qualified forms, tracking, CRM scoring).
Mini case study
Thomas, marketing director at a precision engineering SME in London (85 staff), is undecided. Template quote: 12,000 GBP. Custom Next.js quote: 30,000 GBP. Over three years he adds hosting (template 70 GBP/month = 2,520 GBP; Next.js 110 GBP/month = 3,960 GBP) plus two enhancements a year. Custom costs him about 44,000 GBP over three years, the template about 23,000 GBP. But the custom site generates 14 qualified leads/month versus 6: at 5,000 GBP of margin per signed contract and an 8 % conversion rate, the extra 8 leads/month means roughly 3.8 additional contracts/year, or 19,000 GBP of annual margin. The premium pays back in under 18 months.
FAQ
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What is the minimum budget for a credible B2B industrial site in 2026?
Budget at least 8,000 GBP for a polished template. Below that you get a generic site that undermines you in front of demanding enterprise buyers.
Is a London front-end developer day rate really 850 GBP?
In 2026, a senior Next.js front-end developer bills 600 to 850 GBP/day at a London agency, a UX designer 600 to 900 GBP/day. Junior profiles drop to 450 GBP but stretch timelines.
How much does hosting a Next.js site cost?
Between 40 and 150 GBP/month depending on traffic on Vercel, plus the domain (12-40 GBP/year) with CDN included. Plan an annual line of 600 to 1,800 GBP.
Should I integrate HubSpot or Pipedrive from launch?
Yes if you run leads. Integration adds 2,400 to 6,800 GBP but turns the site into a qualifying machine: synced forms, scoring, automated follow-ups.
How long from quote to go-live?
Expect 8 to 14 weeks for a premium custom build. The main delay driver is content sign-off on the client side, not development.
Let's scope your project. Tell us your scope (page count, CRM integration, indicative 15-45k GBP budget) and your trade-show or tender deadline. 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.
