Practice 03 · Web, software & digital solutionsWebsite design and development: a site built around what you need it to do

A website can look polished and still leave visitors without answers: what does this company offer, for whom, and what should I do next? That gap is rarely a design budget problem. It comes from building a site without thinking through structure, content, interface and technology together. At Kopus, website design and development treats those four dimensions as a single project.

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At a glanceCustom website development: the essentials

Who it is for
Companies, independents, institutions and brands that want a fast, well-ranked website that is easy to update, without depending on a theme or plug-ins.
What you get
A website designed and developed from scratch, its back office built for your team, technical SEO, launch and training.
Typical timing
1 to 3 weeks for a landing page, 4 to 8 weeks for a showcase website, 8 to 14 weeks for a complete website.
Typical budget
From €1,500 excl. VAT for a landing page to €20,000 excl. VAT for a complete website; more for business features.

Get an estimate See indicative prices

Who it is for, and whenWhen is it time for a new website?

The need becomes clear when the distance between what your business does and what its site shows is visible to everyone.

  • Your current site is several years old, renders badly on a phone and nobody dares touch it any more.
  • You are changing your name, your positioning or your offer, and the existing pages describe a company that no longer exists.
  • Your current website, built on a theme and plug-ins, has become slow, fragile or hard to evolve, and every update raises the fear of a breakdown.
  • You have accumulated secondary sites, landing pages and subdomains created campaign by campaign, with no overall coherence.

The scopeWhat a Kopus website project includes

  • Site architecture Page tree, information hierarchy, section naming and navigation logic, agreed before a single screen is drawn.
  • Custom development A website written for its purpose, with no theme or plug-ins, a back office designed for the people who will update it and the features you actually need.
  • Content A writing plan, priority pages, and copy written by us or structured from your own material.
  • Interface design for desktop, tablet and phone, consistent with your visual identity.
  • The technical SEO foundation Markup, load speed, structured data, redirects from the old site, sitemap and indexing files.
  • Hosting, domain name, certificates, backups and training for the people who will administer the site.
  • Follow-up after launch Updates, monitoring and further development.
  • A fast, secure site that follows accessibility good practice.
  • A healthy SEO foundation ready to be built on.
  • Control over your content, without depending on us for every comma.

Sample site structureOne page, one job: the site map before the screens

Every page in the structure is given a job before it is written: carry a topic for search engines, reassure, inform or prompt an enquiry. A page without a clear job weighs the site down; a visitor question with no page to answer it is a lost enquiry. This map then sets the page templates, the page addresses and the redirect plan from the old site.

  • Home/Signposting
    • Services/servicesSEO pillar page
      • Installation/services/installationConversion
      • Maintenance/services/maintenanceConversion
      • Training/services/trainingConversion
    • Our work/workReassurance
      • Case studies/work/casesReassurance
      • Client reviews/work/reviewsReassurance
    • Resources/resourcesEditorial content
      • Practical guides/resources/guidesEditorial content
      • FAQ/resources/faqEditorial content
    • Company/companyReassurance
      • Team/company/teamReassurance
      • Certifications/company/qualityReassurance
    • Contact/contactConversion
      • Request a quote/contact/quoteConversion
      • Book a meeting/contact/meetingConversion

Outside the main navigation

  • Legal pagesLegal notice, privacy, cookiesLegal requirement
  • Technical filesXML sitemap, robots, 301 redirectsIndexing
Illustrative example for a services company. Sections, addresses and roles are defined with you, based on your goals and on what your customers search for.

Why custom-builtWhat custom development changes for your website

We do not build websites on bought themes or stacks of plug-ins. Each website is developed for its purpose, with a back office designed for the people who will update it. The difference shows in indicators you can check.

Performance

Light pages that load fast on mobile, with Core Web Vitals (LCP, INP, CLS) in the green, because nothing unnecessary is loaded.

Security

No third-party plug-ins to watch and no flaws inherited from a theme: controlled code, managed updates, HTTPS and security headers.

Accessibility

Contrast, keyboard navigation, alternative text and heading structure built in from the design stage, following WCAG criteria.

Search and AI

Clean markup, structured data, internal linking, sitemap and declared language versions: a solid base for Google and AI assistants alike.

A back office that fits

You update your copy, photos and news in an interface that shows only what you need.

Ownership and growth

The code, the content and the domain name are yours. The website grows with your business, with no redesign imposed by a platform.

For reference, kopus.net scores 100/100 for accessibility, best practices and SEO in Lighthouse (measured in October 2026).

The methodHow a website project runs

  1. Inventory and objectives

    The existing site, content worth keeping, target audiences and the result expected, from plain information to quote requests.

  2. Site map and wireframes

    The page plan and templates are laid out as wireframes so that structure is discussed before colour.

  3. Design and content in parallel

    Screens are styled while text, images and proof points are gathered, so that mockups rest on real content.

  4. Build and development

    The site is built on the chosen platform, with forms, useful connections (for example an email marketing tool or a CRM) and performance rules.

  5. Testing, migration and launch

    Page-by-page checks, redirects from the old site, domain switch, then monitoring over the first weeks.

Indicative pricesHow much does a custom website cost?

At Kopus, a custom website usually costs between €1,500 excl. VAT for a campaign landing page and €8,000 excl. VAT for a small business showcase website. A more complete website, multilingual or content-rich, sits between €8,000 and €20,000 excl. VAT; a website with business features starts at around €20,000 excl. VAT. The gap between two projects depends less on the number of pages than on the content work, the features and the connections to your tools.

Landing page

€1,500–€4,000 excl. VAT

A Google Ads campaign, a launch, a trade show: one page designed to convert.

  • Single custom page
  • Form and conversion tracking
  • Carefully built mobile version

Typical timing: 1 to 3 weeks

Request a quote

Showcase website

€3,500–€8,000 excl. VAT

A small business, a shop or an independent who wants to be found and contacted.

  • 5 to 10 pages, custom design
  • Back office for your updates
  • Core technical SEO

Typical timing: 4 to 8 weeks

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Complete website

€8,000–€20,000 excl. VAT

An SME, an institution or a brand with several offers, audiences or languages.

  • Rich structure, news
  • Multilingual, copywriting or rewriting
  • Integrations (booking, CRM…)

Typical timing: 8 to 14 weeks

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Website with business features

From €20,000 excl. VAT

A website that also does work: client area, configurator, advanced booking.

  • Features built for your business
  • Connections to your software
  • Delivery in releases

Typical timing: schedule set during scoping

Request a quote

What makes the price vary

  • The content work: copy supplied, rewritten or written from scratch, photos and videos to produce.
  • The number of different page templates, more than the total number of pages.
  • Features: advanced forms, booking, member area, search, filters.
  • Languages, and the translation or adaptation of content.
  • Connections to your tools: CRM, calendar, management software, payment.
  • Taking over an existing website: redirects, content migration, keeping your rankings.

Recurring costs

Hosting, backups and maintenance
€60 to €250 excl. VAT per month depending on traffic and service level
Changes and new content
fixed price or time spent, quoted
Domain name
a few dozen euros a year, in your name

Indicative ranges, excluding VAT, based on our projects. Each quote is refined after a first conversation and details what is included.

Your project deserves a precise quote

Describe it in a few lines, even without a specification: we will come back to you with a reasoned estimate and the possible options.

Get an estimate

Our positionOur view on building websites

There is no such thing as a good website in the abstract, only a site suited to what you ask of it. Informing, establishing credibility, generating quote requests or taking payments: these four goals call for different structures, different technology and different budgets. Saying from the outset which one comes first avoids projects that try to do everything and do nothing well. It is also what justifies the choice of platform.

Your questionsFrequently asked questions about this service

What makes a website project succeed?

Describing the visitors you expect and what they need to be able to do before the first page is designed. Then testing real journeys and technical quality before launch, not after.

Why build a custom website rather than use a CMS?

Because a custom website loads only what is useful, is not exposed to flaws in third-party plug-ins and comes with a back office designed for your updates. Kopus builds all its websites from scratch: you gain speed, security and freedom to evolve, with no licence fees or dependence on a theme.

What happens to the old site and its search visibility?

Existing addresses are inventoried and redirected to the matching new pages so that the links you have earned are not lost. Content that performs is kept and reorganised rather than rewritten on principle.

How long does it take to build a website?

Allow 1 to 3 weeks for a landing page, 4 to 8 weeks for a showcase website and 8 to 14 weeks for a complete website. Timing depends mostly on when content is available; the schedule is set during scoping and then kept.

Who owns the site?

You do. Code, content, domain name and hosting are in your name, and you can change provider whenever you want.

How much does a website cost?

At Kopus, allow €1,500 to €4,000 excl. VAT for a landing page, €3,500 to €8,000 excl. VAT for a showcase website and €8,000 to €20,000 excl. VAT for a complete website; a website with business features starts at around €20,000 excl. VAT. Hosting and maintenance then cost €60 to €250 excl. VAT per month.

Will we be able to edit the site ourselves?

Yes. You receive training on updating text, images and pages, and you keep all the access. Kopus stays available for more technical changes.

What technology is used for a custom website?

Lightweight, standard development (HTML, CSS, PHP or JavaScript as needed), with no theme or page builder, hosted on infrastructure you control. The choice is explained during scoping and documented at delivery, so the website can be taken over by others if you wish.

SectorSectors that use this service

Let’s bring your projects to lifeYour next project starts here.

Let’s talk about your future website, what it needs to achieve and the platform that fits.

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30 minutes to lay the foundations, free