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Altree Developments Partners with LanTree to Expand into U.S. Market

Together, the two firms bring their shared values and multi-generational expertise to West Side Square—a transformative rental development in Jersey City.

A Legacy of Vision and Growth

At Altree Developments, our foundation is rooted in decades of experience and a proud multi-generational legacy, stemming from the success of H&R and Lanterra Developments. We are committed to pushing boundaries, exploring new markets, and building meaningful partnerships that reflect our values and vision for the future.

Today, we’re proud to announce a significant milestone in our journey—our partnership with LanTree Developments, a family-affiliated office led by Raphael Mandelbaum. This collaboration marks Altree’s expansion into the U.S. market, combining our shared legacy of excellence with a bold new chapter of innovation.

 

Introducing West Side Square in Jersey City

The Altree–LanTree partnership is being brought to life through West Side Square, a purpose-built rental development located in the heart of Jersey City, New Jersey. Strategically positioned along the New Jersey Port Authority (PATH) transit system, the community offers unmatched connectivity—just a 13-minute train ride to Manhattan’s Financial District via the Journal Square Transportation Centre. West Side Square will deliver: 

  • 477 urban rental residences
  • A mix of studio to three-bedroom units
  • A thoughtful suite of lifestyle amenities
  • Ground-floor retail featuring a curated tenant mix

 

The Factory and Piazza
The Factory and Piazza
Progress Work April 2025
Progress Work April 2025

Construction Progress: Major Milestones Achieved

Construction at West Side Square is progressing steadily. As of now:

  • Concrete work is 99% complete, with over 22,315 yards poured
  • Ceiling and wall framing has reached the 6th floor
  • Ground-floor storefront framing is underway
  • Plumbing, electrical, and HVAC rough-ins are advancing on multiple levels
  • The 6th-floor roof is taking shape with parapet wall installation, rooftop risers, and railing posts in place

These milestones reflect a strong trajectory toward delivering a dynamic new community to Jersey City.

 

Why Journal Square? A Neighbourhood on the Rise

Journal Square is quickly becoming one of the most desirable urban hubs in New Jersey. The area has experienced significant revitalization, led by transformative projects such as the Journal Squared Towers.
West Side Square residents will enjoy proximity to:

  • Acclaimed restaurants, bars, and nightlife
  • Mana Contemporary, The Landmark Loew’s Theater, and Art House Productions
  • Walkable transit, culture, and convenience all in one place

This unique blend of urban vibrancy, cultural depth, and natural beauty makes Journal Square the ideal location for our first U.S. project.

 

About LanTree Developments

LanTree Developments specializes in unlocking the potential of underutilized land across New York and New Jersey. The firm is known for developing residential buildings that:

  • Respect and enhance neighbourhood character
  • Foster thoughtful, well-integrated communities
  • Apply a modern, holistic approach rooted in multi-generational expertise

Their commitment to revitalizing urban areas aligns perfectly with Altree’s values, making this partnership a natural fit.

 

Looking Ahead: A Shared Vision for the Future

Together, Altree and LanTree are shaping the future of real estate development across Canada and the U.S. This partnership is more than a joint venture—it’s a reflection of our mutual dedication to innovation, family values, and creating long-term value in the communities we serve.

 

The Residences -  April 2025
The Residences -  April 2025

To learn more about West Side Square and explore the vision behind this transformative rental community, visit: westsidesquare.com and follow us on Instagram @westsidesquarejc for the latest updates.

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