{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.wall","code":"thing-q42948","url":"https://ver.cy/models/thing/q42948/","name":"wall","alternateNames":["thatched wall","ha-ha","choir fence","crinkle crankle wall","muralt wall","plank wall","boundary wall","flood wall","Pick-A-Brick Wall","terraced wall","brick wall","retaining wall"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A wall is a vertical, usually solid structure that defines, divides, encloses or sometimes protects an area, including exterior and interior building walls, freestanding boundary and garden walls, and retaining walls that hold back soil.","purpose":"Let an agent handle building and freestanding walls by type, construction, ownership, stability and heritage.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Walls can form part of a building or stand independently.","Walls can raise boundary and ownership questions.","Walls can collapse if poorly built.","Building walls can enclose spaces, divide rooms or support structural loads."],"structure":{"bundles":[{"id":"type","name":"Type","description":"Which wall.","layers":[{"id":"kind","name":"Kind","description":"Boundary, garden, retaining.","findings":[{"id":"kind-finding","name":"Kind","description":"Wall type.","questions":[{"text":"What type of freestanding wall is it?","kind":"definition"},{"text":"What is it made of?","kind":"definition"}]}]},{"id":"size","name":"Size","description":"Height and length.","findings":[{"id":"size-finding","name":"Size","description":"Dimensions.","questions":[{"text":"How high and long is it?","kind":"measurement"},{"text":"Does it need planning permission?","kind":"boundary"}]}]}]},{"id":"stability","name":"Stability","description":"Safety.","layers":[{"id":"condition","name":"Condition","description":"Cracks and lean.","findings":[{"id":"condition-finding","name":"Condition","description":"Condition.","questions":[{"text":"Is the wall leaning, cracked or bulging?","kind":"measurement"},{"text":"Is it safe?","kind":"boundary"}]}]},{"id":"repair","name":"Repair","description":"Fixing.","findings":[{"id":"repair-finding","name":"Repair","description":"Repair.","questions":[{"text":"What repairs are needed?","kind":"action"},{"text":"Who should do them?","kind":"action"}]}]}]},{"id":"ownership","name":"Ownership","description":"Whose wall.","layers":[{"id":"boundary","name":"Boundary","description":"Which side.","findings":[{"id":"boundary-finding","name":"Boundary","description":"Ownership.","questions":[{"text":"Who owns the wall?","kind":"provenance"},{"text":"Is it shared?","kind":"boundary"}]}]},{"id":"disputes","name":"Disputes","description":"Resolution.","findings":[{"id":"disputes-finding","name":"Disputes","description":"Dispute resolution.","questions":[{"text":"How are wall disputes resolved?","kind":"action"},{"text":"Which law applies?","kind":"provenance"}]}]}]},{"id":"heritage","name":"Heritage","description":"Historic walls.","layers":[{"id":"status","name":"Status","description":"Listing.","findings":[{"id":"status-finding","name":"Status","description":"Heritage status.","questions":[{"text":"Is the wall protected?","kind":"provenance"},{"text":"What consent is needed?","kind":"boundary"}]}]},{"id":"history","name":"History","description":"Origins.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"When and why was it built?","kind":"provenance"},{"text":"What is its significance?","kind":"definition"}]}]}]}]},"agentConduct":{"may":["Inspect and report the condition of a wall, such as cracks or leaning.","Describe a boundary wall from maps and public records."],"mustNot":["Damage, demolish or climb over a wall without the owner's permission.","Alter a boundary wall in a way that moves a property line.","Leave an unstable wall standing near people without warning.","Damage a historic or listed wall."],"requiresHuman":["Demolishing or rebuilding a boundary wall.","Settling a dispute over who owns a wall."]},"ethics":{"considerations":["Walls mark boundaries; changing them can take land or start disputes between neighbours.","Collapsing walls injure people, and historic walls carry heritage."],"affectedParties":["Owners on both sides","Passers-by"]},"owners":{"steward":"The owner of the land it stands on, or both neighbours jointly for a party wall.","roles":[],"masterSystems":["Land registry or cadastre","Heritage registers where listed"]},"relations":[{"target":"Q1058733","type":"parent","note":"registry parent class"},{"target":"Q27627826","type":"parent","note":"registry parent class"},{"target":"Q66098993","type":"parent","note":"registry parent class"},{"target":"Q811979","type":"parent","note":"registry parent class"},{"target":"separation barrier","type":"related","note":"structure"},{"target":"wall in a building","type":"related","note":"building element"},{"target":"property boundary","type":"related","note":"use"},{"target":"heritage","type":"related","note":"listing"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.wall","Wikidata: Q42948 (https://www.wikidata.org/wiki/Q42948)"]},"properties":{"applicability":"required","items":["height: 0.5-5 m","wind load: site-dependent kN/m2 - affects stability"]},"recognition":{"applicability":"required","items":["Freestanding boundary structures","Types such as ha-ha or crinkle-crankle","Retaining walls hold back soil","Masonry, timber, earth or thatched walls standing alone; crinkle-crankle walls curve; ha-has are sunken."]},"capabilities":{"applicability":"required","items":["build and repair it","check its stability","resolve boundary questions","protect historic walls"]},"hazards":{"applicability":"required","items":["Collapse onto people","Boundary disputes","Retaining wall failure"]},"interfaces":{"applicability":"required","items":["Planning rules on wall heights","Party wall and boundary law","Heritage protection law"]},"context":{"applicability":"required","items":["Marking boundaries, providing privacy and security, retaining land and sheltering gardens.","boundary walls","garden walls including crinkle-crankle walls","retaining walls","ha-has","timber and thatched walls"]}},"sources":[{"title":"Wikidata item Q42948: wall","url":"https://www.wikidata.org/wiki/Q42948","note":"identity and sense of the item"},{"title":"Wikipedia: Wall","url":"https://en.wikipedia.org/wiki/Wall","note":"general description of the item"}],"openQuestions":["Should wall types be separate entries?","How should boundary ownership be recorded?","How should the building wall entry be linked?"],"resources":{"spec":"/models/things/publications/thing-q42948/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q42948/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T06:25:11Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:31+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}