{"nrhp_refnum":"90001047","name":"Gerloff House","other_names":[],"category":"building","location":{"address":"221 E. 12th Ave.","address_restricted":false,"city":"Houston","county":"Harris County","state":"TX","lat":29.79260080000006,"lon":-95.39620550399997,"geom_source":"nps_gis"},"listed_date":"1990-07-17","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A 1 1/2-story wood-frame bungalow-influenced cottage at 221 East 12th Avenue in Houston Heights, Houston, Harris County, Texas, dated 1912 with a major enlargement in 1922.","why_significant":"The nomination calls it a unique example in Houston Heights of a 1 1/2-story closed-gable suburban cottage with bungalow influence. The 1922 enlargement and alterations gave it an individual character among bungalow-influenced dwellings in the area. Significance is local and rests on architecture.","narrative":"Located at 221 East 12th Avenue in Houston Heights, this 1 1/2-story frame house dates to 1912 and was substantially enlarged in 1922. It has a modified L-plan, a pier-and-beam foundation, drop siding and an asphalt roof. An inset porch on the southeast corner is supported by three box columns with square wood balusters. The 1922 work extended the rear by ten feet and replaced the original hipped roof and hipped dormers with a gabled roof and gabled dormers, giving the front and rear of the house a uniform look. The front gable is closed by a pent roof, the rear gable is open, and both hold triple wood windows added in the remodeling. The house was recognized for its architecture at the local level, as a distinctive closed-gable suburban cottage with bungalow influence in Houston Heights. It faces south on a landscaped lot with two mature oaks and is still used as a residence.","period_of_significance":"1900-","architect_builder":null,"architectural_style":"Bungalow","criteria":[],"status_note":"Physical condition is described as excellent; the property remains in residential use, and the original garage is non-contributing.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:21.893188-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/44/9692/40969244/content/electronic-records/rg-079/NPS_TX/90001047.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/90001047/8341a23730-800.webp","url_1600":"https://nationalhistoricalregister.com/media/90001047/8341a23730-1600.webp","licence":"CC BY-SA 4.0","author":"25or6to4","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Gerloff_House,_Houston,_TX.jpg\" rel=\"noopener\">25or6to4</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:Gerloff_House,_Houston,_TX.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40969244","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q140166948"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/harris-county/gerloff-house-90001047/"}