Lab ready.

Building Design:
15-foot slab-to-slab ceiling heights.
10' finished lab ceiling heights.
Vibration-resistant floors; 200 lbs PSF live load.
Two freight elevators (4,500/5,500 lbs capacity); loading dock.
Four-bay loading dock available 24/7.
Readily adaptable cGMP-compliant space.
12-story atrium allows for abundant natural light in laboratories.
Spaces served by multiple elevator banks.

Mechanical & HVAC:
Landlord-provided centralized exhaust system for fume hood tie-in.
Four fresh-air intakes per floor.
Abundant shaft space for exhaust/lab fresh air.
Designed to accommodate a once-through air system.
Clean compressed air and vacuum available.
New centralized exhaust system.

Electrical and Emergency Power:
Reliable primary power.
Dual electrical feeds; two PECO primary 13.2-volt services.
Ability to achieve up to 15W PSF to accommodate lab requirements.
1,000 kVA of back-up power available.

Plumbing and Fire Protection:
Ability to create waste treatment and neutralization.
Central chilled water and steam.
Reliable and sufficient domestic water pressure.
Laboratory neutralization available.
Fully sprinklered with fire alarm.
Piping chases nearby for flexibility.
Center core bathrooms.

Proof of concept.
Imvax, an emerging oncology leader revolutionizing immunotherapy for patients of Glioblastoma (GBM), relocated their headquarters to The Curtis in 2019, leasing 16,000 square feet of office and lab space. Imvax was founded in 2015 by Dr. David Andrews, a Thomas Jefferson University Hospital neurosurgeon; Craig Hooper, a professor in the department of cancer biology at Jefferson; Pete Corr, a former Pfizer executive; and journalist-turned-entrepreneur Arthur W. Howe IV. The company has raised $152 million from investors since its inception, including $112 million via a venture capital financing led by HP Wild Holding in July 2020. In February 2021, Imvax was awarded a $2 million grant by RPAC to support construction of a 21,066-square-foot cGMP world-class manufacturing and lab facility at The Curtis.

“This space will be a showpiece to demonstrate for our investors, partners, employees, and stakeholders that Imvax lives at the forefront of innovation,” says Imvax COO Sean Hemingway. “Our location at The Curtis will help Imvax attract and retain the best talent and this expansion gives us the capability to meet our future growth needs. We are pleased how our relationship with Keystone has contributed to our trajectory.”

On the heels of Imvax’s expansion, Keystone executed leases with Vivodyne and Aro Biotherapeutics.

Building culture.

The “Dream Garden” mural, created in 1916 by Louis C. Tiffany using hand-blown glass, is permanently displayed in the Sixth Street lobby. The mural was designed to engage and inspire.

The legendary 12-story Constellation Atrium is one of the great public spaces in the city and available for private events, accommodating standing receptions for 50 to 1,000 guests and seated dinners for 25 to 400 guests.

On-site food options include a full-service café and New York restaurant institution, P.J. Clarke’s.

On-site lifestyle programming includes yoga, art exhibits, educational presentations, and more.

On-site covered parking garage with over 300 valet spaces.

24/7 building access with on-site security.

An amenity suite called “The Post” offers a modern backdrop for work, relaxation, and connecting with colleagues.

On-site daycare (Busy Bee Learning Center) and early education (Germantown Friends School).

What's old is new again.

When The Curtis was first built, it stood for possibility—it promised an exciting future for industry, technology, and the arts. Amidst the whir of typewriters and printing presses, stories were created and shared from under a single roof. For over 50 years, The Curtis occupied a central role in American cultural life. In 1910, it was where one man, Cyrus Curtis, pictured the future of his fledgling publishing company. And as he constructed the impressive headquarters, it was where he built a legacy from the ground up.

Beloved publications like The Saturday Evening Post, The Country Gentleman, and the Ladies' Home Journal featured voices that defined a generation, including Louisa May Alcott, Mark Twain, Rudyard Kipling, and Jack London. As iconic as the words, was the cover art. Curtis’ publications were the first to rely on color illustrations and the first to change covers every month. Norman Rockwell, The Post’s most famous illustrator, captured the triumphs and foibles of the common man. His works are as popular today as they were in decades past.