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Our clients at 17 Cornelia Street owned a unique duplex-style residence in the heart of Greenwich Village, consisting of a first-floor apartment and a cellar level connected by an existing spiral staircase. While technically functional, the stair was narrow, steep, and more like a ladder than a true transition between levels. As they began planning for a growing family, this configuration was less practical than ever. Beyond the staircase, the home lacked a genuine sense of connection between floors, as the cellar felt isolated rather than integrated, limiting usability despite such a generous footprint.
That’s when they turned to Gallery. What began as a staircase-focused inquiry evolved into a full design-build renovation of both levels, led from architectural drawings through construction. Their goal was a thoughtful, permanent solution that would not only replace the staircase, but reimagine the residence as a cohesive, family-oriented duplex with safe circulation, improved flow, and elevated design.
To start the project, we replaced the existing spiral staircase with a wide, code-compliant stair designed for everyday usability and long-term family use. Beyond the UX update, we relocated the staircase to a more central position to better integrate the two levels, improving flow, accessibility, and design clarity throughout the home.
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The first-floor renovation focused on redefining flow and functionality while elevating the apartment’s traditional character. We reconfigured the layout to introduce a more intentional entry area, enclosing previously open living space to add privacy and definition. The kitchen was fully renovated with custom millwork, richly detailed cabinetry interiors, integrated spice and oil niches, and a French-style range selected to complement the home’s English-inspired aesthetic. The primary bedroom and bathroom were also upgraded with carefully layered finishes, including a custom vanity color-matched to the wallpaper, Waterworks subway tile, marble flooring, plus a marble deck with repurposed cut-outs used for shower niches.
When your family is growing, your home needs to be growing too. Thankfully, we were able to help turn our clients’ underutilized cellar into a fully reimagined functional extension of their home. By reframing the entire lower level, we transformed the space into a series of intentional, livable zones designed to support their family routine. The renovation introduced a traditionally styled powder room with terracotta flooring, alongside a flexible children’s area thoughtfully planned to accommodate two kids, complete with built-in nooks and dual closets. Additional zones were created for fitness, study or dance, and casual living, while new walk-in closets and concealed wall cavities significantly increased storage. Through cohesive finishes, layered lighting, and the strategic placement of the new staircase, the cellar now feels seamlessly connected to the main residence rather than an afterthought below.
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We're here to successfully guide your condo or co-op renovation in NYC. For timely inspiration, consider our latest piece, Condo Renovation Ideas 2026. View our portfolio of co-op & condo renovation before and afters, learn more about Gallery, or simply contact us today.
We are an award-winning design-build firm in New York City with a full-service approach to residential renovations in Manhattan and Brooklyn that includes everything from interior design and architectural services to facilitating building management and board approval, to construction and construction management. We’re experts in renovating pre-war homes, kitchens, bathrooms, flooring, sourcing custom pieces, building entirely new rooms (or even balconies), millwork, and all that falls in between. Let Gallery bring your dream home to life.



























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