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One Washington Square - Availability Details

510-530 Walnut Street, Philadelphia, PA 19106

  • For Lease Contact for pricing
  • Property Type Office
  • Property Size 857,308 Sqft
  • Parking Ratio 0.20/ 1,000 SF
  • Building Class A
  • Year Built 1930
  • Date Updated Sep 20, 2021
The One Washington Square (formerly Penn Mutual Towers) are established landmarks centered within Philadelphia's historic and business districts. The award-winning three-building complex, with towers constructed in 1914, 1930 and 1972, is one of the city's most highly regarded corporate addresses hosting a roster of prestigious firms. The Penn Mutual Towers overlook Independence Square and offer extraordinary views of the city from nearly every floor. The Philadelphia waterfront and some of the nation's most significant monuments add to the appeal of this important location. Impressive polished marble floors, commanding columns and intricate plaster ceilings above the walnut concierge and security station are striking indications of the quality of the complex. First class renovations throughout both towers offer comfortable, attractive and flexible space. Expansive window lines further enhance the setting, allowing natural light in offices and spectacular views.
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Spaces Available

Name: Partial 2 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5/Sqft/Year
  • Total Space Available 21,707 Sqft
  • Floor 2 to 2
  • Divisible Space No
  • Min Divisible 21,707 Sqft
  • Max Contiguous 21,707 Sqft
  • Available Date Mar 01, 2020
  • Lease Type Full Service
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 2 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 1 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5/Sqft/Year
  • Total Space Available 29,793 Sqft
  • Floor 1 to 1
  • Divisible Space No
  • Min Divisible 29,793 Sqft
  • Max Contiguous 29,793 Sqft
  • Available Date Immediate
  • Lease Type Full Service
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 1 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial Building see moresee less
  • Space Type General Office
  • Lease Rate $29.5/Sqft/Year
  • Total Space Available 26,201 Sqft
  • Floor 1.5 to 1.5
  • Divisible Space No
  • Min Divisible 26,201 Sqft
  • Max Contiguous 26,201 Sqft
  • Available Date Immediate
  • Lease Type Full Service
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial Building
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 2 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5/Sqft/Year
  • Total Space Available 17,617 Sqft
  • Floor 2 to 2
  • Divisible Space No
  • Min Divisible 17,617 Sqft
  • Max Contiguous 17,617 Sqft
  • Available Date Mar 01, 2020
  • Lease Type Full Service
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 2 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 4 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5/Sqft/Year
  • Total Space Available 11,438 Sqft
  • Floor 4 to 4
  • Divisible Space No
  • Min Divisible 11,438 Sqft
  • Max Contiguous 11,438 Sqft
  • Available Date Immediate
  • Lease Type Full Service
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 4 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 11 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5/Sqft/Year
  • Total Space Available 3,291 Sqft
  • Floor 11 to 11
  • Divisible Space No
  • Min Divisible 3,291 Sqft
  • Max Contiguous 3,291 Sqft
  • Available Date Immediate
  • Lease Type Full Service
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 11 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 3 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5/Sqft/Year
  • Total Space Available 2,358 Sqft
  • Floor 3 to 3
  • Divisible Space No
  • Min Divisible 2,358 Sqft
  • Max Contiguous 2,358 Sqft
  • Available Date Immediate
  • Lease Type Full Service
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 3 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 14 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5/Sqft/Year
  • Total Space Available 3,908 Sqft
  • Floor 14 to 14
  • Divisible Space No
  • Min Divisible 3,908 Sqft
  • Max Contiguous 3,908 Sqft
  • Available Date Oct 01, 2019
  • Lease Type Full Service
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 14 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 15 Floor see moresee less
  • Space Type General Office
  • Lease Rate Negotiable
  • Total Space Available 7,795 Sqft
  • Floor 15 to 15
  • Divisible Space No
  • Min Divisible 7,795 Sqft
  • Max Contiguous 7,795 Sqft
  • Available Date Immediate
  • Lease Type Modified Gross
  • Sub Lease Yes
  • Sub Lease Expiry 31 Dec, 2021
  • Suite Partial 15 Floor
broker

Jason Bernardi

Cushman & Wakefield

(215) 963-4005

Name: Partial 2 Floor see moresee less
  • Space Type General Office
  • Lease Rate Negotiable
  • Total Space Available 16,063 Sqft
  • Floor 2 to 2
  • Divisible Space No
  • Min Divisible 16,063 Sqft
  • Max Contiguous 16,063 Sqft
  • Available Date Immediate
  • Lease Type Modified Gross
  • Sub Lease Yes
  • Sub Lease Expiry 31 Dec, 2021
  • Suite Partial 2 Floor
broker

Jason Bernardi

Cushman & Wakefield

(215) 963-4005

Name: Partial 14 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5/Sqft/Year
  • Total Space Available 3,783 Sqft
  • Floor 14 to 14
  • Divisible Space No
  • Min Divisible 3,783 Sqft
  • Max Contiguous 3,783 Sqft
  • Available Date Jan 01, 2021
  • Lease Type Full Service
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 14 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 4 Floor see moresee less
  • Space Type General Office
  • Lease Rate Negotiable
  • Total Space Available 4,418 Sqft
  • Floor 4 to 4
  • Divisible Space No
  • Min Divisible 4,418 Sqft
  • Max Contiguous 4,418 Sqft
  • Available Date Immediate
  • Lease Type Modified Gross
  • Sub Lease Yes
  • Sub Lease Expiry 31 Dec, 2021
  • Suite Partial 4 Floor
broker

Jason Bernardi

Cushman & Wakefield

(215) 963-4005

Name: Suite 1300 see moresee less
  • Space Type General Office
  • Lease Rate Negotiable
  • Total Space Available 6,422 Sqft
  • Floor 13 to 13
  • Divisible Space No
  • Min Divisible 6,422 Sqft
  • Max Contiguous 6,422 Sqft
  • Available Date Immediate
  • Lease Type Full Service
  • Sub Lease Yes
  • Sub Lease Expiry 31 May, 2024
  • Suite Suite 1300
  • Space Number 1300
broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Suite 1313 see moresee less
  • Space Type General Office
  • Lease Rate Negotiable
  • Total Space Available 6,909 Sqft
  • Floor 13 to 13
  • Divisible Space No
  • Min Divisible 6,909 Sqft
  • Max Contiguous 6,909 Sqft
  • Available Date Immediate
  • Lease Type Full Service
  • Sub Lease Yes
  • Sub Lease Expiry 31 May, 2024
  • Suite Suite 1313
  • Space Number 1313
broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 11 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5 - $30.5/Sqft/Year
  • Total Space Available 2,299 Sqft
  • Floor 11 to 11
  • Divisible Space No
  • Min Divisible 2,299 Sqft
  • Max Contiguous 2,299 Sqft
  • Available Date Immediate
  • Lease Type Modified Gross
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 11 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 16 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5 - $30.5/Sqft/Year
  • Total Space Available 14,316 Sqft
  • Floor 16 to 16
  • Divisible Space No
  • Min Divisible 14,316 Sqft
  • Max Contiguous 14,316 Sqft
  • Available Date Immediate
  • Lease Type Modified Gross
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 16 Floor
broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

Name: Partial 11 Floor see moresee less
  • Space Type General Office
  • Lease Rate $29.5 - $30.5/Sqft/Year
  • Total Space Available 5,621 Sqft
  • Floor 11 to 11
  • Divisible Space No
  • Min Divisible 5,621 Sqft
  • Max Contiguous 5,621 Sqft
  • Available Date Immediate
  • Lease Type Modified Gross
  • Renewal Option Yes
  • Sub Lease No
  • Suite Partial 11 Floor
Name: Partial 8 Floor see moresee less
  • Space Type General Office
  • Lease Rate $21/Sqft/Year
  • Total Space Available 31,427 Sqft
  • Floor 8 to 8
  • Divisible Space Yes
  • Min Divisible 20,000 Sqft
  • Max Contiguous 31,427 Sqft
  • Available Date Immediate
  • Lease Type Modified Gross
  • Sub Lease Yes
  • Sub Lease Expiry 30 Jun, 2024
  • Suite Partial 8 Floor
broker

William J. Hirschfeld

Cushman & Wakefield

(215) 963-4025

Location

  • City Philadelphia, PA
  • Neighborhood Society Hill
  • Zip Code 19106
  • Market Philadelphia

Contacts

broker

Jack Meyers

Cushman & Wakefield

(215) 963-4054

broker

Daniel Brogan

Cushman & Wakefield

(215) 963-4040

broker

Brian Young

Cushman & Wakefield

(215) 963-4155

broker

Jason Bernardi

Cushman & Wakefield

(215) 963-4005

broker

William J. Hirschfeld

Cushman & Wakefield

(215) 963-4025

Highlights

  • Impressive polished marble floors
  • commanding columns and intricate plaster ceilings above the walnut concierge and security station are striking indications of the quality of the complex. First class renovations throughout both towers offer comfortable
  • attractive and flexible space. Expansive window lines further enhance the setting
  • allowing natural light in offices and spectacular views. Close proximity to the Federal Court
  • City Hall
  • Philadelphia's Central Business District as well as hotels
  • fine restaurants
  • shops
  • theaters
  • medical centers
  • and galleries adds to the convenience of this fine office complex. The Penn Mutual towers are also within walking distance from a number of residential areas including Society Hill and Queen Village. * On-site banking services * Numerous hotels
  • shops and dining areas within a three-block radius * Attractive parks and historic monuments surround the facility * are easily accessible by car * Four garages within a three block

Frequently Asked Questions

How many active listings are there at One Washington Square?

At present, there are 18 spaces listed at One Washington Square.

What’s the size and rental rate of the largest space available at One Washington Square?

Currently, the largest rentable space at One Washington Square totals 31,427 square feet. The space has an asking rate of roughly $21/Sqft/Year per square foot.

What is the total square footage of One Washington Square?

One Washington Square totals 857,308 square feet, of which 215,366 square feet is rentable.

What year was One Washington Square built and finished?

One Washington Square was completed in 1930.

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