With environmental concerns and the impact of climate change at the forefront of people’s minds worldwide, there is growing demand for buildings that meet or surpass energy-saving standards set by organizations such as the German-based Passive House Institute or LEED. Structures built with sustainable materials like FSC-certified wood or recycled materials are more sought-after than ever before. As we celebrate Earth Day, it’s worth taking a moment to highlight some of the innovative developments that are leading the charge in sustainable architecture and design. Below, we’ve rounded up a few examples of such projects.
Four Seasons Private Residences Lake Austin
Nestled atop a secluded hill overlooking a picturesque 90-degree bend in Lake Austin, Four Seasons Private Residences Lake Austin provides an unparalleled sense of privacy and natural beauty. The community’s expansive 145-acre grounds feature breathtaking backdrops and an elevated altitude. The developers of this project are committed to land stewardship, implementing a new city-approved plan that includes 90 acres of preserve and parkland, a scenic overlook turned public park, and the preservation of over 2,000 feet of shoreline from development.
These contemporary homes are designed for the utmost comfort, convenience, and privacy, featuring refined materiality, timeless design, and precise craftsmanship. Lissoni & Partners, known for their attention to detail, have curated a selection of interior palettes that emphasize natural continuity between the resort environment and residential experience, allowing for thoughtful customization. In addition to the exceptional residences, the community boasts access to exclusive amenities, including the Lake Clubhouse and Private Marina, offering a variety of boats for lakeside leisure. The Upper Clubhouse merges seamlessly with the lake horizon, featuring an infinity-edge pool, lounge chairs, and private cabanas. The Theater provides an immersive viewing experience for large-scale gatherings, while the Indoor Sports Club, Spa & Wellness Club spans over 76,000 sqft and offers a variety of athletic pursuits and relaxation. These exceptional amenities are managed by Four Seasons, the gold standard in luxury hospitality.
Charlotte of the Upper West Side
Charlotte of the Upper West Side is a landmark achievement in sustainable architecture and design, representing the pinnacle of luxury living with a conscience. This exceptional condominium building in New York City is considered to be the most sustainable of its kind. Designed by the renowned BKSK Architects, it is engineered to meet the rigorous standards of the German-based Passive House Institute and inspired by the needs and values of a new generation.

The state-of-the-art building is designed to enhance the well-being, safety, and comfort of its residents, and has recently become the first condominium in NYC to receive certification from the Passive House Institute. With just seven full-floor homes, including a duplex penthouse residence with multiple terraces and a garden residence with expansive private outdoor space, every detail has been carefully considered to ensure maximum sustainability. Each home comprises four bedrooms with ensuite baths, including a separate master bedroom wing, and a spacious 20 x 47-foot kitchen-living-dining room with operable floor-to-ceiling windows that flood the space with natural light. Every residence at Charlotte of the Upper West Side is crafted using sustainably sourced materials. For instance, all wood flooring, doors, window frames, wood trims, and millwork, including custom Henrybuilt kitchens and bathroom vanities, are certified by the Forest Stewardship Council (FSC). Furthermore, each home boasts its own Swiss-engineered energy recovery ventilation (ERV) system, delivering fresh filtered outside air to each room while exchanging stale indoor air with fresh outdoor air. Robust insulation and airtight seals minimize air leaks and drafts, ensuring consistent comfort and quiet rooms while significantly reducing energy consumption. Residences start at $9,950,000.
547 West 47th Street
547 West 47th Street is a testament to the possibilities of upcycling and a reminder that even construction waste can be repurposed to create something beautiful and functional. The move-in-ready 12-story condominium offers 219 studio to two-bedroom residences and over 30,000 square feet of meticulously curated amenities in the vibrant neighborhood of Hell’s Kitchen. The most remarkable feature its façade is its robust brickwork base, which was created using an astounding 573,200 pounds of upcycled industrial and demolition waste. The design of the building reflects the industrial heritage of the area with a truffle-colored hue and oversized warehouse-inspired windows that frame the loft-style homes within.

The intricate brickwork is the result of a yearlong collaboration between Concrete, the critically acclaimed Dutch-based design firm responsible for the architecture and interiors of 547 West 47th Street, and StoneCycling, an Amsterdam-based firm dedicated to sustainable manufacturing of upcycled bricks. The building’s brick matrix is a proprietary blend of recovered construction debris and raw clay quarried in the Netherlands. To create the unique look of the building, a total of 42 different brick shapes and sizes were required, and each piece was individually brushed by hand with a subtly reflective glass glaze before firing in a century-old factory. The stunning brickwork continues into the building’s elaborate lobby, with brick cladding made from an additional 4,167 pounds of upcycled construction materials. This attention to detail is not only visually striking, but it also speaks to the building’s commitment to sustainability, making it an excellent example of environmentally conscious architecture.
110 North 1st Street
110 North 1st Street, located in Brooklyn’s desirable Williamsburg neighborhood, is an exquisite luxury development that offers one- to four-bedroom condominiums and an exceptional collection of amenities. Developed by EDRE Development in collaboration with the award-winning design practice DXA Studio, this striking seven-story building with 38 units is transforming North 1st Street into a premier residential destination.
The residences at 110 North 1st are thoughtfully designed to prioritize health and wellness, and the development is built with an eco-friendly consciousness. Using rainscreen technology, the property’s ventilated façade allows the building to breathe, ensuring that it is highly energy efficient and long-lasting. The building is electric-only, with highly efficient HVAC units and induction cooktops replacing gas, further enhancing its sustainability credentials. All of the residences at 110 North 1st offer oversized windows and terraces, emphasizing the importance of fresh air and natural light. The interiors boast a bright material palette, with wide plank white oak floors, ceramic and marble tiles, and counters. The range of residences includes garden homes with outdoor space, two-to-three-bedroom residences, floor-through homes, and penthouses, each offering a unique living experience. The focus on wellness is evident throughout 110 North 1st, with a full floor of amenities that includes a fully equipped gym, a full-service spa, and a dedicated children’s room for making and creating. The spa features a salt meditation room, a sauna, hot tub, and plunge pool, all designed to help residents relax and decompress.
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