Adelphi School
Why it's listed
Built in 1831-34 on Spring Street in Philadelphia, this two and one-half story brick and wood building was constructed by the Philadelphia Association of Friends, a Quaker group that founded the Adelphi School to educate poor children. Classes began in February 1832. The building has a gable roof, a symmetrical facade with a round-headed central door, and 12 over 12 double-hung windows. Its interior is simple, with a center-beam structural system supported by Tuscan wood columns on the first floor. The nomination regards it as an example of vernacular Federal construction that survived well into the 19th century. Its hand-shaped balusters and planed beams combined with milled work show the shift from hand-crafted to machine-made building. It is also probably the last surviving free school building in Philadelphia. From 1908 to 1945 it housed the Spring Street Settlement, which ran classes, clubs and family counseling for Black residents of the city.
Significance in brief: The nomination argues the building is significant for its vernacular Federal-style construction, including a center-beam structural system, and as probably the last surviving free school building in Philadelphia. It is also associated with the Quaker Philadelphia Association of Friends, which founded it to educate poor children, and later with the Pennsylvania Society for Promoting the Abolition of Slavery, whose Spring Street Settlement ran social programs there.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 78002441, listed September 18, 1978. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence medium).
Key facts
| Address | 1223--1225 Spring St., Philadelphia |
|---|---|
| County | Philadelphia |
| Listed | September 18, 1978 |
| Reference number | 78002441 |
| Resource type | Building |
| Period of significance | 1831-1834 |
| Architectural style | Federal (vernacular) |
| Areas of significance | Education, Architecture, Religion, Social History |
| Level of significance | Local |
| Acreage | 0.5 |
| Coordinates | 39.95646, -75.16019 (NPS GIS) |
What listing means for this property
For a publicly owned building or structure, listing mainly matters when federal funds, permits or licences are involved: projects then go through Section 106 review so effects on the property are considered. Listing also strengthens applications for preservation grants and, for leased income-producing uses, can enable the federal rehabilitation tax credit.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 78002441.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q4682069
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.