Belgium
Belgium's residential market reaccelerated through 2025 as financing conditions stabilised and transactions recovered, while new supply stayed constrained. Statbel's house price index shows prices up 3.7% yearonyear in Q3 2025 (+2.4% quarteronquarter), and the inflation in existinghome prices was highest in Wallonia (5.0%) versus Flanders (3.6%) and Brussels (3.7%). Deal activity is rising: Statbel reports the number of realestate transactions up 13.0% in Q3 2025 versus Q3 2024, while the value ...
Market Overview
Belgium's residential market reaccelerated through 2025 as financing conditions stabilised and transactions recovered, while new supply stayed constrained. Statbel's house price index shows prices up 3.7% yearonyear in Q3 2025 (+2.4% quarteronquarter), and the inflation in existinghome prices was highest in Wallonia (5.0%) versus Flanders (3.6%) and Brussels (3.7%). Deal activity is rising: Statbel reports the number of realestate transactions up 13.0% in Q3 2025 versus Q3 2024, while the value of transactions rose 17.2%. Mortgage origination confirms the rebound-Febelfin reports roughly 55,000 new loans in Q2 2025 (excluding refinancing), up 15.7% yearonyear, with total borrowed amounts up 30.4%; purchaseplusrenovation loans jumped 44.2%, signalling renovationdriven demand. The 2025 demand pulse is partly policydriven: registration duties were cut from 12.5% to 3% in Wallonia and from 3% to 2% in Flanders (for qualifying owneroccupiers), improving effective affordability and pulling forward firsthome buyers. Supply remains the structural constraint: residential building permits have been falling and Statbel's 2025 readings include sharp monthly declines (e.g., July 2025 permits for new residential buildings down 10.7% monthonmonth). Consumer behaviour is increasingly energyfirst: EPC information is mandatory in ads and, in Flanders, buyers of EPC E/F homes must renovate to at least label D within five years-supporting clear price dispersion by energy label. Digitally, Belgium is a portalled ecosystem with rapid product bundling: Immoweb (AVIV Group) acquired data/valuation player Realo (2024), while Mediahuis' Zimmo Group acquired proptech Smooved (2025) to build integrated moving and agent services-signals of expanding AIassisted valuation, lead scoring and workflow tools. In commercial real estate, sentiment is selective: JLL notes ~EUR1.6bn of investment transactions in H1 2025 with industrial & logistics dominant, and market research shows prime office yields broadly stable with average office vacancy at 3.6% by endQ3 2025.
Top Portals in Belgium
Market leader; ranked #1 real-estate website in Belgium (Dec 2025) and ~5.19M monthly visits (Semrus…
Typically #2 in Belgium's portal stack (Similarweb, Dec 2025) with ~1.65M monthly visits (Semrush es…
Flandersfocused challenger portal; ranked #3 among Belgian real-estate sites (Similarweb, Dec 2025).…
Major Belgian portal; ranked #4 in the Real Estate category in Belgium (Similarweb, Dec 2025).
Online public/online sale (auction) channel overseen by notaries; appears in Belgium's top-5 real-es…
Data-driven marketplace and valuation platform; Realo's data products and price-history tooling were…
French-language property portal brand used in Belgium; acquired by Mediahuis-owned Zimmo (deal repor…
Horizontal classifieds marketplace with a large 'Immo' section (thousands of listings), offering an …
French classifieds giant that still shows up among real-estate websites visited from Belgium (Semrus…
Broker-network site with national footprint; appears as a close competitor to Immoweb in Similarweb …
Portal Landscape (10 portals)
| Portal | Type | Notes | GPPI Profile |
|---|---|---|---|
Immoweb immoweb.be | real estate | Market leader; ranked #1 real-estate website in Belgium (Dec 2025) and ~5.19M monthly visits (Semrush estimate). Offers virtual visits, an online estimation tool and bundled services; acquired Belgian proptech/data platform Realo in 2024. | Coming soon |
Zimmo zimmo.be | real estate | Typically #2 in Belgium's portal stack (Similarweb, Dec 2025) with ~1.65M monthly visits (Semrush estimate). Zimmo Group (Mediahuis) acquired Smooved in 2025 to expand integrated moving/agent services. | View profile |
Immoscoop immoscoop.be | real estate | Flandersfocused challenger portal; ranked #3 among Belgian real-estate sites (Similarweb, Dec 2025). Cooperative initiative of real-estate professionals; KBC and broker partners structured a 50/50 ownership for 'Immoscoop 2.0' (press release). | View profile |
Immovlan immovlan.be | real estate | Major Belgian portal; ranked #4 in the Real Estate category in Belgium (Similarweb, Dec 2025). | View profile |
Biddit biddit.be | real estate | Online public/online sale (auction) channel overseen by notaries; appears in Belgium's top-5 real-estate sites list (Similarweb, Dec 2025) and is positioned as a safe, structured auction route by Belgian banking guidance. | Coming soon |
Realo realo.be | real estate | Data-driven marketplace and valuation platform; Realo's data products and price-history tooling were a key rationale for Immoweb's 2024 acquisition. | Coming soon |
Logic-Immo.be logic-immo.be | real estate | French-language property portal brand used in Belgium; acquired by Mediahuis-owned Zimmo (deal reported in 2023). | Coming soon |
2dehands (Immo) 2dehands.be | horizontal with real estate | Horizontal classifieds marketplace with a large 'Immo' section (thousands of listings), offering an alternative discovery funnel alongside specialist portals. | Coming soon |
leboncoin.fr (Real estate) leboncoin.fr | horizontal with real estate | French classifieds giant that still shows up among real-estate websites visited from Belgium (Semrush), useful for cross-border demand capture (especially French-speaking segments). | View profile |
ERA Belgium era.be | real estate | Broker-network site with national footprint; appears as a close competitor to Immoweb in Similarweb competitor analysis and has material Belgian traffic in third-party analytics. | Coming soon |
2025 Signals
Official stats point to renewed nominal growth: Belgium's HPI rose 3.7% y/y in Q3 2025 (with stronger existing-home inflation in Wallonia than Flanders/Brussels). Transactions are rebounding (+13.0% y/y in volume and +17.2% in value in Q3 2025). Bank forecasts broadly converge on moderate ~3% nominal house-price growth for 2025-2026, with upside risk if supply stays tight and downside risk if rates or renovation costs bite.
Acquisitions are a clear leading indicator: Immoweb's acquisition of Realo explicitly targets deeper real-estate data, valuation and new product creation; AVIV positions itself as a real-estate tech company with valuation ('Value Check') as a core capability. Zimmo Group's acquisition of Smooved (2025) extends into tech-enabled moving, verified reviews and agent workflow tooling-adjacent to AI-assisted matching and lead qualification. Portals are also already building 'estimate' and price-per-m2 journeys; Immoweb exposes an 'Estimate my property online' entry point. Third-party analytics now even report measurable LLM referral traffic for leading portals (Semrush), which will likely accelerate structured-data and AI-search optimisation.
Agent licensing and discipline: FPS Economy advises consumers to use agents registered with the IPI; registered agents are subject to control, code of ethics, ongoing training and must use a third-party account for client funds. Professional code of ethics: BIV/IPI's deontological rules (approved by royal decree) explicitly tie agent conduct to core legal frameworks including the Code of Economic Law, AML rules and GDPR. Listing transparency: in Flanders an EPC is required for sale/rent and EPC information must be indicated in advertisements; enforcement includes inspections and fines. Platform/channel integrity: notary-supervised online sales (e.g., Biddit) are positioned as a 'safe and free of surprises' route in Belgian banking guidance. Privacy & advertising compliance is material: Belgium's Data Protection Authority explicitly positions itself as ensuring compliance with fundamental data-protection principles, relevant for ad targeting and profiling in portals/marketplaces.
Belgian proptech consolidation is active: Immoweb acquired Realo in 2024; Zimmo Group acquired Smooved in 2025. At the group level, AVIV states it is backed by KKR and CPP Investments and runs a portfolio that includes Immoweb, reinforcing the broader European consolidation backdrop for marketplace assets.
Transaction-cost policy changed the market's 'math': registration duties were reduced from 12.5%3% (Wallonia) and 3%2% (Flanders) from 1 Jan 2025 under conditions, shifting demand timing and deal mix. Energy-performance regulation is increasingly embedded in listing compliance (mandatory EPC disclosure in ads in Flanders) and in buyer obligations (renovation requirements for low EPC labels). Brussels tightened tenant protections and rent governance in 2024-2025 (tenant pre-emption right from 6 Jan 2024; tighter rent control from 1 May 2025). For AI-driven personalisation, the Belgian DPA is publishing AI-and-GDPR guidance, signalling continued scrutiny of profiling/automation in consumer-facing platforms.
Regulatory Context
IPI/BIV (Professional Institute of Real Estate Agents) governs and disciplines licensed agents; FPS Economy provides consumer-protection guidance (e.g., requiring agents to be registered with IPI); regional authorities/energy agencies (e.g., VEKA in Flanders) enforce EPC/EPB disclosure; the Belgian Data Protection Authority enforces GDPR for portal/advertising data use.
Belgium's compliance burden is multi-layered (federal + regional): portals and agents must manage (1) privacy-safe lead capture/targeting under GDPR oversight, (2) higher listing-data completeness driven by EPC disclosure requirements and consumer scrutiny, and (3) tighter operational controls around client funds plus anti-fraud/AML expectations via IPI/BIV rules and enforcement. In practice, this favours platforms that can standardise and validate key fields (EPC/energy label, address, surface, legal status), offer clear audit trails for edits, and support secure communications and payments—reducing disputes and raising consumer trust.
Observed Patterns
Quality is increasingly defined by compliance-linked fields (EPC info in ads) and by professional accountability (IPI/BIV code of ethics; third-party accounts for client funds). Expect stronger penalty for incomplete/low-quality listings and higher value for portals that normalise EPC, renovation status and price history across regions.
Discovery remains highly concentrated: Similarweb ranks Immoweb #1 and Zimmo #2 for Belgium in Dec 2025, while Semrush estimates materially higher traffic for the top portals versus the long tail. Horizontal classifieds (e.g., 2dehands; leboncoin.fr) still matter as alternative funnels, especially for price-sensitive or cross-border search.
The market experience is moving from 'search-only' to 'search + transact + move': portals surface virtual visits and online valuation/price-per-m² tools, while service layers extend into financing simulations and post-sale logistics (e.g., Smooved's utility-transfer and review stack; notary-supervised online auctions via Biddit).
Product innovation is increasingly data- and workflow-led: Immoweb's Realo acquisition explicitly targets richer data, price history and new products; Zimmo's Smooved acquisition targets end-to-end services and verified reviews; and AVIV frames valuation as a core group capability. Expect more automated valuations, fraud detection, and agent tooling (CRM-like features, review/reputation, lead scoring) as differentiators.
Frequently Asked Questions
The latest official data show positive nominal growth (HPI +3.7% y/y in Q3 2025). Bank research generally expects moderate continued growth rather than a broad-based fall—around ~3% per year in 2025 and 2026—though the range is sensitive to interest rates, supply constraints and renovation costs.
Multiple indicators point to a real rebound. Statbel shows transaction volumes up 13.0% y/y in Q3 2025, and Febelfin shows new mortgage lending up 15.7% y/y in Q2 2025 with borrowed amounts up 30.4%. That said, the January 2025 cuts in registration duties in Wallonia and Flanders likely pulled forward some demand and can temporarily distort mix and average prices.
Energy performance has become a first-order pricing and liquidity driver because it is embedded in both disclosure and buyer obligations. In Flanders, EPC information must be shown in advertisements and buyers of EPC E/F homes have a renovation obligation (to at least label D within five years), supporting persistent discounts for poor EPC and premiums for efficient stock.
In Dec 2025, Similarweb ranks Immoweb #1 and Zimmo #2 in the Belgian Real Estate category, followed by Immoscoop (#3), Immovlan (#4) and Biddit (top 5). Semrush estimates Immoweb at ~5.19M monthly visits vs ~1.65M for Zimmo and ~1.04M for Immoscoop, indicating a highly concentrated 'winner-takes-most' discovery layer.
Key risks cluster around (1) consumer protection and agent legitimacy (FPS Economy emphasises using IPI-registered agents; registered agents must follow the code of ethics and use third-party accounts), (2) listing accuracy/completeness (EPC disclosure and enforcement), and (3) data privacy (the Belgian DPA's enforcement role under GDPR—especially relevant for profiling and ad targeting).
Data Confidence
Assessment Reasons:
- •Strong official statistics available (Statbel house price index, transaction indices; Febelfin mortgage lending).
- •Forecasts rely on bank research (ING/KBC) and should be treated as scenario-based.
- •Portal traffic and rankings are based on third-party estimation tools (Similarweb/Semrush), not audited first-party data.
- •Regulation is fragmented across regions (e.g., EPC rules and tenant protections differ), so compliance details can vary by locality and asset type.
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