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Valley Forge Square I King Of Prussia, PA 19406

1,063 - 74,369 SF of Office Space Available

Virtual Tour

Park Highlights

  • Attractive multi-building office campus in a vibrant Philadelphia suburb minutes to shopping, dining, entertainment, and hospitality options.
  • Well-maintained Class A office buildings offering turnkey and customizable suites ranging from 1,063 square feet to 29,890 square feet.
  • Perfectly positioned within a five-minute drive of King of Prussia Mall, the largest mall in the nation with over 450 stores and 30 eateries.
  • Enjoy an effortless commute with a five-minute drive to Pennsylvania Tnpk, I-76, and Routes 202 and 422, plus a five-minute walk to bus stops.

PARK FACTS

Park Type Office Park
Features
Atrium
  • Bus Route, Freeway Visibility

all available spaces(11)

Display Rent as

Valley Forge Square I
475 Allendale Rd - Valley Forge Square 1
4,166 - 38,548 SF | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Building Type/Class
Office/B
Year Built/Renovated
1982/2012
Building Size
106,782 SF
Number of Floors
2
Typical Floor Size
53,391 SF
Parking
250 Spaces
  • Space
  • Size
  • Term
  • Rent
  • Space Use
  • Condition
  • Available
  • 1st Floor, Ste 100
  • 29,890 SF
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
  • Office
  • -
  • Now
  • Fits 86 - 276 People
  • Secure card-key building access
  • Space is in Excellent Condition
  • Walking distance to hotels on adjacent properties
  • 2nd Floor, Ste 201
  • 4,492 SF
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
  • Office
  • -
  • Now
  • Fits 12 - 36 People
  • Secure card-key building access
  • Space is in Excellent Condition
  • Walking distance to hotels on adjacent properties
  • 2nd Floor, Ste 205
  • 4,166 SF
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
  • Office
  • -
  • 30 Days
  • Fits 11 - 34 People
  • Secure card-key building access
  • Space is in Excellent Condition
  • Walking distance to hotels on adjacent properties
Space Size Term Rent Space Use Condition Available
1st Floor, Ste 100 29,890 SF Negotiable Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application Office - Now
2nd Floor, Ste 201 4,492 SF Negotiable Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application Office - Now
2nd Floor, Ste 205 4,166 SF Negotiable Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application Office - 30 Days
Valley Forge Square I
475 Allendale Rd - Valley Forge Square 1
4,166 - 38,548 SF | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Building Type/Class
Office/B
Year Built/Renovated
1982/2012
Building Size
106,782 SF
Number of Floors
2
Typical Floor Size
53,391 SF
Parking
250 Spaces

475 Allendale Rd - 1st Floor - Ste 100

Size
29,890 SF
Term
Negotiable
Rent
Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Space Use
Office
Condition
-
Available
Now

475 Allendale Rd - 2nd Floor - Ste 201

Size
4,492 SF
Term
Negotiable
Rent
Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Space Use
Office
Condition
-
Available
Now

475 Allendale Rd - 2nd Floor - Ste 205

Size
4,166 SF
Term
Negotiable
Rent
Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Space Use
Office
Condition
-
Available
30 Days
Valley Forge Square I
680 American Ave - Valley Forge Square 1
6,732 - 17,845 SF | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Building Type/Class
Office/A
Year Built
1989
Building Size
68,850 SF
Number of Floors
3
Typical Floor Size
22,950 SF
Parking
100 Spaces
  • Space
  • Size
  • Term
  • Rent
  • Space Use
  • Condition
  • Available
  • 1st Floor, Ste 100
  • 6,732 SF
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
  • Office
  • -
  • Now
  • Fits 17 - 54 People
  • Secure card-key building access
  • Space is in Excellent Condition
  • Walking distance to hotels on adjacent properties
  • 3rd Floor, Ste 300
  • 11,113 SF
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
  • Office
  • -
  • Now
  • Fits 28 - 89 People
  • Secure card-key building access
  • Space is in Excellent Condition
  • Walking distance to hotels on adjacent properties
Space Size Term Rent Space Use Condition Available
1st Floor, Ste 100 6,732 SF Negotiable Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application Office - Now
3rd Floor, Ste 300 11,113 SF Negotiable Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application Office - Now
Valley Forge Square I
680 American Ave - Valley Forge Square 1
6,732 - 17,845 SF | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Building Type/Class
Office/A
Year Built
1989
Building Size
68,850 SF
Number of Floors
3
Typical Floor Size
22,950 SF
Parking
100 Spaces

680 American Ave - 1st Floor - Ste 100

Size
6,732 SF
Term
Negotiable
Rent
Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Space Use
Office
Condition
-
Available
Now

680 American Ave - 3rd Floor - Ste 300

Size
11,113 SF
Term
Negotiable
Rent
Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Space Use
Office
Condition
-
Available
Now
Valley Forge Square I
660 American Ave - Valley Forge Square 1
1,063 - 16,876 SF | Multiple Rents Multiple Rents Multiple Rents Multiple Rents Multiple Rents Multiple Rents
Building Type/Class
Office/A
Year Built
1989
Building Size
68,850 SF
Number of Floors
3
Typical Floor Size
22,950 SF
Parking
4/1,000 SF
  • Space
  • Size
  • Term
  • Rent
  • Space Use
  • Condition
  • Available
  • 1st Floor, Ste 101
  • 4,750 SF
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
  • Office
  • Full Build-Out
  • Now
  • Fully Built-Out as Standard Office
  • Space is in Excellent Condition
  • Walking distance to hotels on adjacent properties
  • Fits 12 - 38 People
  • Secure card-key building access
  • 1st Floor, Ste 102
  • 3,101 SF
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
  • Office
  • -
  • 01/01/2025
  • Mostly Open Floor Plan Layout
  • Fits 8 - 25 People
  • 1st Floor, Ste 104
  • 2,183 SF
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
  • Office
  • -
  • 01/01/2025
  • Fits 6 - 18 People
  • 1st Floor, Ste 107
  • 1,063 SF
  • Negotiable
  • £15.30 /SF/PA £1.27 /SF/MO £164.64 /m²/PA £13.72 /m²/MO £16,260 /PA £1,355 /MO
  • Office
  • Partial Build-Out
  • Now
  • Listed lease rate plus proportional share of electrical cost
  • Space is in Excellent Condition
  • Walking distance to hotels on adjacent properties
  • Fits 3 - 9 People
  • Secure card-key building access
  • 3rd Floor, Ste 304
  • 5,779 SF
  • Negotiable
  • £15.30 /SF/PA £1.27 /SF/MO £164.64 /m²/PA £13.72 /m²/MO £88,396 /PA £7,366 /MO
  • Office
  • Partial Build-Out
  • Now
  • Listed lease rate plus proportional share of electrical cost
  • Fits 15 - 47 People
  • Secure card-key building access
  • Partially Built-Out as Standard Office
  • Space is in Excellent Condition
  • Walking distance to hotels on adjacent properties
Space Size Term Rent Space Use Condition Available
1st Floor, Ste 101 4,750 SF Negotiable Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application Office Full Build-Out Now
1st Floor, Ste 102 3,101 SF Negotiable Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application Office - 01/01/2025
1st Floor, Ste 104 2,183 SF Negotiable Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application Office - 01/01/2025
1st Floor, Ste 107 1,063 SF Negotiable £15.30 /SF/PA £1.27 /SF/MO £164.64 /m²/PA £13.72 /m²/MO £16,260 /PA £1,355 /MO Office Partial Build-Out Now
3rd Floor, Ste 304 5,779 SF Negotiable £15.30 /SF/PA £1.27 /SF/MO £164.64 /m²/PA £13.72 /m²/MO £88,396 /PA £7,366 /MO Office Partial Build-Out Now
Valley Forge Square I
660 American Ave - Valley Forge Square 1
1,063 - 16,876 SF | Multiple Rents Multiple Rents Multiple Rents Multiple Rents Multiple Rents Multiple Rents
Building Type/Class
Office/A
Year Built
1989
Building Size
68,850 SF
Number of Floors
3
Typical Floor Size
22,950 SF
Parking
4/1,000 SF

660 American Ave - 1st Floor - Ste 101

Size
4,750 SF
Term
Negotiable
Rent
Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Space Use
Office
Condition
Full Build-Out
Available
Now

660 American Ave - 1st Floor - Ste 102

Size
3,101 SF
Term
Negotiable
Rent
Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Space Use
Office
Condition
-
Available
01/01/2025

660 American Ave - 1st Floor - Ste 104

Size
2,183 SF
Term
Negotiable
Rent
Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Space Use
Office
Condition
-
Available
01/01/2025

660 American Ave - 1st Floor - Ste 107

Size
1,063 SF
Term
Negotiable
Rent
£15.30 /SF/PA £1.27 /SF/MO £164.64 /m²/PA £13.72 /m²/MO £16,260 /PA £1,355 /MO
Space Use
Office
Condition
Partial Build-Out
Available
Now

660 American Ave - 3rd Floor - Ste 304

Size
5,779 SF
Term
Negotiable
Rent
£15.30 /SF/PA £1.27 /SF/MO £164.64 /m²/PA £13.72 /m²/MO £88,396 /PA £7,366 /MO
Space Use
Office
Condition
Partial Build-Out
Available
Now
Valley Forge Square I
700 American Ave - Valley Forge Square 1
1,100 SF | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Building Type/Class
Office/A
Year Built
1990
Building Size
58,000 SF
Number of Floors
3
Typical Floor Size
19,333 SF
Parking
100 Spaces
  • Space
  • Size
  • Term
  • Rent
  • Space Use
  • Condition
  • Available
  • 2nd Floor, Ste 204
  • 1,100 SF
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
  • Office
  • -
  • Now
  • Fits 3 - 9 People
  • Secure card-key building access
  • Space is in Excellent Condition
  • Walking distance to hotels on adjacent properties
Space Size Term Rent Space Use Condition Available
2nd Floor, Ste 204 1,100 SF Negotiable Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application Office - Now
Valley Forge Square I
700 American Ave - Valley Forge Square 1
1,100 SF | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Building Type/Class
Office/A
Year Built
1990
Building Size
58,000 SF
Number of Floors
3
Typical Floor Size
19,333 SF
Parking
100 Spaces

700 American Ave - 2nd Floor - Ste 204

Size
1,100 SF
Term
Negotiable
Rent
Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application
Space Use
Office
Condition
-
Available
Now

475 Allendale Rd - 1st Floor - Ste 100

Size 29,890 SF
Term Negotiable
Rent Upon Application
Space Use Office
Condition -
Available Now

  • Fits 86 - 276 People
  • Space is in Excellent Condition
  • Secure card-key building access
  • Walking distance to hotels on adjacent properties

475 Allendale Rd - 2nd Floor - Ste 201

Size 4,492 SF
Term Negotiable
Rent Upon Application
Space Use Office
Condition -
Available Now

  • Fits 12 - 36 People
  • Space is in Excellent Condition
  • Secure card-key building access
  • Walking distance to hotels on adjacent properties

475 Allendale Rd - 2nd Floor - Ste 205

Size 4,166 SF
Term Negotiable
Rent Upon Application
Space Use Office
Condition -
Available 30 Days

  • Fits 11 - 34 People
  • Space is in Excellent Condition
  • Secure card-key building access
  • Walking distance to hotels on adjacent properties

680 American Ave - 1st Floor - Ste 100

Size 6,732 SF
Term Negotiable
Rent Upon Application
Space Use Office
Condition -
Available Now

  • Fits 17 - 54 People
  • Space is in Excellent Condition
  • Secure card-key building access
  • Walking distance to hotels on adjacent properties

680 American Ave - 3rd Floor - Ste 300

Size 11,113 SF
Term Negotiable
Rent Upon Application
Space Use Office
Condition -
Available Now

  • Fits 28 - 89 People
  • Space is in Excellent Condition
  • Secure card-key building access
  • Walking distance to hotels on adjacent properties

660 American Ave - 1st Floor - Ste 101

Size 4,750 SF
Term Negotiable
Rent Upon Application
Space Use Office
Condition Full Build-Out
Available Now

  • Fully Built-Out as Standard Office
  • Fits 12 - 38 People
  • Space is in Excellent Condition
  • Secure card-key building access
  • Walking distance to hotels on adjacent properties

660 American Ave - 1st Floor - Ste 102

Size 3,101 SF
Term Negotiable
Rent Upon Application
Space Use Office
Condition -
Available 01/01/2025

  • Mostly Open Floor Plan Layout
  • Fits 8 - 25 People

660 American Ave - 1st Floor - Ste 104

Size 2,183 SF
Term Negotiable
Rent Upon Application
Space Use Office
Condition -
Available 01/01/2025

  • Fits 6 - 18 People

660 American Ave - 1st Floor - Ste 107

Size 1,063 SF
Term Negotiable
Rent £15.30 /SF/PA
Space Use Office
Condition Partial Build-Out
Available Now

  • Listed lease rate plus proportional share of electrical cost
  • Fits 3 - 9 People
  • Space is in Excellent Condition
  • Secure card-key building access
  • Walking distance to hotels on adjacent properties

660 American Ave - 3rd Floor - Ste 304

Size 5,779 SF
Term Negotiable
Rent £15.30 /SF/PA
Space Use Office
Condition Partial Build-Out
Available Now

  • Listed lease rate plus proportional share of electrical cost
  • Partially Built-Out as Standard Office
  • Fits 15 - 47 People
  • Space is in Excellent Condition
  • Secure card-key building access
  • Walking distance to hotels on adjacent properties

700 American Ave - 2nd Floor - Ste 204

Size 1,100 SF
Term Negotiable
Rent Upon Application
Space Use Office
Condition -
Available Now

  • Fits 3 - 9 People
  • Space is in Excellent Condition
  • Secure card-key building access
  • Walking distance to hotels on adjacent properties

Park Overview

Valley Forge Square I is a five-building office campus located in King of Prussia among office space, residential neighborhoods, and sought-after amenities. “Twin” buildings 660 and 680 American Avenue are Class A buildings that feature functional and inviting architectural details. The Meeting House at 550 American Avenue serves as the headquarters of the dedicated ownership, Westover Companies. With over 26,000 square feet of rentable office space, 550 American Avenue is an ideal business destination. 475 Allendale Road is a 103,424-square-foot Class A building that boasts meticulously landscaped grounds and a welcoming entrance. 700 American Avenue is a Class A building sitting at 58,000 square feet that brings architecture and function to the forefront of business practices. Just minutes from Routes 202 and 422, the Pennsylvania Turnpike, and I-76, Valley Forge Square I is an ideal location. Located less than a mile from the King of Prussia Mall and the Valley Forge Casino, Valley Forge Square I is adjacent to hotel accommodations at the Hyatt Place Philadelphia/King of Prussia and the Extended Stay America Philadelphia/King of Prussia. In addition, Valley Forge Square I is within walking distance of SEPTA bus routes and the King of Prussia Connector shuttle.

  • Atrium
  • Bus Route
  • Freeway Visibility

About King of Prussia & Wayne

Bordering the expansive walking trails at Valley Forge National Park, King of Prussia and neighboring Wayne are two of the most sought after destinations for office tenants in Philadelphia's wealthy western suburbs.

The region's key commuter highways, including the Pennsylvania Turnpike, I-76, and Route 202, all intersect within the area. This superior highway access allows local office tenants to attract employees from nearly all corners of Southeastern Pennsylvania. Major technology, defense, healthcare, and financial tenants, including Fiserv, Vanguard, Vertex, and Lockheed Martin, all maintain large offices in King of Prussia and Wayne.

Meanwhile, the local Radnor Township and Upper Merion School Districts are among the best performing in the country and have helped attract a skilled workforce to the area.

King of Prussia Mall is the second-largest Mall in the U.S. by square footage and offers an exceptional array of retail options for local office tenants. The award-winning Village at Valley Forge development also consists of a diverse range of luxury apartments. Over 15 bars, cafes, and restaurants all connect via walking paths and help attract and retain a growing number of young professionals.

About the Owner

Read More
  • Listing ID: 22442561

  • Date on Market: 04/12/2024

  • Last Updated:

  • Address: 660 American Ave, King Of Prussia, PA 19406

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