Grass Valley Public Library
Why it's listed
Built as a Carnegie library and opened on August 3, 1916, this one-story brick building on a raised basement stands at 207 Mill Street in Grass Valley. Architect William Mooser of San Francisco designed it in the Classical Revival style, with a projecting central entrance, pilasters, a low parapet and large dentils under the cornice. A Carnegie grant of $15,000 paid for construction by Welch Bros. and Hannemann of Oakland, plus furnishings. The trustees chose Mooser over a competing plan by W. H. Weeks. The library sits above the Golden Center Mine in a town settled in 1849 and shaped by Cornish hardrock mining, and it holds a valuable mining collection. Philosopher Josiah Royce was born on the site, and plaques and trees commemorate him. The building remains in library use, its interior is largely original, and the nomination treats 1916 to 1942 as its period of significance.
Significance in brief: The nomination presents the library as a Classical Revival example and as part of California's Carnegie libraries. It also ties the building to local social history: the town's library movement, the Cornish mining heritage, the birthplace of philosopher Josiah Royce on the site, and a mining collection. The period of significance ends in 1942 for lack of exceptional significance after that date.
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 92000267, listed March 26, 1992. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | 207 Mill St., Grass Valley |
|---|---|
| County | Nevada County |
| Listed | March 26, 1992 |
| Reference number | 92000267 |
| Resource type | Building |
| Period of significance | 1916-1942 |
| Architect / builder | Mooser, William, architect; Welch Bros. and Hannemann of Oakland, contractor |
| Architectural style | Classical Revival |
| Criteria |
|
| Areas of significance | Architecture, Social History |
| Level of significance | Local |
| Status (as stated in the nomination) | Still serves as a library; described as in very good condition and basically unchanged, with exterior repainted in 1985 and interior rewired and refinished in 1990. |
| Acreage | 0.3 |
| Coordinates | 39.21612, -121.06484 (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 92000267.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q5597474
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.