@openstreetmap/id-tagging-schema/data/fields/height_building.json

The OpenStreetMap tagging model used by the iD editor

{
    "key": "height",
    "minValue": 0,
    "type": "number",
    "label": "Building Height (Meters)",
    "prerequisiteTag": {
        "key": "building",
        "valueNot": "no"
    }
}