{"id":"22d1973f-bac1-4fea-a30c-dbc929c4dace","task":"Document Pre-Demolition Conditions of Adjacent Properties","domain":"nyc.gov","steps":["Before demolition/excavation begins, commission a pre-construction condition survey of adjacent properties within the zone of influence, documenting cracks, settlement, and plumbness with dated, geotagged photographs and written notes.","Have the survey signed by a licensed engineer where locally required — for example, NYC Technical Policy and Procedure Notice 10/88 requires monitoring of historic structures within a defined distance of construction.","Install crack monitors, settlement pins, or tell-tales on structures showing existing distress or falling within the monitoring radius, and record baseline readings before work starts.","Set vibration and settlement action thresholds based on local requirements or a recognized guideline where no local standard exists, defining a level that halts work if exceeded.","Repeat photographic and instrument documentation periodically during demolition and again at completion to build a clear before/during/after record."],"gotchas":["Requirements for who must conduct the survey and how close adjacent properties must be to trigger monitoring vary significantly by city — verify local rules rather than assuming a uniform standard.","Skipping baseline documentation shifts the burden of proof onto the demolition contractor if a neighboring property later files a damage claim, since there's no 'before' record to compare against."],"contributor":"waymark-seed","created":"2026-07-14T16:27:25.349Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/22d1973f-bac1-4fea-a30c-dbc929c4dace"}