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For Sale

Listing description

Experience the pinnacle of modern Philadelphia living at 223 S 6th Street #PH ​- the Penthouse at The Dilworth House, an architectural landmark designed by CBP Architects and developed by Astoban Investments, one of the city’s premier luxury builders. This newly built residence unites contemporary innovation with timeless elegance, offering nearly 5,000 square feet of interior space and over 3,800 square feet of private outdoor terraces overlooking Washington Square Park, Society Hill, and the city skyline. There is truly nothing like it in Philadelphia. A private elevator opens directly into a light-filled foyer leading to expansive living and dining areas wrapped in floor-to-ceiling glass with southern and western exposures that capture sunset and park views. The open-concept plan integrates an imported Italian Scavolini kitchen featuring Compac Quartz countertops, integrated Wolf, Sub-Zero, and Miele appliances, double ovens, and a built-in espresso system ​- all oriented toward the park and river-view terraces for effortless entertaining. Each of the five ensuite bedrooms combines privacy with refined design. The primary suite offers a custom dressing room, radiant-heated marble floors, oversized soaking tub, frameless steam shower, and dual vanities, all finished with Italian tile and Pianca cabinetry. Secondary suites provide flexibility for guests, an office, or a private gym. Designed for seamless indoor-outdoor living, this penthouse showcases multiple private terraces with unobstructed park, city, and river views, ideal for open-air dining or rooftop gatherings. State-of-the-art systems include Lutron lighting, ButterflyMX keyless entry, two-zone HVAC, and smart-home integration. The residence includes two on-site automated parking spaces within a fully mechanized garage and private storage. Residents enjoy the exclusivity of a boutique building of only eight homes, built with reinforced concrete construction, soundproofing, and secure access. Monthly condo fees cover building maintenance, insurance, and amenities, and the property benefits from a Philadelphia tax abatement. Perfectly positioned on Washington Square Park in the Society Hill district, this location places you steps from Talula’s Garden, Zahav, Morimoto, Independence Hall, and Old City’s cultural venues, with quick access to I-95, I-676, and 30th Street Station. The home’s setting blends historic surroundings with modern luxury ​- a rare opportunity to own new construction with direct park frontage, panoramic city and river views, and unmatched outdoor space.( These 3D renderings are artist’s conceptual interpretations intended for illustrative purposes only. While they provide an accurate feel for the layout, some design elements, finishes, and architectural details are subject to change. Please expect minor variations as final construction and staging are completed.)

Rooms by level

How the bedrooms and baths are distributed across the floors, as reported by the listing agent.

  1. Main level3 bedrooms · 3 full baths · 1 half bath
  2. Upper level2 bedrooms · 2 full baths

Facts & features

Interior

Bedrooms
5
Bathrooms
5 full · 1 half
Living area
4,980 sq ft
Heating
Radiant, Zoned, Other
Cooling
Central A/C

Property & construction

Property type
Residential · Penthouse Unit/Flat/Apartment
Architectural style
Contemporary
Year built
2023
New construction
Yes

Lot & parking

Garage
2 spaces

Financial

Price / sq ft
$2,912
HOA dues
None

Listing details

MLS #
PAPH2473826
County
Philadelphia County
School district
Philadelphia City
Days on NookLocal
474 days

Interior features

Laundry
Dryer In Unit, Washer In Unit
Levels
2
Accessibility
Elevator
Security
24 hour security, Desk in Lobby, Doorman, Fire Detection System, Exterior Cameras, Monitored, and 2 more

Exterior & construction

Construction
Masonry
Patio & porch
Deck(s), Balcony, Terrace
View
City, River

Systems & utilities

Heating fuel
Natural Gas
Cooling fuel
Other
Hot water
Natural Gas
Water source
Public
Sewer
Public Sewer
Utilities
Cable TV, Electric Available, Natural Gas Available, Phone Available, Sewer Available, Water Available, and 1 more
Internet
Broadband, Cable

Parking

Parking
Parking Garage
Garage type
Garage - Rear Entry
Total spaces
2

Community

Subdivision
WASHINGTON SQ
HOA amenities
Elevator, Security
HOA includes
Common Area Maintenance, Ext Bldg Maint, Snow Removal, Trash

Lot & zoning

Lot dimensions
0.00 x 0.00
Zoning
CMX4

Included in the sale

Possession
Immediate, Negotiable

Price history

DateEventPrice
May 5, 2025Listed for sale$14,500,000

Price changes are tracked from when NookLocal first indexed this listing; earlier history may not appear. Tax & assessment details are in the section below.

Estimated taxes

Recorded property taxes: $22,676 (2024 bill as recorded in the MLS).

Estimated monthly payment calculator

$2,900,000 (20%)
6.43%

Loan term

Estimated monthly payment

$78,906/mo

Principal & interest
$72,787
Property taxes
$1,890
Home insurance (est.)
$4,229

Taxes use the amount recorded on the MLS. The default rate is the average 30-year rate as of July 2026; insurance is estimated at 0.35% of the price per year. Below 20% down, lenders usually add mortgage insurance, which this estimate doesn't include. Estimate only; verify before relying on it.

Area statistics

School district

Philadelphia City

2025 PA state assessments (PSSA / Keystone) and graduation data. The index measures student outcomes, not school effectiveness, and is not adjusted for demographics. Districts serve all residents; verify enrollment boundaries with the district.

Safety data

Philadelphia County crime & safety numbers →

County figures from FBI and Pennsylvania source data.

Property taxes

Philadelphia County taxes, explained →

Millage, the Common Level Ratio, and what changes after you buy.

© BRIGHT, All Rights Reserved

Information Deemed Reliable But Not Guaranteed

The data relating to real estate for sale on this website appears in part through the BRIGHT Internet Data Exchange program, a voluntary cooperative exchange of property listing data between licensed real estate brokerage firms in which United Real Estate Strive 212 participates, and is provided by BRIGHT through a licensing agreement.

IDX listings are displayed pursuant to broker of record United Real Estate Strive 212, Frank Ramos, Broker/Owner, PA Broker License RM424345, 1220 Broadcasting Rd, Suite 201, Wyomissing, PA 19610, (610) 372-0212.

The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Some properties which appear for sale on this website may no longer be available because they are under contract, have Closed or are no longer being offered for sale.

Data last updated: August 22, 2026 at 2:13 PM EDT

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