{
  "source": "OpenStreetMap geometry captured through Overpass; Historic England architectural descriptions; Piccadilly Lights owner description",
  "license": "OSM geometry: ODbL 1.0; Historic England text facts: Open Government Licence v3.0; original procedural illustrations: drawn in site code, no third-party visual asset",
  "attribution": "\u00a9 OpenStreetMap contributors; Historic England, National Heritage List for England",
  "retrieved": "2026-10-07",
  "placeId": "soho",
  "frame": {
    "width": 935.0,
    "height": 1000.0,
    "metresPerUnit": 1.481911,
    "crs": "EPSG:27700",
    "bngBounds": [
      528870.9731619344,
      180306.0998558951,
      530256.5303342249,
      181788.010477249
    ],
    "origin": {
      "easting": 528870.9731619344,
      "northing": 181788.010477249
    },
    "yAxis": "south"
  },
  "build": {
    "method": "OSM EPSG:4326 coordinates transformed to EPSG:27700 using pyproj; then x = (easting - frame origin easting) / metresPerUnit and y = (frame origin northing - northing) / metresPerUnit. Pavilion face endpoints match the existing simplified mapped footprint exactly.",
    "osmCapture": "2026-10-07T15:17:20.693865+00:00",
    "osmCaptureSha256": "eecb270dd68b132191d530f44ceab4f9f4e7c4de315e90f4edd9c4a6d1752bca"
  },
  "landmarks": {
    "fountain": {
      "name": "Shaftesbury Memorial Fountain",
      "osmType": "way",
      "osmId": 583928480,
      "href": "https://www.openstreetmap.org/way/583928480",
      "heritageHref": "https://historicengland.org.uk/listing/the-list/list-entry/1265625",
      "evidence": "sourced",
      "ring": [
        [
          461.9892,
          769.8888
        ],
        [
          461.7708,
          771.246
        ],
        [
          462.5176,
          772.2332
        ],
        [
          463.9134,
          772.4003
        ],
        [
          464.7395,
          771.7185
        ],
        [
          465.0482,
          770.4116
        ],
        [
          464.3561,
          769.3629
        ],
        [
          462.9076,
          769.1521
        ],
        [
          461.9892,
          769.8888
        ]
      ],
      "centre": [
        463.4053,
        770.8017
      ],
      "formFacts": [
        "octagonal bronze fountain",
        "stepped platform",
        "winged aluminium archer"
      ],
      "illustration": {
        "evidence": "illustrative",
        "platformDiameterM": 9.2,
        "heightM": 7.9,
        "limits": "Placement and basin outline are mapped; platform extent, height, bowl profiles, statue pose and all sculptural detail are procedural interpretation, not a survey or photogrammetry."
      }
    },
    "lights": {
      "name": "Piccadilly Lights",
      "osmType": "way",
      "osmId": 153661809,
      "href": "https://www.openstreetmap.org/way/153661809",
      "descriptionHref": "https://spotlight.landsec.com/locations/piccadilly-lights-screen/",
      "evidence": "derived",
      "frontage": [
        [
          469.7529,
          730.5393
        ],
        [
          466.1923,
          739.01
        ],
        [
          465.0646,
          741.6444
        ],
        [
          463.5543,
          743.6052
        ],
        [
          461.8057,
          744.4908
        ],
        [
          459.7364,
          744.9265
        ],
        [
          457.3138,
          744.9206
        ],
        [
          455.0953,
          744.2788
        ],
        [
          447.4125,
          741.2158
        ],
        [
          440.9518,
          738.6697
        ],
        [
          440.8525,
          738.6347
        ]
      ],
      "frontageLengthM": 57.286,
      "illustration": {
        "evidence": "illustrative",
        "baseM": 7.7,
        "heightM": 13.5,
        "outwardOffsetM": 1.2,
        "limits": "The illuminated surface follows the mapped south-facing building corner. Selection of this facade as the screen carrier is interpreted from the owner description. Vertical extent, offset and display graphic are illustrative. No advertiser, brand, current campaign, audience count or media performance is represented."
      }
    },
    "pavilion": {
      "name": "London Pavilion",
      "osmType": "way",
      "osmId": 369245408,
      "href": "https://www.openstreetmap.org/way/369245408",
      "heritageHref": "https://historicengland.org.uk/listing/the-list/list-entry/1226674",
      "evidence": "sourced",
      "ring": [
        [
          504,
          747
        ],
        [
          490,
          719
        ],
        [
          488,
          718
        ],
        [
          476,
          748
        ],
        [
          504,
          747
        ]
      ],
      "levels": 4.0,
      "facades": [
        {
          "name": "Circus front",
          "a": [
            476,
            748
          ],
          "b": [
            504,
            747
          ],
          "bays": 9
        },
        {
          "name": "Shaftesbury Avenue front",
          "a": [
            488,
            718
          ],
          "b": [
            476,
            748
          ],
          "bays": 11
        },
        {
          "name": "Great Windmill Street side",
          "a": [
            504,
            747
          ],
          "b": [
            488,
            718
          ],
          "bays": 9
        }
      ],
      "formFacts": [
        "stucco facing",
        "triangular site",
        "nine-window Circus front",
        "eleven-window Shaftesbury Avenue front",
        "central pedimented pavilions",
        "two-storey column portico",
        "tall arcades and attic square windows"
      ],
      "illustration": {
        "evidence": "illustrative",
        "storeyM": 3.2,
        "limits": "Heritage description supplies the architectural vocabulary and principal bay counts. Heights, exact openings, colours, column profiles, depth, roof silhouette and proportions are illustrative on the mapped footprint. This is not an as-built model or BIM. The OSM stone tag and Historic England stucco description are separate evidence, neither is a quantified material inventory."
      }
    }
  },
  "geographicOrientation": {
    "crs": "EPSG:4326",
    "purpose": "Sparse metropolitan labels on the real London imagery, not local 3D features or analytical coverage. Outside-Soho points must never be translated into the local frame.",
    "anchors": [
      {
        "id": "westminster",
        "label": "Big Ben \u00b7 Westminster",
        "osmType": "way",
        "osmId": 123557148,
        "href": "https://www.openstreetmap.org/way/123557148",
        "latitude": 51.5007011,
        "longitude": -0.1245731,
        "evidence": "derived",
        "locationMethod": "Centre of the current OSM way bounds, read from the primary OSM API. Orientation point only, not a surveyed position.",
        "retrieved": "2026-10-07",
        "version": 51,
        "sourceTimestamp": "2026-08-13T10:25:34Z",
        "sourceUrl": "https://api.openstreetmap.org/api/0.6/way/123557148/full",
        "licence": "ODbL 1.0",
        "attribution": "\u00a9 OpenStreetMap contributors"
      },
      {
        "id": "tower-bridge",
        "label": "Tower Bridge",
        "osmType": "way",
        "osmId": 378541210,
        "href": "https://www.openstreetmap.org/way/378541210",
        "latitude": 51.5055379,
        "longitude": -0.0753408,
        "evidence": "derived",
        "locationMethod": "Centre of the current OSM way bounds, read from the primary OSM API. Orientation point only, not a surveyed position.",
        "retrieved": "2026-10-07",
        "version": 37,
        "sourceTimestamp": "2023-11-11T21:13:00Z",
        "sourceUrl": "https://api.openstreetmap.org/api/0.6/way/378541210/full",
        "licence": "ODbL 1.0",
        "attribution": "\u00a9 OpenStreetMap contributors"
      },
      {
        "id": "regents-park",
        "label": "Regent's Park",
        "osmType": "relation",
        "osmId": 1384127,
        "href": "https://www.openstreetmap.org/relation/1384127",
        "latitude": 51.5301326,
        "longitude": -0.1537641,
        "evidence": "derived",
        "locationMethod": "OSM Nominatim representative point for the park relation, not the similarly named station. Orientation point only.",
        "retrieved": "2026-10-07",
        "sourceUrl": "https://nominatim.openstreetmap.org/search?q=Regent%27s+Park+London&format=jsonv2&limit=4",
        "licence": "ODbL 1.0",
        "attribution": "\u00a9 OpenStreetMap contributors"
      },
      {
        "id": "piccadilly",
        "label": "Piccadilly Circus",
        "osmType": "way",
        "osmId": 583928480,
        "href": "https://www.openstreetmap.org/way/583928480",
        "latitude": 51.5098958,
        "longitude": -0.1344859,
        "evidence": "derived",
        "locationMethod": "Centre of mapped feature bounds in the captured OSM extract. Piccadilly anchor is its memorial fountain; Regent Street anchor is one road segment. Orientation points only.",
        "retrieved": "2026-10-07",
        "sourceTimestamp": "2026-10-07T15:17:20.693865+00:00",
        "sourceUrl": "https://overpass-api.de/api/interpreter",
        "licence": "ODbL 1.0",
        "attribution": "\u00a9 OpenStreetMap contributors"
      },
      {
        "id": "regent-street",
        "label": "Regent Street",
        "osmType": "way",
        "osmId": 38748498,
        "href": "https://www.openstreetmap.org/way/38748498",
        "latitude": 51.5116776,
        "longitude": -0.1393011,
        "evidence": "derived",
        "locationMethod": "Centre of mapped feature bounds in the captured OSM extract. Piccadilly anchor is its memorial fountain; Regent Street anchor is one road segment. Orientation points only.",
        "retrieved": "2026-10-07",
        "sourceTimestamp": "2026-10-07T15:17:20.693865+00:00",
        "sourceUrl": "https://overpass-api.de/api/interpreter",
        "licence": "ODbL 1.0",
        "attribution": "\u00a9 OpenStreetMap contributors"
      }
    ]
  }
}