{"nrhp_refnum":"82001960","name":"McLean, Isaac, House","other_names":[],"category":"building","location":{"address":"2218 Massachusetts Ave.","address_restricted":false,"city":"Cambridge","county":"Middlesex County","state":"MA","lat":42.39302400400004,"lon":-71.12584345299996,"geom_source":"nps_gis"},"listed_date":"1982-04-13","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A Colonial Revival house at 2218 Massachusetts Avenue in northwest Cambridge, Massachusetts, built in 1894 for Isaac McLean and designed by Hartwell and Richardson. It has wood exterior walls and a rear carriage house.","why_significant":"The nomination calls it the best example of the domestic Colonial Revival style in Northwest Cambridge. It was designed in 1894 by the well-known architectural firm Hartwell & Richardson, and the owner, Isaac McLean, also served as the builder. The reviewer recommended listing under Criterion C for its architecture.","narrative":"Built in 1894 at 2218 Massachusetts Avenue in Cambridge, this wood-frame house is a domestic Colonial Revival design by the architectural firm Hartwell & Richardson. Isaac McLean, who commissioned it, also acted as its builder. A hip roof covers the center-entrance facade, and the doorway, with an elliptical fanlight and sidelights, sits within a full-width Ionic porch that unifies the front of the house. Pilasters and a central Palladian-style dormer add further classical detail. The Palladian window motif is repeated on the carriage house at the rear of the property, which has since been converted to office use. The house has not been altered or moved. It was listed because it is regarded as the best example of domestic Colonial Revival architecture in Northwest Cambridge, and a reviewer recommended it under the architectural criterion. Today the building serves both residential and commercial purposes.","period_of_significance":null,"architect_builder":"Hartwell and Richardson (architects); Isaac McLean (owner and builder)","architectural_style":"Colonial Revival","criteria":["C"],"status_note":"Present use is given as residential/commercial; the former barn or carriage house is now an office.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:54.056296-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/26/7904/63790426/content/electronic-records/rg-079/NPS_MA/82001960.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/82001960/ffb5625d44-800.webp","url_1600":"https://nationalhistoricalregister.com/media/82001960/ffb5625d44-1600.webp","licence":"Public domain","author":"Daderot","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Isaac_McLean_House,_2218_Massachusetts_Avenue,_Cambridge,_MA_-_IMG_4388.JPG\" rel=\"noopener\">Daderot</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Isaac_McLean_House,_2218_Massachusetts_Avenue,_Cambridge,_MA_-_IMG_4388.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63790426","wikipedia":"https://en.wikipedia.org/wiki/Isaac_McLean_House","wikidata":"https://www.wikidata.org/wiki/Q6076776"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/mclean-isaac-house-82001960/"}