Why does an inspector consider what has recently changed at a property when interpreting a symptom?

Sequence is evidence. A symptom that appeared after work was done in the same area is more likely connected to that work than to coincidence — a leak that began after a bathroom remodel, staining that started after a roof replacement, a room that stopped heating after a basement was finished. Recent work is also where installation defects are freshest and most likely to be uncorrected. Using that reasoning well requires care in both directions: recent work is a strong lead but not a proof, since a symptom can emerge for unrelated reasons at any time, and the inspector reports the association rather than asserting causation. Nor does noting the connection assign responsibility, which is a matter between the parties and their contracts. The value is in directing the investigation to the most probable place first.

A symptom appearing after work in the same area points toward that work as a probable cause, which is a useful lead for directing further evaluation. The inspector reports the association without asserting it as proof.

Inspectors interpret conditions in context, including the sequence of events. Recent alterations are common sources of defects, and correlating a symptom with work in the same area helps direct further evaluation without asserting causation.

After the Work, Look at the Work. Sequence is a lead, not a verdict — say 'appeared after', not 'was caused by'.

Ask the client or the disclosure about recent work. The timeline is frequently available and turns a puzzling symptom into a directed search.

• •Asserting recent work as the definite cause
• •Using the observation to assign responsibility between parties
• •Failing to ask about recent work when a symptom is unexplained