Building a Sustainable Future Together
Four case studies from Thessaloniki area highlight how INTERBETON’s close collaboration with leading developers brings sustainability into practice, with the innovative VELTER solution serving as a key reference point.
In modern construction, selecting the right solutions is closely tied to how a project is designed, executed, and ultimately positioned in the market. In this evolving landscape where environmental performance, durability, and long-term value are increasingly important, the relationship between material producers and developers takes on strategic significance. INTERBETON approach this relationship as a meaningful partnership: offering expertise and technical support, understanding the unique requirements of each project, and providing sustainable solutions that seamlessly integrate into construction practices.
VELTER, INTERBETON’s low-carbon concrete solution, acts as a common foundation across these partnerships. With up to 30% lower embodied carbon compared to conventional concretes in the Greek market, it includes environmental documentation through Type III EPDs, uses locally sourced CE-marked raw materials, and is fully recyclable at the end of its life cycle. VELTER addresses emerging market requirements without compromising the technical reliability essential on site. The following four case studies illustrate how different developers, each with distinct profiles and project identities, leveraged VELTER as a core construction choice with a clear sustainability focus.
Through close collaboration with companies such as KATETH, Nostra Development, Prime Construction, and IA Construction, INTERBETON showcases a new approach to modern construction. The common thread is the transition from simple material selection to a more comprehensive strategic approach, where technical performance, environmental documentation, and commercial value are integrated from the earliest design stage. These developers vary in scale, needs, and markets, yet they share a common goal: seeking solutions that enhance project reliability, meet future requirements, and create meaningful value for the end user.
KATETH: DIFFERENTIATION BEYOND REQUIREMENTS
The KATETH case concerns a residential complex in Thessaloniki comprising four high-quality buildings. As one of the oldest construction firms in the city, with a longstanding partnership with INTERBETON, KATETH engaged VELTER as part of a broader strategy to enhance both the environmental and quality performance of the project.
As Mr. Georgios Georgiadis notes, VELTER was used effortlessly on site, ensuring a smooth and uninterrupted concreting process. This observation highlights the solution’s reliability in high demand projects. In a market where high standards are the norm, KATETH chose VELTER as a key differentiator and an investment in the project’s identity and value.
Beyond technical choices that reduce operational carbon, such as thermal insulation and heat pumps, VELTER significantly reduces embodied carbon from the construction phase itself. This approach goes beyond minimum standards and offers a more holistic sustainable housing proposition. As Mr. Georgiadis also emphasized, institutional support for sustainable construction,particularly in view of upcoming EPBD-related changes, could, through proper incentives, further strengthen such choices and establish them as a new market benchmark.
NOSTRA DEVELOPMENT: SUSTAINABILITY AS A STRUCTURAL CHOICE
The case of two villas in Panorama, Thessaloniki, demonstrates how environmental awareness can be embedded at the heart of construction. Nostra Development, with a long standing presence in Thessaloniki and Athens, operates in a market where quality and customer trust are intrinsically linked. In this project, choosing VELTER served both as a technical differentiation and as a deliberate positioning on the connection between performance and sustainability.
The application experience carried particular importance. As Mr. Leventis distinctively stated, “with VELTER there was not the slightest leakage in the rooftop slab,” highlighting a notable improvement compared to issues encountered in other constructions. Meanwhile, concreting was carried out seamlessly, while the application process was described as straightforward and quick at every stage. VELTER was thus integrated into the project in a way that facilitaded on-site operations, confirming that a solution with an improved environmental profile can reliably meet the requirements of everyday construction. For Nostra Development, the material became a key element of differentiation for an audience that is increasingly attentive to sustainability.
PRIME CONSTRUCTION: SUSTAINABILITY AS A CORE IDENTITY
For Prime Construction, VELTER was intrinsically linked from the outset to the identity of its first project: a modern residential development consisting of six properties in Thessaloniki, featuring maisonettes, apartments, private parking spaces, storage areas, and, on the upper floors, infinity pools with sea view. In this case, sustainability was placed at the core of both the commercial and architectural proposition as a key element that reflects contemporary luxury as well as long term investment value. According to Mr. Aliadis, PhD Candidate and Civil Engineer, “This reflects the profile of our clients. They understand. They are informed. They recognize that the market has changed; it is no longer what it used to be.”
Prime Construction approached the selection of VELTER through a combination of scientific knowledge, company culture, and the need for differentiation. Working with INTERBETON enabled this ambition to move from theory into practice, with systematic technical oversight and support at every stage. As a result, the material became part of the project’s signature: a high-quality development targeted at informed buyers with demanding aesthetic and environmental standards. The company’s decision to invest in an advanced material as a key differentiator for its first project further highlights the strategic importance of this choice.
IA CONSTRUCTION: BUILDING WITH THE FUTURE IN MIND
In the case of the three-story residential building, IA Construction considered VELTER as a forward looking strategic investment. Here, the material was linked to the ambition to prepare a project aligned with the conditions toward which the market is already moving: mandatory calculation and disclosure of carbon footprint, the implementation of maximum limits for embodied carbon and their gradual tightening, as well as increasing demand for documented environmental performance within the new framework for property valuation.
Mr. Tzimikas framed the issue in more fundamental terms, noting that “Construction is creation.” This perspective reflects the idea that the way one builds becomes part of the legacy left behind. Within this mindset, VELTER was treated as an investment in the future: a choice considered pioneering as the market moves toward more sustainable and measurable practices. At the same time, he expressed the view that green construction will gradually be connected to incentives and disincentives, whether financial or fiscal. In this way, for IA Construction, using VELTER also serves as a means of safeguardingt the investment and incorporating environmental performance into the project’s long-term plan.
PARTNERSHIPS THAT TURN SUSTAINABILITY INTO PRACTICE
These four case studies demonstrate how INTERBETON builds trusted relationships with developers seeking solutions that combine technical reliability, clear environmental documentation, and genuine long-term value.
From high-end villas and urban residential buildings to a distinct new development with a clear commercial identity, VELTER served as the common foundation for a more conscious approach to construction. KATETH confirmed that environmental upgrades can be seamlessly integrated even into demanding, high-specification projects. For Nostra Development, sustainability is a structural choice and a key differentiator. Prime Construction linked sustainability with identity, commercial value, and the modern perception of housing. IA Construction emphasized the importance of investing in solutions that prepare projects for tomorrow’s requirements.
Through these partnerships, sustainability becomes a measurable tool for design, performance, and differentiation. This ultimately defines the essence of the footprint that INTERBETON cultivates with the market: enabling technical expertise, environmental responsibility, and strategic thinking to converge in projects that already meet the criteria of tomorrow.
VELTER emerges as the shared reference point of this transition, providing developers with a solution that addresses their project’s technical requirements while integrating the environmental features that are becoming increasingly significant in today’s real estate market.