The verdict in three sentences
A luxury real estate agency in Brussels should redesign its website when its property pages no longer do justice to the houses of Uccle or the flats of avenue Louise, and when expatriate clients from the EU institutions cannot find proper English or Dutch pages. Brussels web agencies typically quote €18,000 to €50,000 for this kind of redesign in 2026, while Kolonell delivers on a fixed grid of €2,700, €4,500 or €8,200 in 3 to 4 weeks once content is ready. The main danger lies in property URLs, the listings feed to portals and valuation forms, which must all come through the switch intact.
Which signals show it is time to redesign?
For English-speaking agents and founders working in Ixelles, Woluwe or around avenue Louise, in high-end sales and lettings, the symptoms are familiar:
- Property pages show compressed photos, with no floor plan or highlighted virtual tour.
- The site exists in French only, or with partial Dutch and English versions, while a large share of buyers and tenants come from the EU institutions.
- Sold properties vanish overnight, and their URLs return a 404 error.
- The valuation form asks for the exact address, phone number and family situation before even offering a meeting.
- Listings are entered twice, in the agency software and on the site.
- The team cannot tell which pages generate viewing requests.
The scope of each tier is set out on the international offer page.
What budget should you plan in Brussels in 2026?
A 2026 ballpark drawn from typical agency quotes and public rate pages, for guidance only. Kolonell prices are fixed.
| Option | 2026 ballpark | Typical timeline | What to check |
|---|---|---|---|
| Established Brussels web agency | €25,000 to €50,000 | 12 to 16 weeks | Whether three languages are really included, whether the listings feed is priced |
| Real estate specialist studio | €12,000 to €25,000 | 8 to 12 weeks | Dependence on a proprietary theme or plugin |
| Freelancer | €3,500 to €10,000 | 6 to 12 weeks | URL migration and compliance rarely covered |
| Kolonell Starter | €2,700 | 3 to 4 weeks | Compact showcase site, one language |
| Kolonell Growth | €4,500 | 3 to 4 weeks | Neighbourhood pages, polished property pages, valuation |
| Kolonell Premium | €8,200 | 3 to 4 weeks | The multilingual tier, languages set in the quote, advanced animations |
Every Kolonell tier includes a project manager reachable in Brussels time, native English or French copywriting, delivery in 3 to 4 weeks and 3 months of support. What stays on quote: syncing the listings feed with your software and portals such as Immoweb, an owner area, viewing bookings connected to a calendar, custom applications and ongoing search work. Kolonell built, for instance, the website of Orven Properties, a real estate agency in Dubai (orvenproperties.com).
What should you inventory before migration?
In real estate, migration depends on the volume of property pages. This inventory, drawn up here for a fictional agency, works as a template.
| Page type | Example volume | Recommended handling |
|---|---|---|
| Active properties for sale | 60 | New readable URL per language, 301 redirect from the old one |
| Active properties to let | 45 | Same handling, let status shown without deleting the page |
| Properties sold or let more than 12 months ago | 300 | 301 redirect to the neighbourhood or category page |
| Neighbourhood pages (Uccle, Ixelles, Woluwe, avenue Louise) | 8 | Rewritten and expanded in three languages |
| Service pages (sales, lettings, valuation, management) | 6 | Rewritten, minimised forms |
| Articles and guides | 25 | Keep high-performing URLs, merge duplicates |
With 444 pages in this example (60 + 45 + 300 + 8 + 6 + 25), the redirect map becomes the single most important deliverable of the project, ahead of the design.
Which risks, and what timeline?
| Risk | Consequence | Mitigation |
|---|---|---|
| Lost property URLs | Organic traffic drop, shared links dead | Full inventory, 301 redirects, sitemap submitted in Search Console |
| Listings feed interrupted | Properties missing from the site or portals | Freeze edits 48 hours before the switch, import test, integration priced in the quote |
| Valuation form | Excessive data, unclear retention | Minimisation: municipality, property type, size, contact; retention period in writing |
| Language versions | Incomplete Dutch or English pages, missing hreflang tags | URLs per language, parity on key pages, native review |
| Sales claims | Phrases such as best price guaranteed or promised time to sell | Compliance review of marketing content before go-live |
| Downtime | Switch on a Saturday full of viewings | Midweek switch, DNS TTL lowered the day before |
Typical Kolonell timeline: inventory and audit on days 1 to 3, trilingual site structure and redirect map in week 1, design and copywriting in week 2, build and forms in week 3, testing, compliance review and go-live in week 4.
On the legal frame, stay general. The GDPR applies to contact and valuation forms, and the Data Protection Authority (APD/GBA) is the competent Belgian regulator. Agents licensed by the IPI must also follow their professional conduct rules, including on professional disclosures and advertising, to be checked with your advisor. This is not legal advice.
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When is a Brussels agency the better choice?
A local agency has the edge if you want photo and video shoots coordinated by the same team for every property, a full brand strategy with in-person workshops, or a monthly on-site marketing retainer. It may also be more comfortable with a very specific local property software. If your priority is an elegant trilingual site, a clean migration of property pages and a controlled budget, a fixed-grid remote studio is usually the leaner option.
Mini case study
Illustrative example: Charlotte runs a fictional high-end agency in Uccle with 105 active properties. A Brussels web agency quotes €36,000. She looks at Kolonell Premium at €8,200, the multilingual tier, with French, Dutch and English set in the quote, plus an independent translator to review the Dutch at €1,400 (a third-party cost). Syncing the listings feed stays on quote.
- Kolonell plus review: €8,200 + €1,400 = €9,600
- Gap with the local quote: €36,000 minus €9,600 = €26,400
- With her own average fee of €15,000 per sale, the redesign equals about 0.64 of a sale (9,600 divided by 15,000)
FAQ
How long does a real estate agency website redesign take in Brussels?
Three to four weeks with Kolonell once content is ready, against 8 to 16 weeks with a local agency. Preparing copy in three languages often sets the real start date.
What should we do with pages of properties already sold?
Do not delete them without a redirect. Recent properties can stay online with a sold status, and older ones, for example beyond 12 months, redirect with a 301 to their neighbourhood page.
Is the listings feed to portals included?
No, syncing with your software and portals stays on quote, because it depends on the tools you use. The site itself is delivered within the grid, from €2,700 to €8,200.
Can the site run in French, Dutch and English?
Yes, with Premium at €8,200, the multilingual tier, languages set in the quote. Native English or French copywriting is included; the Dutch review can be handled by an independent translator.
What does the site cost after the 3 months of support?
Maintenance and hosting after the 3 included months are on quote. Plan at least a quarterly redirect check, especially if you publish more than 20 properties a month.
Let's scope your project. A luxury real estate agency website redesign in Brussels, trilingual if needed, from €2,700 to €8,200, delivered in 3 to 4 weeks. See the international offer or request a free quote: detailed reply within 48 hours.
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.