{"nrhp_refnum":"07001123","name":"Dorr, Dr. Joseph P., House","other_names":[],"category":"building","location":{"address":"2745 NY 23","address_restricted":false,"city":"Hillsdale","county":"Columbia County","state":"NY","lat":42.182990249000056,"lon":-73.51755420599994,"geom_source":"nps_gis"},"listed_date":"2007-10-31","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Health/Medicine"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story brick Federal-style house with a story-and-a-half kitchen ell, on the north side of New York Route 23 in the hamlet of Hillsdale, Columbia County, New York. It dates to the early 19th century; the form does not give a precise construction date in the text provided.","why_significant":"The nomination presents the house as a substantially intact, relatively unaltered example of early 19th century Federal-style domestic architecture in the region. It also has ties to Dr. Joseph Priestly Dorr and the Dorr family, who were prominent in Columbia County affairs, and to the growth of Hillsdale along the Columbia Turnpike.","narrative":"This brick house on Route 23 in Hillsdale, Columbia County, is a well-preserved example of early 19th century Federal-style domestic architecture. It has an upright main block with a recessed story-and-a-half kitchen ell, built together in a single episode. Walls are load-bearing red brick on a rubble stone foundation, with cut-stone lintels and sills, twelve-over-twelve windows, and a pedimented gable with a leaded elliptical fanlight. Inside are a side hall and double parlors, five wood mantels, six-panel doors, plaster walls, and a kitchen hearth with a bake oven. Changes have been limited, though parquet floors and a Greek Revival-style door surround were added later. The house was associated with Dr. Joseph P. Dorr, whose family was prominent in Columbia County in the 19th century. It was built as Hillsdale grew from activity along the Columbia Turnpike, and it remains a single-family dwelling with a modified carriage barn on the grounds.","period_of_significance":null,"architect_builder":null,"architectural_style":"Early Republic: Federal","criteria":[],"status_note":"Still used as a single dwelling. The carriage barn was recently rehabilitated and significantly modified.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:53.092053-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/07001123.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75316988","wikipedia":"https://en.wikipedia.org/wiki/Dr._Joseph_P._Dorr_House","wikidata":"https://www.wikidata.org/wiki/Q5304218"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/columbia-county/dorr-dr-joseph-p-house-07001123/"}