
$500,000
3217 Chatham St, Philadelphia, PA 19134
Listed by Keller Williams Main Line
An Iconic Location Built for the Visionary. Introducing The Dilworth House - a masterful blend of architectural heritage, elevated design, and modern sophistication overlooking Philadelphia’s iconic Washington Square Park. Developed by Astoban Investments and brought to life by CBP Architects, the award-winning firm originally founded by Cecil Baker, this limited collection of just eight luxury residences stands among the city’s most refined residential offerings. Rooted in the legacy of Mayor Richardson Dilworth, who helped lead the revitalization of Society Hill, The Dilworth House pays homage to its past with stately Colonial Revival architecture by G. Edwin Brumbaugh, echoing the grace of Dilworth’s original 1957 mansion while embracing the innovation and craftsmanship of today’s luxury living. Behind a gated, professionally landscaped entry, residents are welcomed into a world of privacy, sophistication, and quiet grandeur. Residence 301 offers 3,739 square feet of thoughtfully designed interior space and 272 square feet of private outdoor living, incorporating part of the original Dilworth House. Soaring ceilings, architectural details, and curated finishes create a seamless balance between historic charm and modern refinement. The layout features three spacious bedrooms, three-and-a-half baths, a family room, and a versatile den, ideal for everyday living or elegant entertaining. The open-concept design connects a generous living area, dining space, and a chef’s kitchen by The Cut, meticulously crafted in Italy. Imported cabinetry, porcelain surfaces, and top-tier Gaggenau appliances, including double ovens and a built-in espresso system, elevate both form and function. Each residence in The Dilworth House showcases bespoke kitchens and architecturally forward layouts designed to enhance natural light and views of Washington Square Park. The primary suite enjoys access to the private terrace, a custom dressing area, and a spa-inspired marble bath with radiant-heated floors, soaking tub, glass-enclosed steam shower, and dual vanities. Additional ensuite bedrooms provide flexibility for guest quarters, an office, or studio space — each featuring generous closets and refined finishes imported from Italy. Building amenities include a full-time doorman, residents-only fitness studio by Technogym, storage, and a state-of-the-art automated parking system that parks and retrieves your car with the touch of a button. Constructed with reinforced concrete, soundproofing, and secure access, each home also features Lutron lighting, two-zone HVAC, and smart-home integration. A 10-year tax abatement and low condo fees provide long-term value. Additionally, there is a rare opportunity to purchase a 504-square-foot ground-floor auxiliary space, ideal for a guest suite, office, or gym. With the option to add a full bathroom, the total potential living space expands to 4,243 square feet. Located directly on Washington Square Park in the Society Hill district, residents are steps from Talula’s Garden, Zahav, Morimoto, and Old City’s cultural venues, with easy access to I-95, I-676, and 30th Street Station. The Dilworth House represents a rare opportunity to own new construction overlooking Washington Square Park— a home that honors its historic past while redefining modern luxury living in Philadelphia.
| Date | Event | Price |
|---|---|---|
| May 5, 2025 | Listed for sale | $4,486,800 |
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 value
$3,025,000
Automated estimate, not an appraisal. Sale records through July 2026.
Based on 10 comparable sales nearby, the Philadelphia County assessment ratio, weighted toward the current asking price.
| Address | Closed | Sale price | Bd/Ba | Sqft | Adjusted value |
|---|---|---|---|---|---|
| 237-47 S 18TH ST #19B, PHILADELPHIA, PA 19103 | April 2026 | $2,250,000 | 3/3 | 3,878 | $2,316,873 |
| 219-29 S 18TH ST #202, PHILADELPHIA, PA 19103 | April 2026 | $3,700,000 | 3/3 | 3,416 | $4,301,000 |
| 227-31 S 6TH ST #PH-W, PHILADELPHIA, PA 19106 | April 2026 | $4,300,000 | 4/2 | 4,159 | $6,020,000 |
| 500 WALNUT ST #701, PHILADELPHIA, PA 19106 | May 2026 | $2,950,000 | 3/3 | 2,700 | $3,896,958 |
| 1820-00 RITTENHOUSE SQ #1601, PHILADELPHIA, PA 19103 | June 2026 | $2,750,000 | 3/3 | 3,217 | $2,979,381 |
| 1414 S PENN SQ #34CDE, PHILADELPHIA, PA 19102 | June 2026 | $1,670,000 | 3/4 | 3,091 | $1,656,881 |
| Date | Event | Price |
|---|---|---|
| April 2026 | Sold | $5,526,000 |
From closed MLS and county deed records. Earlier transactions may exist.
Recorded property taxes: $7,894 (2024 bill as recorded in the MLS).
Loan term
Estimated monthly payment
$24,489/mo
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.
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 →
FBI and Pennsylvania source data, presented without spin.
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: July 8, 2026 at 2:46 PM EDT
Our concierge desk does a 1-on-1 needs analysis with you, then hand-picks a vetted Philadelphia agent or lender, not whoever paid for your ZIP. Free, no obligation. If you work with a partner we introduce, NookLocal may earn a referral fee from their broker.