BUILDING WITH EXPERIENCE AND QUALITY The roots of our company go back over 100 years. Since then, we have been building in the "La Plaiv" region here in the Engadine and surrounding areas. From that time, we have carried forward not only our experience but also a deep awareness of tradition and quality. Over the years, we have added a high-tech machinery fleet, the integration of innovative building methods, and modern management. Peter Hotz successfully led the company for 28 years; since 2016, I, Gian Marco Hotz, have taken over the management. For both of us, building is in our blood, and we share a passion for sports. Thus, Rocca + Hotz AG has sponsored, among others, the Swiss skier and 2014 gold medalist Sandro Viletta, who hails from our hometown, La Punt. Rocca + Hotz AG has a century of experience, a love for craftsmanship, curiosity for the present, and a readiness to face the new challenges of our time—values on which one can truly build. OUR SERVICES: CIVIL AND STRUCTURAL ENGINEERING • Civil Engineering • Structural Engineering • Road and Bridge Construction • Garden and Landscape Design RENOVATION AND REMODELING • Renovations • Remodeling • Concrete Cutting • Core Drilling THE TRADITIONAL MASON • Small Masonry Work • Renovations • Interior Renovations • Plastering and Gypsum Work • Drywall Construction • Exterior Arrangements • Garden Seating Areas • Core Drilling • Balcony Renovations • Waterproofing INTERIOR RENOVATIONS • Renovations • Remodeling • Concrete Cutting • Core Drilling TRANSPORT AND MACHINERY We have the necessary experience for any type of project, regardless of size, the right machines and tools, the correct know-how, and, above all, skilled professionals. We are happy to assist you from planning to billing. Do not hesitate to contact us.

Our expertise covers all masonry and plastering work, both interior and exterior. Whether it's a new single-family home, bathroom or kitchen renovation, or façade refurbishment – we are your reliable partner. • New builds, extensions, and conversions (single-family homes, multi-family houses, garages, etc.) • Conversions of existing living spaces (bathrooms, kitchens, etc.) • Renovations of living spaces and entire buildings • Room layout changes (removing existing walls and building new ones) • New construction and renovation of agricultural buildings • General masonry and plastering work inside and outside • Customer masonry work (interior and exterior) • Landscaping work (terraces, driveways, retaining walls, etc.) Whether it's a new build, renovation, or conversion of your home – we ensure optimal and on-time planning and execution of your project. The project is designed based on your individual needs and wishes. Business owner and project manager Christoph Beerli has many years of experience. He draws plans, submits building applications, handles official clarifications, and manages construction. General Contracting: Planning, execution, and supervision of high-quality construction work are core competencies of Beerli + Venzin AG: • From single-family homes to small multi-family buildings •

Bien GmbH is an architectural office based in Zizers, Switzerland , with a strong focus on multi-family housing and the careful renovation of existing buildings . The firm's work emphasizes the integration of architecture and context, combining functionality, clear design language, and long-lasting, sustainable solutions. Founded by architect Niculin Bisaz , Bien GmbH is deeply rooted in the Grisons region. The firm supports clients from concept development through planning, approval procedures, execution, and handover. Respectful use of materials, historical structures, and surroundings is central to the company’s philosophy. In the field of new construction , Bien GmbH specializes in compact, energy-efficient residential buildings , often enhanced with shared outdoor spaces such as gardens. Especially in village contexts, the office succeeds in creating harmonious ensembles through clarity and precise interventions. Each project meets high standards of comfort, design, and technology. The second pillar of the firm is the renovation of historic buildings . These are not simply restored, but transformed for contemporary use — with respect for materials, structure, and function. The results are spaces with character, depth, and long-term viability. Bien GmbH offers full services according to SIA standards : feasibility studies, preliminary designs, building permit applications, cost planning, tendering, technical planning, site supervision, and quality assurance. All projects are developed in close collaboration with local planners, engineers, and craftsmen. Projects are primarily located in the Grisons region — including Zizers, Chur, Landquart, Arosa, Davos, and the Engadine — but Bien GmbH also undertakes selected projects across German-speaking Switzerland. Clients include private homeowners, public bodies, real estate developers, and housing cooperatives. The promise is simple: to create architecture that is durable, responsible, and rooted in place.