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Luxury Apartments in King of Prussia, PA

Our Mission: Exceptional homes in the greater philadelphia area

251 DeKalb offers an unprecedented level of luxury in the Philadelphia area. Situated on 26 rolling acres, our King of Prussia apartments offer jaw-dropping views of Valley Forge. Our community is also the most pet-friendly. Large dogs and all breeds welcome! Celebrated architect Stephen Varenhorst’s modernist masterpiece, 251 DeKalb is a stunning landmark on the Philadelphia Main Line. Schedule your tour today!

"It was clear the residences needed to take full advantage of the spaciousness, incredible views and light. We achieved a design consistent with the property's modernist aesthetic that represents the cutting-edge of functionality."

STEPHEN VARENHORST - VARENHORST ARCHITECTS

Refined Luxury

Experience 251 DeKalb

Each apartment home boasts stunning custom finishes, expansive space, and natural light. Impeccably designed with artistry and precision, every residence is tailored to maximize contemporary living.

At 251 DeKalb, we’re passionate about pets! We welcome dogs of all breeds and sizes and have designed a community where they feel just as at home as you do. Enjoy our spacious apartments, two zoomie-ready Bark Parks with agility equipment, an Evolution Dog Wash for those messy playdays, and daily restocked Milk Bones to keep those tails wagging.

Nestled in the heart of vibrant and dynamic King of Prussia, residents enjoy proximity to award-winning schools, an abundance of dining, shopping, and entertainment options, as well as seamless, convenient access to major highways and mass transit.

Unparalled Offerings

Resort-caliber services and amenities at home.

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Visionary Style

Our spacious, one to three bedroom apartment homes at the highest point in KOP.

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Life By Design

Luxury in every carefully crafted detail.

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Excellence Realized

Awards & Recognition

Pennsylvania Apartment Association Keystone Awards

2025 Winner:

2023 & 2024 Winner: Winner:

National Association of Landscape Professionals

2019 Winner:

In Their Own Words

Reviews

    
 
 
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   Eric A. Cheavers 
 8 September 2026
 
 
  Krystle at 251 Dekalb is a jack of all trades and literally the best… she is always knowledgeable about anything I ask for and makes sure if I have a concern it is always passed along to the right person. I’ve been having issues with bugs in my apartment and weekly she makes sure the exterminator comes by. Today she helped me track down my Amazon pkg. I made contact with Amazon to handle the problem. Talk about going above and beyond for the residents!
  
 
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   Mingyuan Sun 
 31 August 2026
 
 
  I had a great experience living at 251 DeKalb, and I especially want to give a huge shoutout to Stephen and the management team. I actually moved out quite a while ago and now live in California, but I recently made the mistake of having a valuable package shipped to my old address. I reached out to the leasing office for help, and Stephen went above and beyond. He took the time to look for the package, found it, kept it safe in his office, and even offered to drop it off at UPS on his way home after I sent him a prepaid label. What impressed me most is that I’m not even a current resident anymore, yet he was still incredibly responsive, patient, and willing to help. He absolutely didn’t have to do all of that, and it says a lot about the kind of person he is and the level of care the management team provides. I really appreciated my time living at 251 DeKalb, and this experience reminded me why. Thank you again, Stephen!
  
 
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   Miles Hamilton 
 15 August 2026
 
 
  Came into the office and the staff was great. I was extremely impressed by Mecca who not only greeted me as soon as I came in with a friendly attitude but also she  had  patience when answering all of my concerns.
  
 
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   Obadiah Anderson 
 11 August 2026
 
 
  Mecca is great!!!
  
 
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   Obadiah Anderson 
 11 August 2026
 
 
  Mecca is great!!!!
  
 
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   Danielle Ashley 
 22 July 2026
 
 
  Emily is amazing when it comes to handling any of your Maintance needs. She always follows up to make sure my request have been completed, follows up on things and is extremely kind and helpful. Stephen in the office is very quick to reply to all inquiry's. Pool is wonderful and the space is very nice. The only downfall is not being able to control your own heat/air-conditioning and other people’s animals going to the bathroom in the elevator or common areas and hidden fees. Other then that they keep the areas clean, they reply quickly and have really stepped it up in terms of Maintance
  
 
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   Sohini Nandi Das 
 22 June 2026
 
 
  I’m a current resident & as of now my experience is good living here !
  
 
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   Maurice Williams 
 13 June 2026
 
 
  Mecca was amazing great showings informative
  
 
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   Bryan T. Jeffries 
 13 June 2026
 
 
  Mecca was amazing!
  
 
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   Anthony V 
 13 June 2026
 
 
  Mecca was amazing! The place is beautiful but she is the true gem!