Located on one of Park Slope's most sought-after landmarked blocks, 535 1st Street is a five-story limestone townhouse that seamlessly blends modern luxury with timeless architecture. Designed by the award-winning Leroy Street Studio and featured in Architectural Digest, this exceptional home offers expansive living spaces, state-of-the-art amenities, and meticulously crafted details throughout. The home's striking design maximizes light and space, with soaring ceilings and floor-to-ceiling glass walls that open to a professionally landscaped garden. The garden level features an impressive chef's kitchen with an 18-foot marble island, custom cabinetry, and top-tier Miele, Wolf, and SubZero appliances. A sunken den with built-in oak bookshelves, a gas fireplace, and direct access to the garden makes for a perfect entertaining space. The parlor level boasts a dramatic living room with grand proportions, custom lighting for art display, and a second gas fireplace. An open library with glass walls creates a seamless connection to the outdoors, while a private screening room offers a high-end cinematic experience. The entire third floor is dedicated to the primary suite, complete with a sunlit bedroom, custom closets, a walk-in dressing room with built-in refrigeration, and a private terrace. The en-suite bath is a spa-like retreat with Calacatta Paonazzo marble and a stunning mosaic installation by artist Summer Wheat. The fourth floor includes a spacious en-suite bedroom with cathedral windows, plus two additional bedrooms sharing a large bathroom. The penthouse level offers a serene sitting area, a built-in desk, a custom bar, and retractable glass walls leading to two terraces with sweeping Brooklyn views. Designed with meticulous attention to detail over a four-year period, this residence is a true turnkey masterpiece in the heart of Park Slope.