The verdict in three sentences
For a real estate agency, replatforming is not just a design change: it is the listing-feed sync, the map search and the alerts that make the commercial difference. The realistic 2026 budget is 8,000-20,000 EUR, calibrated by the number of portals to sync and search complexity. The golden rule: migrate the 3,000+ listings via API to avoid re-keying and preserve the SEO of existing property pages.
What the budget covers
Price depends mostly on feed integrations and search features, not on the number of static pages.
| Feature | Basic (8,000-12,000 EUR) | Advanced (12,000-20,000 EUR) |
|---|---|---|
| Synced listing feeds | 1 portal | 3+ portals + MLS gateway |
| Search | Filters + sort | Map + draw-a-zone |
| Alerts | Email + push + SMS | |
| Listing migration | One-off API import | Continuous two-way sync |
| Property pages | Single template | Templates per property type |
| Agent space | No | Yes (mandates, stats) |
| Timeline | 8-10 weeks | 10-12 weeks |
Continuous sync stops a sold property from staying live: it is a credibility issue as much as a conversion one.
The SEO stakes of migration
An agency often has thousands of indexed property pages. Breaking them means losing months of long-tail traffic.
| Element | Without migration plan | With migration plan |
|---|---|---|
| Indexed property pages preserved | 40-60% | 90-100% |
| Manual re-keying | 3,000+ listings | 0 (API import) |
| Post-migration traffic loss | 20-40% for 3 months | < 5% |
| Time to launch | + 4-6 weeks | included |
| 301 redirects | ad hoc | exhaustive mapping |
The cost of a serious 301 mapping is marginal against the traffic loss avoided: it is the first line item to secure in the quote.
Mini case study
Karim, manager of a real estate agency in Miami, runs 3,200 listings split across a portal and a transaction tool. Replatforming quote: 15,500 EUR, 11 weeks, map search and full API migration. Before: manual re-keying estimated at 3,200 listings x 12 minutes, i.e. 640 hours avoided. After: continuous sync, 90% of property pages preserved, organic traffic stable from month one. Map alerts generate 18 viewing requests/week versus 7 before, i.e. +157% qualified buyer leads.
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FAQ
Will I have to re-key all my listings?
No. An import via your tool's or portal's API pulls in the 3,000+ properties automatically. Manual re-keying would mean hundreds of wasted hours.
Is map search worth the cost?
Yes for a high-volume agency. It sharply raises engagement and viewing requests. Count the extra cost in the advanced 12,000-20,000 EUR tier.
How do I avoid losing SEO?
Exhaustive 301 mapping of property pages and keeping URLs where possible. A good plan preserves 90-100% of indexed pages.
Can I sync several portals?
Yes: portals, MLS gateway and other feeds. Each added source raises the budget but removes double entry and keeps the catalog reliable.
How much downtime?
The cutover runs on a parallel environment then a DNS switch in a few hours. No planned outage for your visitors.
Let's scope your project. Tell us your portals, listing volume and search needs: we cost the replatforming with API migration and an SEO plan. 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.
