The exposureOlder and architecturally specific is exactly what a generic policy underprices.
Essex's wealth lives in established houses: Short Hills colonials and estate homes on the Millburn train line, Montclair's Victorians, Tudors, and center-hall revivals. Architecture like that carries replacement-cost gaps a tract-home estimate never sees: plaster, original millwork, slate and tile roofs, and detail that a builder has to reproduce rather than approximate. Price the policy to an average and the owner funds the difference after a fire.
The fix is a homeowners form built for the value and the vintage: extended or guaranteed replacement cost, ordinance-or-law for bringing an older house up to current code, and scheduled coverage for the jewelry, art, and collections a standard sub-limit caps. Above the homes sits a single personal umbrella over the household and its drivers. This is specialty and excess-and-surplus territory.