{"nrhp_refnum":"08001251","name":"Lundberg, Charles, House","other_names":["Old Stone Mansion","Byron C. Marlowe Center of Philanthropy","The Community Foundation of Northern Illinois"],"category":"building","location":{"address":"946 N. 2nd St.","address_restricted":false,"city":"Rockford","county":"Winnebago County","state":"IL","lat":42.279341600000066,"lon":-89.07728472399998,"geom_source":"nps_gis"},"listed_date":"2008-12-30","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-and-a-half-story limestone house at 946 North Second Street in Rockford, Illinois, built in 1915 for Charles J. Lundberg and designed by architect Frank A. Carpenter. It is now used as a community foundation office.","why_significant":"The nomination argues the house is notable for blending two major early twentieth-century trends: Georgian/Colonial Revival form and Craftsman/Arts and Crafts detailing. It is also tied to Lundberg, a Rockford furniture businessman and civic leader, and to the early residential development of the Park Ridge area along North Second Street.","narrative":"Built in 1915 at 946 North Second Street in Rockford, this cream-colored limestone house was designed by local architect Frank A. Carpenter for Charles J. Lundberg, a furniture executive, alderman and school board president. Its symmetrical five-bay front, large porch, side-gabled roof, dormers and flanking wings follow Georgian Revival models, yet green glazed brick, matte-green tile, a green tile roof and an Arts and Crafts entry door bring in Craftsman character. Inside, oak and mahogany woodwork, built-ins, and Grueby tile floors reflect the same mix. The house sits among a few remaining estates on the Rock River side of North Second Street, where prominent residents built in the early 1900s. Lundberg and his wife lived there until the 1940s. After several private owners, a community foundation bought it in 2000, converted it to offices, and restored original features while adding accessibility changes. It is regarded as a fine example of transitional architecture in Rockford.","period_of_significance":null,"architect_builder":"Frank A. Carpenter (architect)","architectural_style":"Late 19th and 20th Century Revival: Colonial Revival with Craftsman Detailing","criteria":[],"status_note":"Currently used for civic/social purposes as offices of the Community Foundation of Northern Illinois, which restored and renovated the house after buying it in 2000.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:37.78627-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/73/8943/28894373/content/electronic-records/rg-079/NPS_IL/08001251.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/08001251/aeace67a83-800.webp","url_1600":"https://nationalhistoricalregister.com/media/08001251/aeace67a83-1600.webp","licence":"CC BY-SA 3.0","author":"Teemu08","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Charles_Lundberg_House.JPG\" rel=\"noopener\">Teemu08</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Charles_Lundberg_House.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28894373","wikipedia":"https://en.wikipedia.org/wiki/Charles_Lundberg_House","wikidata":"https://www.wikidata.org/wiki/Q16894382"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/winnebago-county/lundberg-charles-house-08001251/"}