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We off","phone":"+1-415-831-2090","ref:nrhp":"71000184","source":"USGS Geonames","tourism":"attraction","website":"https://conservatoryofflowers.org/","wikidata":"Q5163145","wikipedia":"en:Conservatory of Flowers"},"dimensionEvidence":{"schemaVersion":1,"sources":[{"url":"https://npgallery.nps.gov/NRHP/GetAsset/NRHP/71000184_text","publisher":"National Park Service","file":"conservatory-nrhp.pdf","pagesReviewed":[2],"facts":{"widthFt":250,"depthFt":75,"plan":"elongated octagonal central dome and two L-shaped wings","structure":"wood arches, iron bands/tie rods, brick foundations, shingled rigid glass"}},{"url":"https://gggp.org/about/","publisher":"Gardens of Golden Gate Park","facts":{"1883FireRebuiltDomeRaisedFt":6}},{"url":"https://studyres.com/doc/7771051/lowland-tropics-gallery---conservatory-of-flowers","title":"Lowland Tropics Gallery — Conservatory of Flowers","attributedAuthor":"Conservatory of Flowers education/operator brochure","publicationDate":null,"publicationDateStatus":"Not exposed by indexed mirror; original brochure not retrieved.","page":null,"pageStatus":"Mirror text is unpaginated. Exact heading is ARCHITECTURE / DESIGN / ARTWORK. Original PDF pagination unavailable.","section":"ARCHITECTURE / DESIGN / ARTWORK","accessedAt":"2026-10-08T14:52:00.835271+00:00","retainedEvidence":"brochure-height-evidence.json","exactExcerpt":"the dome is 56 feet in diameter and 55 feet tall. The finial atop the dome is 13 feet tall","facts":{"domeDiameterFt":56,"domeCrownFt":55,"finialHeightFt":13},"provenanceUncertainty":"Operator-attributed brochure is available through indexed mirror text only; direct mirror fetch returned403. Attribution/date/page cannot be independently authenticated against original PDF."},{"url":"https://www.sfchronicle.com/bayarea/article/cityscape-joy-blooms-at-conservatory-of-flowers-3163994.php","title":"Cityscape: Joy blooms at Conservatory of Flowers","publisher":"San Francisco Chronicle","publicationDate":null,"role":"Contemporary architecture field reporting corroborates68ft combined height; not a survey.","facts":{"domeHeightFt":68},"publicationYear":2009,"publicationDateStatus":"Indexed search gives age approximately17.5years as of2026-10; exact day unavailable."},{"url":"https://www.argcreate.com/portfolio/conservatory-of-flowers/","publisher":"Architectural Resources Group (restoration architect)","facts":{"glassWhitewashing":"Each spring glass is whitewashed; winter rains wash it off."}},{"url":"https://tile.loc.gov/storage-services/service/gdc/gdclccn/tm/p9/10/01/33/8/tmp91001338/tmp91001338.pdf","publisher":"Library of Congress, digitized historic San Francisco visitor guide","facts":{"historicDomeHeightFt":58},"scopeUncertainty":"Historic measurement mentions dome58ft but does not define finial inclusion or modern survey datum."}],"authoredDatumsM":{"mainWalls":3.554204946996466,"wingsRoofs":9.240932862190812,"rotundaClerestoryBottom":8.53009187279152,"rotundaClerestoryTop":10.899561837455828,"domeTop":16.764,"rearAnnexRoof":4.50199293286219,"finialHeight":3.9624,"centralFinial":20.7264},"heightDecision":"Authored overall crown approximately20.7m, calculated from55ft dome plus separate13ft finial (16.764+3.9624m exact unit conversions with source/provenance uncertainty, not survey accuracy). OSM15m remains unchanged as contradictory source. Nearly60ft secondary and historic58ft omit explicit finial scope; never added6ft1884 change to an already current measurement.","frame":{"originENU":[0.35,-2.1],"longitudinalAngleDegrees":5.9658},"inferred":"Relative wall, wing, clerestory and service annex heights scaled vertically to the55ft dome crown. Finial profile follows individually inspected current front and angled Commons photos. No claim of surveyed millimetre precision.","sourceHeightM":15,"authoredHeightM":20.7264,"heightDisplay":"approximately20.7m","photoProportionScaleZ":1.1847349823321554},"license":"ODbL-1.0","attribution":"© OpenStreetMap contributors"}