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660 American Ave
King Of Prussia, PA 19406 Valley Forge/King of Prussia

$19.50 USD/SF/YR

Unknown For Lease • 797+ SF

Property Details

Property Type Unknown
Year Built 1989

40 Transit Score

39 Walk Score

13 Spaces Available

Name	Space Use	Size	Rent
1st Floor Ste 100	Office	6,732 SF	Rate Upon Request
Twin” buildings 660 and 680 American Avenue are Class “A” buildings that feature functional and inviting architectural details. 660 and 680 American Avenue are located minutes from Routes 202 and 422, Pennsylvania Turnpike and I-76. Located less than a mile from the King of Prussia Mall and the Valley Forge Casino. 660 and 680 American Avenue are adjacent to the hotel accommodations at the Hyatt Place Philadelhia / King of Prussia and the extended Stay America Philadelphia / King of Prussia. Date available: Now Lease term: Negotiable Service type: Negotiable Space Type: Relet
1st Floor Ste 100	Office	29,890 SF	Rate Upon Request
Date available: Now Lease term: Negotiable Service type: Negotiable Space Type: Relet
1st Floor Ste 101	Office	4,750 SF	Rate Upon Request
Twin” buildings 660 and 680 American Avenue are Class “A” buildings that feature functional and inviting architectural details. 660 and 680 American Avenue are located minutes from Routes 202 and 422, Pennsylvania Turnpike and I-76. Located less than a mile from the King of Prussia Mall and the Valley Forge Casino. 660 and 680 American Avenue are adjacent to the hotel accommodations at the Hyatt Place Philadelhia / King of Prussia and the extended Stay America Philadelphia / King of Prussia. Date available: Now Lease term: Negotiable Service type: Negotiable Built out as: Standard Office Space Type: Relet
1st Floor Ste 101	Office	4,154-6,732 SF	Rate Upon Request
Twin” buildings 660 and 680 American Avenue are Class “A” buildings that feature functional and inviting architectural details. 660 and 680 American Avenue are located minutes from Routes 202 and 422, Pennsylvania Turnpike and I-76. Located less than a mile from the King of Prussia Mall and the Valley Forge Casino. 660 and 680 American Avenue are adjacent to the hotel accommodations at the Hyatt Place Philadelhia / King of Prussia and the extended Stay America Philadelphia / King of Prussia. Date available: Mar 2026 Lease term: Negotiable Service type: Negotiable Built out as: Standard Office Space Type: New
1st Floor Ste 103	Office	2,004 SF	Rate Upon Request
Date available: Now Lease term: Negotiable Service type: Negotiable Space Type: Relet
1st Floor Ste 107	Office	1,063 SF	$19.50 USD/SF/YR
Twin” buildings 660 and 680 American Avenue are Class “A” buildings that feature functional and inviting architectural details. 660 and 680 American Avenue are located minutes from Routes 202 and 422, Pennsylvania Turnpike and I-76. Located less than a mile from the King of Prussia Mall and the Valley Forge Casino. 660 and 680 American Avenue are adjacent to the hotel accommodations at the Hyatt Place Philadelhia / King of Prussia and the extended Stay America Philadelphia / King of Prussia. Date available: Now Lease term: Negotiable Service type: Plus Electric Space Type: Relet
2nd Floor Ste 201	Office	4,492 SF	Rate Upon Request
Date available: Now Lease term: Negotiable Service type: Negotiable Space Type: Relet
2nd Floor Ste 202	Office	2,019 SF	Rate Upon Request
Twin” buildings 660 and 680 American Avenue are Class “A” buildings that feature functional and inviting architectural details. 660 and 680 American Avenue are located minutes from Routes 202 and 422, Pennsylvania Turnpike and I-76. Located less than a mile from the King of Prussia Mall and the Valley Forge Casino. 660 and 680 American Avenue are adjacent to the hotel accommodations at the Hyatt Place Philadelhia / King of Prussia and the extended Stay America Philadelphia / King of Prussia. Date available: Now Lease term: Negotiable Service type: Negotiable Built out as: Standard Office Space Type: Relet
2nd Floor Ste 202	Office	797 SF	Rate Upon Request
Date available: Feb 2026 Lease term: Negotiable Service type: To Be Determined Space Type: Relet
2nd Floor Ste 203	Office	10,840 SF	Rate Upon Request
Date available: Now Lease term: Negotiable Service type: Negotiable Built out as: Standard Office Space Type: Relet
2nd Floor Ste 204A	Office	4,166 SF	Rate Upon Request
Date available: 30 Days Lease term: Negotiable Service type: Negotiable Space Type: Relet
3rd Floor Ste 300	Office	11,113 SF	Rate Upon Request
Twin” buildings 660 and 680 American Avenue are Class “A” buildings that feature functional and inviting architectural details. 660 and 680 American Avenue are located minutes from Routes 202 and 422, Pennsylvania Turnpike and I-76. Located less than a mile from the King of Prussia Mall and the Valley Forge Casino. 660 and 680 American Avenue are adjacent to the hotel accommodations at the Hyatt Place Philadelhia / King of Prussia and the extended Stay America Philadelphia / King of Prussia. Date available: Now Lease term: Negotiable Service type: Negotiable Space Type: Relet
3rd Floor Ste 304	Office	5,779 SF	$19.50 USD/SF/YR
Twin” buildings 660 and 680 American Avenue are Class “A” buildings that feature functional and inviting architectural details. 660 and 680 American Avenue are located minutes from Routes 202 and 422, Pennsylvania Turnpike and I-76. Located less than a mile from the King of Prussia Mall and the Valley Forge Casino. 660 and 680 American Avenue are adjacent to the hotel accommodations at the Hyatt Place Philadelhia / King of Prussia and the extended Stay America Philadelphia / King of Prussia. Date available: Now Lease term: Negotiable Service type: Plus Electric Built out as: Standard Office Space Type: Relet

Description

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.

                
                    Highlights
                
                                Attractive multi-building office campus in a vibrant Philadelphia suburb minutes to shopping, dining, entertainment, and hospitality options.
                            
                                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.
                            
                                Well-maintained Class A office buildings offering turnkey and customizable suites ranging from 1,063 square feet to 29,890 square feet.
                            
                                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.

Property Flyers

Floor Plan

Amenities

Atrium
Bus Line
Freeway Visibility

Public Transportation

Commuter Rail	Drive	Walk	Distance
Norristown Transportation Center (R6 Line) (R6 - Southeastern Pennsylvania Transportation Authority Regional Rail (SEPTA Regional Rail))	12 min	-	4.6 mi
Main Street (Norristown) (R6 - Southeastern Pennsylvania Transportation Authority Regional Rail (SEPTA Regional Rail))	11 min	-	5.0 mi
Airport	Drive	Walk	Distance
Philadelphia International	46 min	-	28.5 mi
Trenton Mercer	61 min	-	44.7 mi

David McManus 267-682-7758 Westover Companies

660 American Ave King Of Prussia, PA 19406 Valley Forge/King of Prussia