Office Building with Marble
For Lease
Contact for pricing
510-530 Walnut St, Philadelphia, PA 19106
Three-building office complex features polished marble floors, expansive window lines, and renovated office space throughout the towers.
Space Size8,550 SF
Days on Market364
Property Features for 510-530 Walnut St
General Information
Standard status
Active
Size
8,550 SF
Property subtype
OFFICE
Additional Details
Space Use
Office
Amenities
concierge
security
Spaces For Lease
at 510-530 Walnut St Contact us- Size
- 8,550 SF
- Type
- OFFICE
- Rate
- Contact for pricing
- Lease Type
- NET_NNN
- Availability
- AVAILABLE, Now
- Sublease
- Yes
The Washington
- The One Washington Square (formerly Penn Mutual Towers) are established landmarks...
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Listing Agency:
Cushman & Wakefield | Philadelphia
(215) 963-4000
Listed By:
Jason Bernardi
(215) 963-4005
Source:
Moodyscre
Added: Sep 17, 2025
Changed: Sep 14
Last Checked: Sep 14 at 11:15AM
Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Cushman & Wakefield | Philadelphia
Investment Insights
Based on property information with market context.
The One Washington Square is a three-building office complex with towers constructed in 1914, 1930, and 1972. The property is 8,550 SF and is designed for flexible corporate office use within an established landmark setting. Interiors include polished marble floors, commanding columns, and intricate plaster ceilings, with a walnut concierge and security station as part of the lobby experience.
The buildings overlook Independence Square, offering city views from nearly every floor. Expansive window lines bring natural light into the offices and frame the surrounding cityscape.
First class renovations are described throughout both towers, supporting comfortable, attractive, and adaptable space for office tenants seeking an upgraded environment with prominent architectural character.
The buildings overlook Independence Square, offering city views from nearly every floor. Expansive window lines bring natural light into the offices and frame the surrounding cityscape.
First class renovations are described throughout both towers, supporting comfortable, attractive, and adaptable space for office tenants seeking an upgraded environment with prominent architectural character.
Key Highlights
- Three‑building office complex with tower construction years: 1914, 1930, and 1972
- Polished marble floors throughout
- Commanding columns and intricate plaster ceilings
Property Analytics
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Current Use
Lease Details
NNN (Triple Net)
Lease Type
Location Intelligence
Trade Area within ½ mile
2,527
Businesses Nearby
Explore this area
Business Placement
Demographics for 19106, PA
15,190
Population
9,913
Households
1.5
Avg Household Size
39
Median Age
80%
College-Educated
96%
High-School Grad
0.9 sq mi
ZIP Area
16,878
Density / Sq Mi
$129,779
Median Household Income
$93,953
Median Earnings
$2,219
Median Rent
$528,700
Median Home Value
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Market
Vacancy Rate% for Office in Philadelphia, PA
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Frequently Asked Questions
What type of property is this?
Office building - Three-building office complex features polished marble floors, expansive window lines, and renovated office space throughout the towers.
Where is this office building located?
The property is located at 510-530 Walnut St Philadelphia, PA.
What are key features of this property?
This property features: Three‑building office complex with tower construction years: 1914, 1930, and 1972; Polished marble floors throughout; Commanding columns and intricate plaster ceilings
