Real Estate Agency Lead Generation: Altro & Immowi
Explore how Immowi has excelled in real estate agency lead generation for Altro Vastgoed, sustaining growth across Belgium for over 6 years.
Overview
Altro Vastgoed is one of the largest real estate agencies in Belgium, operating a wide network of offices across Flanders and Brussels. Beyond traditional property sales and rentals, Altro's business spans four units — Altro Vastgoed, Altro Projects, Altro Invest, and Altro Home — covering everything from residential sales and new-build developments to investment property and interior advice. Since 2019, Altro has worked with Immowi as a fixed lead generation partner, making it one of Immowi's longest-running collaborations. Rather than supporting a single office or project, Immowi drives qualified leads across Altro's entire network — demonstrating that lead generation isn't just valuable for property developers, but for large-scale real estate agencies as well.
The challenge
As one of the largest real estate agencies in Belgium, operating offices across a large part of Flanders and Brussels, Altro Vastgoed needs a continuous stream of qualified leads — not for a single project, but across an entire network of offices and business units. For an agency of this scale, the challenge isn't just generating interest, but continuously feeding multiple offices with sales and rental mandates, while also driving qualified leads for new-build projects and real estate investments. Each business unit — Altro Vastgoed, Altro Projects, Altro Invest, and Altro Home — requires a different approach and a different target audience, from private sellers and tenants to investors and new-build buyers. Altro was looking for a partner capable of supporting this scale: a lead generation strategy that could grow alongside an extensive office network, rather than a one-off campaign aimed at a single type of client.
The solution
Since 2019, Altro Vastgoed has worked structurally with Immowi as its fixed lead generation partner. What sets this collaboration apart from a typical agency campaign is its scale and diversity: Immowi doesn't support a single office or a single property type, but Altro's entire network across Flanders and Brussels. Through data-driven targeting, conversion-focused campaigns, and continuous optimisation, Immowi helps Altro reach both owners looking to sell or rent out their property, and buyers, tenants, and investors searching for their next home or investment. This approach is tailored to each business unit individually: valuation requests and sales mandates for Altro Vastgoed, new-build leads for Altro Projects, investor profiles for Altro Invest, and interior-advice leads for Altro Home. Because the partnership has now run for more than 5 years, Immowi has built a deep understanding of how Altro's market evolves per region and per office — allowing campaigns to be continuously refined based on what actually works, rather than applying generic targeting to a highly local real estate market.
The results
The partnership between Altro and Immowi shows how lead generation can be just as scalable and measurable for real estate agencies as it is for property developers. By acting as a fixed partner for over 5 years, Immowi has consistently helped Altro generate valuation requests, sales mandates, and rental mandates across its entire office network. The long-standing nature of this collaboration — one of Immowi's longest-running partnerships — demonstrates that the approach continues to deliver results even as an agency grows and expands its service offering into new business units such as investment property and interior advice.
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