{ "currentVersion": 10.91, "cimVersion": "2.9.0", "id": 43, "name": "Historic Preservaiton Easements", "type": "Feature Layer", "description": "Historic preservation easements are voluntary legal agreements, typically in the form of a deed, that protect a historic property or cultural resource by placing restrictions on the development of, or changes to it. Under the terms of the easement, the property owner grants a portion of, or interest in the property to an organization whose mission includes historic preservation. Donation of an easement to preserve a certified historic structure or historically important land area qualifies as a charitable contribution for federal income and estate tax purposes.Under the DC Uniform Conservation Easement Act of 1986, as amended in 1993 (DC Official Code Sec. 42-202.01), when a conservation easement has been registered with the District, written consent of the easement holder is required before the issuance of a construction permit for exterior work on the property or recordation of a land subdivision for its lot. Easements are registered by presenting proof of recordation to the Historic Preservation Office in the DC Office of Planning.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 26985, "latestWkid": 26985, "xyTolerance": 0.002, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -36747100, "falseY": -29091500, "xyUnits": 1000, "falseZ": 0, "zUnits": 1, "falseM": 0, "mUnits": 1 }, "copyrightText": "DC Historic Preservation Office", "parentLayer": null, "subLayers": [], "minScale": 0, "maxScale": 0, "referenceScale": 0.0, "drawingInfo": { "renderer": { "type": "simple", "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 245, 236, 201, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 110, 110, 110, 255 ], "width": 0.4 } } }, "scaleSymbols": true, "transparency": 40, "labelingInfo": null }, "defaultVisibility": false, "extent": { "xmin": -8582556.275716845, "ymin": 4701803.239458974, "xmax": -8569387.199146653, "ymax": 4718044.751505927, "spatialReference": { "wkid": 102100, "latestWkid": 3857, "xyTolerance": 0.001, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -20037700, "falseY": -30241100, "xyUnits": 10000, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "SSL", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "SSL", "type": "esriFieldTypeString", "alias": "Square, Suffix, Lot", "length": 50, "domain": null }, { "name": "ADDRESS", "type": "esriFieldTypeString", "alias": "Address", "length": 255, "domain": null }, { "name": "ADDL_ADDRESS", "type": "esriFieldTypeString", "alias": "Additional Address", "length": 255, "domain": null }, { "name": "HOLDER", "type": "esriFieldTypeString", "alias": "Holder", "length": 255, "domain": null }, { "name": "UNIQUE_ID", "type": "esriFieldTypeString", "alias": "Unique Identifier", "length": 10, "domain": null }, { "name": "GIS_ID", "type": "esriFieldTypeString", "alias": "GIS Identifier", "length": 50, "domain": null }, { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "SHAPE", "domain": null }, { "name": "SHAPE.AREA", "type": "esriFieldTypeDouble", "alias": "SHAPE.AREA", "domain": null }, { "name": "SHAPE.LEN", "type": "esriFieldTypeDouble", "alias": "SHAPE.LEN", "domain": null }, { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "GLOBALID", "type": "esriFieldTypeGlobalID", "alias": "GLOBALID", "length": 38, "domain": null } ], "geometryField": { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "SHAPE" }, "indexes": [ { "name": "R47447_SDE_ROWID_UK", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "UUID_47447", "fields": "GLOBALID", "isAscending": true, "isUnique": false, "description": "" }, { "name": "A15178_IX1", "fields": "SHAPE", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsExceedsLimitStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON, PBF", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "supportedSpatialRelationships": [ "esriSpatialRelIntersects", "esriSpatialRelContains", "esriSpatialRelCrosses", "esriSpatialRelEnvelopeIntersects", "esriSpatialRelIndexIntersects", "esriSpatialRelOverlaps", "esriSpatialRelTouches", "esriSpatialRelWithin", "esriSpatialRelRelation" ], "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsPercentileStatistics": true, "supportsHavingClause": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsCountDistinct": true, "supportsPagination": true, "supportsLod": false, "supportsQueryWithLodSR": false, "supportsTrueCurve": true, "supportsQueryWithDatumTransformation": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true, "supportsTimeRelation": true, "supportsSqlFormat": false, "supportsQueryAnalytic": true }, "supportsDatumTransformation": true, "advancedQueryAnalyticCapabilities": { "supportsLinearRegression": true, "supportsAsync": false, "supportsPercentileAnalytic": true }, "dateFieldsTimeReference": { "timeZone": "Eastern Standard Time", "respectsDaylightSaving": true }, "preferredTimeReference": null, "datesInUnknownTimezone": false, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "SHAPE.AREA", "shapeLengthFieldName": "SHAPE.LEN", "units": "esriMeters" }, "hasMetadata": true, "isDataArchived": false, "archivingInfo": { "supportsQueryWithHistoricMoment": false, "startArchivingMoment": -1 }, "supportsCoordinatesQuantization": true, "supportsDynamicLegends": true }