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1876 called, and it wants you to come home. Set on one of East Falls' earliest residential streets, this home traces its origins to the neighborhood's 19th-century transformation into a thriving textile district, when the nearby mills helped shape both the architecture and character of the community. At 2,160 square feet spread across three floors, this is a legal duplex that reads more like a grand single-family home, full of original character, remarkable bones, and genuine flexibility that's increasingly hard to find at any price point. The heavy lifting has been done. What's left is cosmetic, and the canvas is extraordinary. Step inside through the traditional Philadelphia vestibule into the main entry hall, and the house announces itself immediately. Mixed-width original hardwood floors run throughout (refinished on the first floor), ceiling heights range from 9 to 12 feet, and original details are everywhere: slate fireplace mantels, partial original plaster crown molding, original woodwork, and the majority of the original doors still in place. Pocket shutters, fully restored by the present owner, grace the parlor and several other rooms. Speaking of the parlor: a magnificent gilded pier mirror conveys with the sale. It belongs in this house. The first floor flows the way a Victorian home should, vestibule to hall, hall to dining room, dining room to kitchen, kitchen to back patio, patio to the garden. And what a garden. The second lot (this is a double lot) has been professionally designed, and is anchored by a massive oak tree that offers shade that money can't buy. Neighbors have successfully created parking by relocating the retaining wall. It's not a small project, but there's a clear precedent. The second floor has three bedrooms, a full bathroom, and a second kitchen. The third floor functions as a self-contained studio with its own full bathroom, kitchen, and a generous open room. Though currently configured as three separate living units, the property has legal zoning as a duplex. The options are genuinely exciting: live in one unit and rent the other to offset the mortgage, then absorb more space as your needs grow. Or reconfigure the whole thing as a spectacular single-family home. The full basement with surprisingly high ceilings adds even more room to grow. East Falls is a tree-lined, river-adjacent neighborhood with a strong community identity and serious urban convenience. The Regional Rail station is a three-minute walk, putting Center City within easy reach. For dining and nightlife, In Riva, Fiorino, LeBus, Wissahickon Brewing, and Billy Murphy's are all nearby, with Vault + Vine and Thunder Mug handling the coffee. The Schuylkill River and Wissahickon Valley Park are practically out the front door. Houses like this, with this much original integrity, this much flexibility, and this much upside, don't come along often. 3521-23 Ainslie is ready for its next chapter.
| DAYS ON MARKET | 0 | LAST UPDATED | 5/2/2026 |
|---|---|---|---|
| TRACT | EAST FALLS | YEAR BUILT | 1876 |
| COMMUNITY | 19129 (19129) | COUNTY | PHILADELPHIA |
| STATUS | Conditional | PROPERTY TYPE(S) | Condo/Townhouse/Co-Op |
| School District | THE SCHOOL DISTRICT OF PHILADELPHIA |
|---|
| ADDITIONAL DETAILS | |
| AIR | Ceiling Fan(s), Central Air, Ductless, Electric |
|---|---|
| AIR CONDITIONING | Yes |
| APPLIANCES | Dryer, Gas Oven, Gas Range, Gas Water Heater, Refrigerator, Washer, Water Heater |
| AREA | 19129 (19129) |
| BASEMENT | Full, Unfinished, Yes |
| CONSTRUCTION | Stone |
| EXTERIOR | Lighting |
| HEAT | Electric, Natural Gas, Zoned |
| INTERIOR | Built-in Features, Ceiling Fan(s), Crown Molding, Eat-in Kitchen, High Ceilings, Recessed Lighting |
| LOT | 4792 sq ft |
| LOT DESCRIPTION | Level |
| LOT DIMENSIONS | 50.00 x 100.00 |
| PARKING | On Street |
| POOL DESCRIPTION | None |
| SEWER | Public Sewer |
| STORIES | 3+ |
| STYLE | Victorian |
| SUBDIVISION | EAST FALLS |
| TAXES | 6725 |
| WATER | Public |
MORTGAGE CALCULATOR
TOTAL MONTHLY PAYMENT
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Data last updated: 5/2/26 9:31 PM PDT
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