The verdict in three sentences
A premium multilingual showcase site of 3 to 5 languages for a hotel group costs 25,000 to 55,000 EUR excl. tax in 2026, plus 8,000 to 15,000 EUR for an integrated booking engine. Performance is not cosmetic: an LCP under 2.5 seconds on mobile and clean international hreflang SEO determine how many direct bookings you capture. Well executed, such a site raises the direct booking share from 20 % to 40 %, reclaiming that much in OTA commissions.
What drives the price of a group website
A hotel group website is not a simple showcase: it is a distribution asset. The budget splits between premium design, multilingual structure, performance and booking engine integration. Well-done multilingual work — native translations, per-language URLs, hreflang — alone represents 20 to 30 % of the budget but conditions international SEO.
| Item | Budget 2026 (EUR excl. tax) | Impact |
|---|---|---|
| Premium design & UX | 8,000-16,000 | Brand image, conversion |
| Multilingual development (3-5 languages) | 7,000-15,000 | International SEO |
| Performance (LCP < 2.5 s mobile) | 3,000-6,000 | Conversion, Core Web Vitals |
| Booking engine integration | 8,000-15,000 | Direct booking |
| International SEO (hreflang) | 3,000-7,000 | Organic traffic per market |
| CMS & content governance | 4,000-9,000 | Editorial autonomy |
The direct booking ROI
Every point of direct share won from the OTAs translates into commissions saved. Here is the 2026 order of magnitude for a group whose online revenue reaches 3 M EUR.
| Metric | Current site | Premium multilingual site |
|---|---|---|
| Annual online revenue | 3,000,000 EUR | 3,000,000 EUR |
| Direct booking share | 20 % | 40 % |
| Direct volume | 600,000 EUR | 1,200,000 EUR |
| OTA volume (18 % commission) | 2,400,000 EUR | 1,800,000 EUR |
| OTA commissions paid | 432,000 EUR | 324,000 EUR |
| Annual savings | — | 108,000 EUR |
With 108,000 EUR of commissions saved per year, a 55,000 EUR site pays back in about six months.
Mini case study
Inès, marketing director of a group of four seaside hotels targeting French, German and British guests, has an old slow monolingual site (LCP 4.2 s) that only converts at 20 % direct. She invests 48,000 EUR excl. tax in a 4-language site with integrated engine and LCP cut to 2.1 s. Within a year, the direct share climbs to 38 %, pulling 540,000 EUR off the OTAs. At 18 % commission, that is 97,200 EUR saved per year, i.e. a return on investment in under seven months.
FAQ
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
How many languages do you really need?
Target your real source markets: often FR + EN suffice to start, then add German, Arabic or Italian based on the nationalities that book, each language costing 2,000 to 4,000 EUR excl. tax.
Is hreflang that important?
Yes: it prevents Google from mixing your language versions and surfaces the right page in each country, a condition for effective international SEO.
Why insist so much on mobile performance?
Because the majority of hotel traffic is mobile and an LCP above 2.5 s cuts conversion: gaining 1 second can add several booking points.
Can we keep our current booking engine?
Yes: we integrate the existing engine via API or widget, for 8,000 to 15,000 EUR excl. tax, rather than building one, if yours is adequate.
What is the timeline for a multilingual group site?
Allow 8 to 14 weeks depending on the number of languages, content depth and booking engine integration.
Let's scope your project. Tell us your number of properties, your target languages and your current booking engine: we'll scope a premium multilingual site geared to direct booking. 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.
