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A Grand Mansion
Makes Its Debut

One Thousand One stands as Philadelphia’s newest and most sought-after address, connecting the city’s most-desired neighborhoods. With an unrivaled scale of world-class indoor and outdoor amenities, including a rooftop garden-inspired Pool Club, along with a Giant supermarket and curated neighborhood retail, One Thousand One emerges as a residential destination poised to leave a lasting impression on the Philadelphia skyline.

A Piece of Philadelphia

History Comes to Life

Once hailed as the “workshop of the world,” Washington Avenue thrived with manufacturing plants and factories during the industrial boom of the early 20th century. From garment production
to printing presses to confectionaries, the area was an epicenter of American industrial activity.
 After lying dormant for half a century, One Thousand One stands proudly on this historical site.

A Luxurious Address for Mansions Built by the City's Industrial High Society


With LEED Gold certification, One Thousand One sets the standard for sustainability The region’s first cutting-edge heat pump-powered hot water system High-efficiency envelope and windows Building will utilize continuous low-conductivity insulation and a continuous vapor barrier to maximize efficiency by preventing air movement and heat conduction. Triple-pane windows will offer state-of-the-art heat-loss efficiency, while the windows’ custom profile provides a classic appearance with casement operation providing a tight seal against the elements. These advanced envelope design features alone are estimated to increase total building energy efficiency by ~30% as compared to comparable buildings. Advanced energy recovery system that extracts heat energy from the building through bathroom and hallway exhaust fans to generate power before the air is released into the atmosphere. The most EV charging spots of any large-scale building in Philadelphia Energy Star-rated appliances, LEED-compliant fixtures, and LED and CFL light bulbs throughout.

The Team

Post Brothers is a nationally recognized leader in development, innovation, and sustainability. Since the company’s founding in 2006 it has developed more than 30 properties, 8,000 apartments and 700,000 sf of complimentary office and retail space in major markets, which have all thrived due to a common theme: making a level of upscale state-of-the-art living accessible at a price point which it was not previously available.

Developer and Builder

BKV Group is a holistic design firm providing a full complement
of architecture, interior design, engineering, landscape architecture, and construction administration services.
Our core belief is that regardless of project type, design has
a profound impact on the community, and our responsibility as
a multidisciplinary firm is to enhance the economic, aesthetic, social, and environmental context of the communities we
shape and design.

Architect of Record, Structural and MEP Engineer

DIGSAU is an award-winning firm practicing contemporary architecture, urbanism and environmental design.
Based in Philadelphia, the firm is recognized for expertise in providing unique, high-quality design to a diverse client group. The office operates as an open studio, and consists of a staff
of forty-nine, including twenty-seven Registered Architects.

Outdoor Amenity Design Architect

OvS is a diverse group of landscape architects, horticulturalists, designers, creative thinkers, and collaborators. We explore the ecology, culture, and history of each landscape and fuse art, science, and humanity to distill its form and amplify its function. The result is a contextually-appropriate, high-performance composition that connects people to the land.

Landscape Architect

The Lighting Practice transforms ordinary spaces into places that are extraordinary, captivating and memorable. We accomplish this through careful listening, collaboration and dedication to achieving our clients’ vision.

Lighting Designer