{"nrhp_refnum":"78002333","name":"Lightner, Isaac, House","other_names":[],"category":"building","location":{"address":"2407 Mt. Royal Blvd., Shaler township","address_restricted":false,"city":"Glenshaw","county":"Allegheny County","state":"PA","lat":40.537630352000065,"lon":-79.97249460699999,"geom_source":"nps_gis"},"listed_date":"1978-04-20","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A one and one-half story, five-bay brick house with a center hall entrance, located in Glenshaw, Allegheny County, Pennsylvania. A detached brick summer kitchen stands to the rear, connected to the house by a covered passage.","why_significant":"The nomination describes the house as an excellent example of Greek Revival influence on vernacular architecture, transforming a colonial-style house into a grand temple-form house. It is described as one of the finest surviving examples from the 1830s, remarkably intact, with significant architectural importance to Allegheny County.","narrative":"Built in 1833, this brick house in Glenshaw, Allegheny County, is a one and one-half story, five-bay dwelling with a center hall entrance, two dormer windows and two gable end chimneys. Its plan and proportions are late Georgian, but the detailing follows the later Greek Revival manner. The most notable feature is a large porch with Doric columns and a broad pediment, whose tabernacle-framed eyebrow window is an unusual treatment. Elaborate sidelights and a transom with diamond mullion patterns frame the front door, and the window and door lintels carry recessed circular panels at their corners. Fluted pilasters on the pediment window are repeated at the dormer windows. Behind the house, a brick summer kitchen built at the same time has two finished rooms, a large open fireplace used for cooking, and a brick oven. The interior was modernized in 1929, though its character remains cohesive. The house is regarded as one of the finest surviving examples of its period in the county.","period_of_significance":"1833","architect_builder":null,"architectural_style":"Late Georgian house expressed in the later Greek Revival manner","criteria":[],"status_note":"The interior was modernized in 1929.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:30.509994-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/78002333.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/78002333/821514f569-800.webp","url_1600":"https://nationalhistoricalregister.com/media/78002333/821514f569-1600.webp","licence":"CC BY-SA 4.0","author":"Lee Paxton","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:IsaacLightnerHouse.jpg\" rel=\"noopener\">Lee Paxton</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:IsaacLightnerHouse.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71995683","wikipedia":"https://en.wikipedia.org/wiki/Isaac_Lightner_House","wikidata":"https://www.wikidata.org/wiki/Q6076699"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/allegheny-county/lightner-isaac-house-78002333/"}