About Us
Founded in 2015, Rosalia Sanni Design is an award-winning Greenwich-based landscape design studio known for creating outdoor spaces that feel personal, welcoming, and beautifully aligned with the way people live. For over a decade, the studio has built its reputation on the belief that meaningful landscapes begin with listening—observing how people move through a site and how architecture and nature meet.

Each project is shaped through open dialogue and collaboration, allowing RSD to uncover the nuances that make a landscape feel truly lived-in—helping clients discover their own “outside” through spaces that reflect their routines, interests, and ways of gathering. The result is work that balances structure and softness, heritage and innovation, the built and the natural—spaces that are warm, functional, and highly livable, while also refined, elevated, and deeply rooted in place.

Influenced by a wide range of experiences, the studio embraces both tradition and forward-looking ideas. Their designs respond thoughtfully to context, highlighting subtle connections between materiality, light, planting, and the rhythms of the outdoors.

RSD has been featured in Veranda, Luxe Interiors + Design, Connecticut Design Guide, Design & Decor, New England Home and Cottages & Gardens, and has been recognized with honors including the Luxe Gold List, At-Home A-List Awards, Innovation in Design Awards, and Houzz Best of Design Service distinctions.

The firm serves discerning clients throughout Connecticut and New York State, with residential projects across Fairfield, Westchester, and Litchfield Counties, as well as select destinations beyond the region.

Services
Rosalia Sanni Design offers a comprehensive scope of landscape design services tailored to help residential clients realize a clear, cohesive vision for their properties. We collaborate closely with architects, interior designers, engineers, environmental specialists, contractors, and artisans to ensure every element is seamlessly integrated.
Our work spans every stage of the process—from initial site analysis and concept development through design presentations, permitting, construction documentation, budgeting, and implementation—continuing beyond completion to ensure enduring quality and beauty.

Our Team

Rosalia Sanni

Takes an approach that strikes a balance between architecture, nature and people in order to create a meaningful landscape for her clients. Having lived and traveled in various cities in Europe and the U.S., she draws inspiration from diverse experiences and continually keeps her mind open to new ways of thinking that can influence her. Rosalia's work balances respect for tradition with an eye towards the future, and seamlessly integrates into modern day life.  Her landscapes relate to the context of the setting, as they explore the connection of the manmade with nature.  

After 15 years of designing landscapes for visionary firms, Rosalia launched out on her own in 2014.  Rosalia completed her studies in landscape design at the New York Botanical Garden, after earning a B.A. at Tufts University. She also studied landscape architecture at UC Berkeley, and design & art history at Universitá Cattolica Del Sacro Cuore in Milan, Italy.  Prior to becoming a landscape designer, Rosalia led a successful career in advertising.

When not running her business, Rosalia donates her skills and enthusiasm to helping her community connect with nature and the outside world. She has served on the Board of Directors for Greenwich Community Garden, led initiatives for Greenwich Green Schools, & provides internships for local high school & college students. She is a current member of the Design Leadership Network/DLN, Association of Professional Landscape Designers/APLD, and Institute of Classical Architecture & Art/ICAA.

Lina Cangrejo

Holds a bachelor's degree in architecture from the Pontifical Xavierian University in Bogota, Colombia and has 9+ years of professional experience across the architecture, real estate development and landscape architectural fields. She has been working with RSD since 2018, over which time she has enjoyed deepening her focus and knowledge of landscape design. Previously, Lina held several roles in related fields, first as an architectural designer working on both urban and residential projects at a Colombian architectural firm and then as a real estate professional working on large-scale urban redevelopment projects including basic project design and feasibility, zoning regulation analysis and the property acquisition process.  Lina is passionate about both art and nature and enjoys spending time outside and being creative. With RSD, Lina is especially passionate about applying her understanding of both the built environment and landscapes to discover new design ideas, approaches and perspectives that better connect and harmonize the relationship between the indoor and outdoor experiences.

Stephanie Rustici

received her Masters in Landscape Architecture at The Bernard and Anne Spitzer School of Architecture at The City College of New York. Stephanie joined Rosalia Sanni Design in 2020. Over the previous 7 years, she worked at various landscape design firms in New York City and Greenwich, CT.  She enjoys spending time outdoors with her family and traveling. She is inspired by the balance and flux of nature, which she uses to fuel the creativity of her designs. At RSD, Stephanie has a special interest in incorporating native plants into landscape plans, designing for families, as well as upholding the most current construction practices and processes.