The verdict in three sentences
In Brussels, a notary office or legal documents firm website built by a local agency costs, as a 2026 ballpark, about 5 000 to 25 000 EUR, the top of the range covering trilingual sites with a client area. Kolonell builds the deed pages, appointment booking and first-contact form for a fixed price of 2 700, 4 500 or 8 200 EUR, in native French and English. The Dutch version changes the maths: a Brussels agency often includes it, while at Kolonell it is supplied by the office or quoted separately, so compare the 3-year total cost with translation included.
This version is written for the English-speaking notaries, partners and practice managers of Brussels legal offices, many of whom serve EU officials, expatriate families and international investors.
What do Brussels agencies, freelancers and Kolonell charge?
The ranges below are prudent ballparks, not official figures. They draw on public rate cards of Brussels and Walloon agencies, minimum project sizes on Clutch.co profiles, hourly rates published by Belgian agencies (often 70 to 120 EUR per hour) and rates visible on Malt and Upwork. The number of languages and a client area move the price more than anything.
| Criterion | Brussels agency | Local freelancer | Kolonell |
|---|---|---|---|
| Build cost, 2026 ballpark | 5 000 to 25 000 EUR | 1 500 to 6 000 EUR | 2 700 / 4 500 / 8 200 EUR, fixed |
| Changes outside scope | Often 70 to 120 EUR per hour | Often 45 to 80 EUR per hour | Quoted before any work |
| Usual timeline | 8 to 12 weeks | 5 to 10 weeks | 3 to 4 weeks, Premium usually 4 to 6 |
| Dutch version | Often included or outsourced | Depends on the person | Supplied by the office or quoted separately |
| French and English copy | Often billed separately | Rarely included | Native, included |
| Team portraits in the office | Frequent option | Rarely | Not included: your photos or a local photographer |
| Support after launch | Maintenance contract | Case by case | 3 months, 6 on Premium |
Payment is by bank transfer or Wise: 50 % to start, 50 % at delivery. A project manager works in your time zone, with Google Meet calls at a time that suits you and a written update every week. The team is based in Senegal (GMT), 1 to 2 hours behind Brussels depending on the season. The domain stays in your name and all access is handed over. Full tier details are on our international website offer.
Which 3-year total cost should you compare?
The table assumes the same maintenance budget on both sides, since Kolonell maintenance after the support period is quoted on request.
| Item over 36 months | Brussels agency (mid range) | Kolonell Growth |
|---|---|---|
| Website build | 14 000 EUR | 4 500 EUR |
| Dutch version | Included | Legal translator, assumption 1 600 EUR |
| Maintenance (same assumption) | 120 EUR per month over 33 months, 3 960 EUR | 3 960 EUR, maintenance quoted on request |
| Team portraits | Option, 800 EUR | Photographer booked separately, 800 EUR |
| Updates (staff changes, new pages) | 6 hours at 95 EUR, 570 EUR | Quoted beforehand, assumption 500 EUR |
| Indicative total | 19 330 EUR | 11 360 EUR |
The gap narrows as soon as Dutch is paid separately. That is exactly why every supplier should fill in the same grid.
What does each tier include for a notary office?
| Item | Starter 2 700 EUR | Growth 4 500 EUR | Premium 8 200 EUR |
|---|---|---|---|
| Deed pages | Main areas: property, family, companies | One page per common deed: sale, mortgage, gift, estate, marriage contract, legal cohabitation, company formation | Full structure, guides by life situation |
| Team | Office page | Profiles of notaries and staff, areas covered | Detailed profiles, languages spoken |
| Appointments | Link to your tool | Embed of your existing tool | Journey per deed type; client area quoted on request |
| First contact | Simple form | Qualified form: deed type, timing, preferred language | Journey per profile: individuals, companies, expatriates |
| Bilingual FR/EN site | No | No | Included |
| Timeline | 3 to 4 weeks | 3 to 4 weeks | Written schedule, usually 4 to 6 weeks |
A client area with document upload, case tracking or a custom fee calculator is an application, quoted on request. So is ongoing search work.
What does a Brussels notary office need, and which rules apply?
In Brussels, a notary office's clients mix families buying their first home in Uccle, Ixelles or Schaerbeek, EU officials and institution staff settling for a few years, entrepreneurs forming a company, and heirs living abroad. Many look for a notary who speaks their language. The site must state clearly which deeds the office handles, in which languages, how to prepare a first appointment and which documents to bring. Properties the office puts up for sale can link to Biddit, the notarial online sales platform, or to listings on the property portals.
On compliance, the facts only. A notary is a public officer subject to professional rules that govern communication: no promises, no comparison with colleagues, an informative tone, validated by the office. Part of notarial fees is set by a legal scale: the site can explain this and link to the notariat's public calculators rather than display home-made amounts. Form data falls under the GDPR, supervised by the Belgian Data Protection Authority. The business identification details must appear on the site. WCAG 2.1 AA serves as the accessibility reference. This is not legal advice.
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How do you compare quotes, and which red flags matter?
- A trilingual site with no detail on who writes and proofreads the legal Dutch.
- A form asking for ID documents or detailed asset information with no thought about storage.
- Marketing copy promising speed or savings, at odds with professional rules.
- A domain registered in the supplier's name.
- An uncapped hourly rate for team updates.
Mini case study
Illustrative example. Isabelle V., partner notary in a twelve-person office in Ixelles, receives two proposals. A Brussels agency quotes 16 500 EUR for a site in French, Dutch and English, delivered in 10 weeks. Kolonell proposes Premium at 8 200 EUR in French and English, with a Dutch translation by the office's legal translator at 1 800 EUR and portraits by a local photographer at 700 EUR.
Kolonell route: 8 200 + 1 800 + 700 = 10 700 EUR, live in 5 to 6 weeks. Agency route: 16 500 + 700 = 17 200 EUR. The gap is 6 500 EUR, narrower than it first looks, and Isabelle factors in her team's hours proofreading the Dutch version before deciding.
FAQ
How much does a notary office website cost in Brussels in 2026?
With a local agency, expect a ballpark of 5 000 to 25 000 EUR, and 1 500 to 6 000 EUR with a freelancer. Kolonell charges a fixed 2 700, 4 500 or 8 200 EUR.
Does Kolonell write the Dutch version?
No. Kolonell writes native French and English; Dutch is supplied by the office or quoted separately, often 1 200 to 2 000 EUR with a legal translator for a mid-size site.
Can fees be shown on the site?
The site can explain the legal fee scale and link to the notariat's public calculators. A custom calculator is an application quoted on request.
Is online appointment booking included?
Embedding or linking your existing tool is included from Starter at 2 700 EUR. A client area with document upload is quoted on request.
How does payment work?
By bank transfer or Wise, 50 % at kickoff and 50 % at delivery. On Premium, that means two payments of 4 100 EUR.
Let's scope your project. Send us your list of deeds, your languages and your booking tool, and we come back with a fixed-price tier and a 3 to 4 week timeline. Request your free quote or see the international offer.
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.
